Add collectors for perf command and perf_event_open system call

* Remove go-toolkit as build requirement for RPM builds if run in CI

* Remove condition around BuildRequires and use go-toolkit for RPM builds

* use go-toolkit for RPM builds

* Install go-toolkit to fulfill build requirements for RPM

* Add golang-race for UBI9 and Alma9

* Fix wrongly named packages

.github/ci-config.json

@@ -3,6 +3,6 @@
   "collectors" : ".github/ci-collectors.json",
   "receivers" : ".github/ci-receivers.json",
   "router" : ".github/ci-router.json",
-  "interval": 5,
-  "duration": 1
+  "interval": "5s",
+  "duration": "1s"
 }

.github/ci-receivers.json

@@ -1 +1 @@
-[]
+{}

.github/ci-sinks.json

@@ -1,6 +1,8 @@
-[
-  {
+{
+  "testoutput" : {
     "type" : "stdout",
-    "meta_as_tags" : true
+    "meta_as_tags" : [
+      "unit"
+    ]
   }
-]
+}

.github/workflows/Release.yml

@@ -0,0 +1,504 @@
+# See: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions
+
+# Workflow name
+name: Release
+
+# Run on tag push
+on:
+ push:
+  tags:
+  - '**'
+ workflow_dispatch:
+
+jobs:
+
+  #
+  # Build on AlmaLinux 8 using go-toolset
+  #
+  AlmaLinux8-RPM-build:
+    runs-on: ubuntu-latest
+    # See: https://hub.docker.com/_/almalinux
+    container: almalinux:8
+    # The job outputs link to the outputs of the 'rpmrename' step
+    # Only job outputs can be used in child jobs
+    outputs:
+      rpm : ${{steps.rpmrename.outputs.RPM}}
+      srpm : ${{steps.rpmrename.outputs.SRPM}}
+    steps:
+
+    # Use dnf to install development packages
+    - name: Install development packages
+      run: |
+          dnf --assumeyes group install "Development Tools" "RPM Development Tools"
+          dnf --assumeyes install wget openssl-devel diffutils delve which
+
+    # Checkout git repository and submodules
+    # fetch-depth must be 0 to use git describe
+    # See: https://github.com/marketplace/actions/checkout
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        fetch-depth: 0
+
+    # - name: Setup Golang
+    #   uses: actions/setup-go@v5
+    #   with:
+    #     go-version: 'stable'
+    - name: Setup Golang
+      run: |
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/go-toolset-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-bin-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-src-1.22.9-1.module_el8.10.0+3938+8c723e16.noarch.rpm
+
+    - name: RPM build MetricCollector
+      id: rpmbuild
+      run: |
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+          make RPM
+
+    # AlmaLinux 8 is a derivate of RedHat Enterprise Linux 8 (UBI8),
+    # so the created RPM both contain the substring 'el8' in the RPM file names
+    # This step replaces the substring 'el8' to 'alma8'. It uses the move operation
+    # because it is unclear whether the default AlmaLinux 8 container contains the
+    # 'rename' command. This way we also get the new names for output.
+    - name: Rename RPMs (s/el8/alma8/)
+      id: rpmrename
+      run: |
+        OLD_RPM="${{steps.rpmbuild.outputs.RPM}}"
+        OLD_SRPM="${{steps.rpmbuild.outputs.SRPM}}"
+        NEW_RPM="${OLD_RPM/el8/alma8}"
+        NEW_SRPM=${OLD_SRPM/el8/alma8}
+        mv "${OLD_RPM}" "${NEW_RPM}"
+        mv "${OLD_SRPM}" "${NEW_SRPM}"
+        echo "SRPM=${NEW_SRPM}" >> $GITHUB_OUTPUT
+        echo "RPM=${NEW_RPM}" >> $GITHUB_OUTPUT
+
+    # See: https://github.com/actions/upload-artifact
+    - name: Save RPM as artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: cc-metric-collector RPM for AlmaLinux 8
+        path: ${{ steps.rpmrename.outputs.RPM }}
+        overwrite: true
+    - name: Save SRPM as artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: cc-metric-collector SRPM for AlmaLinux 8
+        path: ${{ steps.rpmrename.outputs.SRPM }}
+        overwrite: true
+
+  #
+  # Build on AlmaLinux 9 using go-toolset
+  #
+  AlmaLinux9-RPM-build:
+    runs-on: ubuntu-latest
+    # See: https://hub.docker.com/_/almalinux
+    container: almalinux:9
+    # The job outputs link to the outputs of the 'rpmrename' step
+    # Only job outputs can be used in child jobs
+    outputs:
+      rpm : ${{steps.rpmrename.outputs.RPM}}
+      srpm : ${{steps.rpmrename.outputs.SRPM}}
+    steps:
+
+    # Use dnf to install development packages
+    - name: Install development packages
+      run: |
+          dnf --assumeyes group install "Development Tools" "RPM Development Tools"
+          dnf --assumeyes install wget openssl-devel diffutils delve which
+
+    # Checkout git repository and submodules
+    # fetch-depth must be 0 to use git describe
+    # See: https://github.com/marketplace/actions/checkout
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        fetch-depth: 0
+
+    # - name: Setup Golang
+    #   uses: actions/setup-go@v5
+    #   with:
+    #     go-version: 'stable'
+    - name: Setup Golang
+      run: |
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/go-toolset-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-bin-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-src-1.22.7-2.el9_5.noarch.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-race-1.22.7-2.el9_5.x86_64.rpm
+
+    - name: RPM build MetricCollector
+      id: rpmbuild
+      run: |
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+          make RPM
+
+    # AlmaLinux 9 is a derivate of RedHat Enterprise Linux 8 (UBI8),
+    # so the created RPM both contain the substring 'el9' in the RPM file names
+    # This step replaces the substring 'el8' to 'alma8'. It uses the move operation
+    # because it is unclear whether the default AlmaLinux 8 container contains the
+    # 'rename' command. This way we also get the new names for output.
+    - name: Rename RPMs (s/el9/alma9/)
+      id: rpmrename
+      run: |
+        OLD_RPM="${{steps.rpmbuild.outputs.RPM}}"
+        OLD_SRPM="${{steps.rpmbuild.outputs.SRPM}}"
+        NEW_RPM="${OLD_RPM/el9/alma9}"
+        NEW_SRPM=${OLD_SRPM/el9/alma9}
+        mv "${OLD_RPM}" "${NEW_RPM}"
+        mv "${OLD_SRPM}" "${NEW_SRPM}"
+        echo "SRPM=${NEW_SRPM}" >> $GITHUB_OUTPUT
+        echo "RPM=${NEW_RPM}" >> $GITHUB_OUTPUT
+
+    # See: https://github.com/actions/upload-artifact
+    - name: Save RPM as artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: cc-metric-collector RPM for AlmaLinux 9
+        path: ${{ steps.rpmrename.outputs.RPM }}
+        overwrite: true
+    - name: Save SRPM as artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: cc-metric-collector SRPM for AlmaLinux 9
+        path: ${{ steps.rpmrename.outputs.SRPM }}
+        overwrite: true
+
+  #
+  # Build on UBI 8 using go-toolset
+  #
+  UBI-8-RPM-build:
+    runs-on: ubuntu-latest
+    # See: https://catalog.redhat.com/software/containers/ubi8/ubi/5c35984d70cc534b3a3784e?container-tabs=gti
+    container: registry.access.redhat.com/ubi8/ubi:8.8-1032.1692772289
+    # The job outputs link to the outputs of the 'rpmbuild' step
+    outputs:
+      rpm : ${{steps.rpmbuild.outputs.RPM}}
+      srpm : ${{steps.rpmbuild.outputs.SRPM}}
+    steps:
+
+    # Use dnf to install development packages
+    - name: Install development packages
+      run: dnf --assumeyes --disableplugin=subscription-manager install rpm-build go-srpm-macros rpm-build-libs rpm-libs gcc make python38 git wget openssl-devel diffutils delve which
+
+    # Checkout git repository and submodules
+    # fetch-depth must be 0 to use git describe
+    # See: https://github.com/marketplace/actions/checkout
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        fetch-depth: 0
+
+    # - name: Setup Golang
+    #   uses: actions/setup-go@v5
+    #   with:
+    #     go-version: 'stable'
+    - name: Setup Golang
+      run: |
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/go-toolset-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-bin-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-src-1.22.9-1.module_el8.10.0+3938+8c723e16.noarch.rpm
+
+    - name: RPM build MetricCollector
+      id: rpmbuild
+      run: |
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+          make RPM
+
+    # See: https://github.com/actions/upload-artifact
+    - name: Save RPM as artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: cc-metric-collector RPM for UBI 8
+        path: ${{ steps.rpmbuild.outputs.RPM }}
+        overwrite: true
+    - name: Save SRPM as artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: cc-metric-collector SRPM for UBI 8
+        path: ${{ steps.rpmbuild.outputs.SRPM }}
+        overwrite: true
+
+  #
+  # Build on UBI 9 using go-toolset
+  #
+  UBI-9-RPM-build:
+    runs-on: ubuntu-latest
+    # See: https://catalog.redhat.com/software/containers/ubi8/ubi/5c359854d70cc534b3a3784e?container-tabs=gti
+    container: redhat/ubi9
+    # The job outputs link to the outputs of the 'rpmbuild' step
+    # The job outputs link to the outputs of the 'rpmbuild' step
+    outputs:
+      rpm : ${{steps.rpmbuild.outputs.RPM}}
+      srpm : ${{steps.rpmbuild.outputs.SRPM}}
+    steps:
+
+    # Use dnf to install development packages
+    - name: Install development packages
+      run: dnf --assumeyes --disableplugin=subscription-manager install rpm-build go-srpm-macros gcc make python39 git wget openssl-devel diffutils delve 
+
+    # Checkout git repository and submodules
+    # fetch-depth must be 0 to use git describe
+    # See: https://github.com/marketplace/actions/checkout
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        fetch-depth: 0
+
+    # See: https://github.com/marketplace/actions/setup-go-environment
+    # - name: Setup Golang
+    #   uses: actions/setup-go@v5
+    #   with:
+    #     go-version: 'stable'
+    - name: Setup Golang
+      run: |
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/go-toolset-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-bin-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-src-1.22.7-2.el9_5.noarch.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-race-1.22.7-2.el9_5.x86_64.rpm
+
+    - name: RPM build MetricCollector
+      id: rpmbuild
+      run: |
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+          make RPM
+
+    # See: https://github.com/actions/upload-artifact
+    - name: Save RPM as artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: cc-metric-collector RPM for UBI 9
+        path: ${{ steps.rpmbuild.outputs.RPM }}
+        overwrite: true
+    - name: Save SRPM as artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: cc-metric-collector SRPM for UBI 9
+        path: ${{ steps.rpmbuild.outputs.SRPM }}
+        overwrite: true
+
+  #
+  # Build on Ubuntu 22.04 using official go package
+  #
+  Ubuntu-jammy-build:
+    runs-on: ubuntu-latest
+    container: ubuntu:22.04
+    # The job outputs link to the outputs of the 'debrename' step
+    # Only job outputs can be used in child jobs
+    outputs:
+      deb : ${{steps.debrename.outputs.DEB}}
+    steps:
+    # Use apt to install development packages
+    - name: Install development packages
+      run: |
+          apt update && apt --assume-yes upgrade
+          apt --assume-yes install build-essential sed git wget bash
+    # Checkout git repository and submodules
+    # fetch-depth must be 0 to use git describe
+    # See: https://github.com/marketplace/actions/checkout
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        fetch-depth: 0
+
+    - name: Setup Golang
+      uses: actions/setup-go@v5
+      with:
+        go-version: 'stable'
+
+    - name: DEB build MetricCollector
+      id: dpkg-build
+      run: |
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+          make DEB
+    - name: Rename DEB (add '_ubuntu22.04')
+      id: debrename
+      run: |
+        OLD_DEB_NAME=$(echo "${{steps.dpkg-build.outputs.DEB}}" | rev | cut -d '.' -f 2- | rev)
+        NEW_DEB_FILE="${OLD_DEB_NAME}_ubuntu22.04.deb"
+        mv "${{steps.dpkg-build.outputs.DEB}}" "${NEW_DEB_FILE}"
+        echo "DEB=${NEW_DEB_FILE}" >> $GITHUB_OUTPUT
+    # See: https://github.com/actions/upload-artifact
+    - name: Save DEB as artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: cc-metric-collector DEB for Ubuntu 22.04
+        path: ${{ steps.debrename.outputs.DEB }}
+        overwrite: true
+
+ #
+  # Build on Ubuntu 24.04 using official go package
+  #
+  Ubuntu-noblenumbat-build:
+    runs-on: ubuntu-latest
+    container: ubuntu:24.04
+    # The job outputs link to the outputs of the 'debrename' step
+    # Only job outputs can be used in child jobs
+    outputs:
+      deb : ${{steps.debrename.outputs.DEB}}
+    steps:
+    # Use apt to install development packages
+    - name: Install development packages
+      run: |
+          apt update && apt --assume-yes upgrade
+          apt --assume-yes install build-essential sed git wget bash
+    # Checkout git repository and submodules
+    # fetch-depth must be 0 to use git describe
+    # See: https://github.com/marketplace/actions/checkout
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        fetch-depth: 0
+
+    - name: Setup Golang
+      uses: actions/setup-go@v5
+      with:
+        go-version: 'stable'
+
+    - name: DEB build MetricCollector
+      id: dpkg-build
+      run: |
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+          make DEB
+    - name: Rename DEB (add '_ubuntu24.04')
+      id: debrename
+      run: |
+        OLD_DEB_NAME=$(echo "${{steps.dpkg-build.outputs.DEB}}" | rev | cut -d '.' -f 2- | rev)
+        NEW_DEB_FILE="${OLD_DEB_NAME}_ubuntu24.04.deb"
+        mv "${{steps.dpkg-build.outputs.DEB}}" "${NEW_DEB_FILE}"
+        echo "DEB=${NEW_DEB_FILE}" >> $GITHUB_OUTPUT
+    # See: https://github.com/actions/upload-artifact
+    - name: Save DEB as artifact
+      uses: actions/upload-artifact@v4
+      with:
+        name: cc-metric-collector DEB for Ubuntu 24.04
+        path: ${{ steps.debrename.outputs.DEB }}
+        overwrite: true
+
+
+  #
+  # Create release with fresh RPMs
+  #
+  Release:
+    runs-on: ubuntu-latest
+    # We need the RPMs, so add dependency
+    needs: [AlmaLinux8-RPM-build, AlmaLinux9-RPM-build, UBI-8-RPM-build, UBI-9-RPM-build, Ubuntu-jammy-build, Ubuntu-noblenumbat-build]
+
+    steps:
+    # See: https://github.com/actions/download-artifact
+    - name: Download AlmaLinux 8 RPM
+      uses: actions/download-artifact@v4
+      with:
+        name: cc-metric-collector RPM for AlmaLinux 8
+    - name: Download AlmaLinux 8 SRPM
+      uses: actions/download-artifact@v4
+      with:
+        name: cc-metric-collector SRPM for AlmaLinux 8
+
+    - name: Download AlmaLinux 9 RPM
+      uses: actions/download-artifact@v4
+      with:
+        name: cc-metric-collector RPM for AlmaLinux 9
+    - name: Download AlmaLinux 9 SRPM
+      uses: actions/download-artifact@v4
+      with:
+        name: cc-metric-collector SRPM for AlmaLinux 9
+
+    - name: Download UBI 8 RPM
+      uses: actions/download-artifact@v4
+      with:
+        name: cc-metric-collector RPM for UBI 8
+    - name: Download UBI 8 SRPM
+      uses: actions/download-artifact@v4
+      with:
+        name: cc-metric-collector SRPM for UBI 8
+
+    - name: Download UBI 9 RPM
+      uses: actions/download-artifact@v4
+      with:
+        name: cc-metric-collector RPM for UBI 9
+    - name: Download UBI 9 SRPM
+      uses: actions/download-artifact@v4
+      with:
+        name: cc-metric-collector SRPM for UBI 9
+
+    - name: Download Ubuntu 22.04 DEB
+      uses: actions/download-artifact@v4
+      with:
+        name: cc-metric-collector DEB for Ubuntu 22.04
+
+    - name: Download Ubuntu 24.04 DEB
+      uses: actions/download-artifact@v4
+      with:
+        name: cc-metric-collector DEB for Ubuntu 24.04
+
+    # The download actions do not publish the name of the downloaded file,
+    # so we re-use the job outputs of the parent jobs. The files are all
+    # downloaded to the current folder.
+    # The gh-release action afterwards does not accept file lists but all
+    # files have to be listed at 'files'. The step creates one output per
+    # RPM package (2 per distro)
+    - name: Set RPM variables
+      id: files
+      run: |
+        ALMA_8_RPM=$(basename "${{ needs.AlmaLinux8-RPM-build.outputs.rpm}}")
+        ALMA_8_SRPM=$(basename "${{ needs.AlmaLinux8-RPM-build.outputs.srpm}}")
+        ALMA_9_RPM=$(basename "${{ needs.AlmaLinux9-RPM-build.outputs.rpm}}")
+        ALMA_9_SRPM=$(basename "${{ needs.AlmaLinux9-RPM-build.outputs.srpm}}")
+        UBI_8_RPM=$(basename "${{ needs.UBI-8-RPM-build.outputs.rpm}}")
+        UBI_8_SRPM=$(basename "${{ needs.UBI-8-RPM-build.outputs.srpm}}")
+        UBI_9_RPM=$(basename "${{ needs.UBI-9-RPM-build.outputs.rpm}}")
+        UBI_9_SRPM=$(basename "${{ needs.UBI-9-RPM-build.outputs.srpm}}")
+        U_2204_DEB=$(basename "${{ needs.Ubuntu-jammy-build.outputs.deb}}")
+        U_2404_DEB=$(basename "${{ needs.Ubuntu-noblenumbat-build.outputs.deb}}")
+        echo "ALMA_8_RPM::${ALMA_8_RPM}"
+        echo "ALMA_8_SRPM::${ALMA_8_SRPM}"
+        echo "ALMA_9_RPM::${ALMA_9_RPM}"
+        echo "ALMA_9_SRPM::${ALMA_9_SRPM}"
+        echo "UBI_8_RPM::${UBI_8_RPM}"
+        echo "UBI_8_SRPM::${UBI_8_SRPM}"
+        echo "UBI_9_RPM::${UBI_9_RPM}"
+        echo "UBI_9_SRPM::${UBI_9_SRPM}"
+        echo "U_2204_DEB::${U_2204_DEB}"
+        echo "U_2404_DEB::${U_2404_DEB}"
+        echo "ALMA_8_RPM=${ALMA_8_RPM}" >> $GITHUB_OUTPUT
+        echo "ALMA_8_SRPM=${ALMA_8_SRPM}" >> $GITHUB_OUTPUT
+        echo "ALMA_9_RPM=${ALMA_9_RPM}" >> $GITHUB_OUTPUT
+        echo "ALMA_9_SRPM=${ALMA_9_SRPM}" >> $GITHUB_OUTPUT
+        echo "UBI_8_RPM=${UBI_8_RPM}" >> $GITHUB_OUTPUT
+        echo "UBI_8_SRPM=${UBI_8_SRPM}" >> $GITHUB_OUTPUT
+        echo "UBI_9_RPM=${UBI_9_RPM}" >> $GITHUB_OUTPUT
+        echo "UBI_9_SRPM=${UBI_9_SRPM}" >> $GITHUB_OUTPUT
+        echo "U_2204_DEB=${U_2204_DEB}" >> $GITHUB_OUTPUT
+        echo "U_2404_DEB=${U_2404_DEB}" >> $GITHUB_OUTPUT
+
+    # See: https://github.com/softprops/action-gh-release
+    - name: Release
+      uses: softprops/action-gh-release@v2
+      if: startsWith(github.ref, 'refs/tags/')
+      with:
+        name: cc-metric-collector-${{github.ref_name}}
+        files: |
+         ${{ steps.files.outputs.ALMA_8_RPM }}
+         ${{ steps.files.outputs.ALMA_8_SRPM }}
+         ${{ steps.files.outputs.ALMA_9_RPM }}
+         ${{ steps.files.outputs.ALMA_9_SRPM }}
+         ${{ steps.files.outputs.UBI_8_RPM }}
+         ${{ steps.files.outputs.UBI_8_SRPM }}
+         ${{ steps.files.outputs.UBI_9_RPM }}
+         ${{ steps.files.outputs.UBI_9_SRPM }}
+         ${{ steps.files.outputs.U_2204_DEB }}
+         ${{ steps.files.outputs.U_2404_DEB }}

.github/workflows/rpmbuild.yml

@@ -1,61 +0,0 @@
-name: Run RPM Build
-on: push
-
-jobs:
-  build-centos8:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-    - uses: TomTheBear/rpmbuild@master
-      id: rpm
-      name: Build RPM package on CentOS8
-      with:
-        spec_file: "./scripts/cc-metric-collector.spec"
-    - name: Save RPM as artifact
-      uses: actions/upload-artifact@v1.0.0
-      with:
-        name: cc-metric-collector RPM CentOS8
-        path: ${{ steps.rpm.outputs.rpm_dir_path }}
-    - name: Save SRPM as artifact
-      uses: actions/upload-artifact@v1.0.0
-      with:
-        name: cc-metric-collector SRPM CentOS8
-        path: ${{ steps.rpm.outputs.source_rpm_path }}
-  build-centos-latest:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-    - uses: TomTheBear/rpmbuild@centos_latest
-      id: rpm
-      name: Build RPM package on CentOS 'Latest'
-      with:
-        spec_file: "./scripts/cc-metric-collector.spec"
-    - name: Save RPM as artifact
-      uses: actions/upload-artifact@v1.0.0
-      with:
-        name: cc-metric-collector RPM CentOS 'Latest'
-        path: ${{ steps.rpm.outputs.rpm_dir_path }}
-    - name: Save SRPM as artifact
-      uses: actions/upload-artifact@v1.0.0
-      with:
-        name: cc-metric-collector SRPM CentOS 'Latest'
-        path: ${{ steps.rpm.outputs.source_rpm_path }}
-  build-alma-8_5:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v2
-    - uses: TomTheBear/rpmbuild@alma8.5
-      id: rpm
-      name: Build RPM package on AlmaLinux 8.5
-      with:
-        spec_file: "./scripts/cc-metric-collector.spec"
-    - name: Save RPM as artifact
-      uses: actions/upload-artifact@v1.0.0
-      with:
-        name: cc-metric-collector RPM AlmaLinux 8.5
-        path: ${{ steps.rpm.outputs.rpm_dir_path }}
-    - name: Save SRPM as artifact
-      uses: actions/upload-artifact@v1.0.0
-      with:
-        name: cc-metric-collector SRPM AlmaLinux 8.5
-        path: ${{ steps.rpm.outputs.source_rpm_path }}

.github/workflows/runonce.yml

@@ -1,20 +1,334 @@
+# See: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions
+
+# Workflow name
 name: Run Test
-on: push
+
+# Run on event push
+on:
+  push:
+  workflow_dispatch:
 
 jobs:
-  build:
+
+  #
+  # Job build-1-21
+  # Build on latest Ubuntu using golang version 1.21
+  #
+  build-1-21:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    # See: https://github.com/marketplace/actions/checkout
+    # Checkout git repository and submodules
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
 
     # See: https://github.com/marketplace/actions/setup-go-environment
     - name: Setup Golang
-      uses: actions/setup-go@v2.1.5
+      uses: actions/setup-go@v5
       with:
-        go-version: '^1.17.6'
+        go-version: '1.21'
 
     - name: Build MetricCollector
       run: make
 
-    - name: Run MetricCollector
+    - name: Run MetricCollector once
       run: ./cc-metric-collector --once --config .github/ci-config.json
+
+  #
+  # Job build-1-22
+  # Build on latest Ubuntu using golang version 1.22
+  #
+  build-1-22:
+    runs-on: ubuntu-latest
+    steps:
+    # See: https://github.com/marketplace/actions/checkout
+    # Checkout git repository and submodules
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+
+    # See: https://github.com/marketplace/actions/setup-go-environment
+    - name: Setup Golang
+      uses: actions/setup-go@v5
+      with:
+        go-version: '1.22'
+
+    - name: Build MetricCollector
+      run: make
+
+    - name: Run MetricCollector once
+      run: ./cc-metric-collector --once --config .github/ci-config.json
+
+  #
+  # Job build-1-23
+  # Build on latest Ubuntu using golang version 1.23
+  #
+  build-1-23:
+    runs-on: ubuntu-latest
+    steps:
+    # See: https://github.com/marketplace/actions/checkout
+    # Checkout git repository and submodules
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+
+    # See: https://github.com/marketplace/actions/setup-go-environment
+    - name: Setup Golang
+      uses: actions/setup-go@v5
+      with:
+        go-version: '1.23'
+
+    - name: Build MetricCollector
+      run: make
+
+    - name: Run MetricCollector once
+      run: ./cc-metric-collector --once --config .github/ci-config.json
+
+  #
+  # Build on AlmaLinux 8
+  #
+  AlmaLinux8-RPM-build:
+    runs-on: ubuntu-latest
+    # See: https://hub.docker.com/_/almalinux
+    container: almalinux:8
+    # The job outputs link to the outputs of the 'rpmrename' step
+    # Only job outputs can be used in child jobs
+    steps:
+
+    # Use dnf to install development packages
+    - name: Install development packages
+      run: |
+          dnf --assumeyes group install "Development Tools" "RPM Development Tools"
+          dnf --assumeyes install wget openssl-devel diffutils delve which
+
+    # Checkout git repository and submodules
+    # fetch-depth must be 0 to use git describe
+    # See: https://github.com/marketplace/actions/checkout
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        fetch-depth: 0
+
+    # See: https://github.com/marketplace/actions/setup-go-environment
+    # - name: Setup Golang
+    #   uses: actions/setup-go@v5
+    #   with:
+    #     go-version: 'stable'
+    - name: Setup Golang
+      run: |
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/go-toolset-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-bin-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-src-1.22.9-1.module_el8.10.0+3938+8c723e16.noarch.rpm
+
+    - name: RPM build MetricCollector
+      id: rpmbuild
+      run: |
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+          make RPM
+
+  #
+  # Build on AlmaLinux 9
+  #
+  AlmaLinux9-RPM-build:
+    runs-on: ubuntu-latest
+    # See: https://hub.docker.com/_/almalinux
+    container: almalinux:9
+    # The job outputs link to the outputs of the 'rpmrename' step
+    # Only job outputs can be used in child jobs
+    steps:
+
+    # Use dnf to install development packages
+    - name: Install development packages
+      run: |
+          dnf --assumeyes group install "Development Tools" "RPM Development Tools"
+          dnf --assumeyes install wget openssl-devel diffutils delve which
+
+    # Checkout git repository and submodules
+    # fetch-depth must be 0 to use git describe
+    # See: https://github.com/marketplace/actions/checkout
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        fetch-depth: 0
+
+    # See: https://github.com/marketplace/actions/setup-go-environment
+    # - name: Setup Golang
+    #   uses: actions/setup-go@v5
+    #   with:
+    #     go-version: 'stable'
+    - name: Setup Golang
+      run: |
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/go-toolset-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-bin-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-src-1.22.7-2.el9_5.noarch.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-race-1.22.7-2.el9_5.x86_64.rpm
+
+    - name: RPM build MetricCollector
+      id: rpmbuild
+      run: |
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+          make RPM
+
+
+  #
+  # Build on UBI 8 using go-toolset
+  #
+  UBI-8-RPM-build:
+    runs-on: ubuntu-latest
+    # See: https://catalog.redhat.com/software/containers/ubi8/ubi/5c359854d70cc534b3a3784e?container-tabs=gti
+    container: redhat/ubi8
+    # The job outputs link to the outputs of the 'rpmbuild' step
+    steps:
+
+    # Use dnf to install development packages
+    - name: Install development packages
+      run: dnf --assumeyes --disableplugin=subscription-manager install rpm-build go-srpm-macros rpm-build-libs rpm-libs gcc make python38 git wget openssl-devel diffutils delve which
+
+    # Checkout git repository and submodules
+    # fetch-depth must be 0 to use git describe
+    # See: https://github.com/marketplace/actions/checkout
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        fetch-depth: 0
+
+    # See: https://github.com/marketplace/actions/setup-go-environment
+    # - name: Setup Golang
+    #   uses: actions/setup-go@v5
+    #   with:
+    #     go-version: 'stable'
+    - name: Setup Golang
+      run: |
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/go-toolset-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-bin-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-src-1.22.9-1.module_el8.10.0+3938+8c723e16.noarch.rpm
+
+    - name: RPM build MetricCollector
+      id: rpmbuild
+      run: |
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+          make RPM
+
+  #
+  # Build on UBI 9 using go-toolset
+  #
+  UBI-9-RPM-build:
+    runs-on: ubuntu-latest
+    # See: https://catalog.redhat.com/software/containers/ubi8/ubi/5c359854d70cc534b3a3784e?container-tabs=gti
+    container: redhat/ubi9
+    # The job outputs link to the outputs of the 'rpmbuild' step
+    steps:
+
+    # Use dnf to install development packages
+    - name: Install development packages
+      run: dnf --assumeyes --disableplugin=subscription-manager install rpm-build go-srpm-macros gcc make python39 git wget openssl-devel diffutils delve
+
+    # Checkout git repository and submodules
+    # fetch-depth must be 0 to use git describe
+    # See: https://github.com/marketplace/actions/checkout
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        fetch-depth: 0
+
+    # See: https://github.com/marketplace/actions/setup-go-environment
+    # - name: Setup Golang
+    #   uses: actions/setup-go@v5
+    #   with:
+    #     go-version: 'stable'
+    - name: Setup Golang
+      run: |
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/go-toolset-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-bin-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-src-1.22.7-2.el9_5.noarch.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-race-1.22.7-2.el9_5.x86_64.rpm
+
+    - name: RPM build MetricCollector
+      id: rpmbuild
+      run: |
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+          make RPM
+
+  #
+  # Build on Ubuntu 22.04 using official go package
+  #
+  Ubuntu-jammy-build:
+    runs-on: ubuntu-latest
+    container: ubuntu:22.04
+
+    steps:
+    # Use apt to install development packages
+    - name: Install development packages
+      run: |
+          apt update && apt --assume-yes upgrade
+          apt --assume-yes install build-essential sed git wget bash
+    # Checkout git repository and submodules
+    # fetch-depth must be 0 to use git describe
+    # See: https://github.com/marketplace/actions/checkout
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        fetch-depth: 0
+    # Use official golang package
+    # See: https://github.com/marketplace/actions/setup-go-environment
+    - name: Setup Golang
+      uses: actions/setup-go@v5
+      with:
+        go-version: 'stable'
+
+    - name: DEB build MetricCollector
+      id: dpkg-build
+      run: |
+          export PATH=/usr/local/go/bin:/usr/local/go/pkg/tool/linux_amd64:$PATH
+          make DEB
+
+  #
+  # Build on Ubuntu 24.04 using official go package
+  #
+  Ubuntu-noblenumbat-build:
+    runs-on: ubuntu-latest
+    container: ubuntu:24.04
+
+    steps:
+    # Use apt to install development packages
+    - name: Install development packages
+      run: |
+          apt update && apt --assume-yes upgrade
+          apt --assume-yes install build-essential sed git wget bash
+    # Checkout git repository and submodules
+    # fetch-depth must be 0 to use git describe
+    # See: https://github.com/marketplace/actions/checkout
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        submodules: recursive
+        fetch-depth: 0
+    # Use official golang package
+    # See: https://github.com/marketplace/actions/setup-go-environment
+    - name: Setup Golang
+      uses: actions/setup-go@v5
+      with:
+        go-version: 'stable'
+
+    - name: DEB build MetricCollector
+      id: dpkg-build
+      run: |
+          export PATH=/usr/local/go/bin:/usr/local/go/pkg/tool/linux_amd64:$PATH
+          make DEB

.gitmodules

@@ -0,0 +1,4 @@
+[submodule ".github/actions/rpmbuild-centos8-golang"]
+	path = .github/actions/rpmbuild-centos8-golang
+	url = https://github.com/naveenrajm7/rpmbuild.git
+	branch = centos8

.zenodo.json

@@ -0,0 +1,29 @@
+{
+  "title": "cc-metric-collector",
+  "description": "Monitoring agent for ClusterCockpit.",
+  "creators": [
+    {
+      "affiliation": "Regionales Rechenzentrum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg",
+      "name": "Thomas Gruber",
+      "orcid": "0000-0001-5560-6964"
+    },
+    {
+      "affiliation": "Steinbuch Centre for Computing, Karlsruher Institut für Technologie",
+      "name": "Holger Obermaier",
+      "orcid": "0000-0002-6830-6626"
+    }
+  ],
+  "upload_type": "software",
+  "license": "MIT",
+  "access_right": "open",
+  "keywords": [
+    "performance-monitoring",
+    "cluster-monitoring",
+    "open-source"
+  ],
+  "communities": [
+    {
+      "identifier": "clustercockpit"
+    }
+  ]
+}

Makefile

@@ -1,43 +1,129 @@
 APP = cc-metric-collector
-GOSRC_APP        := metric-collector.go
+GOSRC_APP        := cc-metric-collector.go
 GOSRC_COLLECTORS := $(wildcard collectors/*.go)
 GOSRC_SINKS      := $(wildcard sinks/*.go)
 GOSRC_RECEIVERS  := $(wildcard receivers/*.go)
 GOSRC_INTERNAL   := $(wildcard internal/*/*.go)
 GOSRC            := $(GOSRC_APP) $(GOSRC_COLLECTORS) $(GOSRC_SINKS) $(GOSRC_RECEIVERS) $(GOSRC_INTERNAL)
+COMPONENT_DIRS   := collectors \
+			sinks \
+			receivers \
+			internal/metricRouter \
+			internal/ccMetric \
+			internal/metricAggregator \
+			internal/ccLogger \
+			internal/ccTopology \
+			internal/multiChanTicker
+
+BINDIR = bin
+GOBIN = $(shell which go)
 
 
 .PHONY: all
 all: $(APP)
 
-$(APP): $(GOSRC)
+$(APP): $(GOSRC) go.mod
 	make -C collectors
-	go get
-	go build -o $(APP) $(GOSRC_APP)
+	$(GOBIN) get
+	$(GOBIN) build -o $(APP) $(GOSRC_APP)
+
+install: $(APP)
+	@WORKSPACE=$(PREFIX)
+	@if [ -z "$${WORKSPACE}" ]; then exit 1; fi
+	@mkdir --parents --verbose $${WORKSPACE}/usr/$(BINDIR)
+	@install -Dpm 755 $(APP) $${WORKSPACE}/usr/$(BINDIR)/$(APP)
+	@mkdir --parents --verbose $${WORKSPACE}/etc/cc-metric-collector $${WORKSPACE}/etc/default $${WORKSPACE}/etc/systemd/system $${WORKSPACE}/etc/init.d
+	@install -Dpm 600 config.json $${WORKSPACE}/etc/cc-metric-collector/cc-metric-collector.json
+	@sed -i -e s+"\"./"+"\"/etc/cc-metric-collector/"+g $${WORKSPACE}/etc/cc-metric-collector/cc-metric-collector.json
+	@install -Dpm 600 sinks.json $${WORKSPACE}/etc/cc-metric-collector/sinks.json
+	@install -Dpm 600 collectors.json $${WORKSPACE}/etc/cc-metric-collector/collectors.json
+	@install -Dpm 600 router.json $${WORKSPACE}/etc/cc-metric-collector/router.json
+	@install -Dpm 600 receivers.json $${WORKSPACE}/etc/cc-metric-collector/receivers.json
+	@install -Dpm 600 scripts/cc-metric-collector.config $${WORKSPACE}/etc/default/cc-metric-collector
+	@install -Dpm 644 scripts/cc-metric-collector.service $${WORKSPACE}/etc/systemd/system/cc-metric-collector.service
+	@install -Dpm 644 scripts/cc-metric-collector.init $${WORKSPACE}/etc/init.d/cc-metric-collector
+
 
 .PHONY: clean
+.ONESHELL:
 clean:
-	make -C collectors clean
+	@for COMP in $(COMPONENT_DIRS); do if [ -e $$COMP/Makefile ]; then make -C $$COMP clean;  fi; done
 	rm -f $(APP)
 
 .PHONY: fmt
 fmt:
-	go fmt $(GOSRC_COLLECTORS)
-	go fmt $(GOSRC_SINKS)
-	go fmt $(GOSRC_RECEIVERS)
-	go fmt $(GOSRC_APP)
-	@for F in $(GOSRC_INTERNAL); do go fmt $$F; done
+	$(GOBIN) fmt $(GOSRC_COLLECTORS)
+	$(GOBIN) fmt $(GOSRC_SINKS)
+	$(GOBIN) fmt $(GOSRC_RECEIVERS)
+	$(GOBIN) fmt $(GOSRC_APP)
+	@for F in $(GOSRC_INTERNAL); do $(GOBIN) fmt $$F; done
 
 
 # Examine Go source code and reports suspicious constructs
 .PHONY: vet
 vet:
-	go vet ./...
+	$(GOBIN) vet ./...
 
 
 # Run linter for the Go programming language.
 # Using static analysis, it finds bugs and performance issues, offers simplifications, and enforces style rules
 .PHONY: staticcheck
 staticcheck:
-	go install honnef.co/go/tools/cmd/staticcheck@latest
-	$$(go env GOPATH)/bin/staticcheck ./...
+	$(GOBIN) install honnef.co/go/tools/cmd/staticcheck@latest
+	$$($(GOBIN) env GOPATH)/bin/staticcheck ./...
+
+.ONESHELL:
+.PHONY: RPM
+RPM: scripts/cc-metric-collector.spec
+	@WORKSPACE="$${PWD}"
+	@SPECFILE="$${WORKSPACE}/scripts/cc-metric-collector.spec"
+	# Setup RPM build tree
+	@eval $$(rpm --eval "ARCH='%{_arch}' RPMDIR='%{_rpmdir}' SOURCEDIR='%{_sourcedir}' SPECDIR='%{_specdir}' SRPMDIR='%{_srcrpmdir}' BUILDDIR='%{_builddir}'")
+	@mkdir --parents --verbose "$${RPMDIR}" "$${SOURCEDIR}" "$${SPECDIR}" "$${SRPMDIR}" "$${BUILDDIR}"
+	# Create source tarball
+	@COMMITISH="HEAD"
+	@VERS=$$(git describe --tags $${COMMITISH})
+	@VERS=$${VERS#v}
+	@VERS=$$(echo $${VERS} | sed -e s+'-'+'_'+g)
+	@eval $$(rpmspec --query --queryformat "NAME='%{name}' VERSION='%{version}' RELEASE='%{release}' NVR='%{NVR}' NVRA='%{NVRA}'" --define="VERS $${VERS}" "$${SPECFILE}")
+	@PREFIX="$${NAME}-$${VERSION}"
+	@FORMAT="tar.gz"
+	@SRCFILE="$${SOURCEDIR}/$${PREFIX}.$${FORMAT}"
+	@git archive --verbose --format "$${FORMAT}" --prefix="$${PREFIX}/" --output="$${SRCFILE}" $${COMMITISH}
+	# Build RPM and SRPM
+	@rpmbuild -ba --define="VERS $${VERS}" --rmsource --clean "$${SPECFILE}"
+	# Report RPMs and SRPMs when in GitHub Workflow
+	@if [[ "$${GITHUB_ACTIONS}" == true ]]; then
+	@     RPMFILE="$${RPMDIR}/$${ARCH}/$${NVRA}.rpm"
+	@     SRPMFILE="$${SRPMDIR}/$${NVR}.src.rpm"
+	@     echo "SRPM=$${SRPMFILE}" >> $${GITHUB_OUTPUT}
+	@     echo "RPM=$${RPMFILE}" >> $${GITHUB_OUTPUT}
+	@fi
+
+.PHONY: DEB
+DEB: scripts/cc-metric-collector.deb.control $(APP)
+	@BASEDIR=$${PWD}
+	@WORKSPACE=$${PWD}/.dpkgbuild
+	@DEBIANDIR=$${WORKSPACE}/debian
+	@DEBIANBINDIR=$${WORKSPACE}/DEBIAN
+	@mkdir --parents --verbose $${WORKSPACE} $${DEBIANBINDIR}
+	#@mkdir --parents --verbose $$DEBIANDIR
+	@CONTROLFILE="$${BASEDIR}/scripts/cc-metric-collector.deb.control"
+	@COMMITISH="HEAD"
+	@VERS=$$(git describe --tags --abbrev=0 $${COMMITISH})
+	@if [ -z "$${VERS}" ]; then VERS=${GITHUB_REF_NAME}; fi
+	@VERS=$${VERS#v}
+	@ARCH=$$(uname -m)
+	@ARCH=$$(echo $${ARCH} | sed -e s+'_'+'-'+g)
+	@if [ "$${ARCH}" = "x86-64" ]; then ARCH=amd64; fi
+	@PREFIX="$${NAME}-$${VERSION}_$${ARCH}"
+	@SIZE_BYTES=$$(du -bcs --exclude=.dpkgbuild "$${WORKSPACE}"/ | awk '{print $$1}' | head -1 | sed -e 's/^0\+//')
+	@SIZE="$$(awk -v size="$${SIZE_BYTES}" 'BEGIN {print (size/1024)+1}' | awk '{print int($$0)}')"
+	@sed -e s+"{VERSION}"+"$${VERS}"+g -e s+"{INSTALLED_SIZE}"+"$${SIZE}"+g -e s+"{ARCH}"+"$${ARCH}"+g $${CONTROLFILE} > $${DEBIANBINDIR}/control
+	@make PREFIX=$${WORKSPACE} install
+	@DEB_FILE="cc-metric-collector_$${VERS}_$${ARCH}.deb"
+	@dpkg-deb -b $${WORKSPACE} "$${DEB_FILE}"
+	@if [ "$${GITHUB_ACTIONS}" = "true" ]; then
+	@     echo "DEB=$${DEB_FILE}" >> $${GITHUB_OUTPUT}
+	@fi
+	@rm -r "$${WORKSPACE}"

README.md

@@ -1,5 +1,6 @@
 # cc-metric-collector
-A node agent for measuring, processing and forwarding node level metrics. It is part of the ClusterCockpit ecosystem.
+
+A node agent for measuring, processing and forwarding node level metrics. It is part of the [ClusterCockpit ecosystem](./docs/introduction.md).
 
 The metric collector sends (and receives) metric in the [InfluxDB line protocol](https://docs.influxdata.com/influxdb/cloud/reference/syntax/line-protocol/) as it provides flexibility while providing a separation between tags (like index columns in relational databases) and fields (like data columns).
 
@@ -7,10 +8,14 @@ There is a single timer loop that triggers all collectors serially, collects the
 
 The receiver runs as a go routine side-by-side with the timer loop and asynchronously forwards received metrics to the sink.
 
+
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.7438287.svg)](https://doi.org/10.5281/zenodo.7438287)
+
+
 # Configuration
 
 Configuration is implemented using a single json document that is distributed over network and may be persisted as file.
-Supported metrics are documented [here](https://github.com/ClusterCockpit/cc-specifications/blob/master/metrics/lineprotocol_alternative.md).
+Supported metrics are documented [here](https://github.com/ClusterCockpit/cc-specifications/blob/master/interfaces/lineprotocol/README.md).
 
 There is a main configuration file with basic settings that point to the other configuration files for the different components.
 
@@ -20,33 +25,35 @@ There is a main configuration file with basic settings that point to the other c
   "collectors" : "collectors.json",
   "receivers" : "receivers.json",
   "router" : "router.json",
-  "interval": 10,
-  "duration": 1
+  "interval": "10s",
+  "duration": "1s"
 }
 ```
 
-The `interval` defines how often the metrics should be read and send to the sink. The `duration` tells collectors how long one measurement has to take. This is important for some collectors, like the `likwid` collector.
+The `interval` defines how often the metrics should be read and send to the sink. The `duration` tells collectors how long one measurement has to take. This is important for some collectors, like the `likwid` collector. For more information, see [here](./docs/configuration.md).
 
 See the component READMEs for their configuration:
+
 * [`collectors`](./collectors/README.md)
 * [`sinks`](./sinks/README.md)
 * [`receivers`](./receivers/README.md)
 * [`router`](./internal/metricRouter/README.md)
 
-
 # Installation
 
 ```
 $ git clone git@github.com:ClusterCockpit/cc-metric-collector.git
 $ make (downloads LIKWID, builds it as static library with 'direct' accessmode and copies all required files for the collector)
-$ go get (requires at least golang 1.13)
-$ go build metric-collector
+$ go get (requires at least golang 1.16)
+$ make
 ```
 
+For more information, see [here](./docs/building.md).
+
 # Running
 
 ```
-$ ./metric-collector --help
+$ ./cc-metric-collector --help
 Usage of metric-collector:
   -config string
     	Path to configuration file (default "./config.json")
@@ -54,12 +61,46 @@ Usage of metric-collector:
     	Path for logfile (default "stderr")
   -once
     	Run all collectors only once
-  -pidfile string
-    	Path for PID file (default "/var/run/cc-metric-collector.pid")
 ```
 
+# Scenarios
+
+The metric collector was designed with flexibility in mind, so it can be used in many scenarios. Here are a few:
+
+```mermaid
+flowchart TD
+  subgraph a ["Cluster A"]
+  nodeA[NodeA with CC collector]
+  nodeB[NodeB with CC collector]
+  nodeC[NodeC with CC collector]
+  end
+  a --> db[(Database)]
+  db <--> ccweb("Webfrontend")
+```
+
+``` mermaid
+flowchart TD
+  subgraph a [ClusterA]
+  direction LR
+  nodeA[NodeA with CC collector]
+  nodeB[NodeB with CC collector]
+  nodeC[NodeC with CC collector]
+  end
+  subgraph b [ClusterB]
+  direction LR
+  nodeD[NodeD with CC collector]
+  nodeE[NodeE with CC collector]
+  nodeF[NodeF with CC collector]
+  end
+  a --> ccrecv{"CC collector as receiver"}
+  b --> ccrecv
+  ccrecv --> db[("Database1")]
+  ccrecv -.-> db2[("Database2")]
+  db <-.-> ccweb("Webfrontend")
+```
 
 # Contributing
+
 The ClusterCockpit ecosystem is designed to be used by different HPC computing centers. Since configurations and setups differ between the centers, the centers likely have to put some work into the cc-metric-collector to gather all desired metrics.
 
 You are free to open an issue to request a collector but we would also be happy about PRs.

cc-metric-collector.go

@@ -15,16 +15,15 @@ import (
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-metric-collector/internal/ccLogger"
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
 	mr "github.com/ClusterCockpit/cc-metric-collector/internal/metricRouter"
-	mct "github.com/ClusterCockpit/cc-metric-collector/internal/multiChanTicker"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	mct "github.com/ClusterCockpit/cc-metric-collector/pkg/multiChanTicker"
 )
 
 type CentralConfigFile struct {
-	Interval            int    `json:"interval"`
-	Duration            int    `json:"duration"`
-	Pidfile             string `json:"pidfile,omitempty"`
+	Interval            string `json:"interval"`
+	Duration            string `json:"duration"`
 	CollectorConfigFile string `json:"collectors"`
 	RouterConfigFile    string `json:"router"`
 	SinkConfigFile      string `json:"sinks"`
@@ -55,7 +54,7 @@ type RuntimeConfig struct {
 	ReceiveManager  receivers.ReceiveManager
 	MultiChanTicker mct.MultiChanTicker
 
-	Channels []chan lp.CCMetric
+	Channels []chan lp.CCMessage
 	Sync     sync.WaitGroup
 }
 
@@ -87,14 +86,12 @@ func ReadCli() map[string]string {
 	var m map[string]string
 	cfg := flag.String("config", "./config.json", "Path to configuration file")
 	logfile := flag.String("log", "stderr", "Path for logfile")
-	pidfile := flag.String("pidfile", "/var/run/cc-metric-collector.pid", "Path for PID file")
 	once := flag.Bool("once", false, "Run all collectors only once")
 	debug := flag.Bool("debug", false, "Activate debug output")
 	flag.Parse()
 	m = make(map[string]string)
 	m["configfile"] = *cfg
 	m["logfile"] = *logfile
-	m["pidfile"] = *pidfile
 	if *once {
 		m["once"] = "true"
 	} else {
@@ -125,25 +122,6 @@ func ReadCli() map[string]string {
 //	return nil
 //}
 
-//func CreatePidfile(pidfile string) error {
-//	file, err := os.OpenFile(pidfile, os.O_CREATE|os.O_RDWR, 0600)
-//	if err != nil {
-//		log.Print(err)
-//		return err
-//	}
-//	file.Write([]byte(fmt.Sprintf("%d", os.Getpid())))
-//	file.Close()
-//	return nil
-//}
-
-//func RemovePidfile(pidfile string) error {
-//	info, err := os.Stat(pidfile)
-//	if !os.IsNotExist(err) && !info.IsDir() {
-//		os.Remove(pidfile)
-//	}
-//	return nil
-//}
-
 // General shutdownHandler function that gets executed in case of interrupt or graceful shutdownHandler
 func shutdownHandler(config *RuntimeConfig, shutdownSignal chan os.Signal) {
 	defer config.Sync.Done()
@@ -174,11 +152,6 @@ func shutdownHandler(config *RuntimeConfig, shutdownSignal chan os.Signal) {
 		cclog.Debug("Shutdown SinkManager...")
 		config.SinkManager.Close()
 	}
-
-	//	pidfile := config.ConfigFile.Pidfile
-	//	RemovePidfile(pidfile)
-	//	pidfile = config.CliArgs["pidfile"]
-	//	RemovePidfile(pidfile)
 }
 
 func mainFunc() int {
@@ -200,16 +173,36 @@ func mainFunc() int {
 		cclog.Error("Error reading configuration file ", rcfg.CliArgs["configfile"], ": ", err.Error())
 		return 1
 	}
-	if rcfg.ConfigFile.Interval <= 0 || time.Duration(rcfg.ConfigFile.Interval)*time.Second <= 0 {
+
+	// Properly use duration parser with inputs like '60s', '5m' or similar
+	if len(rcfg.ConfigFile.Interval) > 0 {
+		t, err := time.ParseDuration(rcfg.ConfigFile.Interval)
+		if err != nil {
+			cclog.Error("Configuration value 'interval' no valid duration")
+		}
+		rcfg.Interval = t
+		if rcfg.Interval == 0 {
 			cclog.Error("Configuration value 'interval' must be greater than zero")
 			return 1
 		}
-	rcfg.Interval = time.Duration(rcfg.ConfigFile.Interval) * time.Second
-	if rcfg.ConfigFile.Duration <= 0 || time.Duration(rcfg.ConfigFile.Duration)*time.Second <= 0 {
+	}
+
+	// Properly use duration parser with inputs like '60s', '5m' or similar
+	if len(rcfg.ConfigFile.Duration) > 0 {
+		t, err := time.ParseDuration(rcfg.ConfigFile.Duration)
+		if err != nil {
+			cclog.Error("Configuration value 'duration' no valid duration")
+		}
+		rcfg.Duration = t
+		if rcfg.Duration == 0 {
 			cclog.Error("Configuration value 'duration' must be greater than zero")
 			return 1
 		}
-	rcfg.Duration = time.Duration(rcfg.ConfigFile.Duration) * time.Second
+	}
+	if rcfg.Duration > rcfg.Interval {
+		cclog.Error("The interval should be greater than duration")
+		return 1
+	}
 
 	if len(rcfg.ConfigFile.RouterConfigFile) == 0 {
 		cclog.Error("Metric router configuration file must be set")
@@ -226,8 +219,6 @@ func mainFunc() int {
 		return 1
 	}
 
-	//	err = CreatePidfile(rcfg.CliArgs["pidfile"])
-
 	// Set log file
 	if logfile := rcfg.CliArgs["logfile"]; logfile != "stderr" {
 		cclog.SetOutput(logfile)
@@ -251,7 +242,7 @@ func mainFunc() int {
 	}
 
 	// Connect metric router to sink manager
-	RouterToSinksChannel := make(chan lp.CCMetric, 200)
+	RouterToSinksChannel := make(chan lp.CCMessage, 200)
 	rcfg.SinkManager.AddInput(RouterToSinksChannel)
 	rcfg.MetricRouter.AddOutput(RouterToSinksChannel)
 
@@ -263,7 +254,7 @@ func mainFunc() int {
 	}
 
 	// Connect collector manager to metric router
-	CollectToRouterChannel := make(chan lp.CCMetric, 200)
+	CollectToRouterChannel := make(chan lp.CCMessage, 200)
 	rcfg.CollectManager.AddOutput(CollectToRouterChannel)
 	rcfg.MetricRouter.AddCollectorInput(CollectToRouterChannel)
 
@@ -276,7 +267,7 @@ func mainFunc() int {
 		}
 
 		// Connect receive manager to metric router
-		ReceiveToRouterChannel := make(chan lp.CCMetric, 200)
+		ReceiveToRouterChannel := make(chan lp.CCMessage, 200)
 		rcfg.ReceiveManager.AddOutput(ReceiveToRouterChannel)
 		rcfg.MetricRouter.AddReceiverInput(ReceiveToRouterChannel)
 		use_recv = true
@@ -300,7 +291,7 @@ func mainFunc() int {
 
 	// Wait until one tick has passed. This is a workaround
 	if rcfg.CliArgs["once"] == "true" {
-		x := 1.2 * float64(rcfg.ConfigFile.Interval)
+		x := 1.2 * float64(rcfg.Interval.Seconds())
 		time.Sleep(time.Duration(int(x)) * time.Second)
 		shutdownSignal <- os.Interrupt
 	}

collectors.json

@@ -1,15 +1,41 @@
 {
-    "tempstat": {
-      "tag_override": {
-        "hwmon0" : {
-            "type" : "socket",
-            "type-id" : "0"
+    "cpufreq": {},
+    "cpufreq_cpuinfo": {},
+    "gpfs": {
+        "exclude_filesystem": [
+            "test_fs"
+        ]
     },
-        "hwmon1" : {
-            "type" : "socket",
-            "type-id" : "1"
+    "ibstat": {},
+    "loadavg": {
+        "exclude_metrics": [
+            "proc_total"
+        ]
+    },
+    "memstat": {},
+    "netstat": {
+        "include_devices": [
+            "enp5s0"
+        ],
+        "send_derived_values": true
+    },
+    "numastats": {},
+    "nvidia": {},
+    "tempstat": {
+        "report_max_temperature": true,
+        "report_critical_temperature": true,
+        "tag_override": {
+            "hwmon0": {
+                "type": "socket",
+                "type-id": "0"
+            },
+            "hwmon1": {
+                "type": "socket",
+                "type-id": "1"
             }
         }
+    },
+    "topprocs": {
+        "num_procs": 5
     }
-    
 }

collectors/Makefile

@@ -1,82 +1,33 @@
-# Use central installation
-CENTRAL_INSTALL = false
-# How to access hardware performance counters through LIKWID.
-# Recommended is 'direct' mode
-ACCESSMODE = direct
+# LIKWID version
+LIKWID_VERSION := 5.4.1
+LIKWID_INSTALLED_FOLDER := $(shell dirname $$(which likwid-topology 2>/dev/null) 2>/dev/null)
 
-#######################################################################
-# if CENTRAL_INSTALL == true
-#######################################################################
-# Path to central installation (if CENTRAL_INSTALL=true)
-LIKWID_BASE=/apps/likwid/5.2.1
-# LIKWID version (should be same major version as central installation, 5.2.x)
-LIKWID_VERSION = 5.2.1
+LIKWID_FOLDER := $(CURDIR)/likwid
 
-#######################################################################
-# if CENTRAL_INSTALL == false and ACCESSMODE == accessdaemon
-#######################################################################
-# Where to install the accessdaemon
-DAEMON_INSTALLDIR = /usr/local
-# Which user to use for the accessdaemon
-DAEMON_USER = root
-# Which group to use for the accessdaemon
-DAEMON_GROUP = root
+all: likwid
 
+.ONESHELL:
+.PHONY: likwid
+likwid:
+	if [ -n "$(LIKWID_INSTALLED_FOLDER)" ]; then
+	    # Using likwid include files from system installation
+	    INCLUDE_DIR="$(LIKWID_INSTALLED_FOLDER)/../include"
+	    mkdir --parents --verbose "$(LIKWID_FOLDER)"
+	    cp "$${INCLUDE_DIR}"/*.h "$(LIKWID_FOLDER)"
+	else
+	    # Using likwid include files from downloaded tar archive
+	    if [ -d "$(LIKWID_FOLDER)" ]; then
+	        rm --recursive "$(LIKWID_FOLDER)"
+	    fi
+	    BUILD_FOLDER="$${PWD}/likwidbuild"
+	    mkdir --parents --verbose  "$${BUILD_FOLDER}"
+	    wget --output-document=- http://ftp.rrze.uni-erlangen.de/mirrors/likwid/likwid-$(LIKWID_VERSION).tar.gz |
+	        tar --directory="$${BUILD_FOLDER}" --extract --gz
+		install -D --verbose --preserve-timestamps --mode=0644 --target-directory="$(LIKWID_FOLDER)" "$${BUILD_FOLDER}/likwid-$(LIKWID_VERSION)/src/includes"/likwid*.h
+	    rm --recursive "$${BUILD_FOLDER}"
+	fi
 
 
-#################################################
-# No need to change anything below this line
-#################################################
-INSTALL_FOLDER = ./likwid
-BUILD_FOLDER = ./likwid/build
-
-ifneq ($(strip $(CENTRAL_INSTALL)),true)
-LIKWID_BASE := $(shell pwd)/$(INSTALL_FOLDER)
-DAEMON_BASE := $(LIKWID_BASE)
-GROUPS_BASE := $(LIKWID_BASE)/groups
-all: $(INSTALL_FOLDER)/liblikwid.a cleanup
-else
-DAEMON_BASE= $(LIKWID_BASE)/sbin
-all: $(INSTALL_FOLDER)/liblikwid.a cleanup
-endif
-
-
-
-$(BUILD_FOLDER)/likwid-$(LIKWID_VERSION).tar.gz: $(BUILD_FOLDER)
-	wget -P $(BUILD_FOLDER) ftp://ftp.rrze.uni-erlangen.de/mirrors/likwid/likwid-$(LIKWID_VERSION).tar.gz
-
-$(BUILD_FOLDER):
-	mkdir -p $(BUILD_FOLDER)
-
-$(INSTALL_FOLDER):
-	mkdir -p $(INSTALL_FOLDER)
-
-$(BUILD_FOLDER)/likwid-$(LIKWID_VERSION): $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION).tar.gz
-	tar -C $(BUILD_FOLDER) -xf $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION).tar.gz
-
-$(INSTALL_FOLDER)/liblikwid.a: $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION) $(INSTALL_FOLDER)
-	sed -i -e s+"PREFIX ?= .*"+"PREFIX = $(LIKWID_BASE)"+g \
-		-e s+"SHARED_LIBRARY = .*"+"SHARED_LIBRARY = false"+g \
-		-e s+"ACCESSMODE = .*"+"ACCESSMODE = $(ACCESSMODE)"+g \
-		-e s+"INSTALLED_ACCESSDAEMON = .*"+"INSTALLED_ACCESSDAEMON = $(DAEMON_INSTALLDIR)/likwid-accessD"+g \
-		$(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/config.mk
-	cd $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION) && make
-	cp $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/liblikwid.a $(INSTALL_FOLDER)
-	cp $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/ext/hwloc/liblikwid-hwloc.a $(INSTALL_FOLDER)
-	cp $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/src/includes/likwid*.h $(INSTALL_FOLDER)
-	cp $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/src/includes/bstrlib.h $(INSTALL_FOLDER)
-
-$(DAEMON_INSTALLDIR)/likwid-accessD: $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/likwid-accessD
-	sudo -u $(DAEMON_USER) -g $(DAEMON_GROUP) install -m 4775 $(BUILD_FOLDER)/likwid-$(LIKWID_VERSION)/likwid-accessD $(DAEMON_INSTALLDIR)/likwid-accessD
-
-prepare_collector: likwidMetric.go
-	cp likwidMetric.go likwidMetric.go.orig
-	sed -i -e s+"const GROUPPATH =.*"+"const GROUPPATH = \`$(GROUPS_BASE)\`"+g likwidMetric.go
-
-cleanup:
-	rm -rf $(BUILD_FOLDER)
-
-clean: cleanup
-	rm -rf likwid
-
 .PHONY: clean
+clean:
+	rm -rf likwid

collectors/README.md

@@ -18,21 +18,31 @@ In contrast to the configuration files for sinks and receivers, the collectors c
 
 * [`cpustat`](./cpustatMetric.md)
 * [`memstat`](./memstatMetric.md)
+* [`iostat`](./iostatMetric.md)
 * [`diskstat`](./diskstatMetric.md)
 * [`loadavg`](./loadavgMetric.md)
 * [`netstat`](./netstatMetric.md)
 * [`ibstat`](./infinibandMetric.md)
+* [`ibstat_perfquery`](./infinibandPerfQueryMetric.md)
 * [`tempstat`](./tempMetric.md)
-* [`lustre`](./lustreMetric.md)
+* [`lustrestat`](./lustreMetric.md)
 * [`likwid`](./likwidMetric.md)
 * [`nvidia`](./nvidiaMetric.md)
 * [`customcmd`](./customCmdMetric.md)
 * [`ipmistat`](./ipmiMetric.md)
 * [`topprocs`](./topprocsMetric.md)
+* [`nfs3stat`](./nfs3Metric.md)
+* [`nfs4stat`](./nfs4Metric.md)
+* [`cpufreq`](./cpufreqMetric.md)
+* [`cpufreq_cpuinfo`](./cpufreqCpuinfoMetric.md)
+* [`numastats`](./numastatsMetric.md)
+* [`gpfs`](./gpfsMetric.md)
+* [`beegfs_meta`](./beegfsmetaMetric.md)
+* [`beegfs_storage`](./beegfsstorageMetric.md)
+* [`rocm_smi`](./rocmsmiMetric.md)
 
 ## Todos
 
-* [ ] Exclude devices for `diskstat` collector
 * [ ] Aggreate metrics to higher topology entity (sum hwthread metrics to socket metric, ...). Needs to be configurable
 
 # Contributing own collectors
@@ -71,6 +81,11 @@ type SampleCollector struct {
 }
 
 func (m *SampleCollector) Init(config json.RawMessage) error {
+    // Check if already initialized
+    if m.init {
+        return nil
+    }
+
     m.name = "SampleCollector"
     m.setup()
     if len(config) > 0 {
@@ -91,10 +106,15 @@ func (m *SampleCollector) Read(interval time.Duration, output chan lp.CCMetric)
     }
     // tags for the metric, if type != node use proper type and type-id
     tags := map[string]string{"type" : "node"}
+
+    x, err := GetMetric()
+    if err != nil {
+        cclog.ComponentError(m.name, fmt.Sprintf("Read(): %v", err))
+    }
+
     // Each metric has exactly one field: value !
-    value := map[string]interface{}{"value": int(x)}
-    y, err := lp.New("sample_metric", tags, m.meta, value, time.Now())
-    if err == nil {
+    value := map[string]interface{}{"value": int64(x)}
+    if y, err := lp.New("sample_metric", tags, m.meta, value, time.Now()); err == nil {
         output <- y
     }
 }

collectors/beegfsmetaMetric.go

@@ -0,0 +1,230 @@
+package collectors
+
+import (
+	"bufio"
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"os"
+	"os/exec"
+	"os/user"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+)
+
+const DEFAULT_BEEGFS_CMD = "beegfs-ctl"
+
+// Struct for the collector-specific JSON config
+type BeegfsMetaCollectorConfig struct {
+	Beegfs            string   `json:"beegfs_path"`
+	ExcludeMetrics    []string `json:"exclude_metrics,omitempty"`
+	ExcludeFilesystem []string `json:"exclude_filesystem"`
+}
+
+type BeegfsMetaCollector struct {
+	metricCollector
+	tags    map[string]string
+	matches map[string]string
+	config  BeegfsMetaCollectorConfig
+	skipFS  map[string]struct{}
+}
+
+func (m *BeegfsMetaCollector) Init(config json.RawMessage) error {
+	// Check if already initialized
+	if m.init {
+		return nil
+	}
+	// Metrics
+	var nodeMdstat_array = [39]string{
+		"sum", "ack", "close", "entInf",
+		"fndOwn", "mkdir", "create", "rddir",
+		"refrEn", "mdsInf", "rmdir", "rmLnk",
+		"mvDirIns", "mvFiIns", "open", "ren",
+		"sChDrct", "sAttr", "sDirPat", "stat",
+		"statfs", "trunc", "symlnk", "unlnk",
+		"lookLI", "statLI", "revalLI", "openLI",
+		"createLI", "hardlnk", "flckAp", "flckEn",
+		"flckRg", "dirparent", "listXA", "getXA",
+		"rmXA", "setXA", "mirror"}
+
+	m.name = "BeegfsMetaCollector"
+	m.setup()
+	m.parallel = true
+	// Set default beegfs-ctl binary
+
+	m.config.Beegfs = DEFAULT_BEEGFS_CMD
+
+	// Read JSON configuration
+	if len(config) > 0 {
+		err := json.Unmarshal(config, &m.config)
+		if err != nil {
+			return err
+		}
+	}
+
+	//create map with possible variables
+	m.matches = make(map[string]string)
+	for _, value := range nodeMdstat_array {
+		_, skip := stringArrayContains(m.config.ExcludeMetrics, value)
+		if skip {
+			m.matches["other"] = "0"
+		} else {
+			m.matches["beegfs_cmeta_"+value] = "0"
+		}
+	}
+
+	m.meta = map[string]string{
+		"source": m.name,
+		"group":  "BeegfsMeta",
+	}
+	m.tags = map[string]string{
+		"type":       "node",
+		"filesystem": "",
+	}
+	m.skipFS = make(map[string]struct{})
+	for _, fs := range m.config.ExcludeFilesystem {
+		m.skipFS[fs] = struct{}{}
+	}
+
+	// Beegfs file system statistics can only be queried by user root
+	user, err := user.Current()
+	if err != nil {
+		return fmt.Errorf("BeegfsMetaCollector.Init(): Failed to get current user: %v", err)
+	}
+	if user.Uid != "0" {
+		return fmt.Errorf("BeegfsMetaCollector.Init(): BeeGFS file system statistics can only be queried by user root")
+	}
+
+	// Check if beegfs-ctl is in executable search path
+	_, err = exec.LookPath(m.config.Beegfs)
+	if err != nil {
+		return fmt.Errorf("BeegfsMetaCollector.Init(): Failed to find beegfs-ctl binary '%s': %v", m.config.Beegfs, err)
+	}
+	m.init = true
+	return nil
+}
+
+func (m *BeegfsMetaCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	if !m.init {
+		return
+	}
+	//get mounpoint
+	buffer, _ := os.ReadFile(string("/proc/mounts"))
+	mounts := strings.Split(string(buffer), "\n")
+	var mountpoints []string
+	for _, line := range mounts {
+		if len(line) == 0 {
+			continue
+		}
+		f := strings.Fields(line)
+		if strings.Contains(f[0], "beegfs_ondemand") {
+			// Skip excluded filesystems
+			if _, skip := m.skipFS[f[1]]; skip {
+				continue
+			}
+			mountpoints = append(mountpoints, f[1])
+		}
+	}
+
+	if len(mountpoints) == 0 {
+		return
+	}
+
+	for _, mountpoint := range mountpoints {
+		m.tags["filesystem"] = mountpoint
+
+		// bwwgfs-ctl:
+		// --clientstats: Show client IO statistics.
+		// --nodetype=meta: The node type to query (meta, storage).
+		// --interval:
+		// --mount=/mnt/beeond/: Which mount point
+		//cmd := exec.Command(m.config.Beegfs, "/root/mc/test.txt")
+		mountoption := "--mount=" + mountpoint
+		cmd := exec.Command(m.config.Beegfs, "--clientstats",
+			"--nodetype=meta", mountoption, "--allstats")
+		cmd.Stdin = strings.NewReader("\n")
+		cmdStdout := new(bytes.Buffer)
+		cmdStderr := new(bytes.Buffer)
+		cmd.Stdout = cmdStdout
+		cmd.Stderr = cmdStderr
+		err := cmd.Run()
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "BeegfsMetaCollector.Read(): Failed to execute command \"%s\": %s\n", cmd.String(), err.Error())
+			fmt.Fprintf(os.Stderr, "BeegfsMetaCollector.Read(): command exit code: \"%d\"\n", cmd.ProcessState.ExitCode())
+			data, _ := io.ReadAll(cmdStderr)
+			fmt.Fprintf(os.Stderr, "BeegfsMetaCollector.Read(): command stderr: \"%s\"\n", string(data))
+			data, _ = io.ReadAll(cmdStdout)
+			fmt.Fprintf(os.Stderr, "BeegfsMetaCollector.Read(): command stdout: \"%s\"\n", string(data))
+			return
+		}
+		// Read I/O statistics
+		scanner := bufio.NewScanner(cmdStdout)
+
+		sumLine := regexp.MustCompile(`^Sum:\s+\d+\s+\[[a-zA-Z]+\]+`)
+		//Line := regexp.MustCompile(`^(.*)\s+(\d)+\s+\[([a-zA-Z]+)\]+`)
+		statsLine := regexp.MustCompile(`^(.*?)\s+?(\d.*?)$`)
+		singleSpacePattern := regexp.MustCompile(`\s+`)
+		removePattern := regexp.MustCompile(`[\[|\]]`)
+
+		for scanner.Scan() {
+			readLine := scanner.Text()
+			//fmt.Println(readLine)
+			// Jump few lines, we only want the I/O stats from nodes
+			if !sumLine.MatchString(readLine) {
+				continue
+			}
+
+			match := statsLine.FindStringSubmatch(readLine)
+			// nodeName = "Sum:" or would be nodes
+			// nodeName := match[1]
+			//Remove multiple whitespaces
+			dummy := removePattern.ReplaceAllString(match[2], " ")
+			metaStats := strings.TrimSpace(singleSpacePattern.ReplaceAllString(dummy, " "))
+			split := strings.Split(metaStats, " ")
+
+			// fill map with values
+			// split[i+1] = mdname
+			// split[i] = amount of md operations
+			for i := 0; i <= len(split)-1; i += 2 {
+				if _, ok := m.matches[split[i+1]]; ok {
+					m.matches["beegfs_cmeta_"+split[i+1]] = split[i]
+				} else {
+					f1, err := strconv.ParseFloat(m.matches["other"], 32)
+					if err != nil {
+						cclog.ComponentError(
+							m.name,
+							fmt.Sprintf("Metric (other): Failed to convert str written '%s' to float: %v", m.matches["other"], err))
+						continue
+					}
+					f2, err := strconv.ParseFloat(split[i], 32)
+					if err != nil {
+						cclog.ComponentError(
+							m.name,
+							fmt.Sprintf("Metric (other): Failed to convert str written '%s' to float: %v", m.matches["other"], err))
+						continue
+					}
+					//mdStat["other"] = fmt.Sprintf("%f", f1+f2)
+					m.matches["beegfs_cstorage_other"] = fmt.Sprintf("%f", f1+f2)
+				}
+			}
+
+			for key, data := range m.matches {
+				value, _ := strconv.ParseFloat(data, 32)
+				y, err := lp.NewMessage(key, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
+				if err == nil {
+					output <- y
+				}
+			}
+		}
+	}
+}
+
+func (m *BeegfsMetaCollector) Close() {
+	m.init = false
+}

collectors/beegfsmetaMetric.md

@@ -0,0 +1,75 @@
+## `BeeGFS on Demand` collector
+This Collector is to collect BeeGFS on Demand (BeeOND) metadata clientstats.
+
+```json
+  "beegfs_meta": {
+	"beegfs_path": "/usr/bin/beegfs-ctl",
+    "exclude_filesystem": [
+      "/mnt/ignore_me"
+    ],
+    "exclude_metrics": [     
+          "ack",
+          "entInf",
+          "fndOwn"
+    ]
+  }
+```
+
+The `BeeGFS On Demand (BeeOND)` collector uses the `beegfs-ctl` command to read performance metrics for
+BeeGFS filesystems.
+
+The reported filesystems can be filtered with the `exclude_filesystem` option
+in the configuration.
+
+The path to the `beegfs-ctl` command can be configured with the `beegfs_path` option
+in the configuration.
+
+When using the `exclude_metrics` option, the excluded metrics are summed as `other`.
+
+Important: The metrics listed below, are similar to the naming of BeeGFS. The Collector prefixes these with `beegfs_cstorage`(beegfs client storage).
+
+For example beegfs metric `open`-> `beegfs_cstorage_open`
+
+Available Metrics:
+
+* sum
+* ack
+* close
+* entInf
+* fndOwn
+* mkdir
+* create
+* rddir
+* refrEnt
+* mdsInf
+* rmdir
+* rmLnk
+* mvDirIns
+* mvFiIns
+* open
+* ren
+* sChDrct
+* sAttr
+* sDirPat
+* stat
+* statfs
+* trunc
+* symlnk
+* unlnk
+* lookLI
+* statLI
+* revalLI
+* openLI
+* createLI
+* hardlnk
+* flckAp
+* flckEn
+* flckRg
+* dirparent
+* listXA
+* getXA
+* rmXA
+* setXA
+* mirror
+
+The collector adds a `filesystem` tag to all metrics

collectors/beegfsstorageMetric.go

@@ -0,0 +1,222 @@
+package collectors
+
+import (
+	"bufio"
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"os"
+	"os/exec"
+	"os/user"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+)
+
+// Struct for the collector-specific JSON config
+type BeegfsStorageCollectorConfig struct {
+	Beegfs            string   `json:"beegfs_path"`
+	ExcludeMetrics    []string `json:"exclude_metrics,omitempty"`
+	ExcludeFilesystem []string `json:"exclude_filesystem"`
+}
+
+type BeegfsStorageCollector struct {
+	metricCollector
+	tags    map[string]string
+	matches map[string]string
+	config  BeegfsStorageCollectorConfig
+	skipFS  map[string]struct{}
+}
+
+func (m *BeegfsStorageCollector) Init(config json.RawMessage) error {
+	// Check if already initialized
+	if m.init {
+		return nil
+	}
+	// Metrics
+	var storageStat_array = [18]string{
+		"sum", "ack", "sChDrct", "getFSize",
+		"sAttr", "statfs", "trunc", "close",
+		"fsync", "ops-rd", "MiB-rd/s", "ops-wr",
+		"MiB-wr/s", "gendbg", "hrtbeat", "remNode",
+		"storInf", "unlnk"}
+
+	m.name = "BeegfsStorageCollector"
+	m.setup()
+	m.parallel = true
+	// Set default beegfs-ctl binary
+
+	m.config.Beegfs = DEFAULT_BEEGFS_CMD
+
+	// Read JSON configuration
+	if len(config) > 0 {
+		err := json.Unmarshal(config, &m.config)
+		if err != nil {
+			return err
+		}
+	}
+	println(m.config.Beegfs)
+	//create map with possible variables
+	m.matches = make(map[string]string)
+	for _, value := range storageStat_array {
+		_, skip := stringArrayContains(m.config.ExcludeMetrics, value)
+		if skip {
+			m.matches["other"] = "0"
+		} else {
+			m.matches["beegfs_cstorage_"+value] = "0"
+		}
+	}
+
+	m.meta = map[string]string{
+		"source": m.name,
+		"group":  "BeegfsStorage",
+	}
+	m.tags = map[string]string{
+		"type":       "node",
+		"filesystem": "",
+	}
+	m.skipFS = make(map[string]struct{})
+	for _, fs := range m.config.ExcludeFilesystem {
+		m.skipFS[fs] = struct{}{}
+	}
+
+	// Beegfs file system statistics can only be queried by user root
+	user, err := user.Current()
+	if err != nil {
+		return fmt.Errorf("BeegfsStorageCollector.Init(): Failed to get current user: %v", err)
+	}
+	if user.Uid != "0" {
+		return fmt.Errorf("BeegfsStorageCollector.Init(): BeeGFS file system statistics can only be queried by user root")
+	}
+
+	// Check if beegfs-ctl is in executable search path
+	_, err = exec.LookPath(m.config.Beegfs)
+	if err != nil {
+		return fmt.Errorf("BeegfsStorageCollector.Init(): Failed to find beegfs-ctl binary '%s': %v", m.config.Beegfs, err)
+	}
+	m.init = true
+	return nil
+}
+
+func (m *BeegfsStorageCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	if !m.init {
+		return
+	}
+	//get mounpoint
+	buffer, _ := os.ReadFile(string("/proc/mounts"))
+	mounts := strings.Split(string(buffer), "\n")
+	var mountpoints []string
+	for _, line := range mounts {
+		if len(line) == 0 {
+			continue
+		}
+		f := strings.Fields(line)
+		if strings.Contains(f[0], "beegfs_ondemand") {
+			// Skip excluded filesystems
+			if _, skip := m.skipFS[f[1]]; skip {
+				continue
+			}
+			mountpoints = append(mountpoints, f[1])
+		}
+	}
+	if len(mountpoints) == 0 {
+		return
+	}
+	// collects stats for each BeeGFS on Demand FS
+	for _, mountpoint := range mountpoints {
+		m.tags["filesystem"] = mountpoint
+
+		// bwwgfs-ctl:
+		// --clientstats: Show client IO statistics.
+		// --nodetype=meta: The node type to query (meta, storage).
+		// --interval:
+		// --mount=/mnt/beeond/: Which mount point
+		//cmd := exec.Command(m.config.Beegfs, "/root/mc/test.txt")
+		mountoption := "--mount=" + mountpoint
+		cmd := exec.Command(m.config.Beegfs, "--clientstats",
+			"--nodetype=storage", mountoption, "--allstats")
+		cmd.Stdin = strings.NewReader("\n")
+		cmdStdout := new(bytes.Buffer)
+		cmdStderr := new(bytes.Buffer)
+		cmd.Stdout = cmdStdout
+		cmd.Stderr = cmdStderr
+		err := cmd.Run()
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "BeegfsStorageCollector.Read(): Failed to execute command \"%s\": %s\n", cmd.String(), err.Error())
+			fmt.Fprintf(os.Stderr, "BeegfsStorageCollector.Read(): command exit code: \"%d\"\n", cmd.ProcessState.ExitCode())
+			data, _ := io.ReadAll(cmdStderr)
+			fmt.Fprintf(os.Stderr, "BeegfsStorageCollector.Read(): command stderr: \"%s\"\n", string(data))
+			data, _ = io.ReadAll(cmdStdout)
+			fmt.Fprintf(os.Stderr, "BeegfsStorageCollector.Read(): command stdout: \"%s\"\n", string(data))
+			return
+		}
+		// Read I/O statistics
+		scanner := bufio.NewScanner(cmdStdout)
+
+		sumLine := regexp.MustCompile(`^Sum:\s+\d+\s+\[[a-zA-Z]+\]+`)
+		//Line := regexp.MustCompile(`^(.*)\s+(\d)+\s+\[([a-zA-Z]+)\]+`)
+		statsLine := regexp.MustCompile(`^(.*?)\s+?(\d.*?)$`)
+		singleSpacePattern := regexp.MustCompile(`\s+`)
+		removePattern := regexp.MustCompile(`[\[|\]]`)
+
+		for scanner.Scan() {
+			readLine := scanner.Text()
+			//fmt.Println(readLine)
+			// Jump few lines, we only want the I/O stats from nodes
+			if !sumLine.MatchString(readLine) {
+				continue
+			}
+
+			match := statsLine.FindStringSubmatch(readLine)
+			// nodeName = "Sum:" or would be nodes
+			// nodeName := match[1]
+			//Remove multiple whitespaces
+			dummy := removePattern.ReplaceAllString(match[2], " ")
+			metaStats := strings.TrimSpace(singleSpacePattern.ReplaceAllString(dummy, " "))
+			split := strings.Split(metaStats, " ")
+
+			// fill map with values
+			// split[i+1] = mdname
+			// split[i] = amount of operations
+			for i := 0; i <= len(split)-1; i += 2 {
+				if _, ok := m.matches[split[i+1]]; ok {
+					m.matches["beegfs_cstorage_"+split[i+1]] = split[i]
+					//m.matches[split[i+1]] = split[i]
+				} else {
+					f1, err := strconv.ParseFloat(m.matches["other"], 32)
+					if err != nil {
+						cclog.ComponentError(
+							m.name,
+							fmt.Sprintf("Metric (other): Failed to convert str written '%s' to float: %v", m.matches["other"], err))
+						continue
+					}
+					f2, err := strconv.ParseFloat(split[i], 32)
+					if err != nil {
+						cclog.ComponentError(
+							m.name,
+							fmt.Sprintf("Metric (other): Failed to convert str written '%s' to float: %v", m.matches["other"], err))
+						continue
+					}
+					m.matches["beegfs_cstorage_other"] = fmt.Sprintf("%f", f1+f2)
+				}
+			}
+
+			for key, data := range m.matches {
+				value, _ := strconv.ParseFloat(data, 32)
+				y, err := lp.NewMessage(key, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
+				if err == nil {
+					output <- y
+				}
+			}
+		}
+	}
+}
+
+func (m *BeegfsStorageCollector) Close() {
+	m.init = false
+}

collectors/beegfsstorageMetric.md

@@ -0,0 +1,55 @@
+## `BeeGFS on Demand` collector
+This Collector is to collect BeeGFS on Demand (BeeOND) storage stats.
+
+```json
+  "beegfs_storage": {
+	"beegfs_path": "/usr/bin/beegfs-ctl",
+    "exclude_filesystem": [
+      "/mnt/ignore_me"
+    ],
+    "exclude_metrics": [     
+          "ack",
+		  "storInf",
+		  "unlnk"
+    ]
+  }
+```
+
+The `BeeGFS On Demand (BeeOND)` collector uses the `beegfs-ctl` command to read performance metrics for BeeGFS filesystems.
+
+The reported filesystems can be filtered with the `exclude_filesystem` option
+in the configuration.
+
+The path to the `beegfs-ctl` command can be configured with the `beegfs_path` option
+in the configuration.
+
+When using the `exclude_metrics` option, the excluded metrics are summed as `other`.
+
+Important: The metrics listed below, are similar to the naming of BeeGFS. The Collector prefixes these with `beegfs_cstorage_`(beegfs client meta).
+For example beegfs metric `open`-> `beegfs_cstorage_`
+
+Note: BeeGFS FS offers many Metadata Information. Probably it makes sense to exlcude most of them. Nevertheless, these excluded metrics will be summed as `beegfs_cstorage_other`. 
+
+Available Metrics:
+
+* "sum"
+* "ack"
+* "sChDrct" 
+* "getFSize"
+* "sAttr"
+* "statfs"
+* "trunc"
+* "close"
+* "fsync"
+* "ops-rd"
+* "MiB-rd/s" 
+* "ops-wr"
+* "MiB-wr/s" 
+* "endbg" 
+* "hrtbeat"
+* "remNode"
+* "storInf"
+* "unlnk"
+
+
+The collector adds a `filesystem` tag to all metrics

collectors/collectorManager.go

@@ -6,9 +6,9 @@ import (
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-metric-collector/internal/ccLogger"
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
-	mct "github.com/ClusterCockpit/cc-metric-collector/internal/multiChanTicker"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	mct "github.com/ClusterCockpit/cc-metric-collector/pkg/multiChanTicker"
 )
 
 // Map of all available metric collectors
@@ -19,36 +19,50 @@ var AvailableCollectors = map[string]MetricCollector{
 	"memstat":         new(MemstatCollector),
 	"netstat":         new(NetstatCollector),
 	"ibstat":          new(InfinibandCollector),
-	"ibstat_perfquery": new(InfinibandPerfQueryCollector),
 	"lustrestat":      new(LustreCollector),
 	"cpustat":         new(CpustatCollector),
 	"topprocs":        new(TopProcsCollector),
 	"nvidia":          new(NvidiaCollector),
 	"customcmd":       new(CustomCmdCollector),
+	"iostat":          new(IOstatCollector),
 	"diskstat":        new(DiskstatCollector),
 	"tempstat":        new(TempCollector),
 	"ipmistat":        new(IpmiCollector),
 	"gpfs":            new(GpfsCollector),
 	"cpufreq":         new(CPUFreqCollector),
 	"cpufreq_cpuinfo": new(CPUFreqCpuInfoCollector),
-	"nfsstat":          new(NfsCollector),
+	"nfs3stat":        new(Nfs3Collector),
+	"nfs4stat":        new(Nfs4Collector),
+	"numastats":       new(NUMAStatsCollector),
+	"beegfs_meta":     new(BeegfsMetaCollector),
+	"beegfs_storage":  new(BeegfsStorageCollector),
+	"rapl":            new(RAPLCollector),
+	"rocm_smi":        new(RocmSmiCollector),
+	"self":            new(SelfCollector),
+	"schedstat":       new(SchedstatCollector),
+	"nfsiostat":       new(NfsIOStatCollector),
+	"perf_event":      new(PerfEventCollector),
+	"perf_cmd":        new(PerfCmdCollector),
 }
 
 // Metric collector manager data structure
 type collectorManager struct {
-	collectors []MetricCollector          // List of metric collectors to use
-	output     chan lp.CCMetric           // Output channels
+	collectors   []MetricCollector          // List of metric collectors to read in parallel
+	serial       []MetricCollector          // List of metric collectors to read serially
+	output       chan lp.CCMessage          // Output channels
 	done         chan bool                  // channel to finish / stop metric collector manager
 	ticker       mct.MultiChanTicker        // periodically ticking once each interval
 	duration     time.Duration              // duration (for metrics that measure over a given duration)
 	wg           *sync.WaitGroup            // wait group for all goroutines in cc-metric-collector
 	config       map[string]json.RawMessage // json encoded config for collector manager
+	collector_wg sync.WaitGroup             // internally used wait group for the parallel reading of collector
+	parallel_run bool                       // Flag whether the collectors are currently read in parallel
 }
 
 // Metric collector manager access functions
 type CollectorManager interface {
 	Init(ticker mct.MultiChanTicker, duration time.Duration, wg *sync.WaitGroup, collectConfigFile string) error
-	AddOutput(output chan lp.CCMetric)
+	AddOutput(output chan lp.CCMessage)
 	Start()
 	Close()
 }
@@ -62,6 +76,7 @@ type CollectorManager interface {
 // Initialization is done for all configured collectors
 func (cm *collectorManager) Init(ticker mct.MultiChanTicker, duration time.Duration, wg *sync.WaitGroup, collectConfigFile string) error {
 	cm.collectors = make([]MetricCollector, 0)
+	cm.serial = make([]MetricCollector, 0)
 	cm.output = nil
 	cm.done = make(chan bool)
 	cm.wg = wg
@@ -96,7 +111,11 @@ func (cm *collectorManager) Init(ticker mct.MultiChanTicker, duration time.Durat
 			continue
 		}
 		cclog.ComponentDebug("CollectorManager", "ADD COLLECTOR", collector.Name())
+		if collector.Parallel() {
 			cm.collectors = append(cm.collectors, collector)
+		} else {
+			cm.serial = append(cm.serial, collector)
+		}
 	}
 	return nil
 }
@@ -112,6 +131,10 @@ func (cm *collectorManager) Start() {
 		// Collector manager is done
 		done := func() {
 			// close all metric collectors
+			if cm.parallel_run {
+				cm.collector_wg.Wait()
+				cm.parallel_run = false
+			}
 			for _, c := range cm.collectors {
 				c.Close()
 			}
@@ -126,7 +149,26 @@ func (cm *collectorManager) Start() {
 				done()
 				return
 			case t := <-tick:
+				cm.parallel_run = true
 				for _, c := range cm.collectors {
+					// Wait for done signal or execute the collector
+					select {
+					case <-cm.done:
+						done()
+						return
+					default:
+						// Read metrics from collector c via goroutine
+						cclog.ComponentDebug("CollectorManager", c.Name(), t)
+						cm.collector_wg.Add(1)
+						go func(myc MetricCollector) {
+							myc.Read(cm.duration, cm.output)
+							cm.collector_wg.Done()
+						}(c)
+					}
+				}
+				cm.collector_wg.Wait()
+				cm.parallel_run = false
+				for _, c := range cm.serial {
 					// Wait for done signal or execute the collector
 					select {
 					case <-cm.done:
@@ -147,7 +189,7 @@ func (cm *collectorManager) Start() {
 }
 
 // AddOutput adds the output channel to the metric collector manager
-func (cm *collectorManager) AddOutput(output chan lp.CCMetric) {
+func (cm *collectorManager) AddOutput(output chan lp.CCMessage) {
 	cm.output = output
 }
 

collectors/cpufreqCpuinfoMetric.go

@@ -5,32 +5,21 @@ import (
 	"encoding/json"
 
 	"fmt"
-	"log"
 	"os"
 	"strconv"
 	"strings"
 	"time"
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
 
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 )
 
-//
 // CPUFreqCollector
 // a metric collector to measure the current frequency of the CPUs
 // as obtained from /proc/cpuinfo
 // Only measure on the first hyperthread
-//
 type CPUFreqCpuInfoCollectorTopology struct {
-	processor               string // logical processor number (continuous, starting at 0)
-	coreID                  string // socket local core ID
-	coreID_int              int
-	physicalPackageID       string // socket / package ID
-	physicalPackageID_int   int
-	numPhysicalPackages     string // number of  sockets / packages
-	numPhysicalPackages_int int
 	isHT   bool
-	numNonHT                string // number of non hyperthreading processors
-	numNonHT_int            int
 	tagSet map[string]string
 }
 
@@ -40,28 +29,37 @@ type CPUFreqCpuInfoCollector struct {
 }
 
 func (m *CPUFreqCpuInfoCollector) Init(config json.RawMessage) error {
+	// Check if already initialized
+	if m.init {
+		return nil
+	}
+
+	m.setup()
+
 	m.name = "CPUFreqCpuInfoCollector"
+	m.parallel = true
 	m.meta = map[string]string{
 		"source": m.name,
-		"group":  "cpufreq",
+		"group":  "CPU",
+		"unit":   "MHz",
 	}
 
 	const cpuInfoFile = "/proc/cpuinfo"
 	file, err := os.Open(cpuInfoFile)
 	if err != nil {
-		return fmt.Errorf("Failed to open '%s': %v", cpuInfoFile, err)
+		return fmt.Errorf("failed to open file '%s': %v", cpuInfoFile, err)
 	}
 	defer file.Close()
 
 	// Collect topology information from file cpuinfo
 	foundFreq := false
 	processor := ""
-	numNonHT_int := 0
 	coreID := ""
 	physicalPackageID := ""
-	maxPhysicalPackageID := 0
 	m.topology = make([]CPUFreqCpuInfoCollectorTopology, 0)
 	coreSeenBefore := make(map[string]bool)
+
+	// Read cpuinfo file, line by line
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {
 		lineSplit := strings.Split(scanner.Text(), ":")
@@ -87,39 +85,22 @@ func (m *CPUFreqCpuInfoCollector) Init(config json.RawMessage) error {
 			len(coreID) > 0 &&
 			len(physicalPackageID) > 0 {
 
-			coreID_int, err := strconv.Atoi(coreID)
-			if err != nil {
-				return fmt.Errorf("Unable to convert coreID to int: %v", err)
-			}
-			physicalPackageID_int, err := strconv.Atoi(physicalPackageID)
-			if err != nil {
-				return fmt.Errorf("Unable to convert physicalPackageID to int: %v", err)
-			}
-
-			// increase maximun socket / package ID, when required
-			if physicalPackageID_int > maxPhysicalPackageID {
-				maxPhysicalPackageID = physicalPackageID_int
-			}
-
 			globalID := physicalPackageID + ":" + coreID
-			isHT := coreSeenBefore[globalID]
-			coreSeenBefore[globalID] = true
-			if !isHT {
-				// increase number on non hyper thread cores
-				numNonHT_int++
-			}
 
 			// store collected topology information
-			m.topology = append(
-				m.topology,
+			m.topology = append(m.topology,
 				CPUFreqCpuInfoCollectorTopology{
-					processor:             processor,
-					coreID:                coreID,
-					coreID_int:            coreID_int,
-					physicalPackageID:     physicalPackageID,
-					physicalPackageID_int: physicalPackageID_int,
-					isHT:                  isHT,
-				})
+					isHT: coreSeenBefore[globalID],
+					tagSet: map[string]string{
+						"type":       "hwthread",
+						"type-id":    processor,
+						"package_id": physicalPackageID,
+					},
+				},
+			)
+
+			// mark core as seen before
+			coreSeenBefore[globalID] = true
 
 			// reset topology information
 			foundFreq = false
@@ -129,37 +110,27 @@ func (m *CPUFreqCpuInfoCollector) Init(config json.RawMessage) error {
 		}
 	}
 
-	numPhysicalPackageID_int := maxPhysicalPackageID + 1
-	numPhysicalPackageID := fmt.Sprint(numPhysicalPackageID_int)
-	numNonHT := fmt.Sprint(numNonHT_int)
-	for i := range m.topology {
-		t := &m.topology[i]
-		t.numPhysicalPackages = numPhysicalPackageID
-		t.numPhysicalPackages_int = numPhysicalPackageID_int
-		t.numNonHT = numNonHT
-		t.numNonHT_int = numNonHT_int
-		t.tagSet = map[string]string{
-			"type":        "cpu",
-			"type-id":     t.processor,
-			"num_core":    t.numNonHT,
-			"package_id":  t.physicalPackageID,
-			"num_package": t.numPhysicalPackages,
-		}
+	// Check if at least one CPU with frequency information was detected
+	if len(m.topology) == 0 {
+		return fmt.Errorf("no CPU frequency info found in %s", cpuInfoFile)
 	}
 
 	m.init = true
 	return nil
 }
 
-
-func (m *CPUFreqCpuInfoCollector) Read(interval time.Duration, output chan lp.CCMetric) {
+func (m *CPUFreqCpuInfoCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	// Check if already initialized
 	if !m.init {
 		return
 	}
+
 	const cpuInfoFile = "/proc/cpuinfo"
 	file, err := os.Open(cpuInfoFile)
 	if err != nil {
-		log.Printf("Failed to open '%s': %v", cpuInfoFile, err)
+		cclog.ComponentError(
+			m.name,
+			fmt.Sprintf("Read(): Failed to open file '%s': %v", cpuInfoFile, err))
 		return
 	}
 	defer file.Close()
@@ -174,15 +145,16 @@ func (m *CPUFreqCpuInfoCollector) Read(interval time.Duration, output chan lp.CC
 
 			// frequency
 			if key == "cpu MHz" {
-				t := &m.topology[processorCounter]
+				t := m.topology[processorCounter]
 				if !t.isHT {
 					value, err := strconv.ParseFloat(strings.TrimSpace(lineSplit[1]), 64)
 					if err != nil {
-						log.Printf("Failed to convert cpu MHz to float: %v", err)
+						cclog.ComponentError(
+							m.name,
+							fmt.Sprintf("Read(): Failed to convert cpu MHz '%s' to float64: %v", lineSplit[1], err))
 						return
 					}
-					y, err := lp.New("cpufreq", t.tagSet, m.meta, map[string]interface{}{"value": value}, now)
-					if err == nil {
+					if y, err := lp.NewMessage("cpufreq", t.tagSet, m.meta, map[string]interface{}{"value": value}, now); err == nil {
 						output <- y
 					}
 				}

collectors/cpufreqCpuinfoMetric.md

@@ -0,0 +1,11 @@
+## `cpufreq_cpuinfo` collector
+
+```json
+  "cpufreq_cpuinfo": {}
+```
+
+The `cpufreq_cpuinfo` collector reads the clock frequency from `/proc/cpuinfo` and outputs a handful **hwthread** metrics.
+
+Metrics:
+
+* `cpufreq`

collectors/cpufreqMetric.go

@@ -1,60 +1,31 @@
 package collectors
 
 import (
-	"bufio"
 	"encoding/json"
 	"fmt"
-	"log"
 	"os"
 	"path/filepath"
 	"strconv"
 	"strings"
 	"time"
 
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	"github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
 	"golang.org/x/sys/unix"
 )
 
-//
-// readOneLine reads one line from a file.
-// It returns ok when file was successfully read.
-// In this case text contains the first line of the files contents.
-//
-func readOneLine(filename string) (text string, ok bool) {
-	file, err := os.Open(filename)
-	if err != nil {
-		return
-	}
-	defer file.Close()
-	scanner := bufio.NewScanner(file)
-	ok = scanner.Scan()
-	text = scanner.Text()
-	return
-}
-
 type CPUFreqCollectorTopology struct {
-	processor               string // logical processor number (continuous, starting at 0)
-	coreID                  string // socket local core ID
-	coreID_int              int
-	physicalPackageID       string // socket / package ID
-	physicalPackageID_int   int
-	numPhysicalPackages     string // number of  sockets / packages
-	numPhysicalPackages_int int
-	isHT                    bool
-	numNonHT                string // number of non hyperthreading processors
-	numNonHT_int            int
 	scalingCurFreqFile string
 	tagSet             map[string]string
 }
 
-//
 // CPUFreqCollector
 // a metric collector to measure the current frequency of the CPUs
 // as obtained from the hardware (in KHz)
-// Only measure on the first hyper thread
+// Only measure on the first hyper-thread
 //
 // See: https://www.kernel.org/doc/html/latest/admin-guide/pm/cpufreq.html
-//
 type CPUFreqCollector struct {
 	metricCollector
 	topology []CPUFreqCollectorTopology
@@ -64,8 +35,14 @@ type CPUFreqCollector struct {
 }
 
 func (m *CPUFreqCollector) Init(config json.RawMessage) error {
+	// Check if already initialized
+	if m.init {
+		return nil
+	}
+
 	m.name = "CPUFreqCollector"
 	m.setup()
+	m.parallel = true
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
@@ -74,116 +51,48 @@ func (m *CPUFreqCollector) Init(config json.RawMessage) error {
 	}
 	m.meta = map[string]string{
 		"source": m.name,
-		"group":  "CPU Frequency",
+		"group":  "CPU",
+		"unit":   "Hz",
 	}
 
-	// Loop for all CPU directories
-	baseDir := "/sys/devices/system/cpu"
-	globPattern := filepath.Join(baseDir, "cpu[0-9]*")
-	cpuDirs, err := filepath.Glob(globPattern)
-	if err != nil {
-		return fmt.Errorf("CPUFreqCollector.Init() unable to glob files with pattern %s: %v", globPattern, err)
-	}
-	if cpuDirs == nil {
-		return fmt.Errorf("CPUFreqCollector.Init() unable to find any files with pattern %s", globPattern)
-	}
+	m.topology = make([]CPUFreqCollectorTopology, 0)
+	for _, c := range ccTopology.CpuData() {
 
-	// Initialize CPU topology
-	m.topology = make([]CPUFreqCollectorTopology, len(cpuDirs))
-	for _, cpuDir := range cpuDirs {
-		processor := strings.TrimPrefix(cpuDir, "/sys/devices/system/cpu/cpu")
-		processor_int, err := strconv.Atoi(processor)
-		if err != nil {
-			return fmt.Errorf("CPUFreqCollector.Init() unable to convert cpuID to int: %v", err)
-		}
-
-		// Read package ID
-		physicalPackageIDFile := filepath.Join(cpuDir, "topology", "physical_package_id")
-		physicalPackageID, ok := readOneLine(physicalPackageIDFile)
-		if !ok {
-			return fmt.Errorf("CPUFreqCollector.Init() unable to read physical package ID from %s", physicalPackageIDFile)
-		}
-		physicalPackageID_int, err := strconv.Atoi(physicalPackageID)
-		if err != nil {
-			return fmt.Errorf("CPUFreqCollector.Init() unable to convert packageID to int: %v", err)
-		}
-
-		// Read core ID
-		coreIDFile := filepath.Join(cpuDir, "topology", "core_id")
-		coreID, ok := readOneLine(coreIDFile)
-		if !ok {
-			return fmt.Errorf("CPUFreqCollector.Init() unable to read core ID from %s", coreIDFile)
-		}
-		coreID_int, err := strconv.Atoi(coreID)
-		if err != nil {
-			return fmt.Errorf("CPUFreqCollector.Init() unable to convert coreID to int: %v", err)
+		// Skip hyper threading CPUs
+		if c.CpuID != c.CoreCPUsList[0] {
+			continue
 		}
 
 		// Check access to current frequency file
-		scalingCurFreqFile := filepath.Join(cpuDir, "cpufreq", "scaling_cur_freq")
-		err = unix.Access(scalingCurFreqFile, unix.R_OK)
+		scalingCurFreqFile := filepath.Join("/sys/devices/system/cpu", fmt.Sprintf("cpu%d", c.CpuID), "cpufreq/scaling_cur_freq")
+		err := unix.Access(scalingCurFreqFile, unix.R_OK)
 		if err != nil {
-			return fmt.Errorf("CPUFreqCollector.Init() unable to access %s: %v", scalingCurFreqFile, err)
+			return fmt.Errorf("unable to access file '%s': %v", scalingCurFreqFile, err)
 		}
 
-		t := &m.topology[processor_int]
-		t.processor = processor
-		t.physicalPackageID = physicalPackageID
-		t.physicalPackageID_int = physicalPackageID_int
-		t.coreID = coreID
-		t.coreID_int = coreID_int
-		t.scalingCurFreqFile = scalingCurFreqFile
-	}
-
-	// is processor a hyperthread?
-	coreSeenBefore := make(map[string]bool)
-	for i := range m.topology {
-		t := &m.topology[i]
-
-		globalID := t.physicalPackageID + ":" + t.coreID
-		t.isHT = coreSeenBefore[globalID]
-		coreSeenBefore[globalID] = true
-	}
-
-	// number of non hyper thread cores and packages / sockets
-	numNonHT_int := 0
-	maxPhysicalPackageID := 0
-	for i := range m.topology {
-		t := &m.topology[i]
-
-		// Update maxPackageID
-		if t.physicalPackageID_int > maxPhysicalPackageID {
-			maxPhysicalPackageID = t.physicalPackageID_int
-		}
-
-		if !t.isHT {
-			numNonHT_int++
-		}
-	}
-
-	numPhysicalPackageID_int := maxPhysicalPackageID + 1
-	numPhysicalPackageID := fmt.Sprint(numPhysicalPackageID_int)
-	numNonHT := fmt.Sprint(numNonHT_int)
-	for i := range m.topology {
-		t := &m.topology[i]
-		t.numPhysicalPackages = numPhysicalPackageID
-		t.numPhysicalPackages_int = numPhysicalPackageID_int
-		t.numNonHT = numNonHT
-		t.numNonHT_int = numNonHT_int
-		t.tagSet = map[string]string{
-			"type":        "cpu",
-			"type-id":     t.processor,
-			"num_core":    t.numNonHT,
-			"package_id":  t.physicalPackageID,
-			"num_package": t.numPhysicalPackages,
-		}
+		m.topology = append(m.topology,
+			CPUFreqCollectorTopology{
+				tagSet: map[string]string{
+					"type":       "hwthread",
+					"type-id":    fmt.Sprint(c.CpuID),
+					"package_id": fmt.Sprint(c.Socket),
+				},
+				scalingCurFreqFile: scalingCurFreqFile,
+			},
+		)
 	}
 
+	// Initialized
+	cclog.ComponentDebug(
+		m.name,
+		"initialized",
+		len(m.topology), "non-hyper-threading CPUs")
 	m.init = true
 	return nil
 }
 
-func (m *CPUFreqCollector) Read(interval time.Duration, output chan lp.CCMetric) {
+func (m *CPUFreqCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	// Check if already initialized
 	if !m.init {
 		return
 	}
@@ -192,25 +101,23 @@ func (m *CPUFreqCollector) Read(interval time.Duration, output chan lp.CCMetric)
 	for i := range m.topology {
 		t := &m.topology[i]
 
-		// skip hyperthreads
-		if t.isHT {
-			continue
-		}
-
 		// Read current frequency
-		line, ok := readOneLine(t.scalingCurFreqFile)
-		if !ok {
-			log.Printf("CPUFreqCollector.Read(): Failed to read one line from file '%s'", t.scalingCurFreqFile)
+		line, err := os.ReadFile(t.scalingCurFreqFile)
+		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to read file '%s': %v", t.scalingCurFreqFile, err))
 			continue
 		}
-		cpuFreq, err := strconv.Atoi(line)
+		cpuFreq, err := strconv.ParseInt(strings.TrimSpace(string(line)), 10, 64)
 		if err != nil {
-			log.Printf("CPUFreqCollector.Read(): Failed to convert CPU frequency '%s': %v", line, err)
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert CPU frequency '%s' to int64: %v", line, err))
 			continue
 		}
 
-		y, err := lp.New("cpufreq", t.tagSet, m.meta, map[string]interface{}{"value": cpuFreq}, now)
-		if err == nil {
+		if y, err := lp.NewMessage("cpufreq", t.tagSet, m.meta, map[string]interface{}{"value": cpuFreq}, now); err == nil {
 			output <- y
 		}
 	}

collectors/cpufreqMetric.md

@@ -0,0 +1,13 @@
+## `cpufreq_cpuinfo` collector
+
+```json
+  "cpufreq": {
+    "exclude_metrics": []
+  }
+```
+
+The `cpufreq` collector reads the clock frequency from `/sys/devices/system/cpu/cpu*/cpufreq` and outputs a handful **hwthread** metrics.
+
+Metrics:
+
+* `cpufreq`

collectors/cpustatMetric.go

@@ -1,13 +1,17 @@
 package collectors
 
 import (
+	"bufio"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"os"
 	"strconv"
 	"strings"
 	"time"
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	sysconf "github.com/tklauser/go-sysconf"
 )
 
 const CPUSTATFILE = `/proc/stat`
@@ -19,72 +23,158 @@ type CpustatCollectorConfig struct {
 type CpustatCollector struct {
 	metricCollector
 	config        CpustatCollectorConfig
+	lastTimestamp time.Time // Store time stamp of last tick to derive values
+	matches       map[string]int
+	cputags       map[string]map[string]string
+	nodetags      map[string]string
+	olddata       map[string]map[string]int64
 }
 
 func (m *CpustatCollector) Init(config json.RawMessage) error {
 	m.name = "CpustatCollector"
 	m.setup()
+	m.parallel = true
 	m.meta = map[string]string{"source": m.name, "group": "CPU"}
+	m.nodetags = map[string]string{"type": "node"}
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
 			return err
 		}
 	}
+	matches := map[string]int{
+		"cpu_user":       1,
+		"cpu_nice":       2,
+		"cpu_system":     3,
+		"cpu_idle":       4,
+		"cpu_iowait":     5,
+		"cpu_irq":        6,
+		"cpu_softirq":    7,
+		"cpu_steal":      8,
+		"cpu_guest":      9,
+		"cpu_guest_nice": 10,
+	}
+
+	m.matches = make(map[string]int)
+	for match, index := range matches {
+		doExclude := false
+		for _, exclude := range m.config.ExcludeMetrics {
+			if match == exclude {
+				doExclude = true
+				break
+			}
+		}
+		if !doExclude {
+			m.matches[match] = index
+		}
+	}
+
+	// Check input file
+	file, err := os.Open(string(CPUSTATFILE))
+	if err != nil {
+		cclog.ComponentError(m.name, err.Error())
+	}
+	defer file.Close()
+
+	// Pre-generate tags for all CPUs
+	num_cpus := 0
+	m.cputags = make(map[string]map[string]string)
+	m.olddata = make(map[string]map[string]int64)
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		linefields := strings.Fields(line)
+		if strings.Compare(linefields[0], "cpu") == 0 {
+			m.olddata["cpu"] = make(map[string]int64)
+			for k, v := range m.matches {
+				m.olddata["cpu"][k], _ = strconv.ParseInt(linefields[v], 0, 64)
+			}
+		} else if strings.HasPrefix(linefields[0], "cpu") && strings.Compare(linefields[0], "cpu") != 0 {
+			cpustr := strings.TrimLeft(linefields[0], "cpu")
+			cpu, _ := strconv.Atoi(cpustr)
+			m.cputags[linefields[0]] = map[string]string{"type": "hwthread", "type-id": fmt.Sprintf("%d", cpu)}
+			m.olddata[linefields[0]] = make(map[string]int64)
+			for k, v := range m.matches {
+				m.olddata[linefields[0]][k], _ = strconv.ParseInt(linefields[v], 0, 64)
+			}
+			num_cpus++
+		}
+	}
+	m.lastTimestamp = time.Now()
 	m.init = true
 	return nil
 }
 
-func (c *CpustatCollector) parseStatLine(line string, cpu int, exclude []string, output chan lp.CCMetric) {
-	ls := strings.Fields(line)
-	matches := []string{"", "cpu_user", "cpu_nice", "cpu_system", "cpu_idle", "cpu_iowait", "cpu_irq", "cpu_softirq", "cpu_steal", "cpu_guest", "cpu_guest_nice"}
-	for _, ex := range exclude {
-		matches, _ = RemoveFromStringList(matches, ex)
+func (m *CpustatCollector) parseStatLine(linefields []string, tags map[string]string, output chan lp.CCMessage, now time.Time, tsdelta time.Duration) {
+	values := make(map[string]float64)
+	clktck, _ := sysconf.Sysconf(sysconf.SC_CLK_TCK)
+	for match, index := range m.matches {
+		if len(match) > 0 {
+			x, err := strconv.ParseInt(linefields[index], 0, 64)
+			if err == nil {
+				vdiff := x - m.olddata[linefields[0]][match]
+				m.olddata[linefields[0]][match] = x // Store new value for next run
+				values[match] = float64(vdiff) / float64(tsdelta.Seconds()) / float64(clktck)
+			}
+		}
 	}
 
-	var tags map[string]string
-	if cpu < 0 {
-		tags = map[string]string{"type": "node"}
-	} else {
-		tags = map[string]string{"type": "cpu", "type-id": fmt.Sprintf("%d", cpu)}
-	}
-	for i, m := range matches {
-		if len(m) > 0 {
-			x, err := strconv.ParseInt(ls[i], 0, 64)
-			if err == nil {
-				y, err := lp.New(m, tags, c.meta, map[string]interface{}{"value": int(x)}, time.Now())
+	sum := float64(0)
+	for name, value := range values {
+		sum += value
+		y, err := lp.NewMessage(name, tags, m.meta, map[string]interface{}{"value": value * 100}, now)
 		if err == nil {
+			y.AddTag("unit", "Percent")
 			output <- y
 		}
 	}
+	if v, ok := values["cpu_idle"]; ok {
+		sum -= v
+		y, err := lp.NewMessage("cpu_used", tags, m.meta, map[string]interface{}{"value": sum * 100}, now)
+		if err == nil {
+			y.AddTag("unit", "Percent")
+			output <- y
 		}
 	}
 }
 
-func (m *CpustatCollector) Read(interval time.Duration, output chan lp.CCMetric) {
+func (m *CpustatCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 	if !m.init {
 		return
 	}
-	buffer, err := ioutil.ReadFile(string(CPUSTATFILE))
+	num_cpus := 0
+	now := time.Now()
+	tsdelta := now.Sub(m.lastTimestamp)
 
+	file, err := os.Open(string(CPUSTATFILE))
 	if err != nil {
-		return
+		cclog.ComponentError(m.name, err.Error())
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		linefields := strings.Fields(line)
+		if strings.Compare(linefields[0], "cpu") == 0 {
+			m.parseStatLine(linefields, m.nodetags, output, now, tsdelta)
+		} else if strings.HasPrefix(linefields[0], "cpu") {
+			m.parseStatLine(linefields, m.cputags[linefields[0]], output, now, tsdelta)
+			num_cpus++
+		}
 	}
 
-	ll := strings.Split(string(buffer), "\n")
-	for _, line := range ll {
-		if len(line) == 0 {
-			continue
-		}
-		ls := strings.Fields(line)
-		if strings.Compare(ls[0], "cpu") == 0 {
-			m.parseStatLine(line, -1, m.config.ExcludeMetrics, output)
-		} else if strings.HasPrefix(ls[0], "cpu") {
-			cpustr := strings.TrimLeft(ls[0], "cpu")
-			cpu, _ := strconv.Atoi(cpustr)
-			m.parseStatLine(line, cpu, m.config.ExcludeMetrics, output)
-		}
+	num_cpus_metric, err := lp.NewMessage("num_cpus",
+		m.nodetags,
+		m.meta,
+		map[string]interface{}{"value": int(num_cpus)},
+		now,
+	)
+	if err == nil {
+		output <- num_cpus_metric
 	}
+
+	m.lastTimestamp = now
 }
 
 func (m *CpustatCollector) Close() {

collectors/cpustatMetric.md

@@ -1,5 +1,6 @@
 
 ## `cpustat` collector
+
 ```json
   "cpustat": {
     "exclude_metrics": [
@@ -8,16 +9,19 @@
   }
 ```
 
-The `cpustat` collector reads data from `/proc/stats` and outputs a handful **node** and **hwthread** metrics. If a metric is not required, it can be excluded from forwarding it to the sink.
+The `cpustat` collector reads data from `/proc/stat` and outputs a handful **node** and **hwthread** metrics. If a metric is not required, it can be excluded from forwarding it to the sink.
 
 Metrics:
-* `cpu_user`
-* `cpu_nice`
-* `cpu_system`
-* `cpu_idle`
-* `cpu_iowait`
-* `cpu_irq`
-* `cpu_softirq`
-* `cpu_steal`
-* `cpu_guest`
-* `cpu_guest_nice`
+
+* `cpu_user` with `unit=Percent`
+* `cpu_nice` with `unit=Percent`
+* `cpu_system` with `unit=Percent`
+* `cpu_idle` with `unit=Percent`
+* `cpu_iowait` with `unit=Percent`
+* `cpu_irq` with `unit=Percent`
+* `cpu_softirq` with `unit=Percent`
+* `cpu_steal` with `unit=Percent`
+* `cpu_guest` with `unit=Percent`
+* `cpu_guest_nice` with `unit=Percent`
+* `cpu_used` = `cpu_* - cpu_idle` with `unit=Percent`
+* `num_cpus`

collectors/customCmdMetric.go

@@ -3,13 +3,13 @@ package collectors
 import (
 	"encoding/json"
 	"errors"
-	"io/ioutil"
 	"log"
+	"os"
 	"os/exec"
 	"strings"
 	"time"
 
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
 	influx "github.com/influxdata/line-protocol"
 )
 
@@ -33,6 +33,7 @@ type CustomCmdCollector struct {
 func (m *CustomCmdCollector) Init(config json.RawMessage) error {
 	var err error
 	m.name = "CustomCmdCollector"
+	m.parallel = true
 	m.meta = map[string]string{"source": m.name, "group": "Custom"}
 	if len(config) > 0 {
 		err = json.Unmarshal(config, &m.config)
@@ -47,12 +48,12 @@ func (m *CustomCmdCollector) Init(config json.RawMessage) error {
 		command := exec.Command(cmdfields[0], strings.Join(cmdfields[1:], " "))
 		command.Wait()
 		_, err = command.Output()
-		if err != nil {
+		if err == nil {
 			m.commands = append(m.commands, c)
 		}
 	}
 	for _, f := range m.config.Files {
-		_, err = ioutil.ReadFile(f)
+		_, err = os.ReadFile(f)
 		if err == nil {
 			m.files = append(m.files, f)
 		} else {
@@ -61,7 +62,7 @@ func (m *CustomCmdCollector) Init(config json.RawMessage) error {
 		}
 	}
 	if len(m.files) == 0 && len(m.commands) == 0 {
-		return errors.New("No metrics to collect")
+		return errors.New("no metrics to collect")
 	}
 	m.handler = influx.NewMetricHandler()
 	m.parser = influx.NewParser(m.handler)
@@ -74,7 +75,7 @@ var DefaultTime = func() time.Time {
 	return time.Unix(42, 0)
 }
 
-func (m *CustomCmdCollector) Read(interval time.Duration, output chan lp.CCMetric) {
+func (m *CustomCmdCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 	if !m.init {
 		return
 	}
@@ -97,14 +98,12 @@ func (m *CustomCmdCollector) Read(interval time.Duration, output chan lp.CCMetri
 			if skip {
 				continue
 			}
-			y, err := lp.New(c.Name(), Tags2Map(c), m.meta, Fields2Map(c), c.Time())
-			if err == nil {
-				output <- y
-			}
+
+			output <- lp.FromInfluxMetric(c)
 		}
 	}
 	for _, file := range m.files {
-		buffer, err := ioutil.ReadFile(file)
+		buffer, err := os.ReadFile(file)
 		if err != nil {
 			log.Print(err)
 			return
@@ -119,10 +118,7 @@ func (m *CustomCmdCollector) Read(interval time.Duration, output chan lp.CCMetri
 			if skip {
 				continue
 			}
-			y, err := lp.New(f.Name(), Tags2Map(f), m.meta, Fields2Map(f), f.Time())
-			if err == nil {
-				output <- y
-			}
+			output <- lp.FromInfluxMetric(f)
 		}
 	}
 }

collectors/diskstatMetric.go

@@ -1,18 +1,20 @@
 package collectors
 
 import (
-	"io/ioutil"
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
-	//	"log"
+	"bufio"
 	"encoding/json"
-	"errors"
-	"strconv"
+	"os"
 	"strings"
+	"syscall"
 	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
 )
 
-const DISKSTATFILE = `/proc/diskstats`
-const DISKSTAT_SYSFSPATH = `/sys/block`
+//	"log"
+
+const MOUNTFILE = `/proc/self/mounts`
 
 type DiskstatCollectorConfig struct {
 	ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
@@ -20,93 +22,98 @@ type DiskstatCollectorConfig struct {
 
 type DiskstatCollector struct {
 	metricCollector
-	matches map[int]string
-	config  DiskstatCollectorConfig
+	//matches map[string]int
+	config IOstatCollectorConfig
+	//devices map[string]IOstatCollectorEntry
 }
 
 func (m *DiskstatCollector) Init(config json.RawMessage) error {
-	var err error
 	m.name = "DiskstatCollector"
+	m.parallel = true
 	m.meta = map[string]string{"source": m.name, "group": "Disk"}
 	m.setup()
 	if len(config) > 0 {
-		err = json.Unmarshal(config, &m.config)
+		err := json.Unmarshal(config, &m.config)
 		if err != nil {
 			return err
 		}
 	}
-	// https://www.kernel.org/doc/html/latest/admin-guide/iostats.html
-	matches := map[int]string{
-		3:  "reads",
-		4:  "reads_merged",
-		5:  "read_sectors",
-		6:  "read_ms",
-		7:  "writes",
-		8:  "writes_merged",
-		9:  "writes_sectors",
-		10: "writes_ms",
-		11: "ioops",
-		12: "ioops_ms",
-		13: "ioops_weighted_ms",
-		14: "discards",
-		15: "discards_merged",
-		16: "discards_sectors",
-		17: "discards_ms",
-		18: "flushes",
-		19: "flushes_ms",
-	}
-	m.matches = make(map[int]string)
-	for k, v := range matches {
-		_, skip := stringArrayContains(m.config.ExcludeMetrics, v)
-		if !skip {
-			m.matches[k] = v
-		}
-	}
-	if len(m.matches) == 0 {
-		return errors.New("No metrics to collect")
-	}
-	_, err = ioutil.ReadFile(string(DISKSTATFILE))
-	if err == nil {
-		m.init = true
-	}
+	file, err := os.Open(string(MOUNTFILE))
+	if err != nil {
+		cclog.ComponentError(m.name, err.Error())
 		return err
+	}
+	defer file.Close()
+	m.init = true
+	return nil
 }
 
-func (m *DiskstatCollector) Read(interval time.Duration, output chan lp.CCMetric) {
-	var lines []string
+func (m *DiskstatCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 	if !m.init {
 		return
 	}
 
-	buffer, err := ioutil.ReadFile(string(DISKSTATFILE))
+	file, err := os.Open(string(MOUNTFILE))
 	if err != nil {
+		cclog.ComponentError(m.name, err.Error())
 		return
 	}
-	lines = strings.Split(string(buffer), "\n")
+	defer file.Close()
 
-	for _, line := range lines {
+	part_max_used := uint64(0)
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
 		if len(line) == 0 {
 			continue
 		}
-		f := strings.Fields(line)
-		if strings.Contains(f[2], "loop") {
+		if !strings.HasPrefix(line, "/dev") {
 			continue
 		}
-		tags := map[string]string{
-			"device": f[2],
-			"type":   "node",
+		linefields := strings.Fields(line)
+		if strings.Contains(linefields[0], "loop") {
+			continue
 		}
-		for idx, name := range m.matches {
-			if idx < len(f) {
-				x, err := strconv.ParseInt(f[idx], 0, 64)
-				if err == nil {
-					y, err := lp.New(name, tags, m.meta, map[string]interface{}{"value": int(x)}, time.Now())
+		if strings.Contains(linefields[1], "boot") {
+			continue
+		}
+		path := strings.Replace(linefields[1], `\040`, " ", -1)
+		stat := syscall.Statfs_t{
+			Blocks: 0,
+			Bsize:  0,
+			Bfree:  0,
+		}
+		err := syscall.Statfs(path, &stat)
+		if err != nil {
+			continue
+		}
+		if stat.Blocks == 0 || stat.Bsize == 0 {
+			continue
+		}
+		tags := map[string]string{"type": "node", "device": linefields[0]}
+		total := (stat.Blocks * uint64(stat.Bsize)) / uint64(1000000000)
+		y, err := lp.NewMessage("disk_total", tags, m.meta, map[string]interface{}{"value": total}, time.Now())
 		if err == nil {
+			y.AddMeta("unit", "GBytes")
 			output <- y
 		}
+		free := (stat.Bfree * uint64(stat.Bsize)) / uint64(1000000000)
+		y, err = lp.NewMessage("disk_free", tags, m.meta, map[string]interface{}{"value": free}, time.Now())
+		if err == nil {
+			y.AddMeta("unit", "GBytes")
+			output <- y
+		}
+		if total > 0 {
+			perc := (100 * (total - free)) / total
+			if perc > part_max_used {
+				part_max_used = perc
 			}
 		}
 	}
+	y, err := lp.NewMessage("part_max_used", map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": int(part_max_used)}, time.Now())
+	if err == nil {
+		y.AddMeta("unit", "percent")
+		output <- y
 	}
 }
 

collectors/diskstatMetric.md

@@ -4,31 +4,18 @@
 ```json
   "diskstat": {
     "exclude_metrics": [
-      "read_ms"
+      "disk_total"
     ],
   }
 ```
 
-The `netstat` collector reads data from `/proc/net/dev` and outputs a handful **node** metrics. If a metric is not required, it can be excluded from forwarding it to the sink.
+The `diskstat` collector reads data from `/proc/self/mounts` and outputs a handful **node** metrics. If a metric is not required, it can be excluded from forwarding it to the sink.
 
-Metrics:
-* `reads`
-* `reads_merged`
-* `read_sectors`
-* `read_ms`
-* `writes`
-* `writes_merged`
-* `writes_sectors`
-* `writes_ms`
-* `ioops`
-* `ioops_ms`
-* `ioops_weighted_ms`
-* `discards`
-* `discards_merged`
-* `discards_sectors`
-* `discards_ms`
-* `flushes`
-* `flushes_ms`
+Metrics per device (with `device` tag):
+* `disk_total` (unit `GBytes`)
+* `disk_free` (unit `GBytes`)
+
+Global metrics:
+* `part_max_used` (unit `percent`)
 
-The device name is added as tag `device`.
 

collectors/gpfsMetric.go

@@ -5,33 +5,52 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"log"
-	"os"
 	"os/exec"
 	"os/user"
 	"strconv"
 	"strings"
 	"time"
 
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
 )
 
+const DEFAULT_GPFS_CMD = "mmpmon"
+
+type GpfsCollectorLastState struct {
+	bytesRead    int64
+	bytesWritten int64
+}
+
 type GpfsCollector struct {
 	metricCollector
 	tags   map[string]string
 	config struct {
-		Mmpmon string `json:"mmpmon"`
+		Mmpmon            string   `json:"mmpmon_path,omitempty"`
+		ExcludeFilesystem []string `json:"exclude_filesystem,omitempty"`
+		SendBandwidths    bool     `json:"send_bandwidths"`
+		SendTotalValues   bool     `json:"send_total_values"`
 	}
+	skipFS        map[string]struct{}
+	lastTimestamp time.Time // Store time stamp of last tick to derive bandwidths
+	lastState     map[string]GpfsCollectorLastState
 }
 
 func (m *GpfsCollector) Init(config json.RawMessage) error {
+	// Check if already initialized
+	if m.init {
+		return nil
+	}
+
 	var err error
 	m.name = "GpfsCollector"
 	m.setup()
+	m.parallel = true
 
 	// Set default mmpmon binary
-	m.config.Mmpmon = "/usr/lpp/mmfs/bin/mmpmon"
+	m.config.Mmpmon = DEFAULT_GPFS_CMD
 
 	// Read JSON configuration
 	if len(config) > 0 {
@@ -49,31 +68,45 @@ func (m *GpfsCollector) Init(config json.RawMessage) error {
 		"type":       "node",
 		"filesystem": "",
 	}
+	m.skipFS = make(map[string]struct{})
+	for _, fs := range m.config.ExcludeFilesystem {
+		m.skipFS[fs] = struct{}{}
+	}
+	m.lastState = make(map[string]GpfsCollectorLastState)
 
 	// GPFS / IBM Spectrum Scale file system statistics can only be queried by user root
 	user, err := user.Current()
 	if err != nil {
-		return fmt.Errorf("GpfsCollector.Init(): Failed to get current user: %v", err)
+		return fmt.Errorf("failed to get current user: %v", err)
 	}
 	if user.Uid != "0" {
-		return fmt.Errorf("GpfsCollector.Init(): GPFS file system statistics can only be queried by user root")
+		return fmt.Errorf("GPFS file system statistics can only be queried by user root")
 	}
 
 	// Check if mmpmon is in executable search path
-	_, err = exec.LookPath(m.config.Mmpmon)
+	p, err := exec.LookPath(m.config.Mmpmon)
 	if err != nil {
-		return fmt.Errorf("GpfsCollector.Init(): Failed to find mmpmon binary '%s': %v", m.config.Mmpmon, err)
+		return fmt.Errorf("failed to find mmpmon binary '%s': %v", m.config.Mmpmon, err)
 	}
+	m.config.Mmpmon = p
 
 	m.init = true
 	return nil
 }
 
-func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
+func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	// Check if already initialized
 	if !m.init {
 		return
 	}
 
+	// Current time stamp
+	now := time.Now()
+	// time difference to last time stamp
+	timeDiff := now.Sub(m.lastTimestamp).Seconds()
+	// Save current timestamp
+	m.lastTimestamp = now
+
 	// mmpmon:
 	// -p: generate output that can be parsed
 	// -s: suppress the prompt on input
@@ -86,12 +119,15 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	cmd.Stderr = cmdStderr
 	err := cmd.Run()
 	if err != nil {
-		fmt.Fprintf(os.Stderr, "GpfsCollector.Read(): Failed to execute command \"%s\": %s\n", cmd.String(), err.Error())
-		fmt.Fprintf(os.Stderr, "GpfsCollector.Read(): command exit code: \"%d\"\n", cmd.ProcessState.ExitCode())
-		data, _ := ioutil.ReadAll(cmdStderr)
-		fmt.Fprintf(os.Stderr, "GpfsCollector.Read(): command stderr: \"%s\"\n", string(data))
-		data, _ = ioutil.ReadAll(cmdStdout)
-		fmt.Fprintf(os.Stderr, "GpfsCollector.Read(): command stdout: \"%s\"\n", string(data))
+		dataStdErr, _ := io.ReadAll(cmdStderr)
+		dataStdOut, _ := io.ReadAll(cmdStdout)
+		cclog.ComponentError(
+			m.name,
+			fmt.Sprintf("Read(): Failed to execute command \"%s\": %v\n", cmd.String(), err),
+			fmt.Sprintf("Read(): command exit code: \"%d\"\n", cmd.ProcessState.ExitCode()),
+			fmt.Sprintf("Read(): command stderr: \"%s\"\n", string(dataStdErr)),
+			fmt.Sprintf("Read(): command stdout: \"%s\"\n", string(dataStdOut)),
+		)
 		return
 	}
 
@@ -99,7 +135,12 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	scanner := bufio.NewScanner(cmdStdout)
 	for scanner.Scan() {
 		lineSplit := strings.Fields(scanner.Text())
-		if lineSplit[0] == "_fs_io_s_" {
+
+		// Only process lines starting with _fs_io_s_
+		if lineSplit[0] != "_fs_io_s_" {
+			continue
+		}
+
 		key_value := make(map[string]string)
 		for i := 1; i < len(lineSplit); i += 2 {
 			key_value[lineSplit[i]] = lineSplit[i+1]
@@ -113,35 +154,57 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 
 		filesystem, ok := key_value["_fs_"]
 		if !ok {
-				fmt.Fprintf(os.Stderr, "GpfsCollector.Read(): Failed to get filesystem name.\n")
+			cclog.ComponentError(
+				m.name,
+				"Read(): Failed to get filesystem name.")
 			continue
 		}
 
+		// Skip excluded filesystems
+		if _, skip := m.skipFS[filesystem]; skip {
+			continue
+		}
+
+		// Add filesystem tag
 		m.tags["filesystem"] = filesystem
 
+		// Create initial last state
+		if m.config.SendBandwidths {
+			if _, ok := m.lastState[filesystem]; !ok {
+				m.lastState[filesystem] = GpfsCollectorLastState{
+					bytesRead:    -1,
+					bytesWritten: -1,
+				}
+			}
+		}
+
 		// return code
 		rc, err := strconv.Atoi(key_value["_rc_"])
 		if err != nil {
-				fmt.Fprintf(os.Stderr, "GpfsCollector.Read(): Failed to convert return code: %s\n", err.Error())
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert return code '%s' to int: %v", key_value["_rc_"], err))
 			continue
 		}
 		if rc != 0 {
-				fmt.Fprintf(os.Stderr, "GpfsCollector.Read(): Filesystem %s not ok.", filesystem)
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Filesystem '%s' is not ok.", filesystem))
 			continue
 		}
 
 		sec, err := strconv.ParseInt(key_value["_t_"], 10, 64)
 		if err != nil {
-				fmt.Fprintf(os.Stderr,
-					"GpfsCollector.Read(): Failed to convert seconds to int '%s': %v\n",
-					key_value["_t_"], err)
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert seconds '%s' to int64: %v", key_value["_t_"], err))
 			continue
 		}
 		msec, err := strconv.ParseInt(key_value["_tu_"], 10, 64)
 		if err != nil {
-				fmt.Fprintf(os.Stderr,
-					"GpfsCollector.Read(): Failed to convert micro seconds to int '%s': %v\n",
-					key_value["_tu_"], err)
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert micro seconds '%s' to int64: %v", key_value["_tu_"], err))
 			continue
 		}
 		timestamp := time.Unix(sec, msec*1000)
@@ -149,96 +212,199 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 		// bytes read
 		bytesRead, err := strconv.ParseInt(key_value["_br_"], 10, 64)
 		if err != nil {
-				fmt.Fprintf(os.Stderr,
-					"GpfsCollector.Read(): Failed to convert bytes read '%s': %s\n",
-					key_value["_br_"], err.Error())
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert bytes read '%s' to int64: %v", key_value["_br_"], err))
 			continue
 		}
-
-			y, err := lp.New("gpfs_bytes_read", m.tags, m.meta, map[string]interface{}{"value": bytesRead}, timestamp)
-			if err == nil {
+		if y, err :=
+			lp.NewMessage(
+				"gpfs_bytes_read",
+				m.tags,
+				m.meta,
+				map[string]interface{}{
+					"value": bytesRead,
+				},
+				timestamp,
+			); err == nil {
+			y.AddMeta("unit", "bytes")
 			output <- y
 		}
+		if m.config.SendBandwidths {
+			if lastBytesRead := m.lastState[filesystem].bytesRead; lastBytesRead >= 0 {
+				bwRead := float64(bytesRead-lastBytesRead) / timeDiff
+				if y, err :=
+					lp.NewMessage(
+						"gpfs_bw_read",
+						m.tags,
+						m.meta,
+						map[string]interface{}{
+							"value": bwRead,
+						},
+						timestamp,
+					); err == nil {
+					y.AddMeta("unit", "bytes/sec")
+					output <- y
+				}
+			}
+		}
 
 		// bytes written
 		bytesWritten, err := strconv.ParseInt(key_value["_bw_"], 10, 64)
 		if err != nil {
-				fmt.Fprintf(os.Stderr,
-					"GpfsCollector.Read(): Failed to convert bytes written '%s': %s\n",
-					key_value["_bw_"], err.Error())
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert bytes written '%s' to int64: %v", key_value["_bw_"], err))
 			continue
 		}
-
-			y, err = lp.New("gpfs_bytes_written", m.tags, m.meta, map[string]interface{}{"value": bytesWritten}, timestamp)
-			if err == nil {
+		if y, err :=
+			lp.NewMessage(
+				"gpfs_bytes_written",
+				m.tags,
+				m.meta,
+				map[string]interface{}{
+					"value": bytesWritten,
+				},
+				timestamp,
+			); err == nil {
+			y.AddMeta("unit", "bytes")
 			output <- y
 		}
+		if m.config.SendBandwidths {
+			if lastBytesWritten := m.lastState[filesystem].bytesRead; lastBytesWritten >= 0 {
+				bwWrite := float64(bytesWritten-lastBytesWritten) / timeDiff
+				if y, err :=
+					lp.NewMessage(
+						"gpfs_bw_write",
+						m.tags,
+						m.meta,
+						map[string]interface{}{
+							"value": bwWrite,
+						},
+						timestamp,
+					); err == nil {
+					y.AddMeta("unit", "bytes/sec")
+					output <- y
+				}
+			}
+		}
+
+		if m.config.SendBandwidths {
+			m.lastState[filesystem] = GpfsCollectorLastState{
+				bytesRead:    bytesRead,
+				bytesWritten: bytesWritten,
+			}
+		}
 
 		// number of opens
 		numOpens, err := strconv.ParseInt(key_value["_oc_"], 10, 64)
 		if err != nil {
-				fmt.Fprintf(os.Stderr,
-					"GpfsCollector.Read(): Failed to convert number of opens '%s': %s\n",
-					key_value["_oc_"], err.Error())
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert number of opens '%s' to int64: %v", key_value["_oc_"], err))
 			continue
 		}
-			y, err = lp.New("gpfs_num_opens", m.tags, m.meta, map[string]interface{}{"value": numOpens}, timestamp)
-			if err == nil {
+		if y, err := lp.NewMessage("gpfs_num_opens", m.tags, m.meta, map[string]interface{}{"value": numOpens}, timestamp); err == nil {
 			output <- y
 		}
 
 		// number of closes
 		numCloses, err := strconv.ParseInt(key_value["_cc_"], 10, 64)
 		if err != nil {
-				fmt.Fprintf(os.Stderr, "GpfsCollector.Read(): Failed to convert number of closes: %s\n", err.Error())
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert number of closes: '%s' to int64: %v", key_value["_cc_"], err))
 			continue
 		}
-			y, err = lp.New("gpfs_num_closes", m.tags, m.meta, map[string]interface{}{"value": numCloses}, timestamp)
-			if err == nil {
+		if y, err := lp.NewMessage("gpfs_num_closes", m.tags, m.meta, map[string]interface{}{"value": numCloses}, timestamp); err == nil {
 			output <- y
 		}
 
 		// number of reads
 		numReads, err := strconv.ParseInt(key_value["_rdc_"], 10, 64)
 		if err != nil {
-				fmt.Fprintf(os.Stderr, "GpfsCollector.Read(): Failed to convert number of reads: %s\n", err.Error())
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert number of reads: '%s' to int64: %v", key_value["_rdc_"], err))
 			continue
 		}
-			y, err = lp.New("gpfs_num_reads", m.tags, m.meta, map[string]interface{}{"value": numReads}, timestamp)
-			if err == nil {
+		if y, err := lp.NewMessage("gpfs_num_reads", m.tags, m.meta, map[string]interface{}{"value": numReads}, timestamp); err == nil {
 			output <- y
 		}
 
 		// number of writes
 		numWrites, err := strconv.ParseInt(key_value["_wc_"], 10, 64)
 		if err != nil {
-				fmt.Fprintf(os.Stderr, "GpfsCollector.Read(): Failed to convert number of writes: %s\n", err.Error())
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert number of writes: '%s' to int64: %v", key_value["_wc_"], err))
 			continue
 		}
-			y, err = lp.New("gpfs_num_writes", m.tags, m.meta, map[string]interface{}{"value": numWrites}, timestamp)
-			if err == nil {
+		if y, err := lp.NewMessage("gpfs_num_writes", m.tags, m.meta, map[string]interface{}{"value": numWrites}, timestamp); err == nil {
 			output <- y
 		}
 
 		// number of read directories
 		numReaddirs, err := strconv.ParseInt(key_value["_dir_"], 10, 64)
 		if err != nil {
-				fmt.Fprintf(os.Stderr, "GpfsCollector.Read(): Failed to convert number of read directories: %s\n", err.Error())
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert number of read directories: '%s' to int64: %v", key_value["_dir_"], err))
 			continue
 		}
-			y, err = lp.New("gpfs_num_readdirs", m.tags, m.meta, map[string]interface{}{"value": numReaddirs}, timestamp)
-			if err == nil {
+		if y, err := lp.NewMessage("gpfs_num_readdirs", m.tags, m.meta, map[string]interface{}{"value": numReaddirs}, timestamp); err == nil {
 			output <- y
 		}
 
 		// Number of inode updates
 		numInodeUpdates, err := strconv.ParseInt(key_value["_iu_"], 10, 64)
 		if err != nil {
-				fmt.Fprintf(os.Stderr, "GpfsCollector.Read(): Failed to convert Number of inode updates: %s\n", err.Error())
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert number of inode updates: '%s' to int: %v", key_value["_iu_"], err))
 			continue
 		}
-			y, err = lp.New("gpfs_num_inode_updates", m.tags, m.meta, map[string]interface{}{"value": numInodeUpdates}, timestamp)
-			if err == nil {
+		if y, err := lp.NewMessage("gpfs_num_inode_updates", m.tags, m.meta, map[string]interface{}{"value": numInodeUpdates}, timestamp); err == nil {
+			output <- y
+		}
+
+		// Total values
+		if m.config.SendTotalValues {
+			bytesTotal := bytesRead + bytesWritten
+			if y, err :=
+				lp.NewMessage("gpfs_bytes_total",
+					m.tags,
+					m.meta,
+					map[string]interface{}{
+						"value": bytesTotal,
+					},
+					timestamp,
+				); err == nil {
+				y.AddMeta("unit", "bytes")
+				output <- y
+			}
+			iops := numReads + numWrites
+			if y, err :=
+				lp.NewMessage("gpfs_iops",
+					m.tags,
+					m.meta,
+					map[string]interface{}{
+						"value": iops,
+					},
+					timestamp,
+				); err == nil {
+				output <- y
+			}
+			metaops := numInodeUpdates + numCloses + numOpens + numReaddirs
+			if y, err :=
+				lp.NewMessage("gpfs_metaops",
+					m.tags,
+					m.meta,
+					map[string]interface{}{
+						"value": metaops,
+					},
+					timestamp,
+				); err == nil {
 				output <- y
 			}
 		}

collectors/gpfsMetric.md

@@ -0,0 +1,39 @@
+## `gpfs` collector
+
+```json
+  "ibstat": {
+    "mmpmon_path": "/path/to/mmpmon",
+    "exclude_filesystem": [
+      "fs1"
+    ],
+    "send_bandwidths": true,
+    "send_total_values": true
+  }
+```
+
+The `gpfs` collector uses the `mmpmon` command to read performance metrics for
+GPFS / IBM Spectrum Scale filesystems.
+
+The reported filesystems can be filtered with the `exclude_filesystem` option
+in the configuration.
+
+The path to the `mmpmon` command can be configured with the `mmpmon_path` option
+in the configuration. If nothing is set, the collector searches in `$PATH` for `mmpmon`.
+
+
+Metrics:
+* `gpfs_bytes_read`
+* `gpfs_bytes_written`
+* `gpfs_num_opens`
+* `gpfs_num_closes`
+* `gpfs_num_reads`
+* `gpfs_num_writes`
+* `gpfs_num_readdirs`
+* `gpfs_num_inode_updates`
+* `gpfs_bytes_total = gpfs_bytes_read + gpfs_bytes_written` (if `send_total_values == true`)
+* `gpfs_iops = gpfs_num_reads + gpfs_num_writes` (if `send_total_values == true`)
+* `gpfs_metaops = gpfs_num_inode_updates + gpfs_num_closes + gpfs_num_opens + gpfs_num_readdirs` (if `send_total_values == true`)
+* `gpfs_bw_read` (if `send_bandwidths == true`)
+* `gpfs_bw_write` (if `send_bandwidths == true`)
+
+The collector adds a `filesystem` tag to all metrics

collectors/infinibandMetric.go

@@ -4,7 +4,8 @@ import (
 	"fmt"
 	"os"
 
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
 	"golang.org/x/sys/unix"
 
 	"encoding/json"
@@ -14,13 +15,24 @@ import (
 	"time"
 )
 
-const IB_BASEPATH = `/sys/class/infiniband/`
+const IB_BASEPATH = "/sys/class/infiniband/"
+
+type InfinibandCollectorMetric struct {
+	name             string
+	path             string
+	unit             string
+	scale            int64
+	addToIBTotal     bool
+	addToIBTotalPkgs bool
+	currentState     int64
+	lastState        int64
+}
 
 type InfinibandCollectorInfo struct {
 	LID              string                      // IB local Identifier (LID)
 	device           string                      // IB device
 	port             string                      // IB device port
-	portCounterFiles map[string]string // mapping counter name -> file
+	portCounterFiles []InfinibandCollectorMetric // mapping counter name -> InfinibandCollectorMetric
 	tagSet           map[string]string           // corresponding tag list
 }
 
@@ -28,37 +40,35 @@ type InfinibandCollector struct {
 	metricCollector
 	config struct {
 		ExcludeDevices     []string `json:"exclude_devices,omitempty"` // IB device to exclude e.g. mlx5_0
+		SendAbsoluteValues bool     `json:"send_abs_values"`           // Send absolut values as read from sys filesystem
+		SendTotalValues    bool     `json:"send_total_values"`         // Send computed total values
+		SendDerivedValues  bool     `json:"send_derived_values"`       // Send derived values e.g. rates
 	}
 	info          []InfinibandCollectorInfo
-}
-
-func (m *InfinibandCollector) Help() {
-	fmt.Println("This collector includes all devices that can be found below ", IB_BASEPATH)
-	fmt.Println("and where any of the ports provides a 'lid' file (glob ", IB_BASEPATH, "/<dev>/ports/<port>/lid).")
-	fmt.Println("The devices can be filtered with the 'exclude_devices' option in the configuration.")
-	fmt.Println("For each found LIDs the collector calls the 'perfquery' command")
-	fmt.Println("")
-	fmt.Println("Full configuration object:")
-	fmt.Println("\"ibstat\" : {")
-	fmt.Println("  \"exclude_devices\" : [\"dev1\"]")
-	fmt.Println("}")
-	fmt.Println("")
-	fmt.Println("Metrics:")
-	fmt.Println("- ib_recv")
-	fmt.Println("- ib_xmit")
-	fmt.Println("- ib_recv_pkts")
-	fmt.Println("- ib_xmit_pkts")
+	lastTimestamp time.Time // Store time stamp of last tick to derive bandwidths
 }
 
 // Init initializes the Infiniband collector by walking through files below IB_BASEPATH
 func (m *InfinibandCollector) Init(config json.RawMessage) error {
+
+	// Check if already initialized
+	if m.init {
+		return nil
+	}
+
 	var err error
 	m.name = "InfinibandCollector"
 	m.setup()
+	m.parallel = true
 	m.meta = map[string]string{
 		"source": m.name,
 		"group":  "Network",
 	}
+
+	// Set default configuration,
+	m.config.SendAbsoluteValues = true
+	m.config.SendDerivedValues = false
+	// Read configuration file, allow overwriting default config
 	if len(config) > 0 {
 		err = json.Unmarshal(config, &m.config)
 		if err != nil {
@@ -70,17 +80,21 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 	globPattern := filepath.Join(IB_BASEPATH, "*", "ports", "*")
 	ibDirs, err := filepath.Glob(globPattern)
 	if err != nil {
-		return fmt.Errorf("Unable to glob files with pattern %s: %v", globPattern, err)
+		return fmt.Errorf("unable to glob files with pattern %s: %v", globPattern, err)
 	}
 	if ibDirs == nil {
-		return fmt.Errorf("Unable to find any directories with pattern %s", globPattern)
+		return fmt.Errorf("unable to find any directories with pattern %s", globPattern)
 	}
 
 	for _, path := range ibDirs {
 
 		// Skip, when no LID is assigned
-		LID, ok := readOneLine(path + "/lid")
-		if !ok || LID == "0x0" {
+		line, err := os.ReadFile(filepath.Join(path, "lid"))
+		if err != nil {
+			continue
+		}
+		LID := strings.TrimSpace(string(line))
+		if LID == "0x0" {
 			continue
 		}
 
@@ -103,16 +117,44 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 
 		// Check access to counter files
 		countersDir := filepath.Join(path, "counters")
-		portCounterFiles := map[string]string{
-			"ib_recv":      filepath.Join(countersDir, "port_rcv_data"),
-			"ib_xmit":      filepath.Join(countersDir, "port_xmit_data"),
-			"ib_recv_pkts": filepath.Join(countersDir, "port_rcv_packets"),
-			"ib_xmit_pkts": filepath.Join(countersDir, "port_xmit_packets"),
+		portCounterFiles := []InfinibandCollectorMetric{
+			{
+				name:         "ib_recv",
+				path:         filepath.Join(countersDir, "port_rcv_data"),
+				unit:         "bytes",
+				scale:        4,
+				addToIBTotal: true,
+				lastState:    -1,
+			},
+			{
+				name:         "ib_xmit",
+				path:         filepath.Join(countersDir, "port_xmit_data"),
+				unit:         "bytes",
+				scale:        4,
+				addToIBTotal: true,
+				lastState:    -1,
+			},
+			{
+				name:             "ib_recv_pkts",
+				path:             filepath.Join(countersDir, "port_rcv_packets"),
+				unit:             "packets",
+				scale:            1,
+				addToIBTotalPkgs: true,
+				lastState:        -1,
+			},
+			{
+				name:             "ib_xmit_pkts",
+				path:             filepath.Join(countersDir, "port_xmit_packets"),
+				unit:             "packets",
+				scale:            1,
+				addToIBTotalPkgs: true,
+				lastState:        -1,
+			},
 		}
-		for _, counterFile := range portCounterFiles {
-			err := unix.Access(counterFile, unix.R_OK)
+		for _, counter := range portCounterFiles {
+			err := unix.Access(counter.path, unix.R_OK)
 			if err != nil {
-				return fmt.Errorf("Unable to access %s: %v", counterFile, err)
+				return fmt.Errorf("unable to access %s: %v", counter.path, err)
 			}
 		}
 
@@ -132,7 +174,7 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 	}
 
 	if len(m.info) == 0 {
-		return fmt.Errorf("Found no IB devices")
+		return fmt.Errorf("found no IB devices")
 	}
 
 	m.init = true
@@ -140,25 +182,125 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 }
 
 // Read reads Infiniband counter files below IB_BASEPATH
-func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMetric) {
+func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 
 	// Check if already initialized
 	if !m.init {
 		return
 	}
 
+	// Current time stamp
 	now := time.Now()
-	for i := range m.info {
+	// time difference to last time stamp
+	timeDiff := now.Sub(m.lastTimestamp).Seconds()
+	// Save current timestamp
+	m.lastTimestamp = now
 
-		// device info
+	for i := range m.info {
 		info := &m.info[i]
-		for counterName, counterFile := range info.portCounterFiles {
-			if data, ok := readOneLine(counterFile); ok {
-				if v, err := strconv.ParseInt(data, 10, 64); err == nil {
-					if y, err := lp.New(counterName, info.tagSet, m.meta, map[string]interface{}{"value": v}, now); err == nil {
+
+		var ib_total, ib_total_pkts int64
+		for i := range info.portCounterFiles {
+			counterDef := &info.portCounterFiles[i]
+
+			// Read counter file
+			line, err := os.ReadFile(counterDef.path)
+			if err != nil {
+				cclog.ComponentError(
+					m.name,
+					fmt.Sprintf("Read(): Failed to read from file '%s': %v", counterDef.path, err))
+				continue
+			}
+			data := strings.TrimSpace(string(line))
+
+			// convert counter to int64
+			v, err := strconv.ParseInt(data, 10, 64)
+			if err != nil {
+				cclog.ComponentError(
+					m.name,
+					fmt.Sprintf("Read(): Failed to convert Infininiband metrice %s='%s' to int64: %v", counterDef.name, data, err))
+				continue
+			}
+			// Scale raw value
+			v *= counterDef.scale
+
+			// Save current state
+			counterDef.currentState = v
+
+			// Send absolut values
+			if m.config.SendAbsoluteValues {
+				if y, err :=
+					lp.NewMessage(
+						counterDef.name,
+						info.tagSet,
+						m.meta,
+						map[string]interface{}{
+							"value": counterDef.currentState,
+						},
+						now); err == nil {
+					y.AddMeta("unit", counterDef.unit)
 					output <- y
 				}
 			}
+
+			// Send derived values
+			if m.config.SendDerivedValues {
+				if counterDef.lastState >= 0 {
+					rate := float64((counterDef.currentState - counterDef.lastState)) / timeDiff
+					if y, err :=
+						lp.NewMessage(
+							counterDef.name+"_bw",
+							info.tagSet,
+							m.meta,
+							map[string]interface{}{
+								"value": rate,
+							},
+							now); err == nil {
+						y.AddMeta("unit", counterDef.unit+"/sec")
+						output <- y
+
+					}
+				}
+				counterDef.lastState = counterDef.currentState
+			}
+
+			// Sum up total values
+			if m.config.SendTotalValues {
+				switch {
+				case counterDef.addToIBTotal:
+					ib_total += counterDef.currentState
+				case counterDef.addToIBTotalPkgs:
+					ib_total_pkts += counterDef.currentState
+				}
+			}
+		}
+
+		// Send total values
+		if m.config.SendTotalValues {
+			if y, err :=
+				lp.NewMessage(
+					"ib_total",
+					info.tagSet,
+					m.meta,
+					map[string]interface{}{
+						"value": ib_total,
+					},
+					now); err == nil {
+				y.AddMeta("unit", "bytes")
+				output <- y
+			}
+
+			if y, err :=
+				lp.NewMessage(
+					"ib_total_pkts",
+					info.tagSet,
+					m.meta,
+					map[string]interface{}{
+						"value": ib_total_pkts,
+					},
+					now); err == nil {
+				y.AddMeta("unit", "packets")
+				output <- y
 			}
 		}
 	}

collectors/infinibandMetric.md

@@ -3,17 +3,33 @@
 
 ```json
   "ibstat": {
-    "perfquery_path" : "<path to perfquery command>",
     "exclude_devices": [
       "mlx4"
-    ]
+    ],
+    "send_abs_values": true,
+    "send_derived_values": true
   }
 ```
 
-The `ibstat` collector reads either data through the `perfquery` command or the sysfs files below `/sys/class/infiniband/<device>`.
+The `ibstat` collector includes all Infiniband devices that can be
+found below `/sys/class/infiniband/` and where any of the ports provides a
+LID file (`/sys/class/infiniband/<dev>/ports/<port>/lid`)
+
+The devices can be filtered with the `exclude_devices` option in the configuration.
+
+For each found LID the collector reads data through the sysfs files below `/sys/class/infiniband/<device>`. (See: <https://www.kernel.org/doc/Documentation/ABI/stable/sysfs-class-infiniband>)
 
 Metrics:
+
 * `ib_recv`
 * `ib_xmit`
+* `ib_recv_pkts`
+* `ib_xmit_pkts`
+* `ib_total = ib_recv + ib_xmit` (if `send_total_values == true`)
+* `ib_total_pkts = ib_recv_pkts + ib_xmit_pkts` (if `send_total_values == true`)
+* `ib_recv_bw` (if `send_derived_values == true`)
+* `ib_xmit_bw` (if `send_derived_values == true`)
+* `ib_recv_pkts_bw` (if `send_derived_values == true`)
+* `ib_xmit_pkts_bw` (if `send_derived_values == true`)
 
 The collector adds a `device` tag to all metrics

collectors/infinibandPerfQueryMetric.go

@@ -1,250 +0,0 @@
-package collectors
-
-import (
-	"fmt"
-	"io/ioutil"
-	"log"
-	"os/exec"
-
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
-
-	//	"os"
-	"encoding/json"
-	"errors"
-	"path/filepath"
-	"strconv"
-	"strings"
-	"time"
-)
-
-const PERFQUERY = `/usr/sbin/perfquery`
-
-type InfinibandPerfQueryCollector struct {
-	metricCollector
-	tags   map[string]string
-	lids   map[string]map[string]string
-	config struct {
-		ExcludeDevices []string `json:"exclude_devices,omitempty"`
-		PerfQueryPath  string   `json:"perfquery_path"`
-	}
-}
-
-func (m *InfinibandPerfQueryCollector) Help() {
-	fmt.Println("This collector includes all devices that can be found below ", IB_BASEPATH)
-	fmt.Println("and where any of the ports provides a 'lid' file (glob ", IB_BASEPATH, "/<dev>/ports/<port>/lid).")
-	fmt.Println("The devices can be filtered with the 'exclude_devices' option in the configuration.")
-	fmt.Println("For each found LIDs the collector calls the 'perfquery' command")
-	fmt.Println("The path to the 'perfquery' command can be configured with the 'perfquery_path' option")
-	fmt.Println("in the configuration")
-	fmt.Println("")
-	fmt.Println("Full configuration object:")
-	fmt.Println("\"ibstat\" : {")
-	fmt.Println("  \"perfquery_path\" : \"path/to/perfquery\"  # if omitted, it searches in $PATH")
-	fmt.Println("  \"exclude_devices\" : [\"dev1\"]")
-	fmt.Println("}")
-	fmt.Println("")
-	fmt.Println("Metrics:")
-	fmt.Println("- ib_recv")
-	fmt.Println("- ib_xmit")
-	fmt.Println("- ib_recv_pkts")
-	fmt.Println("- ib_xmit_pkts")
-}
-
-func (m *InfinibandPerfQueryCollector) Init(config json.RawMessage) error {
-	var err error
-	m.name = "InfinibandCollectorPerfQuery"
-	m.setup()
-	m.meta = map[string]string{"source": m.name, "group": "Network"}
-	m.tags = map[string]string{"type": "node"}
-	if len(config) > 0 {
-		err = json.Unmarshal(config, &m.config)
-		if err != nil {
-			return err
-		}
-	}
-	if len(m.config.PerfQueryPath) == 0 {
-		path, err := exec.LookPath("perfquery")
-		if err == nil {
-			m.config.PerfQueryPath = path
-		}
-	}
-	m.lids = make(map[string]map[string]string)
-	p := fmt.Sprintf("%s/*/ports/*/lid", string(IB_BASEPATH))
-	files, err := filepath.Glob(p)
-	for _, f := range files {
-		lid, err := ioutil.ReadFile(f)
-		if err == nil {
-			plist := strings.Split(strings.Replace(f, string(IB_BASEPATH), "", -1), "/")
-			skip := false
-			for _, d := range m.config.ExcludeDevices {
-				if d == plist[0] {
-					skip = true
-				}
-			}
-			if !skip {
-				m.lids[plist[0]] = make(map[string]string)
-				m.lids[plist[0]][plist[2]] = string(lid)
-			}
-		}
-	}
-
-	for _, ports := range m.lids {
-		for port, lid := range ports {
-			args := fmt.Sprintf("-r %s %s 0xf000", lid, port)
-			command := exec.Command(m.config.PerfQueryPath, args)
-			command.Wait()
-			_, err := command.Output()
-			if err != nil {
-				return fmt.Errorf("Failed to execute %s: %v", m.config.PerfQueryPath, err)
-			}
-		}
-	}
-
-	if len(m.lids) == 0 {
-		return errors.New("No usable IB devices")
-	}
-
-	m.init = true
-	return nil
-}
-
-func (m *InfinibandPerfQueryCollector) doPerfQuery(cmd string, dev string, lid string, port string, tags map[string]string, output chan lp.CCMetric) error {
-
-	args := fmt.Sprintf("-r %s %s 0xf000", lid, port)
-	command := exec.Command(cmd, args)
-	command.Wait()
-	stdout, err := command.Output()
-	if err != nil {
-		log.Print(err)
-		return err
-	}
-	ll := strings.Split(string(stdout), "\n")
-
-	for _, line := range ll {
-		if strings.HasPrefix(line, "PortRcvData") || strings.HasPrefix(line, "RcvData") {
-			lv := strings.Fields(line)
-			v, err := strconv.ParseFloat(lv[1], 64)
-			if err == nil {
-				y, err := lp.New("ib_recv", tags, m.meta, map[string]interface{}{"value": float64(v)}, time.Now())
-				if err == nil {
-					output <- y
-				}
-			}
-		}
-		if strings.HasPrefix(line, "PortXmitData") || strings.HasPrefix(line, "XmtData") {
-			lv := strings.Fields(line)
-			v, err := strconv.ParseFloat(lv[1], 64)
-			if err == nil {
-				y, err := lp.New("ib_xmit", tags, m.meta, map[string]interface{}{"value": float64(v)}, time.Now())
-				if err == nil {
-					output <- y
-				}
-			}
-		}
-		if strings.HasPrefix(line, "PortRcvPkts") || strings.HasPrefix(line, "RcvPkts") {
-			lv := strings.Fields(line)
-			v, err := strconv.ParseFloat(lv[1], 64)
-			if err == nil {
-				y, err := lp.New("ib_recv_pkts", tags, m.meta, map[string]interface{}{"value": float64(v)}, time.Now())
-				if err == nil {
-					output <- y
-				}
-			}
-		}
-		if strings.HasPrefix(line, "PortXmitPkts") || strings.HasPrefix(line, "XmtPkts") {
-			lv := strings.Fields(line)
-			v, err := strconv.ParseFloat(lv[1], 64)
-			if err == nil {
-				y, err := lp.New("ib_xmit_pkts", tags, m.meta, map[string]interface{}{"value": float64(v)}, time.Now())
-				if err == nil {
-					output <- y
-				}
-			}
-		}
-		if strings.HasPrefix(line, "PortRcvPkts") || strings.HasPrefix(line, "RcvPkts") {
-			lv := strings.Fields(line)
-			v, err := strconv.ParseFloat(lv[1], 64)
-			if err == nil {
-				y, err := lp.New("ib_recv_pkts", tags, m.meta, map[string]interface{}{"value": float64(v)}, time.Now())
-				if err == nil {
-					output <- y
-				}
-			}
-		}
-		if strings.HasPrefix(line, "PortXmitPkts") || strings.HasPrefix(line, "XmtPkts") {
-			lv := strings.Fields(line)
-			v, err := strconv.ParseFloat(lv[1], 64)
-			if err == nil {
-				y, err := lp.New("ib_xmit_pkts", tags, m.meta, map[string]interface{}{"value": float64(v)}, time.Now())
-				if err == nil {
-					output <- y
-				}
-			}
-		}
-	}
-	return nil
-}
-
-func (m *InfinibandPerfQueryCollector) Read(interval time.Duration, output chan lp.CCMetric) {
-
-	if m.init {
-		for dev, ports := range m.lids {
-			for port, lid := range ports {
-				tags := map[string]string{
-					"type":   "node",
-					"device": dev,
-					"port":   port,
-					"lid":    lid}
-				path := fmt.Sprintf("%s/%s/ports/%s/counters/", string(IB_BASEPATH), dev, port)
-				buffer, err := ioutil.ReadFile(fmt.Sprintf("%s/port_rcv_data", path))
-				if err == nil {
-					data := strings.Replace(string(buffer), "\n", "", -1)
-					v, err := strconv.ParseFloat(data, 64)
-					if err == nil {
-						y, err := lp.New("ib_recv", tags, m.meta, map[string]interface{}{"value": float64(v)}, time.Now())
-						if err == nil {
-							output <- y
-						}
-					}
-				}
-				buffer, err = ioutil.ReadFile(fmt.Sprintf("%s/port_xmit_data", path))
-				if err == nil {
-					data := strings.Replace(string(buffer), "\n", "", -1)
-					v, err := strconv.ParseFloat(data, 64)
-					if err == nil {
-						y, err := lp.New("ib_xmit", tags, m.meta, map[string]interface{}{"value": float64(v)}, time.Now())
-						if err == nil {
-							output <- y
-						}
-					}
-				}
-				buffer, err = ioutil.ReadFile(fmt.Sprintf("%s/port_rcv_packets", path))
-				if err == nil {
-					data := strings.Replace(string(buffer), "\n", "", -1)
-					v, err := strconv.ParseFloat(data, 64)
-					if err == nil {
-						y, err := lp.New("ib_recv_pkts", tags, m.meta, map[string]interface{}{"value": float64(v)}, time.Now())
-						if err == nil {
-							output <- y
-						}
-					}
-				}
-				buffer, err = ioutil.ReadFile(fmt.Sprintf("%s/port_xmit_packets", path))
-				if err == nil {
-					data := strings.Replace(string(buffer), "\n", "", -1)
-					v, err := strconv.ParseFloat(data, 64)
-					if err == nil {
-						y, err := lp.New("ib_xmit_pkts", tags, m.meta, map[string]interface{}{"value": float64(v)}, time.Now())
-						if err == nil {
-							output <- y
-						}
-					}
-				}
-			}
-		}
-	}
-}
-
-func (m *InfinibandPerfQueryCollector) Close() {
-	m.init = false
-}

collectors/iostatMetric.go

@@ -0,0 +1,156 @@
+package collectors
+
+import (
+	"bufio"
+	"os"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+
+	//	"log"
+	"encoding/json"
+	"errors"
+	"strconv"
+	"strings"
+	"time"
+)
+
+const IOSTATFILE = `/proc/diskstats`
+const IOSTAT_SYSFSPATH = `/sys/block`
+
+type IOstatCollectorConfig struct {
+	ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
+}
+
+type IOstatCollectorEntry struct {
+	lastValues map[string]int64
+	tags       map[string]string
+}
+
+type IOstatCollector struct {
+	metricCollector
+	matches map[string]int
+	config  IOstatCollectorConfig
+	devices map[string]IOstatCollectorEntry
+}
+
+func (m *IOstatCollector) Init(config json.RawMessage) error {
+	var err error
+	m.name = "IOstatCollector"
+	m.parallel = true
+	m.meta = map[string]string{"source": m.name, "group": "Disk"}
+	m.setup()
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			return err
+		}
+	}
+	// https://www.kernel.org/doc/html/latest/admin-guide/iostats.html
+	matches := map[string]int{
+		"io_reads":             3,
+		"io_reads_merged":      4,
+		"io_read_sectors":      5,
+		"io_read_ms":           6,
+		"io_writes":            7,
+		"io_writes_merged":     8,
+		"io_writes_sectors":    9,
+		"io_writes_ms":         10,
+		"io_ioops":             11,
+		"io_ioops_ms":          12,
+		"io_ioops_weighted_ms": 13,
+		"io_discards":          14,
+		"io_discards_merged":   15,
+		"io_discards_sectors":  16,
+		"io_discards_ms":       17,
+		"io_flushes":           18,
+		"io_flushes_ms":        19,
+	}
+	m.devices = make(map[string]IOstatCollectorEntry)
+	m.matches = make(map[string]int)
+	for k, v := range matches {
+		if _, skip := stringArrayContains(m.config.ExcludeMetrics, k); !skip {
+			m.matches[k] = v
+		}
+	}
+	if len(m.matches) == 0 {
+		return errors.New("no metrics to collect")
+	}
+	file, err := os.Open(string(IOSTATFILE))
+	if err != nil {
+		cclog.ComponentError(m.name, err.Error())
+		return err
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		linefields := strings.Fields(line)
+		device := linefields[2]
+		if strings.Contains(device, "loop") {
+			continue
+		}
+		values := make(map[string]int64)
+		for m := range m.matches {
+			values[m] = 0
+		}
+		m.devices[device] = IOstatCollectorEntry{
+			tags: map[string]string{
+				"device": linefields[2],
+				"type":   "node",
+			},
+			lastValues: values,
+		}
+	}
+	m.init = true
+	return err
+}
+
+func (m *IOstatCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	if !m.init {
+		return
+	}
+
+	file, err := os.Open(string(IOSTATFILE))
+	if err != nil {
+		cclog.ComponentError(m.name, err.Error())
+		return
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		if len(line) == 0 {
+			continue
+		}
+		linefields := strings.Fields(line)
+		device := linefields[2]
+		if strings.Contains(device, "loop") {
+			continue
+		}
+		if _, ok := m.devices[device]; !ok {
+			continue
+		}
+		entry := m.devices[device]
+		for name, idx := range m.matches {
+			if idx < len(linefields) {
+				x, err := strconv.ParseInt(linefields[idx], 0, 64)
+				if err == nil {
+					diff := x - entry.lastValues[name]
+					y, err := lp.NewMessage(name, entry.tags, m.meta, map[string]interface{}{"value": int(diff)}, time.Now())
+					if err == nil {
+						output <- y
+					}
+				}
+				entry.lastValues[name] = x
+			}
+		}
+		m.devices[device] = entry
+	}
+}
+
+func (m *IOstatCollector) Close() {
+	m.init = false
+}

collectors/iostatMetric.md

@@ -0,0 +1,34 @@
+
+## `iostat` collector
+
+```json
+  "iostat": {
+    "exclude_metrics": [
+      "read_ms"
+    ],
+  }
+```
+
+The `iostat` collector reads data from `/proc/diskstats` and outputs a handful **node** metrics. If a metric is not required, it can be excluded from forwarding it to the sink.
+
+Metrics:
+* `io_reads`
+* `io_reads_merged`
+* `io_read_sectors`
+* `io_read_ms`
+* `io_writes`
+* `io_writes_merged`
+* `io_writes_sectors`
+* `io_writes_ms`
+* `io_ioops`
+* `io_ioops_ms`
+* `io_ioops_weighted_ms`
+* `io_discards`
+* `io_discards_merged`
+* `io_discards_sectors`
+* `io_discards_ms`
+* `io_flushes`
+* `io_flushes_ms`
+
+The device name is added as tag `device`. For more details, see https://www.kernel.org/doc/html/latest/admin-guide/iostats.html
+

collectors/ipmiMetric.go

@@ -1,78 +1,116 @@
 package collectors
 
 import (
+	"bufio"
+	"bytes"
 	"encoding/json"
 	"errors"
+	"fmt"
+	"io"
 	"log"
-	"os"
 	"os/exec"
 	"strconv"
 	"strings"
 	"time"
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
 )
 
-const IPMITOOL_PATH = `/usr/bin/ipmitool`
-const IPMISENSORS_PATH = `/usr/sbin/ipmi-sensors`
-
-type IpmiCollectorConfig struct {
-	ExcludeDevices  []string `json:"exclude_devices"`
-	IpmitoolPath    string   `json:"ipmitool_path"`
-	IpmisensorsPath string   `json:"ipmisensors_path"`
-}
+const IPMISENSORS_PATH = `ipmi-sensors`
 
 type IpmiCollector struct {
 	metricCollector
-	tags    map[string]string
-	matches map[string]string
-	config  IpmiCollectorConfig
+	config struct {
+		ExcludeDevices  []string `json:"exclude_devices"`
+		IpmitoolPath    string   `json:"ipmitool_path"`
+		IpmisensorsPath string   `json:"ipmisensors_path"`
+	}
+	ipmitool    string
+	ipmisensors string
 }
 
 func (m *IpmiCollector) Init(config json.RawMessage) error {
+	// Check if already initialized
+	if m.init {
+		return nil
+	}
+
 	m.name = "IpmiCollector"
 	m.setup()
-	m.meta = map[string]string{"source": m.name, "group": "IPMI"}
+	m.parallel = true
+	m.meta = map[string]string{
+		"source": m.name,
+		"group":  "IPMI",
+	}
+	// default path to IPMI tools
+	m.config.IpmitoolPath = "ipmitool"
+	m.config.IpmisensorsPath = "ipmi-sensors"
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
 			return err
 		}
 	}
-	_, err1 := os.Stat(m.config.IpmitoolPath)
-	_, err2 := os.Stat(m.config.IpmisensorsPath)
-	if err1 != nil {
-		m.config.IpmitoolPath = ""
+	// Check if executables ipmitool or ipmisensors are found
+	p, err := exec.LookPath(m.config.IpmitoolPath)
+	if err == nil {
+		command := exec.Command(p)
+		err := command.Run()
+		if err != nil {
+			cclog.ComponentError(m.name, fmt.Sprintf("Failed to execute %s: %v", p, err.Error()))
+			m.ipmitool = ""
+		} else {
+			m.ipmitool = p
 		}
-	if err2 != nil {
-		m.config.IpmisensorsPath = ""
 	}
-	if err1 != nil && err2 != nil {
-		return errors.New("No IPMI reader found")
+	p, err = exec.LookPath(m.config.IpmisensorsPath)
+	if err == nil {
+		command := exec.Command(p)
+		err := command.Run()
+		if err != nil {
+			cclog.ComponentError(m.name, fmt.Sprintf("Failed to execute %s: %v", p, err.Error()))
+			m.ipmisensors = ""
+		} else {
+			m.ipmisensors = p
 		}
+	}
+	if len(m.ipmitool) == 0 && len(m.ipmisensors) == 0 {
+		return errors.New("no usable IPMI reader found")
+	}
+
 	m.init = true
 	return nil
 }
 
-func (m *IpmiCollector) readIpmiTool(cmd string, output chan lp.CCMetric) {
+func (m *IpmiCollector) readIpmiTool(cmd string, output chan lp.CCMessage) {
+
+	// Setup ipmitool command
 	command := exec.Command(cmd, "sensor")
-	command.Wait()
-	stdout, err := command.Output()
-	if err != nil {
-		log.Print(err)
+	stdout, _ := command.StdoutPipe()
+	errBuf := new(bytes.Buffer)
+	command.Stderr = errBuf
+
+	// start command
+	if err := command.Start(); err != nil {
+		cclog.ComponentError(
+			m.name,
+			fmt.Sprintf("readIpmiTool(): Failed to start command \"%s\": %v", command.String(), err),
+		)
 		return
 	}
 
-	ll := strings.Split(string(stdout), "\n")
-
-	for _, line := range ll {
-		lv := strings.Split(line, "|")
+	// Read command output
+	scanner := bufio.NewScanner(stdout)
+	for scanner.Scan() {
+		lv := strings.Split(scanner.Text(), "|")
 		if len(lv) < 3 {
 			continue
 		}
-		v, err := strconv.ParseFloat(strings.Trim(lv[1], " "), 64)
+		v, err := strconv.ParseFloat(strings.TrimSpace(lv[1]), 64)
 		if err == nil {
-			name := strings.ToLower(strings.Replace(strings.Trim(lv[0], " "), " ", "_", -1))
-			unit := strings.Trim(lv[2], " ")
+			name := strings.ToLower(strings.Replace(strings.TrimSpace(lv[0]), " ", "_", -1))
+			unit := strings.TrimSpace(lv[2])
 			if unit == "Volts" {
 				unit = "Volts"
 			} else if unit == "degrees C" {
@@ -83,16 +121,27 @@ func (m *IpmiCollector) readIpmiTool(cmd string, output chan lp.CCMetric) {
 				unit = "Watts"
 			}
 
-			y, err := lp.New(name, map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": v}, time.Now())
+			y, err := lp.NewMessage(name, map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": v}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", unit)
 				output <- y
 			}
 		}
 	}
+
+	// Wait for command end
+	if err := command.Wait(); err != nil {
+		errMsg, _ := io.ReadAll(errBuf)
+		cclog.ComponentError(
+			m.name,
+			fmt.Sprintf("readIpmiTool(): Failed to wait for the end of command \"%s\": %v\n", command.String(), err),
+		)
+		cclog.ComponentError(m.name, fmt.Sprintf("readIpmiTool(): command stderr: \"%s\"\n", strings.TrimSpace(string(errMsg))))
+		return
+	}
 }
 
-func (m *IpmiCollector) readIpmiSensors(cmd string, output chan lp.CCMetric) {
+func (m *IpmiCollector) readIpmiSensors(cmd string, output chan lp.CCMessage) {
 
 	command := exec.Command(cmd, "--comma-separated-output", "--sdr-cache-recreate")
 	command.Wait()
@@ -110,7 +159,7 @@ func (m *IpmiCollector) readIpmiSensors(cmd string, output chan lp.CCMetric) {
 			v, err := strconv.ParseFloat(lv[3], 64)
 			if err == nil {
 				name := strings.ToLower(strings.Replace(lv[1], " ", "_", -1))
-				y, err := lp.New(name, map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": v}, time.Now())
+				y, err := lp.NewMessage(name, map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": v}, time.Now())
 				if err == nil {
 					if len(lv) > 4 {
 						y.AddMeta("unit", lv[4])
@@ -122,18 +171,18 @@ func (m *IpmiCollector) readIpmiSensors(cmd string, output chan lp.CCMetric) {
 	}
 }
 
-func (m *IpmiCollector) Read(interval time.Duration, output chan lp.CCMetric) {
+func (m *IpmiCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+
+	// Check if already initialized
+	if !m.init {
+		return
+	}
+
 	if len(m.config.IpmitoolPath) > 0 {
-		_, err := os.Stat(m.config.IpmitoolPath)
-		if err == nil {
 		m.readIpmiTool(m.config.IpmitoolPath, output)
-		}
 	} else if len(m.config.IpmisensorsPath) > 0 {
-		_, err := os.Stat(m.config.IpmisensorsPath)
-		if err == nil {
 		m.readIpmiSensors(m.config.IpmisensorsPath, output)
 	}
-	}
 }
 
 func (m *IpmiCollector) Close() {

collectors/ipmiMetric.md

@@ -11,6 +11,3 @@
 The `ipmistat` collector reads data from `ipmitool` (`ipmitool sensor`) or `ipmi-sensors` (`ipmi-sensors --sdr-cache-recreate --comma-separated-output`).
 
 The metrics depend on the output of the underlying tools but contain temperature, power and energy metrics.
-
-
-

collectors/likwidMetric.md

@@ -1,7 +1,154 @@
 
 ## `likwid` collector
+
+The `likwid` collector is probably the most complicated collector. The LIKWID library is included as static library with *direct* access mode. The *direct* access mode is suitable if the daemon is executed by a root user. The static library does not contain the performance groups, so all information needs to be provided in the configuration.
+
 ```json
   "likwid": {
+    "force_overwrite" : false,
+    "invalid_to_zero" : false,
+    "liblikwid_path" : "/path/to/liblikwid.so",
+    "accessdaemon_path" : "/folder/that/contains/likwid-accessD",
+    "access_mode" : "direct or accessdaemon or perf_event",
+    "lockfile_path" : "/var/run/likwid.lock",
+    "eventsets": [
+      {
+        "events" : {
+          "COUNTER0": "EVENT0",
+          "COUNTER1": "EVENT1"
+        },
+        "metrics" : [
+          {
+            "name": "sum_01",
+            "calc": "COUNTER0 + COUNTER1",
+            "publish": false,
+            "unit": "myunit",
+            "type": "hwthread"
+          }
+        ]
+      }
+    ],
+    "globalmetrics" : [
+      {
+        "name": "global_sum",
+        "calc": "sum_01",
+        "publish": true,
+        "unit": "myunit",
+        "type": "hwthread"
+      }
+    ]
+  }
+```
+
+The `likwid` configuration consists of two parts, the `eventsets` and `globalmetrics`:
+
+- An event set list itself has two parts, the `events` and a set of derivable `metrics`. Each of the `events` is a `counter:event` pair in LIKWID's syntax. The `metrics` are a list of formulas to derive the metric value from the measurements of the `events`' values. Each metric has a name, the formula, a type and a publish flag. There is an optional `unit` field. Counter names can be used like variables in the formulas, so `PMC0+PMC1` sums the measurements for the both events configured in the counters `PMC0` and `PMC1`. You can optionally use `time` for the measurement time and `inverseClock` for `1.0/baseCpuFrequency`. The type tells the LikwidCollector whether it is a metric for each hardware thread (`cpu`) or each CPU socket (`socket`). You may specify a unit for the metric with `unit`. The last one is the publishing flag. It tells the LikwidCollector whether a metric should be sent to the router or is only used internally to compute a global metric.
+- The `globalmetrics` are metrics which require data from multiple event set measurements to be derived. The inputs are the metrics in the event sets. Similar to the metrics in the event sets, the global metrics are defined by a name, a formula, a type and a publish flag. See event set metrics for details. The only difference is that there is no access to the raw event measurements anymore but only to the metrics. Also `time` and `inverseClock` cannot be used anymore. So, the idea is to derive a metric in the `eventsets` section and reuse it in the `globalmetrics` part. If you need a metric only for deriving the global metrics, disable forwarding of the event set metrics (`"publish": false`). **Be aware** that the combination might be misleading because the "behavior" of a metric changes over time and the multiple measurements might count different computing phases. Similar to the metrics in the eventset, you can specify a metric unit with the `unit` field.
+
+Additional options:
+
+- `force_overwrite`: Same as setting `LIKWID_FORCE=1`. In case counters are already in-use, LIKWID overwrites their configuration to do its measurements
+- `invalid_to_zero`: In some cases, the calculations result in `NaN` or `Inf`. With this option, all `NaN` and `Inf` values are replaces with `0.0`. See below in [seperate section](./likwidMetric.md#invalid_to_zero-option)
+- `access_mode`: Specify LIKWID access mode: `direct` for direct register access as root user or `accessdaemon`. The access mode `perf_event` is current untested.
+- `accessdaemon_path`: Folder of the accessDaemon `likwid-accessD` (like `/usr/local/sbin`)
+- `liblikwid_path`: Location of `liblikwid.so` including file name like `/usr/local/lib/liblikwid.so`
+- `lockfile_path`: Location of LIKWID's lock file if multiple tools should access the hardware counters. Default `/var/run/likwid.lock`
+
+### Available metric types
+
+Hardware performance counters are scattered all over the system nowadays. A counter coveres a specific part of the system. While there are hardware thread specific counter for CPU cycles, instructions and so on, some others are specific for a whole CPU socket/package. To address that, the LikwidCollector provides the specification of a `type` for each metric.
+
+- `hwthread` : One metric per CPU hardware thread with the tags `"type" : "hwthread"` and `"type-id" : "$hwthread_id"`
+- `socket` : One metric per CPU socket/package with the tags `"type" : "socket"` and `"type-id" : "$socket_id"`
+
+**Note:** You cannot specify `socket` type for a metric that is measured at `hwthread` type, so some kind of expert knowledge or lookup work in the [Likwid Wiki](https://github.com/RRZE-HPC/likwid/wiki) is required. Get the type of each counter from the *Architecture* pages and as soon as one counter in a metric is socket-specific, the whole metric is socket-specific.
+
+As a guideline:
+
+- All counters `FIXCx`, `PMCy` and `TMAz` have the type `hwthread`
+- All counters names containing `BOX` have the type `socket`
+- All `PWRx` counters have type `socket`, except `"PWR1" : "RAPL_CORE_ENERGY"` has `hwthread` type
+- All `DFCx` counters have type `socket`
+
+### Help with the configuration
+
+The configuration for the `likwid` collector is quite complicated. Most users don't use LIKWID with the event:counter notation but rely on the performance groups defined by the LIKWID team for each architecture. In order to help with the `likwid` collector configuration, we included a script `scripts/likwid_perfgroup_to_cc_config.py` that creates the configuration of an `eventset` from a performance group (using a LIKWID installation in `$PATH`):
+
+```
+$ likwid-perfctr -i
+[...]
+short name: ICX
+[...]
+$ likwid-perfctr -a
+[...]
+MEM_DP
+MEM
+FLOPS_SP
+CLOCK
+[...]
+$ scripts/likwid_perfgroup_to_cc_config.py ICX MEM_DP
+{
+  "events": {
+    "FIXC0": "INSTR_RETIRED_ANY",
+    "FIXC1": "CPU_CLK_UNHALTED_CORE",
+    "..." : "..."
+  },
+  "metrics" : [
+    {
+      "calc": "time",
+      "name": "Runtime (RDTSC) [s]",
+      "publish": true,
+      "unit": "seconds"
+      "type": "hwthread"
+    },
+    {
+      "..." : "..."
+    }
+  ]
+}
+```
+
+You can copy this JSON and add it to the `eventsets` list. If you specify multiple event sets, you can add globally derived metrics in the extra `global_metrics` section with the metric names as variables.
+
+### Mixed usage between daemon and users
+
+LIKWID checks the file `/var/run/likwid.lock` before performing any interfering operations. Who is allowed to access the counters is determined by the owner of the file. If it does not exist, it is created for the current user. So, if you want to temporarly allow counter access to a user (e.g. in a job):
+
+Before (SLURM prolog, ...)
+
+```bash
+chown $JOBUSER /var/run/likwid.lock
+```
+
+After (SLURM epilog, ...)
+
+```bash
+chown $CCUSER /var/run/likwid.lock
+```
+
+### `invalid_to_zero` option
+
+In some cases LIKWID returns `0.0` for some events that are further used in processing and maybe used as divisor in a calculation. After evaluation of a metric, the result might be `NaN` or `+-Inf`. These resulting metrics are commonly not created and forwarded to the router because the [InfluxDB line protocol](https://docs.influxdata.com/influxdb/cloud/reference/syntax/line-protocol/#float) does not support these special floating-point values. If you want to have them sent, this option forces these metric values to be `0.0` instead.
+
+One might think this does not happen often but often used metrics in the world of performance engineering like Instructions-per-Cycle (IPC) or more frequently the actual CPU clock are derived with events like `CPU_CLK_UNHALTED_CORE` (Intel) which do not increment in halted state (as the name implies). In there are different power management systems in a chip which can cause a hardware thread to go in such a state. Moreover, if no cycles are executed by the core, also many other events are not incremented as well (like `INSTR_RETIRED_ANY` for retired instructions and part of IPC).
+
+### `lockfile_path` option
+LIKWID can be configured with a lock file with which the access to the performance monitoring registers can be disabled (only the owner of the lock file is allowed to access the registers). When the `lockfile_path` option is set, the collector subscribes to changes to this file to stop monitoring if the owner of the lock file changes. This feature is useful when users should be able to perform own hardware performance counter measurements through LIKWID or any other tool.
+
+### `send_*_total values` option
+
+- `send_core_total_values`: Metrics, which are usually collected on a per hardware thread basis, are additionally summed up per CPU core.
+- `send_socket_total_values` Metrics, which are usually collected on a per hardware thread basis, are additionally summed up per CPU socket.
+- `send_node_total_values` Metrics, which are usually collected on a per hardware thread basis, are additionally summed up per node.
+
+### Example configuration
+
+#### AMD Zen3
+
+```json
+  "likwid": {
+    "force_overwrite" : false,
+    "invalid_to_zero" : false,
     "eventsets": [
       {
         "events": {
@@ -20,25 +167,28 @@
           {
             "name": "ipc",
             "calc": "PMC0/PMC1",
-            "socket_scope": false,
+            "type": "hwthread",
             "publish": true
           },
           {
             "name": "flops_any",
             "calc": "0.000001*PMC2/time",
-            "socket_scope": false,
+            "unit": "MFlops/s",
+            "type": "hwthread",
             "publish": true
           },
           {
-            "name": "clock_mhz",
+            "name": "clock",
             "calc": "0.000001*(FIXC1/FIXC2)/inverseClock",
-            "socket_scope": false,
+            "type": "hwthread",
+            "unit": "MHz",
             "publish": true
           },
           {
             "name": "mem1",
             "calc": "0.000001*(DFC0+DFC1+DFC2+DFC3)*64.0/time",
-            "socket_scope": true,
+            "unit": "Mbyte/s",
+            "type": "socket",
             "publish": false
           }
         ]
@@ -56,19 +206,22 @@
           {
             "name": "pwr_core",
             "calc": "PWR0/time",
-            "socket_scope": false,
+            "unit": "Watt"
+            "type": "socket",
             "publish": true
           },
           {
             "name": "pwr_pkg",
             "calc": "PWR1/time",
-            "socket_scope": true,
+            "type": "socket",
+            "unit": "Watt"
             "publish": true
           },
           {
             "name": "mem2",
             "calc": "0.000001*(DFC0+DFC1+DFC2+DFC3)*64.0/time",
-            "socket_scope": true,
+            "unit": "Mbyte/s",
+            "type": "socket",
             "publish": false
           }
         ]
@@ -78,18 +231,20 @@
       {
         "name": "mem_bw",
         "calc": "mem1+mem2",
-        "socket_scope": true,
+        "type": "socket",
+        "unit": "Mbyte/s",
         "publish": true
       }
     ]
   }
 ```
 
-_Example config suitable for AMD Zen3_
+### How to get the eventsets and metrics from LIKWID
 
 The `likwid` collector reads hardware performance counters at a **hwthread** and **socket** level. The configuration looks quite complicated but it is basically copy&paste from [LIKWID's performance groups](https://github.com/RRZE-HPC/likwid/tree/master/groups). The collector made multiple iterations and tried to use the performance groups but it lacked flexibility. The current way of configuration provides most flexibility.
 
 The logic is as following: There are multiple eventsets, each consisting of a list of counters+events and a list of metrics. If you compare a common performance group with the example setting above, there is not much difference:
+
 ```
 EVENTSET                         ->   "events": {
 FIXC1 ACTUAL_CPU_CLOCK           ->     "FIXC1": "ACTUAL_CPU_CLOCK",
@@ -108,12 +263,10 @@ METRICS                          ->   "metrics": [
 IPC   PMC0/PMC1                  ->     {
                                  ->       "name" : "IPC",
                                  ->       "calc" : "PMC0/PMC1",
-                                 ->       "socket_scope": false,
+                                 ->       "type": "hwthread",
                                  ->       "publish": true
                                  ->     }
                                  ->   ]
 ```
 
-The `socket_scope` option tells whether it is submitted per socket or per hwthread. If a metric is only used for internal calculations, you can set `publish = false`.
-
-Since some metrics can only be gathered in multiple measurements (like the memory bandwidth on AMD Zen3 chips), configure multiple eventsets like in the example config and use the `globalmetrics` section to combine them. **Be aware** that the combination might be misleading because the "behavior" of a metric changes over time and the multiple measurements might count different computing phases.
+The script `scripts/likwid_perfgroup_to_cc_config.py` might help you.

collectors/loadavgMetric.go

@@ -2,29 +2,39 @@ package collectors
 
 import (
 	"encoding/json"
-	"io/ioutil"
+	"fmt"
+	"os"
 	"strconv"
 	"strings"
 	"time"
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 )
 
-const LOADAVGFILE = `/proc/loadavg`
-
-type LoadavgCollectorConfig struct {
-	ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
-}
+// LoadavgCollector collects:
+// * load average of last 1, 5 & 15 minutes
+// * number of processes currently runnable
+// * total number of processes in system
+//
+// See: https://www.kernel.org/doc/html/latest/filesystems/proc.html
+const LOADAVGFILE = "/proc/loadavg"
 
 type LoadavgCollector struct {
 	metricCollector
 	tags         map[string]string
 	load_matches []string
+	load_skips   []bool
 	proc_matches []string
-	config       LoadavgCollectorConfig
+	proc_skips   []bool
+	config       struct {
+		ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
+	}
 }
 
 func (m *LoadavgCollector) Init(config json.RawMessage) error {
 	m.name = "LoadavgCollector"
+	m.parallel = true
 	m.setup()
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
@@ -32,46 +42,80 @@ func (m *LoadavgCollector) Init(config json.RawMessage) error {
 			return err
 		}
 	}
-	m.meta = map[string]string{"source": m.name, "group": "LOAD"}
+	m.meta = map[string]string{
+		"source": m.name,
+		"group":  "LOAD"}
 	m.tags = map[string]string{"type": "node"}
-	m.load_matches = []string{"load_one", "load_five", "load_fifteen"}
-	m.proc_matches = []string{"proc_run", "proc_total"}
+	m.load_matches = []string{
+		"load_one",
+		"load_five",
+		"load_fifteen"}
+	m.load_skips = make([]bool, len(m.load_matches))
+	m.proc_matches = []string{
+		"proc_run",
+		"proc_total"}
+	m.proc_skips = make([]bool, len(m.proc_matches))
+
+	for i, name := range m.load_matches {
+		_, m.load_skips[i] = stringArrayContains(m.config.ExcludeMetrics, name)
+	}
+	for i, name := range m.proc_matches {
+		_, m.proc_skips[i] = stringArrayContains(m.config.ExcludeMetrics, name)
+	}
 	m.init = true
 	return nil
 }
 
-func (m *LoadavgCollector) Read(interval time.Duration, output chan lp.CCMetric) {
-	var skip bool
+func (m *LoadavgCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 	if !m.init {
 		return
 	}
-	buffer, err := ioutil.ReadFile(string(LOADAVGFILE))
-
+	buffer, err := os.ReadFile(LOADAVGFILE)
 	if err != nil {
+		cclog.ComponentError(
+			m.name,
+			fmt.Sprintf("Read(): Failed to read file '%s': %v", LOADAVGFILE, err))
 		return
 	}
+	now := time.Now()
 
+	// Load metrics
 	ls := strings.Split(string(buffer), ` `)
 	for i, name := range m.load_matches {
 		x, err := strconv.ParseFloat(ls[i], 64)
+		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert '%s' to float64: %v", ls[i], err))
+			continue
+		}
+		if m.load_skips[i] {
+			continue
+		}
+		y, err := lp.NewMessage(name, m.tags, m.meta, map[string]interface{}{"value": x}, now)
 		if err == nil {
-			_, skip = stringArrayContains(m.config.ExcludeMetrics, name)
-			y, err := lp.New(name, m.tags, m.meta, map[string]interface{}{"value": float64(x)}, time.Now())
-			if err == nil && !skip {
 			output <- y
 		}
 	}
-	}
+
+	// Process metrics
 	lv := strings.Split(ls[3], `/`)
 	for i, name := range m.proc_matches {
-		x, err := strconv.ParseFloat(lv[i], 64)
+		x, err := strconv.ParseInt(lv[i], 10, 64)
+		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert '%s' to float64: %v", lv[i], err))
+			continue
+		}
+		if m.proc_skips[i] {
+			continue
+		}
+		y, err := lp.NewMessage(name, m.tags, m.meta, map[string]interface{}{"value": x}, now)
 		if err == nil {
-			_, skip = stringArrayContains(m.config.ExcludeMetrics, name)
-			y, err := lp.New(name, m.tags, m.meta, map[string]interface{}{"value": float64(x)}, time.Now())
-			if err == nil && !skip {
 			output <- y
 		}
-		}
+
 	}
 }
 

collectors/lustreMetric.go

@@ -3,32 +3,292 @@ package collectors
 import (
 	"encoding/json"
 	"errors"
-	"io/ioutil"
-	"log"
+	"fmt"
+	"os/exec"
+	"os/user"
 	"strconv"
 	"strings"
 	"time"
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
 )
 
-const LUSTREFILE = `/proc/fs/lustre/llite/lnec-XXXXXX/stats`
+const LUSTRE_SYSFS = `/sys/fs/lustre`
+const LCTL_CMD = `lctl`
+const LCTL_OPTION = `get_param`
 
 type LustreCollectorConfig struct {
-	Procfiles      []string `json:"procfiles"`
-	ExcludeMetrics []string `json:"exclude_metrics"`
+	LCtlCommand        string   `json:"lctl_command,omitempty"`
+	ExcludeMetrics     []string `json:"exclude_metrics,omitempty"`
+	Sudo               bool     `json:"use_sudo,omitempty"`
+	SendAbsoluteValues bool     `json:"send_abs_values,omitempty"`
+	SendDerivedValues  bool     `json:"send_derived_values,omitempty"`
+	SendDiffValues     bool     `json:"send_diff_values,omitempty"`
+}
+
+type LustreMetricDefinition struct {
+	name       string
+	lineprefix string
+	lineoffset int
+	unit       string
+	calc       string
 }
 
 type LustreCollector struct {
 	metricCollector
 	tags          map[string]string
-	matches map[string]map[string]int
-	devices []string
 	config        LustreCollectorConfig
+	lctl          string
+	sudoCmd       string
+	lastTimestamp time.Time                   // Store time stamp of last tick to derive bandwidths
+	definitions   []LustreMetricDefinition    // Combined list without excluded metrics
+	stats         map[string]map[string]int64 // Data for last value per device and metric
+}
+
+func (m *LustreCollector) getDeviceDataCommand(device string) []string {
+	var command *exec.Cmd
+	statsfile := fmt.Sprintf("llite.%s.stats", device)
+	if m.config.Sudo {
+		command = exec.Command(m.sudoCmd, m.lctl, LCTL_OPTION, statsfile)
+	} else {
+		command = exec.Command(m.lctl, LCTL_OPTION, statsfile)
+	}
+	command.Wait()
+	stdout, _ := command.Output()
+	return strings.Split(string(stdout), "\n")
+}
+
+func (m *LustreCollector) getDevices() []string {
+	devices := make([]string, 0)
+
+	// //Version reading devices from sysfs
+	// globPattern := filepath.Join(LUSTRE_SYSFS, "llite/*/stats")
+	// files, err := filepath.Glob(globPattern)
+	// if err != nil {
+	// 	return devices
+	// }
+	// for _, f := range files {
+	// 	pathlist := strings.Split(f, "/")
+	// 	devices = append(devices, pathlist[4])
+	// }
+
+	data := m.getDeviceDataCommand("*")
+
+	for _, line := range data {
+		if strings.HasPrefix(line, "llite") {
+			linefields := strings.Split(line, ".")
+			if len(linefields) > 2 {
+				devices = append(devices, linefields[1])
+			}
+		}
+	}
+	return devices
+}
+
+func getMetricData(lines []string, prefix string, offset int) (int64, error) {
+	for _, line := range lines {
+		if strings.HasPrefix(line, prefix) {
+			lf := strings.Fields(line)
+			return strconv.ParseInt(lf[offset], 0, 64)
+		}
+	}
+	return 0, errors.New("no such line in data")
+}
+
+// //Version reading the stats data of a device from sysfs
+// func (m *LustreCollector) getDeviceDataSysfs(device string) []string {
+// 	llitedir := filepath.Join(LUSTRE_SYSFS, "llite")
+// 	devdir := filepath.Join(llitedir, device)
+// 	statsfile := filepath.Join(devdir, "stats")
+// 	buffer, err := os.ReadFile(statsfile)
+// 	if err != nil {
+// 		return make([]string, 0)
+// 	}
+// 	return strings.Split(string(buffer), "\n")
+// }
+
+var LustreAbsMetrics = []LustreMetricDefinition{
+	{
+		name:       "lustre_read_requests",
+		lineprefix: "read_bytes",
+		lineoffset: 1,
+		unit:       "requests",
+		calc:       "none",
+	},
+	{
+		name:       "lustre_write_requests",
+		lineprefix: "write_bytes",
+		lineoffset: 1,
+		unit:       "requests",
+		calc:       "none",
+	},
+	{
+		name:       "lustre_read_bytes",
+		lineprefix: "read_bytes",
+		lineoffset: 6,
+		unit:       "bytes",
+		calc:       "none",
+	},
+	{
+		name:       "lustre_write_bytes",
+		lineprefix: "write_bytes",
+		lineoffset: 6,
+		unit:       "bytes",
+		calc:       "none",
+	},
+	{
+		name:       "lustre_open",
+		lineprefix: "open",
+		lineoffset: 1,
+		unit:       "",
+		calc:       "none",
+	},
+	{
+		name:       "lustre_close",
+		lineprefix: "close",
+		lineoffset: 1,
+		unit:       "",
+		calc:       "none",
+	},
+	{
+		name:       "lustre_setattr",
+		lineprefix: "setattr",
+		lineoffset: 1,
+		unit:       "",
+		calc:       "none",
+	},
+	{
+		name:       "lustre_getattr",
+		lineprefix: "getattr",
+		lineoffset: 1,
+		unit:       "",
+		calc:       "none",
+	},
+	{
+		name:       "lustre_statfs",
+		lineprefix: "statfs",
+		lineoffset: 1,
+		unit:       "",
+		calc:       "none",
+	},
+	{
+		name:       "lustre_inode_permission",
+		lineprefix: "inode_permission",
+		lineoffset: 1,
+		unit:       "",
+		calc:       "none",
+	},
+}
+
+var LustreDiffMetrics = []LustreMetricDefinition{
+	{
+		name:       "lustre_read_requests_diff",
+		lineprefix: "read_bytes",
+		lineoffset: 1,
+		unit:       "requests",
+		calc:       "difference",
+	},
+	{
+		name:       "lustre_write_requests_diff",
+		lineprefix: "write_bytes",
+		lineoffset: 1,
+		unit:       "requests",
+		calc:       "difference",
+	},
+	{
+		name:       "lustre_read_bytes_diff",
+		lineprefix: "read_bytes",
+		lineoffset: 6,
+		unit:       "bytes",
+		calc:       "difference",
+	},
+	{
+		name:       "lustre_write_bytes_diff",
+		lineprefix: "write_bytes",
+		lineoffset: 6,
+		unit:       "bytes",
+		calc:       "difference",
+	},
+	{
+		name:       "lustre_open_diff",
+		lineprefix: "open",
+		lineoffset: 1,
+		unit:       "",
+		calc:       "difference",
+	},
+	{
+		name:       "lustre_close_diff",
+		lineprefix: "close",
+		lineoffset: 1,
+		unit:       "",
+		calc:       "difference",
+	},
+	{
+		name:       "lustre_setattr_diff",
+		lineprefix: "setattr",
+		lineoffset: 1,
+		unit:       "",
+		calc:       "difference",
+	},
+	{
+		name:       "lustre_getattr_diff",
+		lineprefix: "getattr",
+		lineoffset: 1,
+		unit:       "",
+		calc:       "difference",
+	},
+	{
+		name:       "lustre_statfs_diff",
+		lineprefix: "statfs",
+		lineoffset: 1,
+		unit:       "",
+		calc:       "difference",
+	},
+	{
+		name:       "lustre_inode_permission_diff",
+		lineprefix: "inode_permission",
+		lineoffset: 1,
+		unit:       "",
+		calc:       "difference",
+	},
+}
+
+var LustreDeriveMetrics = []LustreMetricDefinition{
+	{
+		name:       "lustre_read_requests_rate",
+		lineprefix: "read_bytes",
+		lineoffset: 1,
+		unit:       "requests/sec",
+		calc:       "derivative",
+	},
+	{
+		name:       "lustre_write_requests_rate",
+		lineprefix: "write_bytes",
+		lineoffset: 1,
+		unit:       "requests/sec",
+		calc:       "derivative",
+	},
+	{
+		name:       "lustre_read_bw",
+		lineprefix: "read_bytes",
+		lineoffset: 6,
+		unit:       "bytes/sec",
+		calc:       "derivative",
+	},
+	{
+		name:       "lustre_write_bw",
+		lineprefix: "write_bytes",
+		lineoffset: 6,
+		unit:       "bytes/sec",
+		calc:       "derivative",
+	},
 }
 
 func (m *LustreCollector) Init(config json.RawMessage) error {
 	var err error
 	m.name = "LustreCollector"
+	m.parallel = true
 	if len(config) > 0 {
 		err = json.Unmarshal(config, &m.config)
 		if err != nil {
@@ -38,70 +298,132 @@ func (m *LustreCollector) Init(config json.RawMessage) error {
 	m.setup()
 	m.tags = map[string]string{"type": "node"}
 	m.meta = map[string]string{"source": m.name, "group": "Lustre"}
-	m.matches = map[string]map[string]int{"read_bytes": {"read_bytes": 6, "read_requests": 1},
-		"write_bytes":      {"write_bytes": 6, "write_requests": 1},
-		"open":             {"open": 1},
-		"close":            {"close": 1},
-		"setattr":          {"setattr": 1},
-		"getattr":          {"getattr": 1},
-		"statfs":           {"statfs": 1},
-		"inode_permission": {"inode_permission": 1}}
-	m.devices = make([]string, 0)
-	for _, p := range m.config.Procfiles {
-		_, err := ioutil.ReadFile(p)
-		if err == nil {
-			m.devices = append(m.devices, p)
-		} else {
-			log.Print(err.Error())
-			continue
+
+	// Lustre file system statistics can only be queried by user root
+	// or with password-less sudo
+	if !m.config.Sudo {
+		user, err := user.Current()
+		if err != nil {
+			cclog.ComponentError(m.name, "Failed to get current user:", err.Error())
+			return err
 		}
+		if user.Uid != "0" {
+			cclog.ComponentError(m.name, "Lustre file system statistics can only be queried by user root")
+			return err
+		}
+	} else {
+		p, err := exec.LookPath("sudo")
+		if err != nil {
+			cclog.ComponentError(m.name, "Cannot find 'sudo'")
+			return err
+		}
+		m.sudoCmd = p
 	}
 
-	if len(m.devices) == 0 {
-		return errors.New("No metrics to collect")
+	p, err := exec.LookPath(m.config.LCtlCommand)
+	if err != nil {
+		p, err = exec.LookPath(LCTL_CMD)
+		if err != nil {
+			return err
 		}
+	}
+	m.lctl = p
+
+	m.definitions = []LustreMetricDefinition{}
+	if m.config.SendAbsoluteValues {
+		for _, def := range LustreAbsMetrics {
+			if _, skip := stringArrayContains(m.config.ExcludeMetrics, def.name); !skip {
+				m.definitions = append(m.definitions, def)
+			}
+		}
+	}
+	if m.config.SendDiffValues {
+		for _, def := range LustreDiffMetrics {
+			if _, skip := stringArrayContains(m.config.ExcludeMetrics, def.name); !skip {
+				m.definitions = append(m.definitions, def)
+			}
+		}
+	}
+	if m.config.SendDerivedValues {
+		for _, def := range LustreDeriveMetrics {
+			if _, skip := stringArrayContains(m.config.ExcludeMetrics, def.name); !skip {
+				m.definitions = append(m.definitions, def)
+			}
+		}
+	}
+	if len(m.definitions) == 0 {
+		return errors.New("no metrics to collect")
+	}
+
+	devices := m.getDevices()
+	if len(devices) == 0 {
+		return errors.New("no Lustre devices found")
+	}
+	m.stats = make(map[string]map[string]int64)
+	for _, d := range devices {
+		m.stats[d] = make(map[string]int64)
+		data := m.getDeviceDataCommand(d)
+		for _, def := range m.definitions {
+			x, err := getMetricData(data, def.lineprefix, def.lineoffset)
+			if err == nil {
+				m.stats[d][def.name] = x
+			} else {
+				m.stats[d][def.name] = 0
+			}
+		}
+	}
+	m.lastTimestamp = time.Now()
 	m.init = true
 	return nil
 }
 
-func (m *LustreCollector) Read(interval time.Duration, output chan lp.CCMetric) {
+func (m *LustreCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 	if !m.init {
 		return
 	}
-	for _, p := range m.devices {
-		buffer, err := ioutil.ReadFile(p)
-
-		if err != nil {
-			log.Print(err)
-			return
-		}
-
-		for _, line := range strings.Split(string(buffer), "\n") {
-			lf := strings.Fields(line)
-			if len(lf) > 1 {
-				for match, fields := range m.matches {
-					if lf[0] == match {
-						for name, idx := range fields {
-							_, skip := stringArrayContains(m.config.ExcludeMetrics, name)
-							if skip {
-								continue
-							}
-							x, err := strconv.ParseInt(lf[idx], 0, 64)
+	now := time.Now()
+	tdiff := now.Sub(m.lastTimestamp)
+	for device, devData := range m.stats {
+		data := m.getDeviceDataCommand(device)
+		for _, def := range m.definitions {
+			var use_x int64
+			var err error
+			var y lp.CCMessage
+			x, err := getMetricData(data, def.lineprefix, def.lineoffset)
 			if err == nil {
-								y, err := lp.New(name, m.tags, m.meta, map[string]interface{}{"value": x}, time.Now())
+				use_x = x
+			} else {
+				use_x = devData[def.name]
+			}
+			var value interface{}
+			switch def.calc {
+			case "none":
+				value = use_x
+				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
+			case "difference":
+				value = use_x - devData[def.name]
+				if value.(int64) < 0 {
+					value = 0
+				}
+				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
+			case "derivative":
+				value = float64(use_x-devData[def.name]) / tdiff.Seconds()
+				if value.(float64) < 0 {
+					value = 0
+				}
+				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
+			}
 			if err == nil {
-									if strings.Contains(name, "byte") {
-										y.AddMeta("unit", "Byte")
+				y.AddTag("device", device)
+				if len(def.unit) > 0 {
+					y.AddMeta("unit", def.unit)
 				}
 				output <- y
 			}
+			devData[def.name] = use_x
 		}
 	}
-					}
-				}
-			}
-		}
-	}
+	m.lastTimestamp = now
 }
 
 func (m *LustreCollector) Close() {

collectors/lustreMetric.md

@@ -3,27 +3,44 @@
 
 ```json
   "lustrestat": {
-    "procfiles" : [
-      "/proc/fs/lustre/llite/lnec-XXXXXX/stats"
-    ],
+    "lctl_command": "/path/to/lctl",
     "exclude_metrics": [
       "setattr",
       "getattr"
-    ]
+    ],
+    "send_abs_values" : true,
+    "send_derived_values" : true,
+    "send_diff_values": true,
+    "use_sudo": false
   }
 ```
 
-The `lustrestat` collector reads from the procfs stat files for Lustre like `/proc/fs/lustre/llite/lnec-XXXXXX/stats`.
+The `lustrestat` collector uses the `lctl` application with the `get_param` option to get all `llite` metrics (Lustre client). The `llite` metrics are only available for root users. If password-less sudo is configured, you can enable `sudo` in the configuration.
 
 Metrics:
-* `read_bytes`
-* `read_requests`
-* `write_bytes`
-* `write_requests`
-* `open`
-* `close`
-* `getattr`
-* `setattr`
-* `statfs`
-* `inode_permission`
+* `lustre_read_bytes` (unit `bytes`)
+* `lustre_read_requests` (unit `requests`)
+* `lustre_write_bytes` (unit `bytes`)
+* `lustre_write_requests` (unit `requests`)
+* `lustre_open`
+* `lustre_close`
+* `lustre_getattr`
+* `lustre_setattr`
+* `lustre_statfs`
+* `lustre_inode_permission`
+* `lustre_read_bw` (if `send_derived_values == true`, unit `bytes/sec`)
+* `lustre_write_bw` (if `send_derived_values == true`, unit `bytes/sec`)
+* `lustre_read_requests_rate` (if `send_derived_values == true`, unit `requests/sec`)
+* `lustre_write_requests_rate` (if `send_derived_values == true`, unit `requests/sec`)
+* `lustre_read_bytes_diff` (if `send_diff_values == true`, unit `bytes`)
+* `lustre_read_requests_diff` (if `send_diff_values == true`, unit `requests`)
+* `lustre_write_bytes_diff` (if `send_diff_values == true`, unit `bytes`)
+* `lustre_write_requests_diff` (if `send_diff_values == true`, unit `requests`)
+* `lustre_open_diff` (if `send_diff_values == true`)
+* `lustre_close_diff` (if `send_diff_values == true`)
+* `lustre_getattr_diff` (if `send_diff_values == true`)
+* `lustre_setattr_diff` (if `send_diff_values == true`)
+* `lustre_statfs_diff` (if `send_diff_values == true`)
+* `lustre_inode_permission_diff` (if `send_diff_values == true`)
 
+This collector adds an `device` tag.

collectors/memstatMetric.go

@@ -1,22 +1,33 @@
 package collectors
 
 import (
+	"bufio"
 	"encoding/json"
 	"errors"
 	"fmt"
-	"io/ioutil"
-	"log"
+	"os"
+	"path/filepath"
+	"regexp"
 	"strconv"
 	"strings"
 	"time"
 
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
 )
 
-const MEMSTATFILE = `/proc/meminfo`
+const MEMSTATFILE = "/proc/meminfo"
+const NUMA_MEMSTAT_BASE = "/sys/devices/system/node"
 
 type MemstatCollectorConfig struct {
 	ExcludeMetrics []string `json:"exclude_metrics"`
+	NodeStats      bool     `json:"node_stats,omitempty"`
+	NumaStats      bool     `json:"numa_stats,omitempty"`
+}
+
+type MemstatCollectorNode struct {
+	file string
+	tags map[string]string
 }
 
 type MemstatCollector struct {
@@ -25,22 +36,67 @@ type MemstatCollector struct {
 	tags        map[string]string
 	matches     map[string]string
 	config      MemstatCollectorConfig
+	nodefiles   map[int]MemstatCollectorNode
+	sendMemUsed bool
+}
+
+type MemstatStats struct {
+	value float64
+	unit  string
+}
+
+func getStats(filename string) map[string]MemstatStats {
+	stats := make(map[string]MemstatStats)
+	file, err := os.Open(filename)
+	if err != nil {
+		cclog.Error(err.Error())
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		linefields := strings.Fields(line)
+		if len(linefields) == 3 {
+			v, err := strconv.ParseFloat(linefields[1], 64)
+			if err == nil {
+				stats[strings.Trim(linefields[0], ":")] = MemstatStats{
+					value: v,
+					unit:  linefields[2],
+				}
+			}
+		} else if len(linefields) == 5 {
+			v, err := strconv.ParseFloat(linefields[3], 64)
+			if err == nil {
+				cclog.ComponentDebug("getStats", strings.Trim(linefields[2], ":"), v, linefields[4])
+				stats[strings.Trim(linefields[2], ":")] = MemstatStats{
+					value: v,
+					unit:  linefields[4],
+				}
+			}
+		}
+	}
+	return stats
 }
 
 func (m *MemstatCollector) Init(config json.RawMessage) error {
 	var err error
 	m.name = "MemstatCollector"
+	m.parallel = true
+	m.config.NodeStats = true
+	m.config.NumaStats = false
 	if len(config) > 0 {
 		err = json.Unmarshal(config, &m.config)
 		if err != nil {
 			return err
 		}
 	}
-	m.meta = map[string]string{"source": m.name, "group": "Memory", "unit": "kByte"}
+	m.meta = map[string]string{"source": m.name, "group": "Memory"}
 	m.stats = make(map[string]int64)
 	m.matches = make(map[string]string)
 	m.tags = map[string]string{"type": "node"}
-	matches := map[string]string{`MemTotal`: "mem_total",
+	matches := map[string]string{
+		"MemTotal":     "mem_total",
 		"SwapTotal":    "swap_total",
 		"SReclaimable": "mem_sreclaimable",
 		"Slab":         "mem_slab",
@@ -48,79 +104,129 @@ func (m *MemstatCollector) Init(config json.RawMessage) error {
 		"Buffers":      "mem_buffers",
 		"Cached":       "mem_cached",
 		"MemAvailable": "mem_available",
-		"SwapFree":     "swap_free"}
+		"SwapFree":     "swap_free",
+		"MemShared":    "mem_shared",
+	}
 	for k, v := range matches {
 		_, skip := stringArrayContains(m.config.ExcludeMetrics, k)
 		if !skip {
 			m.matches[k] = v
 		}
 	}
+	m.sendMemUsed = false
+	if _, skip := stringArrayContains(m.config.ExcludeMetrics, "mem_used"); !skip {
+		m.sendMemUsed = true
+	}
 	if len(m.matches) == 0 {
-		return errors.New("No metrics to collect")
+		return errors.New("no metrics to collect")
 	}
 	m.setup()
-	_, err = ioutil.ReadFile(string(MEMSTATFILE))
-	if err == nil {
-		m.init = true
+
+	if m.config.NodeStats {
+		if stats := getStats(MEMSTATFILE); len(stats) == 0 {
+			return fmt.Errorf("cannot read data from file %s", MEMSTATFILE)
 		}
+	}
+
+	if m.config.NumaStats {
+		globPattern := filepath.Join(NUMA_MEMSTAT_BASE, "node[0-9]*", "meminfo")
+		regex := regexp.MustCompile(filepath.Join(NUMA_MEMSTAT_BASE, "node(\\d+)", "meminfo"))
+		files, err := filepath.Glob(globPattern)
+		if err == nil {
+			m.nodefiles = make(map[int]MemstatCollectorNode)
+			for _, f := range files {
+				if stats := getStats(f); len(stats) == 0 {
+					return fmt.Errorf("cannot read data from file %s", f)
+				}
+				rematch := regex.FindStringSubmatch(f)
+				if len(rematch) == 2 {
+					id, err := strconv.Atoi(rematch[1])
+					if err == nil {
+						f := MemstatCollectorNode{
+							file: f,
+							tags: map[string]string{
+								"type":    "memoryDomain",
+								"type-id": fmt.Sprintf("%d", id),
+							},
+						}
+						m.nodefiles[id] = f
+					}
+				}
+			}
+		}
+	}
+	m.init = true
 	return err
 }
 
-func (m *MemstatCollector) Read(interval time.Duration, output chan lp.CCMetric) {
+func (m *MemstatCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 	if !m.init {
 		return
 	}
 
-	buffer, err := ioutil.ReadFile(string(MEMSTATFILE))
-	if err != nil {
-		log.Print(err)
-		return
-	}
-
-	ll := strings.Split(string(buffer), "\n")
-	for _, line := range ll {
-		ls := strings.Split(line, `:`)
-		if len(ls) > 1 {
-			lv := strings.Fields(ls[1])
-			m.stats[ls[0]], err = strconv.ParseInt(lv[0], 0, 64)
-		}
-	}
-
-	if _, exists := m.stats[`MemTotal`]; !exists {
-		err = errors.New("Parse error")
-		log.Print(err)
-		return
-	}
-
+	sendStats := func(stats map[string]MemstatStats, tags map[string]string) {
 		for match, name := range m.matches {
-		if _, exists := m.stats[match]; !exists {
-			err = fmt.Errorf("Parse error for %s : %s", match, name)
-			log.Print(err)
-			continue
-		}
-		y, err := lp.New(name, m.tags, m.meta, map[string]interface{}{"value": int(float64(m.stats[match]) * 1.0e-3)}, time.Now())
-		if err == nil {
-			output <- y
+			var value float64 = 0
+			var unit string = ""
+			if v, ok := stats[match]; ok {
+				value = v.value
+				if len(v.unit) > 0 {
+					unit = v.unit
 				}
 			}
 
-	if _, free := m.stats[`MemFree`]; free {
-		if _, buffers := m.stats[`Buffers`]; buffers {
-			if _, cached := m.stats[`Cached`]; cached {
-				memUsed := m.stats[`MemTotal`] - (m.stats[`MemFree`] + m.stats[`Buffers`] + m.stats[`Cached`])
-				_, skip := stringArrayContains(m.config.ExcludeMetrics, "mem_used")
-				y, err := lp.New("mem_used", m.tags, m.meta, map[string]interface{}{"value": int(float64(memUsed) * 1.0e-3)}, time.Now())
-				if err == nil && !skip {
+			y, err := lp.NewMessage(name, tags, m.meta, map[string]interface{}{"value": value}, time.Now())
+			if err == nil {
+				if len(unit) > 0 {
+					y.AddMeta("unit", unit)
+				}
+				output <- y
+			}
+		}
+		if m.sendMemUsed {
+			memUsed := 0.0
+			unit := ""
+			if totalVal, total := stats["MemTotal"]; total {
+				if freeVal, free := stats["MemFree"]; free {
+					memUsed = totalVal.value - freeVal.value
+					if len(totalVal.unit) > 0 {
+						unit = totalVal.unit
+					} else if len(freeVal.unit) > 0 {
+						unit = freeVal.unit
+					}
+					if bufVal, buffers := stats["Buffers"]; buffers {
+						memUsed -= bufVal.value
+						if len(bufVal.unit) > 0 && len(unit) == 0 {
+							unit = bufVal.unit
+						}
+						if cacheVal, cached := stats["Cached"]; cached {
+							memUsed -= cacheVal.value
+							if len(cacheVal.unit) > 0 && len(unit) == 0 {
+								unit = cacheVal.unit
+							}
+						}
+					}
+				}
+			}
+			y, err := lp.NewMessage("mem_used", tags, m.meta, map[string]interface{}{"value": memUsed}, time.Now())
+			if err == nil {
+				if len(unit) > 0 {
+					y.AddMeta("unit", unit)
+				}
 				output <- y
 			}
 		}
 	}
+
+	if m.config.NodeStats {
+		nodestats := getStats(MEMSTATFILE)
+		sendStats(nodestats, m.tags)
 	}
-	if _, found := m.stats[`MemShared`]; found {
-		_, skip := stringArrayContains(m.config.ExcludeMetrics, "mem_shared")
-		y, err := lp.New("mem_shared", m.tags, m.meta, map[string]interface{}{"value": int(float64(m.stats[`MemShared`]) * 1.0e-3)}, time.Now())
-		if err == nil && !skip {
-			output <- y
+
+	if m.config.NumaStats {
+		for _, nodeConf := range m.nodefiles {
+			stats := getStats(nodeConf.file)
+			sendStats(stats, nodeConf.tags)
 		}
 	}
 }

collectors/metricCollector.go

@@ -3,40 +3,43 @@ package collectors
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
-	"log"
-	"strconv"
-	"strings"
 	"time"
 
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
-	influx "github.com/influxdata/line-protocol"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
 )
 
 type MetricCollector interface {
-	Name() string
-	Init(config json.RawMessage) error
-	Initialized() bool
-	Read(duration time.Duration, output chan lp.CCMetric)
-	Close()
+	Name() string                      // Name of the metric collector
+	Init(config json.RawMessage) error // Initialize metric collector
+	Initialized() bool                 // Is metric collector initialized?
+	Parallel() bool
+	Read(duration time.Duration, output chan lp.CCMessage) // Read metrics from metric collector
+	Close()                                               // Close / finish metric collector
 }
 
 type metricCollector struct {
-	name string
-	init bool
-	meta map[string]string
+	name     string            // name of the metric
+	init     bool              // is metric collector initialized?
+	parallel bool              // can the metric collector be executed in parallel with others
+	meta     map[string]string // static meta data tags
 }
 
-// Name() returns the name of the metric collector
+// Name returns the name of the metric collector
 func (c *metricCollector) Name() string {
 	return c.name
 }
 
+// Name returns the name of the metric collector
+func (c *metricCollector) Parallel() bool {
+	return c.parallel
+}
+
+// Setup is for future use
 func (c *metricCollector) setup() error {
 	return nil
 }
 
-// Initialized() indicates whether the metric collector has been initialized.
+// Initialized indicates whether the metric collector has been initialized
 func (c *metricCollector) Initialized() bool {
 	return c.init
 }
@@ -65,81 +68,13 @@ func stringArrayContains(array []string, str string) (int, bool) {
 	return -1, false
 }
 
-func SocketList() []int {
-	buffer, err := ioutil.ReadFile("/proc/cpuinfo")
-	if err != nil {
-		log.Print(err)
-		return nil
-	}
-	ll := strings.Split(string(buffer), "\n")
-	var packs []int
-	for _, line := range ll {
-		if strings.HasPrefix(line, "physical id") {
-			lv := strings.Fields(line)
-			id, err := strconv.ParseInt(lv[3], 10, 32)
-			if err != nil {
-				log.Print(err)
-				return packs
-			}
-			_, found := intArrayContains(packs, int(id))
-			if !found {
-				packs = append(packs, int(id))
-			}
-		}
-	}
-	return packs
-}
-
-func CpuList() []int {
-	buffer, err := ioutil.ReadFile("/proc/cpuinfo")
-	if err != nil {
-		log.Print(err)
-		return nil
-	}
-	ll := strings.Split(string(buffer), "\n")
-	var cpulist []int
-	for _, line := range ll {
-		if strings.HasPrefix(line, "processor") {
-			lv := strings.Fields(line)
-			id, err := strconv.ParseInt(lv[2], 10, 32)
-			if err != nil {
-				log.Print(err)
-				return cpulist
-			}
-			_, found := intArrayContains(cpulist, int(id))
-			if !found {
-				cpulist = append(cpulist, int(id))
-			}
-		}
-	}
-	return cpulist
-}
-
-// Tags2Map stores a InfluxDB list of tags in a map of key value pairs
-func Tags2Map(metric influx.Metric) map[string]string {
-	tags := make(map[string]string)
-	for _, t := range metric.TagList() {
-		tags[t.Key] = t.Value
-	}
-	return tags
-}
-
-// Fields2Map stores a InfluxDB list of fields in a map of key value pairs
-func Fields2Map(metric influx.Metric) map[string]interface{} {
-	fields := make(map[string]interface{})
-	for _, f := range metric.FieldList() {
-		fields[f.Key] = f.Value
-	}
-	return fields
-}
-
 // RemoveFromStringList removes the string r from the array of strings s
 // If r is not contained in the array an error is returned
 func RemoveFromStringList(s []string, r string) ([]string, error) {
-	for i, item := range s {
-		if r == item {
+	for i := range s {
+		if r == s[i] {
 			return append(s[:i], s[i+1:]...), nil
 		}
 	}
-	return s, fmt.Errorf("No such string in list")
+	return s, fmt.Errorf("no such string in list")
 }

collectors/netstatMetric.go

@@ -1,92 +1,218 @@
 package collectors
 
 import (
+	"bufio"
 	"encoding/json"
-	"io/ioutil"
-	"log"
+	"errors"
+	"os"
 	"strconv"
 	"strings"
 	"time"
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
 )
 
-const NETSTATFILE = `/proc/net/dev`
+const NETSTATFILE = "/proc/net/dev"
 
 type NetstatCollectorConfig struct {
-	ExcludeDevices []string `json:"exclude_devices"`
+	IncludeDevices     []string `json:"include_devices"`
+	SendAbsoluteValues bool     `json:"send_abs_values"`
+	SendDerivedValues  bool     `json:"send_derived_values"`
+}
+
+type NetstatCollectorMetric struct {
+	name       string
+	index      int
+	tags       map[string]string
+	meta       map[string]string
+	meta_rates map[string]string
+	lastValue  int64
 }
 
 type NetstatCollector struct {
 	metricCollector
 	config        NetstatCollectorConfig
-	matches map[int]string
+	matches       map[string][]NetstatCollectorMetric
+	lastTimestamp time.Time
 }
 
 func (m *NetstatCollector) Init(config json.RawMessage) error {
 	m.name = "NetstatCollector"
+	m.parallel = true
 	m.setup()
-	m.meta = map[string]string{"source": m.name, "group": "Memory"}
-	m.matches = map[int]string{
-		1:  "bytes_in",
-		9:  "bytes_out",
-		2:  "pkts_in",
-		10: "pkts_out",
-	}
+	m.lastTimestamp = time.Now()
+
+	const (
+		fieldInterface = iota
+		fieldReceiveBytes
+		fieldReceivePackets
+		fieldReceiveErrs
+		fieldReceiveDrop
+		fieldReceiveFifo
+		fieldReceiveFrame
+		fieldReceiveCompressed
+		fieldReceiveMulticast
+		fieldTransmitBytes
+		fieldTransmitPackets
+		fieldTransmitErrs
+		fieldTransmitDrop
+		fieldTransmitFifo
+		fieldTransmitColls
+		fieldTransmitCarrier
+		fieldTransmitCompressed
+	)
+
+	m.matches = make(map[string][]NetstatCollectorMetric)
+
+	// Set default configuration,
+	m.config.SendAbsoluteValues = true
+	m.config.SendDerivedValues = false
+	// Read configuration file, allow overwriting default config
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
-			log.Print(err.Error())
+			cclog.ComponentError(m.name, "Error reading config:", err.Error())
 			return err
 		}
 	}
-	_, err := ioutil.ReadFile(string(NETSTATFILE))
-	if err == nil {
-		m.init = true
-	}
-	return nil
-}
 
-func (m *NetstatCollector) Read(interval time.Duration, output chan lp.CCMetric) {
-	data, err := ioutil.ReadFile(string(NETSTATFILE))
+	// Check access to net statistic file
+	file, err := os.Open(NETSTATFILE)
 	if err != nil {
-		log.Print(err.Error())
-		return
+		cclog.ComponentError(m.name, err.Error())
+		return err
 	}
+	defer file.Close()
 
-	lines := strings.Split(string(data), "\n")
-	for _, l := range lines {
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		l := scanner.Text()
+
+		// Skip lines with no net device entry
 		if !strings.Contains(l, ":") {
 			continue
 		}
+
+		// Split line into fields
 		f := strings.Fields(l)
-		dev := f[0][0 : len(f[0])-1]
-		cont := false
-		for _, d := range m.config.ExcludeDevices {
-			if d == dev {
-				cont = true
-			}
-		}
-		if cont {
-			continue
-		}
-		tags := map[string]string{"device": dev, "type": "node"}
-		for i, name := range m.matches {
-			v, err := strconv.ParseInt(f[i], 10, 0)
-			if err == nil {
-				y, err := lp.New(name, tags, m.meta, map[string]interface{}{"value": int(float64(v) * 1.0e-3)}, time.Now())
-				if err == nil {
-					switch {
-					case strings.Contains(name, "byte"):
-						y.AddMeta("unit", "Byte")
-					case strings.Contains(name, "pkt"):
-						y.AddMeta("unit", "Packets")
-					}
-					output <- y
-				}
-			}
+
+		// Get net device entry
+		dev := strings.Trim(f[0], ": ")
+
+		// Check if device is a included device
+		if _, ok := stringArrayContains(m.config.IncludeDevices, dev); ok {
+			tags := map[string]string{"stype": "network", "stype-id": dev, "type": "node"}
+			meta_unit_byte := map[string]string{"source": m.name, "group": "Network", "unit": "bytes"}
+			meta_unit_byte_per_sec := map[string]string{"source": m.name, "group": "Network", "unit": "bytes/sec"}
+			meta_unit_pkts := map[string]string{"source": m.name, "group": "Network", "unit": "packets"}
+			meta_unit_pkts_per_sec := map[string]string{"source": m.name, "group": "Network", "unit": "packets/sec"}
+
+			m.matches[dev] = []NetstatCollectorMetric{
+				{
+					name:       "net_bytes_in",
+					index:      fieldReceiveBytes,
+					lastValue:  -1,
+					tags:       tags,
+					meta:       meta_unit_byte,
+					meta_rates: meta_unit_byte_per_sec,
+				},
+				{
+					name:       "net_pkts_in",
+					index:      fieldReceivePackets,
+					lastValue:  -1,
+					tags:       tags,
+					meta:       meta_unit_pkts,
+					meta_rates: meta_unit_pkts_per_sec,
+				},
+				{
+					name:       "net_bytes_out",
+					index:      fieldTransmitBytes,
+					lastValue:  -1,
+					tags:       tags,
+					meta:       meta_unit_byte,
+					meta_rates: meta_unit_byte_per_sec,
+				},
+				{
+					name:       "net_pkts_out",
+					index:      fieldTransmitPackets,
+					lastValue:  -1,
+					tags:       tags,
+					meta:       meta_unit_pkts,
+					meta_rates: meta_unit_pkts_per_sec,
+				},
 			}
 		}
 
+	}
+
+	if len(m.matches) == 0 {
+		return errors.New("no devices to collector metrics found")
+	}
+	m.init = true
+	return nil
+}
+
+func (m *NetstatCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	if !m.init {
+		return
+	}
+	// Current time stamp
+	now := time.Now()
+	// time difference to last time stamp
+	timeDiff := now.Sub(m.lastTimestamp).Seconds()
+	// Save current timestamp
+	m.lastTimestamp = now
+
+	file, err := os.Open(string(NETSTATFILE))
+	if err != nil {
+		cclog.ComponentError(m.name, err.Error())
+		return
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		l := scanner.Text()
+
+		// Skip lines with no net device entry
+		if !strings.Contains(l, ":") {
+			continue
+		}
+
+		// Split line into fields
+		f := strings.Fields(l)
+
+		// Get net device entry
+		dev := strings.Trim(f[0], ":")
+
+		// Check if device is a included device
+		if devmetrics, ok := m.matches[dev]; ok {
+			for i := range devmetrics {
+				metric := &devmetrics[i]
+
+				// Read value
+				v, err := strconv.ParseInt(f[metric.index], 10, 64)
+				if err != nil {
+					continue
+				}
+				if m.config.SendAbsoluteValues {
+					if y, err := lp.NewMessage(metric.name, metric.tags, metric.meta, map[string]interface{}{"value": v}, now); err == nil {
+						output <- y
+					}
+				}
+				if m.config.SendDerivedValues {
+					if metric.lastValue >= 0 {
+						rate := float64(v-metric.lastValue) / timeDiff
+						if y, err := lp.NewMessage(metric.name+"_bw", metric.tags, metric.meta_rates, map[string]interface{}{"value": rate}, now); err == nil {
+							output <- y
+						}
+					}
+					metric.lastValue = v
+				}
+			}
+		}
+	}
 }
 
 func (m *NetstatCollector) Close() {

collectors/netstatMetric.md

@@ -3,19 +3,25 @@
 
 ```json
   "netstat": {
-    "exclude_devices": [
-      "lo"
-    ]
+    "include_devices": [
+      "eth0"
+    ],
+    "send_abs_values" : true,
+    "send_derived_values" : true
   }
 ```
 
-The `netstat` collector reads data from `/proc/net/dev` and outputs a handful **node** metrics. If a device is not required, it can be excluded from forwarding it to the sink. Commonly the `lo` device should be excluded.
+The `netstat` collector reads data from `/proc/net/dev` and outputs a handful **node** metrics. With the `include_devices` list you can specify which network devices should be measured. **Note**: Most other collectors use an _exclude_ list instead of an include list.
 
 Metrics:
-* `bytes_in`
-* `bytes_out`
-* `pkts_in`
-* `pkts_out`
+* `net_bytes_in` (`unit=bytes`)
+* `net_bytes_out` (`unit=bytes`)
+* `net_pkts_in` (`unit=packets`)
+* `net_pkts_out` (`unit=packets`)
+* `net_bytes_in_bw` (`unit=bytes/sec` if `send_derived_values == true`)
+* `net_bytes_out_bw` (`unit=bytes/sec` if `send_derived_values == true`)
+* `net_pkts_in_bw` (`unit=packets/sec` if `send_derived_values == true`)
+* `net_pkts_out_bw` (`unit=packets/sec` if `send_derived_values == true`)
 
-The device name is added as tag `device`.
+The device name is added as tag `stype=network,stype-id=<device>`.
 

collectors/nfs3Metric.md

@@ -0,0 +1,39 @@
+
+## `nfs3stat` collector
+
+```json
+  "nfs3stat": {
+    "nfsstat" : "/path/to/nfsstat",
+    "exclude_metrics": [
+      "nfs3_total"
+    ]
+  }
+```
+
+The `nfs3stat` collector reads data from `nfsstat` command and outputs a handful **node** metrics. If a metric is not required, it can be excluded from forwarding it to the sink. There is currently no possibility to get the metrics per mount point.
+
+
+Metrics:
+* `nfs3_total` 
+* `nfs3_null` 
+* `nfs3_getattr` 
+* `nfs3_setattr` 
+* `nfs3_lookup` 
+* `nfs3_access` 
+* `nfs3_readlink` 
+* `nfs3_read` 
+* `nfs3_write` 
+* `nfs3_create` 
+* `nfs3_mkdir` 
+* `nfs3_symlink` 
+* `nfs3_remove` 
+* `nfs3_rmdir` 
+* `nfs3_rename` 
+* `nfs3_link` 
+* `nfs3_readdir` 
+* `nfs3_readdirplus` 
+* `nfs3_fsstat` 
+* `nfs3_fsinfo` 
+* `nfs3_pathconf` 
+* `nfs3_commit` 
+

collectors/nfs4Metric.md

@@ -0,0 +1,62 @@
+
+## `nfs4stat` collector
+
+```json
+  "nfs4stat": {
+    "nfsstat" : "/path/to/nfsstat",
+    "exclude_metrics": [
+      "nfs4_total"
+    ]
+  }
+```
+
+The `nfs4stat` collector reads data from `nfsstat` command and outputs a handful **node** metrics. If a metric is not required, it can be excluded from forwarding it to the sink. There is currently no possibility to get the metrics per mount point.
+
+
+Metrics:
+* `nfs4_total` 
+* `nfs4_null` 
+* `nfs4_read` 
+* `nfs4_write` 
+* `nfs4_commit` 
+* `nfs4_open` 
+* `nfs4_open_conf` 
+* `nfs4_open_noat` 
+* `nfs4_open_dgrd` 
+* `nfs4_close` 
+* `nfs4_setattr` 
+* `nfs4_fsinfo` 
+* `nfs4_renew` 
+* `nfs4_setclntid` 
+* `nfs4_confirm` 
+* `nfs4_lock` 
+* `nfs4_lockt` 
+* `nfs4_locku` 
+* `nfs4_access` 
+* `nfs4_getattr` 
+* `nfs4_lookup` 
+* `nfs4_lookup_root` 
+* `nfs4_remove` 
+* `nfs4_rename` 
+* `nfs4_link` 
+* `nfs4_symlink` 
+* `nfs4_create` 
+* `nfs4_pathconf` 
+* `nfs4_statfs` 
+* `nfs4_readlink` 
+* `nfs4_readdir` 
+* `nfs4_server_caps` 
+* `nfs4_delegreturn` 
+* `nfs4_getacl` 
+* `nfs4_setacl` 
+* `nfs4_rel_lkowner` 
+* `nfs4_exchange_id` 
+* `nfs4_create_session` 
+* `nfs4_destroy_session` 
+* `nfs4_sequence` 
+* `nfs4_get_lease_time` 
+* `nfs4_reclaim_comp` 
+* `nfs4_secinfo_no` 
+* `nfs4_bind_conn_to_ses` 
+
+

collectors/nfsMetric.go

@@ -11,26 +11,32 @@ import (
 	"strings"
 	"time"
 
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
 )
 
+// First part contains the code for the general NfsCollector.
+// Later, the general NfsCollector is more limited to Nfs3- and Nfs4Collector.
+
+const NFSSTAT_EXEC = `nfsstat`
+
 type NfsCollectorData struct {
 	current int64
 	last    int64
 }
 
-type NfsCollector struct {
+type nfsCollector struct {
 	metricCollector
 	tags    map[string]string
+	version string
 	config  struct {
-		Nfsutils       string   `json:"nfsutils"`
+		Nfsstats       string   `json:"nfsstat"`
 		ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
 	}
-	data map[string]map[string]NfsCollectorData
+	data map[string]NfsCollectorData
 }
 
-func (m *NfsCollector) initStats() error {
-	cmd := exec.Command(m.config.Nfsutils, "-l")
+func (m *nfsCollector) initStats() error {
+	cmd := exec.Command(m.config.Nfsstats, `-l`, `--all`)
 	cmd.Wait()
 	buffer, err := cmd.Output()
 	if err == nil {
@@ -39,17 +45,16 @@ func (m *NfsCollector) initStats() error {
 			if len(lf) != 5 {
 				continue
 			}
-			if _, exist := m.data[lf[1]]; !exist {
-				m.data[lf[1]] = make(map[string]NfsCollectorData)
-			}
+			if lf[1] == m.version {
 				name := strings.Trim(lf[3], ":")
-			if _, exist := m.data[lf[1]][name]; !exist {
+				if _, exist := m.data[name]; !exist {
 					value, err := strconv.ParseInt(lf[4], 0, 64)
 					if err == nil {
-					x := m.data[lf[1]][name]
+						x := m.data[name]
 						x.current = value
-					x.last = 0
-					m.data[lf[1]][name] = x
+						x.last = value
+						m.data[name] = x
+					}
 				}
 			}
 		}
@@ -57,8 +62,8 @@ func (m *NfsCollector) initStats() error {
 	return err
 }
 
-func (m *NfsCollector) updateStats() error {
-	cmd := exec.Command(m.config.Nfsutils, "-l")
+func (m *nfsCollector) updateStats() error {
+	cmd := exec.Command(m.config.Nfsstats, `-l`, `--all`)
 	cmd.Wait()
 	buffer, err := cmd.Output()
 	if err == nil {
@@ -67,17 +72,16 @@ func (m *NfsCollector) updateStats() error {
 			if len(lf) != 5 {
 				continue
 			}
-			if _, exist := m.data[lf[1]]; !exist {
-				m.data[lf[1]] = make(map[string]NfsCollectorData)
-			}
+			if lf[1] == m.version {
 				name := strings.Trim(lf[3], ":")
-			if _, exist := m.data[lf[1]][name]; exist {
+				if _, exist := m.data[name]; exist {
 					value, err := strconv.ParseInt(lf[4], 0, 64)
 					if err == nil {
-					x := m.data[lf[1]][name]
+						x := m.data[name]
 						x.last = x.current
 						x.current = value
-					m.data[lf[1]][name] = x
+						m.data[name] = x
+					}
 				}
 			}
 		}
@@ -85,17 +89,11 @@ func (m *NfsCollector) updateStats() error {
 	return err
 }
 
-func (m *NfsCollector) Init(config json.RawMessage) error {
-	var err error
-	m.name = "NfsCollector"
-	m.setup()
-
-	// Set default mmpmon binary
-	m.config.Nfsutils = "/usr/sbin/nfsstat"
-
+func (m *nfsCollector) MainInit(config json.RawMessage) error {
+	m.config.Nfsstats = string(NFSSTAT_EXEC)
 	// Read JSON configuration
 	if len(config) > 0 {
-		err = json.Unmarshal(config, &m.config)
+		err := json.Unmarshal(config, &m.config)
 		if err != nil {
 			log.Print(err.Error())
 			return err
@@ -108,40 +106,70 @@ func (m *NfsCollector) Init(config json.RawMessage) error {
 	m.tags = map[string]string{
 		"type": "node",
 	}
-	// Check if mmpmon is in executable search path
-	_, err = exec.LookPath(m.config.Nfsutils)
+	// Check if nfsstat is in executable search path
+	_, err := exec.LookPath(m.config.Nfsstats)
 	if err != nil {
-		return fmt.Errorf("NfsCollector.Init(): Failed to find nfsstat binary '%s': %v", m.config.Nfsutils, err)
+		return fmt.Errorf("NfsCollector.Init(): Failed to find nfsstat binary '%s': %v", m.config.Nfsstats, err)
 	}
-	m.data = make(map[string]map[string]NfsCollectorData)
+	m.data = make(map[string]NfsCollectorData)
 	m.initStats()
 	m.init = true
+	m.parallel = true
 	return nil
 }
 
-func (m *NfsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
+func (m *nfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 	if !m.init {
 		return
 	}
 	timestamp := time.Now()
 
 	m.updateStats()
+	prefix := ""
+	switch m.version {
+	case "v3":
+		prefix = "nfs3"
+	case "v4":
+		prefix = "nfs4"
+	default:
+		prefix = "nfs"
+	}
 
-	for version, metrics := range m.data {
-		for name, data := range metrics {
+	for name, data := range m.data {
 		if _, skip := stringArrayContains(m.config.ExcludeMetrics, name); skip {
 			continue
 		}
 		value := data.current - data.last
-			y, err := lp.New(fmt.Sprintf("nfs_%s", name), m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
+		y, err := lp.NewMessage(fmt.Sprintf("%s_%s", prefix, name), m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
 		if err == nil {
-				y.AddMeta("version", version)
+			y.AddMeta("version", m.version)
 			output <- y
 		}
 	}
-	}
 }
 
-func (m *NfsCollector) Close() {
+func (m *nfsCollector) Close() {
 	m.init = false
 }
+
+type Nfs3Collector struct {
+	nfsCollector
+}
+
+type Nfs4Collector struct {
+	nfsCollector
+}
+
+func (m *Nfs3Collector) Init(config json.RawMessage) error {
+	m.name = "Nfs3Collector"
+	m.version = `v3`
+	m.setup()
+	return m.MainInit(config)
+}
+
+func (m *Nfs4Collector) Init(config json.RawMessage) error {
+	m.name = "Nfs4Collector"
+	m.version = `v4`
+	m.setup()
+	return m.MainInit(config)
+}

collectors/nfsiostatMetric.go

@@ -0,0 +1,166 @@
+package collectors
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+)
+
+// These are the fields we read from the JSON configuration
+type NfsIOStatCollectorConfig struct {
+	ExcludeMetrics          []string `json:"exclude_metrics,omitempty"`
+	ExcludeFilesystem       []string `json:"exclude_filesystem,omitempty"`
+	UseServerAddressAsSType bool     `json:"use_server_as_stype,omitempty"`
+}
+
+// This contains all variables we need during execution and the variables
+// defined by metricCollector (name, init, ...)
+type NfsIOStatCollector struct {
+	metricCollector
+	config NfsIOStatCollectorConfig    // the configuration structure
+	meta   map[string]string           // default meta information
+	tags   map[string]string           // default tags
+	data   map[string]map[string]int64 // data storage for difference calculation
+	key    string                      // which device info should be used as subtype ID? 'server' or 'mntpoint', see NfsIOStatCollectorConfig.UseServerAddressAsSType
+}
+
+var deviceRegex = regexp.MustCompile(`device (?P<server>[^ ]+) mounted on (?P<mntpoint>[^ ]+) with fstype nfs(?P<version>\d*) statvers=[\d\.]+`)
+var bytesRegex = regexp.MustCompile(`\s+bytes:\s+(?P<nread>[^ ]+) (?P<nwrite>[^ ]+) (?P<dread>[^ ]+) (?P<dwrite>[^ ]+) (?P<nfsread>[^ ]+) (?P<nfswrite>[^ ]+) (?P<pageread>[^ ]+) (?P<pagewrite>[^ ]+)`)
+
+func resolve_regex_fields(s string, regex *regexp.Regexp) map[string]string {
+	fields := make(map[string]string)
+	groups := regex.SubexpNames()
+	for _, match := range regex.FindAllStringSubmatch(s, -1) {
+		for groupIdx, group := range match {
+			if len(groups[groupIdx]) > 0 {
+				fields[groups[groupIdx]] = group
+			}
+		}
+	}
+	return fields
+}
+
+func (m *NfsIOStatCollector) readNfsiostats() map[string]map[string]int64 {
+	data := make(map[string]map[string]int64)
+	filename := "/proc/self/mountstats"
+	stats, err := os.ReadFile(filename)
+	if err != nil {
+		return data
+	}
+
+	lines := strings.Split(string(stats), "\n")
+	var current map[string]string = nil
+	for _, l := range lines {
+		// Is this a device line with mount point, remote target and NFS version?
+		dev := resolve_regex_fields(l, deviceRegex)
+		if len(dev) > 0 {
+			if _, ok := stringArrayContains(m.config.ExcludeFilesystem, dev[m.key]); !ok {
+				current = dev
+				if len(current["version"]) == 0 {
+					current["version"] = "3"
+				}
+			}
+		}
+
+		if len(current) > 0 {
+			// Byte line parsing (if found the device for it)
+			bytes := resolve_regex_fields(l, bytesRegex)
+			if len(bytes) > 0 {
+				data[current[m.key]] = make(map[string]int64)
+				for name, sval := range bytes {
+					if _, ok := stringArrayContains(m.config.ExcludeMetrics, name); !ok {
+						val, err := strconv.ParseInt(sval, 10, 64)
+						if err == nil {
+							data[current[m.key]][name] = val
+						}
+					}
+
+				}
+				current = nil
+			}
+		}
+	}
+	return data
+}
+
+func (m *NfsIOStatCollector) Init(config json.RawMessage) error {
+	var err error = nil
+	m.name = "NfsIOStatCollector"
+	m.setup()
+	m.parallel = true
+	m.meta = map[string]string{"source": m.name, "group": "NFS", "unit": "bytes"}
+	m.tags = map[string]string{"type": "node"}
+	m.config.UseServerAddressAsSType = false
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			cclog.ComponentError(m.name, "Error reading config:", err.Error())
+			return err
+		}
+	}
+	m.key = "mntpoint"
+	if m.config.UseServerAddressAsSType {
+		m.key = "server"
+	}
+	m.data = m.readNfsiostats()
+	m.init = true
+	return err
+}
+
+func (m *NfsIOStatCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	timestamp := time.Now()
+
+	// Get the current values for all mountpoints
+	newdata := m.readNfsiostats()
+
+	for mntpoint, values := range newdata {
+		// Was the mount point already present in the last iteration
+		if old, ok := m.data[mntpoint]; ok {
+			// Calculate the difference of old and new values
+			for i := range values {
+				x := values[i] - old[i]
+				y, err := lp.NewMessage(fmt.Sprintf("nfsio_%s", i), m.tags, m.meta, map[string]interface{}{"value": x}, timestamp)
+				if err == nil {
+					if strings.HasPrefix(i, "page") {
+						y.AddMeta("unit", "4K_Pages")
+					}
+					y.AddTag("stype", "filesystem")
+					y.AddTag("stype-id", mntpoint)
+					// Send it to output channel
+					output <- y
+				}
+				// Update old to the new value for the next iteration
+				old[i] = values[i]
+			}
+		} else {
+			// First time we see this mount point, store all values
+			m.data[mntpoint] = values
+		}
+	}
+	// Reset entries that do not exist anymore
+	for mntpoint := range m.data {
+		found := false
+		for new := range newdata {
+			if new == mntpoint {
+				found = true
+				break
+			}
+		}
+		if !found {
+			m.data[mntpoint] = nil
+		}
+	}
+
+}
+
+func (m *NfsIOStatCollector) Close() {
+	// Unset flag
+	m.init = false
+}

collectors/nfsiostatMetric.md

@@ -0,0 +1,27 @@
+## `nfsiostat` collector
+
+```json
+  "nfsiostat": {
+    "exclude_metrics": [
+      "nfsio_oread"
+    ],
+    "exclude_filesystems" : [
+        "/mnt",
+    ],
+    "use_server_as_stype": false
+  }
+```
+
+The `nfsiostat` collector reads data from `/proc/self/mountstats` and outputs a handful **node** metrics for each NFS filesystem. If a metric or filesystem is not required, it can be excluded from forwarding it to the sink.
+
+Metrics:
+* `nfsio_nread`: Bytes transferred by normal `read()` calls
+* `nfsio_nwrite`: Bytes transferred by normal `write()` calls
+* `nfsio_oread`: Bytes transferred by `read()` calls with `O_DIRECT`
+* `nfsio_owrite`: Bytes transferred by `write()` calls with `O_DIRECT`
+* `nfsio_pageread`: Pages transferred by `read()` calls
+* `nfsio_pagewrite`: Pages transferred by `write()` calls
+* `nfsio_nfsread`: Bytes transferred for reading from the server
+* `nfsio_nfswrite`: Pages transferred by writing to the server
+
+The `nfsiostat` collector adds the mountpoint to the tags as `stype=filesystem,stype-id=<mountpoint>`. If the server address should be used instead of the mountpoint, use the `use_server_as_stype` config setting.

collectors/numastatsMetric.go

@@ -0,0 +1,151 @@
+package collectors
+
+import (
+	"bufio"
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+)
+
+// Non-Uniform Memory Access (NUMA) policy hit/miss statistics
+//
+// numa_hit:
+//
+//	A process wanted to allocate memory from this node, and succeeded.
+//
+// numa_miss:
+//
+//	A process wanted to allocate memory from another node,
+//	but ended up with memory from this node.
+//
+// numa_foreign:
+//
+//	A process wanted to allocate on this node,
+//	but ended up with memory from another node.
+//
+// local_node:
+//
+//	A process ran on this node's CPU,
+//	and got memory from this node.
+//
+// other_node:
+//
+//	A process ran on a different node's CPU
+//	and got memory from this node.
+//
+// interleave_hit:
+//
+//	Interleaving wanted to allocate from this node
+//	and succeeded.
+//
+// See: https://www.kernel.org/doc/html/latest/admin-guide/numastat.html
+type NUMAStatsCollectorTopolgy struct {
+	file   string
+	tagSet map[string]string
+}
+
+type NUMAStatsCollector struct {
+	metricCollector
+	topology []NUMAStatsCollectorTopolgy
+}
+
+func (m *NUMAStatsCollector) Init(config json.RawMessage) error {
+	// Check if already initialized
+	if m.init {
+		return nil
+	}
+
+	m.name = "NUMAStatsCollector"
+	m.parallel = true
+	m.setup()
+	m.meta = map[string]string{
+		"source": m.name,
+		"group":  "NUMA",
+	}
+
+	// Loop for all NUMA node directories
+	base := "/sys/devices/system/node/node"
+	globPattern := base + "[0-9]*"
+	dirs, err := filepath.Glob(globPattern)
+	if err != nil {
+		return fmt.Errorf("unable to glob files with pattern '%s'", globPattern)
+	}
+	if dirs == nil {
+		return fmt.Errorf("unable to find any files with pattern '%s'", globPattern)
+	}
+	m.topology = make([]NUMAStatsCollectorTopolgy, 0, len(dirs))
+	for _, dir := range dirs {
+		node := strings.TrimPrefix(dir, base)
+		file := filepath.Join(dir, "numastat")
+		m.topology = append(m.topology,
+			NUMAStatsCollectorTopolgy{
+				file:   file,
+				tagSet: map[string]string{"memoryDomain": node},
+			})
+	}
+
+	// Initialized
+	cclog.ComponentDebug(m.name, "initialized", len(m.topology), "NUMA domains")
+	m.init = true
+	return nil
+}
+
+func (m *NUMAStatsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	if !m.init {
+		return
+	}
+
+	for i := range m.topology {
+		// Loop for all NUMA domains
+		t := &m.topology[i]
+
+		now := time.Now()
+		file, err := os.Open(t.file)
+		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to open file '%s': %v", t.file, err))
+			return
+		}
+		scanner := bufio.NewScanner(file)
+
+		// Read line by line
+		for scanner.Scan() {
+			split := strings.Fields(scanner.Text())
+			if len(split) != 2 {
+				continue
+			}
+			key := split[0]
+			value, err := strconv.ParseInt(split[1], 10, 64)
+			if err != nil {
+				cclog.ComponentError(
+					m.name,
+					fmt.Sprintf("Read(): Failed to convert %s='%s' to int64: %v", key, split[1], err))
+				continue
+			}
+			y, err := lp.NewMessage(
+				"numastats_"+key,
+				t.tagSet,
+				m.meta,
+				map[string]interface{}{"value": value},
+				now,
+			)
+			if err == nil {
+				output <- y
+			}
+		}
+
+		file.Close()
+	}
+}
+
+func (m *NUMAStatsCollector) Close() {
+	m.init = false
+}

collectors/numastatsMetric.md

@@ -0,0 +1,17 @@
+
+## `numastat` collector
+
+```json
+  "numastats": {}
+```
+
+The `numastat` collector reads data from `/sys/devices/system/node/node*/numastat` and outputs a handful **memoryDomain** metrics. See: <https://www.kernel.org/doc/html/latest/admin-guide/numastat.html>
+
+Metrics:
+
+* `numastats_numa_hit`: A process wanted to allocate memory from this node, and succeeded.
+* `numastats_numa_miss`: A process wanted to allocate memory from another node, but ended up with memory from this node.
+* `numastats_numa_foreign`: A process wanted to allocate on this node, but ended up with memory from another node.
+* `numastats_local_node`: A process ran on this node's CPU, and got memory from this node.
+* `numastats_other_node`: A process ran on a different node's CPU, and got memory from this node.
+* `numastats_interleave_hit`: Interleaving wanted to allocate from this node and succeeded.

collectors/nvidiaMetric.md

@@ -3,38 +3,74 @@
 
 ```json
   "nvidia": {
-    "exclude_devices" : [
-      "0","1"
+    "exclude_devices": [
+      "0","1", "0000000:ff:01.0"
     ],
     "exclude_metrics": [
-      "nv_fb_memory",
+      "nv_fb_mem_used",
       "nv_fan"
-    ]
+    ],
+    "process_mig_devices": false,
+    "use_pci_info_as_type_id": true,
+    "add_pci_info_tag": false,
+    "add_uuid_meta": false,
+    "add_board_number_meta": false,
+    "add_serial_meta": false,
+    "use_uuid_for_mig_device": false,
+    "use_slice_for_mig_device": false
   }
 ```
 
+The `nvidia` collector can be configured to leave out specific devices with the `exclude_devices` option. It takes IDs as supplied to the NVML with `nvmlDeviceGetHandleByIndex()` or the PCI address in NVML format (`%08X:%02X:%02X.0`). Metrics (listed below) that should not be sent to the MetricRouter can be excluded with the `exclude_metrics` option. Commonly only the physical GPUs are monitored. If MIG devices should be analyzed as well, set `process_mig_devices` (adds `stype=mig,stype-id=<mig_index>`). With the options `use_uuid_for_mig_device` and `use_slice_for_mig_device`, the `<mig_index>` can be replaced with the UUID (e.g. `MIG-6a9f7cc8-6d5b-5ce0-92de-750edc4d8849`) or the MIG slice name (e.g. `1g.5gb`).
+
+The metrics sent by the `nvidia` collector use `accelerator` as `type` tag. For the `type-id`, it uses the device handle index by default. With the `use_pci_info_as_type_id` option, the PCI ID is used instead. If both values should be added as tags, activate the `add_pci_info_tag` option. It uses the device handle index as `type-id` and adds the PCI ID as separate `pci_identifier` tag.
+
+Optionally, it is possible to add the UUID, the board part number and the serial to the meta informations. They are not sent to the sinks (if not configured otherwise).
+
+
 Metrics:
 * `nv_util`
 * `nv_mem_util`
-* `nv_mem_total`
-* `nv_fb_memory`
+* `nv_fb_mem_total`
+* `nv_fb_mem_used`
+* `nv_bar1_mem_total`
+* `nv_bar1_mem_used`
 * `nv_temp`
 * `nv_fan`
 * `nv_ecc_mode`
 * `nv_perf_state`
-* `nv_power_usage_report`
-* `nv_graphics_clock_report`
-* `nv_sm_clock_report`
-* `nv_mem_clock_report`
+* `nv_power_usage`
+* `nv_graphics_clock`
+* `nv_sm_clock`
+* `nv_mem_clock`
+* `nv_video_clock`
 * `nv_max_graphics_clock`
 * `nv_max_sm_clock`
 * `nv_max_mem_clock`
-* `nv_ecc_db_error`
-* `nv_ecc_sb_error`
-* `nv_power_man_limit`
+* `nv_max_video_clock`
+* `nv_ecc_uncorrected_error`
+* `nv_ecc_corrected_error`
+* `nv_power_max_limit`
 * `nv_encoder_util`
 * `nv_decoder_util`
+* `nv_remapped_rows_corrected`
+* `nv_remapped_rows_uncorrected`
+* `nv_remapped_rows_pending`
+* `nv_remapped_rows_failure`
+* `nv_compute_processes`
+* `nv_graphics_processes`
+* `nv_violation_power`
+* `nv_violation_thermal`
+* `nv_violation_sync_boost`
+* `nv_violation_board_limit`
+* `nv_violation_low_util`
+* `nv_violation_reliability`
+* `nv_violation_below_app_clock`
+* `nv_violation_below_base_clock`
+* `nv_nvlink_crc_flit_errors`
+* `nv_nvlink_crc_errors`
+* `nv_nvlink_ecc_errors`
+* `nv_nvlink_replay_errors`
+* `nv_nvlink_recovery_errors`
 
-It uses a separate `type` in the metrics. The output metric looks like this:
-`<name>,type=accelerator,type-id=<nvidia-gpu-id> value=<metric value> <timestamp>`
-
+Some metrics add the additional sub type tag (`stype`) like the `nv_nvlink_*` metrics set `stype=nvlink,stype-id=<link_number>`. 

collectors/perfCmdMetric.go

@@ -0,0 +1,384 @@
+package collectors
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"math"
+	"os"
+	"os/exec"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	topo "github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
+)
+
+var perf_number_regex = regexp.MustCompile(`(\d+),(\d+)`)
+
+const PERF_NOT_COUNTED = "<not counted>"
+const PERF_UNIT_NULL = "(null)"
+
+var VALID_METRIC_TYPES = []string{
+	"hwthread",
+	"core",
+	"llc",
+	"socket",
+	"die",
+	"node",
+	"memoryDomain",
+}
+
+type PerfCmdCollectorEventConfig struct {
+	Metric      string            `json:"metric"`                     // metric name
+	Event       string            `json:"event"`                      // perf event configuration
+	Type        string            `json:"type"`                       // Metric type (aka node, socket, hwthread, ...)
+	Tags        map[string]string `json:"tags,omitempty"`             // extra tags for the metric
+	Meta        map[string]string `json:"meta,omitempty"`             // extra meta information for the metric
+	Unit        string            `json:"unit,omitempty"`             // unit of metric (if any)
+	UsePerfUnit bool              `json:"use_perf_unit,omitempty"`    // for some events perf tells a metric
+	TypeAgg     string            `json:"type_aggregation,omitempty"` // how to aggregate cpu-data to metric type
+	Publish     bool              `json:"publish,omitempty"`
+	//lastCounterValue float64
+	//lastMetricValue  float64
+	collectorTags *map[string]string
+	collectorMeta *map[string]string
+	useCpus       map[int][]int
+}
+
+type PerfCmdCollectorExpression struct {
+	Metric     string `json:"metric"`                     // metric name
+	Expression string `json:"expression"`                 // expression based on metrics
+	Type       string `json:"type"`                       // Metric type (aka node, socket, hwthread, ...)
+	TypeAgg    string `json:"type_aggregation,omitempty"` // how to aggregate cpu-data to metric type
+	Publish    bool   `json:"publish,omitempty"`
+}
+
+// These are the fields we read from the JSON configuration
+type PerfCmdCollectorConfig struct {
+	Metrics     []PerfCmdCollectorEventConfig `json:"metrics"`
+	Expressions []PerfCmdCollectorExpression  `json:"expressions"`
+	PerfCmd     string                        `json:"perf_command,omitempty"`
+}
+
+// This contains all variables we need during execution and the variables
+// defined by metricCollector (name, init, ...)
+type PerfCmdCollector struct {
+	metricCollector
+	config          PerfCmdCollectorConfig                  // the configuration structure
+	meta            map[string]string                       // default meta information
+	tags            map[string]string                       // default tags
+	metrics         map[string]*PerfCmdCollectorEventConfig // list of events for internal data
+	perfEventString string
+}
+
+// Functions to implement MetricCollector interface
+// Init(...), Read(...), Close()
+// See: metricCollector.go
+
+// Init initializes the sample collector
+// Called once by the collector manager
+// All tags, meta data tags and metrics that do not change over the runtime should be set here
+func (m *PerfCmdCollector) Init(config json.RawMessage) error {
+	var err error = nil
+	// Always set the name early in Init() to use it in cclog.Component* functions
+	m.name = "PerfCmdCollector"
+	m.parallel = false
+	// This is for later use, also call it early
+	m.setup()
+	// Tell whether the collector should be run in parallel with others (reading files, ...)
+	// or it should be run serially, mostly for collectors actually doing measurements
+	// because they should not measure the execution of the other collectors
+	m.parallel = true
+	// Define meta information sent with each metric
+	// (Can also be dynamic or this is the basic set with extension through AddMeta())
+	m.meta = map[string]string{"source": m.name, "group": "PerfCounter"}
+	// Define tags sent with each metric
+	// The 'type' tag is always needed, it defines the granularity of the metric
+	// node -> whole system
+	// socket -> CPU socket (requires socket ID as 'type-id' tag)
+	// die -> CPU die (requires CPU die ID as 'type-id' tag)
+	// memoryDomain -> NUMA domain (requires NUMA domain ID as 'type-id' tag)
+	// llc -> Last level cache (requires last level cache ID as 'type-id' tag)
+	// core -> single CPU core that may consist of multiple hardware threads (SMT) (requires core ID as 'type-id' tag)
+	// hwthtread -> single CPU hardware thread (requires hardware thread ID as 'type-id' tag)
+	// accelerator -> A accelerator device like GPU or FPGA (requires an accelerator ID as 'type-id' tag)
+	m.tags = map[string]string{"type": "node"}
+	// Read in the JSON configuration
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			cclog.ComponentError(m.name, "Error reading config:", err.Error())
+			return err
+		}
+	}
+	m.config.PerfCmd = "perf"
+	if len(m.config.PerfCmd) > 0 {
+		_, err := os.Stat(m.config.PerfCmd)
+		if err != nil {
+			abs, err := exec.LookPath(m.config.PerfCmd)
+			if err != nil {
+				cclog.ComponentError(m.name, "Error looking up perf command", m.config.PerfCmd, ":", err.Error())
+				return err
+			}
+			m.config.PerfCmd = abs
+		}
+	}
+
+	// Set up everything that the collector requires during the Read() execution
+	// Check files required, test execution of some commands, create data structure
+	// for all topological entities (sockets, NUMA domains, ...)
+	// Return some useful error message in case of any failures
+
+	valid_metrics := make([]*PerfCmdCollectorEventConfig, 0)
+	valid_events := make([]string, 0)
+	test_type := func(Type string) bool {
+		for _, t := range VALID_METRIC_TYPES {
+			if Type == t {
+				return true
+			}
+		}
+		return false
+	}
+	for i, metric := range m.config.Metrics {
+		if !test_type(metric.Type) {
+			cclog.ComponentError(m.name, "Metric", metric.Metric, "has an invalid type")
+			continue
+		}
+		cmd := exec.Command(m.config.PerfCmd, "stat", "--null", "-e", metric.Event, "hostname")
+		cclog.ComponentDebug(m.name, "Running", cmd.String())
+		err := cmd.Run()
+		if err != nil {
+			cclog.ComponentError(m.name, "Event", metric.Event, "not available in perf", err.Error())
+		} else {
+			valid_metrics = append(valid_metrics, &m.config.Metrics[i])
+		}
+	}
+	if len(valid_metrics) == 0 {
+		return errors.New("no configured metric available through perf")
+	}
+
+	IntToStringList := func(ilist []int) []string {
+		list := make([]string, 0)
+		for _, i := range ilist {
+			list = append(list, fmt.Sprintf("%v", i))
+		}
+		return list
+	}
+
+	m.metrics = make(map[string]*PerfCmdCollectorEventConfig, 0)
+	for _, metric := range valid_metrics {
+		metric.collectorMeta = &m.meta
+		metric.collectorTags = &m.tags
+		metric.useCpus = make(map[int][]int)
+		tlist := topo.GetTypeList(metric.Type)
+		cclog.ComponentDebug(m.name, "Metric", metric.Metric, "with type", metric.Type, ":", strings.Join(IntToStringList(tlist), ","))
+
+		for _, t := range tlist {
+			metric.useCpus[t] = topo.GetTypeHwthreads(metric.Type, t)
+			cclog.ComponentDebug(m.name, "Metric", metric.Metric, "with type", metric.Type, "and ID", t, ":", strings.Join(IntToStringList(metric.useCpus[t]), ","))
+		}
+
+		m.metrics[metric.Event] = metric
+		valid_events = append(valid_events, metric.Event)
+	}
+	m.perfEventString = strings.Join(valid_events, ",")
+	cclog.ComponentDebug(m.name, "perfEventString", m.perfEventString)
+
+	// Set this flag only if everything is initialized properly, all required files exist, ...
+	m.init = true
+	return err
+}
+
+type PerfEventJson struct {
+	CounterValue string `json:"counter-value"`
+	counterValue float64
+	MetricValue  string `json:"metric-value"`
+	metricValue  float64
+	CounterUnit  string `json:"unit"`
+	counterUnit  string
+	MetricUnit   string `json:"metric-unit"`
+	metricUnit   string
+	Cpu          string `json:"cpu,omitempty"`
+	cpu          int
+	Event        string  `json:"event"`
+	Runtime      uint64  `json:"event-runtime"`
+	PcntRunning  float64 `json:"pcnt-running"`
+	metrictypeid string
+	metrictype   string
+	metricname   string
+	publish      bool
+}
+
+func parseEvent(line string) (*PerfEventJson, error) {
+	data := PerfEventJson{}
+
+	tmp := perf_number_regex.ReplaceAllString(line, `$1.$2`)
+	err := json.Unmarshal([]byte(tmp), &data)
+	if err != nil {
+		return nil, err
+	}
+	if len(data.CounterValue) > 0 && data.CounterValue != PERF_NOT_COUNTED {
+		val, err := strconv.ParseFloat(data.CounterValue, 64)
+		if err == nil {
+			if data.PcntRunning != 100.0 {
+				val = (val / data.PcntRunning) * 100
+			}
+			data.counterValue = val
+		}
+	}
+	if len(data.MetricValue) > 0 && data.MetricValue != PERF_NOT_COUNTED {
+		val, err := strconv.ParseFloat(data.MetricValue, 64)
+		if err == nil {
+			if data.PcntRunning != 100.0 {
+				val = (val / data.PcntRunning) * 100
+			}
+			data.metricValue = val
+		}
+	}
+	if len(data.CounterUnit) > 0 && data.CounterUnit != PERF_UNIT_NULL {
+		data.counterUnit = data.CounterUnit
+	}
+	if len(data.MetricUnit) > 0 && data.MetricUnit != PERF_UNIT_NULL {
+		data.metricUnit = data.MetricUnit
+	}
+	if len(data.Cpu) > 0 {
+		val, err := strconv.ParseInt(data.Cpu, 10, 64)
+		if err == nil {
+			data.cpu = int(val)
+		}
+	}
+
+	return &data, nil
+}
+
+func perfdataToMetric(data *PerfEventJson, config *PerfCmdCollectorEventConfig, timestamp time.Time) (lp.CCMetric, error) {
+	metric, err := lp.NewMetric(config.Metric, *config.collectorTags, *config.collectorMeta, data.counterValue, timestamp)
+	if err == nil {
+		metric.AddTag("type", data.metrictype)
+		if data.metrictype != "node" {
+			metric.AddTag("type-id", data.metrictypeid)
+		}
+		for k, v := range config.Tags {
+			metric.AddTag(k, v)
+		}
+		for k, v := range config.Meta {
+			metric.AddMeta(k, v)
+		}
+		if len(config.Unit) > 0 {
+			metric.AddMeta("unit", config.Unit)
+		}
+		if config.UsePerfUnit && (!metric.HasMeta("unit")) && (!metric.HasTag("unit")) {
+			var unit string = ""
+			if len(data.counterUnit) > 0 {
+				unit = data.counterUnit
+			} else if len(data.metricUnit) > 0 {
+				unit = data.metricUnit
+			}
+			if len(unit) > 0 {
+				metric.AddMeta("unit", unit)
+			}
+		}
+		return metric, nil
+	}
+	return nil, err
+}
+
+// Read collects all metrics belonging to the sample collector
+// and sends them through the output channel to the collector manager
+func (m *PerfCmdCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	perfdata := make([]*PerfEventJson, 0)
+	// Create a sample metric
+	timestamp := time.Now()
+
+	cmd := exec.Command(m.config.PerfCmd, "stat", "-A", "-a", "-j", "-e", m.perfEventString, "/usr/bin/sleep", fmt.Sprintf("%d", int(interval.Seconds())))
+
+	cclog.ComponentDebug(m.name, "Running", cmd.String())
+	out, err := cmd.CombinedOutput()
+	if err == nil {
+		sout := strings.TrimSpace(string(out))
+		for _, l := range strings.Split(sout, "\n") {
+			d, err := parseEvent(l)
+			if err == nil {
+				perfdata = append(perfdata, d)
+			}
+		}
+	} else {
+		cclog.ComponentError(m.name, "Execution of", cmd.String(), "failed with", err.Error())
+	}
+
+	metricData := make([]*PerfEventJson, 0)
+	for _, metricTmp := range m.config.Metrics {
+		metricConfig := m.metrics[metricTmp.Event]
+		for t, clist := range metricConfig.useCpus {
+			val := float64(0)
+			sum := float64(0)
+			min := math.MaxFloat64
+			max := float64(0)
+			count := 0
+			cunit := ""
+			munit := ""
+			for _, c := range clist {
+				for _, d := range perfdata {
+					if strings.HasPrefix(d.Event, metricConfig.Event) && d.cpu == c {
+						//cclog.ComponentDebug(m.name, "do calc on CPU", c, ":", d.counterValue)
+						sum += d.counterValue
+						if d.counterValue < min {
+							min = d.counterValue
+						}
+						if d.counterValue > max {
+							max = d.counterValue
+						}
+						count++
+						cunit = d.counterUnit
+						munit = d.metricUnit
+					}
+				}
+			}
+			if metricConfig.TypeAgg == "sum" {
+				val = sum
+			} else if metricConfig.TypeAgg == "min" {
+				val = min
+			} else if metricConfig.TypeAgg == "max" {
+				val = max
+			} else if metricConfig.TypeAgg == "avg" || metricConfig.TypeAgg == "mean" {
+				val = sum / float64(count)
+			} else {
+				val = sum
+			}
+			//cclog.ComponentDebug(m.name, "Metric", metricConfig.Metric, "type", metricConfig.Type, "ID", t, ":", val)
+			metricData = append(metricData, &PerfEventJson{
+				Event:        metricConfig.Event,
+				metricname:   metricConfig.Metric,
+				metrictype:   metricConfig.Type,
+				metrictypeid: fmt.Sprintf("%v", t),
+				counterValue: val,
+				metricValue:  0,
+				metricUnit:   munit,
+				counterUnit:  cunit,
+				publish:      metricConfig.Publish,
+			})
+		}
+
+	}
+
+	for _, d := range metricData {
+		if d.publish {
+			m, err := perfdataToMetric(d, m.metrics[d.Event], timestamp)
+			if err == nil {
+				output <- m
+			}
+		}
+	}
+
+}
+
+// Close metric collector: close network connection, close files, close libraries, ...
+// Called once by the collector manager
+func (m *PerfCmdCollector) Close() {
+	// Unset flag
+	m.init = false
+}

collectors/perfCmdMetric.md

@@ -0,0 +1,54 @@
+# PerfCmdMetric collector
+
+
+## Configuration
+
+```json
+{
+    "perf_command": "perf",
+    "metrics" : [
+        {
+            "name": "cpu_cycles",
+            "event": "cycles",
+            "unit": "Hz",
+            "type": "hwthread",
+            "publish": true,
+            "use_perf_unit": false,
+            "type_aggregation": "socket",
+            "tags": {
+                "tags_just" : "for_the_event"
+            },
+            "meta": {
+                "meta_info_just" : "for_the_event"
+            }
+        }
+    ],
+    "expressions": [
+        {
+            "metric": "avg_cycles_per_second",
+            "expression": "cpu_cycles / time",
+            "type": "node",
+            "type_aggregation": "avg",
+            "publish": true
+        }
+    ]
+}
+```
+
+- `perf_command`: Path to the `perf` command. If it is not an absolute path, the command is looked up in `$PATH`.
+- `metrics`: List of metrics to measure
+    - `name`: Name of metric for output and expressions
+    - `event`: Event as supplied to `perf stat -e <event>` like `cycles` or `uncore_imc_0/event=0x01,umask=0x00/`
+    - `unit` : Unit for the metric. Will be added as meta information thus similar then adding `"meta" : {"unit": "myunit"}`.
+    - `type`: Do measurments at this level (`hwthread` and `socket` are the most common ones).
+    - `publish`: Publish the metric or use it only for expressions.
+    - `use_perf_unit`: For some events, `perf` outputs a unit. With this switch, the unit provided by `perf` is added as meta informations.
+    - `type_aggregation`: Sum the metric values to the given type
+    - `tags`: Tags just for this metric
+    - `meta`: Meta informations just for this metric
+- `expressions`: Calculate metrics out of multiple measurements
+    - `metric`: Name of metric for output
+    - `expression`: What should be calculated
+    - `type`: Aggregate the expression results to this level
+    - `type_aggregation`: Aggregate the expression results with `sum`, `min`, `max`, `avg` or `mean`
+    - `publish`: Publish metric

collectors/perfEventMetric.go

@@ -0,0 +1,481 @@
+package collectors
+
+/*
+#cgo CFLAGS: -I/usr/include
+#cgo LDFLAGS: -Wl,--unresolved-symbols=ignore-in-object-files
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <linux/perf_event.h>
+#include <linux/hw_breakpoint.h>
+#include <sys/ioctl.h>
+#include <syscall.h>
+#include <string.h>
+#include <errno.h>
+
+typedef enum {
+	PERF_EVENT_WITH_CONFIG1 = (1<<0),
+	PERF_EVENT_WITH_CONFIG2 = (1<<1),
+	PERF_EVENT_WITH_EXCLUDE_KERNEL = (1<<2),
+	PERF_EVENT_WITH_EXCLUDE_HV = (1<<3),
+} PERF_EVENT_FLAG;
+
+int perf_event_open(int type, uint64_t config, int cpu, uint64_t config1, uint64_t config2, int uncore)
+{
+	int ret;
+	struct perf_event_attr attr;
+
+	memset(&attr, 0, sizeof(struct perf_event_attr));
+	attr.type = type;
+	attr.config = config;
+	if (!uncore) {
+		attr.exclude_kernel = 1;
+		attr.exclude_hv = 1;
+	}
+	//attr.disabled = 1;
+	//
+	// if (config1 > 0)
+	// {
+	// 	attr.config1 = config1;
+	// }
+	// if (config2 > 0)
+	// {
+	// 	attr.config2 = config2;
+	// }
+	// if (flags & PERF_EVENT_WITH_CONFIG1)
+	// {
+	// 	attr.config1 = config1;
+	// }
+	// if (flags & PERF_EVENT_WITH_CONFIG2)
+	// {
+	// 	attr.config2 = config2;
+	// }
+	// if (flags & PERF_EVENT_WITH_EXCLUDE_KERNEL)
+	// {
+	// 	attr.exclude_kernel = 1;
+	// }
+	// if (flags & PERF_EVENT_WITH_EXCLUDE_HV)
+	// {
+	// 	attr.exclude_hv = 1;
+	// }
+
+
+
+	ret = syscall(__NR_perf_event_open, &attr, -1, cpu, -1, 0);
+	if (ret < 0)
+	{
+		return -errno;
+	}
+	return 0;
+}
+
+int perf_event_stop(int fd)
+{
+	return ioctl(fd, PERF_EVENT_IOC_DISABLE, 0);
+}
+
+
+int perf_event_start(int fd)
+{
+	return ioctl(fd, PERF_EVENT_IOC_ENABLE, 0);
+}
+
+int perf_event_reset(int fd)
+{
+	return ioctl(fd, PERF_EVENT_IOC_RESET, 0);
+}
+
+int perf_event_read(int fd, uint64_t *data)
+{
+	int ret = 0;
+
+	ret = read(fd, data, sizeof(uint64_t));
+	if (ret != sizeof(uint64_t))
+	{
+		return -errno;
+	}
+	return 0;
+}
+
+int perf_event_close(int fd)
+{
+	close(fd);
+}
+
+*/
+import "C"
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"os"
+	"path"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	"github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
+)
+
+const SYSFS_PERF_EVENT_PATH = `/sys/devices`
+
+type PerfEventCollectorEventConfig struct {
+	Name              string `json:"name"`
+	Unit              string `json:"unit,omitempty"`
+	unitType          int
+	Config            string `json:"config"`
+	config            C.uint64_t
+	Config1           string `json:"config1,omitempty"`
+	config1           C.uint64_t
+	Config2           string `json:"config2,omitempty"`
+	config2           C.uint64_t
+	ExcludeKernel     bool              `json:"exclude_kernel,omitempty"`
+	ExcludeHypervisor bool              `json:"exclude_hypervisor,omitempty"`
+	Tags              map[string]string `json:"tags,omitempty"`
+	Meta              map[string]string `json:"meta,omitempty"`
+	PerHwthread       bool              `json:"per_hwthread,omitempty"`
+	PerSocket         bool              `json:"per_socket,omitempty"`
+	ScaleFile         string            `json:"scale_file,omitempty"`
+	scaling_factor    float64
+	flags             uint64
+	valid             bool
+	cpumask           []int
+}
+
+type PerfEventCollectorEventData struct {
+	fd        C.int
+	last      uint64
+	last_diff uint64
+	idx       int
+}
+
+type PerfEventCollectorConfig struct {
+	Events []PerfEventCollectorEventConfig `json:"events"`
+	events []PerfEventCollectorEventConfig
+}
+
+type PerfEventCollector struct {
+	metricCollector
+	config PerfEventCollectorConfig // the configuration structure
+	meta   map[string]string        // default meta information
+	tags   map[string]string        // default tags
+	events map[int]map[int]PerfEventCollectorEventData
+}
+
+func UpdateEventConfig(event *PerfEventCollectorEventConfig) error {
+	parseHexNumber := func(number string) (uint64, error) {
+		snum := strings.Trim(number, "\n")
+		snum = strings.Replace(snum, "0x", "", -1)
+		snum = strings.Replace(snum, "0X", "", -1)
+		return strconv.ParseUint(snum, 16, 64)
+	}
+	if len(event.Unit) == 0 {
+		event.Unit = "cpu"
+	}
+
+	unitpath := path.Join(SYSFS_PERF_EVENT_PATH, event.Unit)
+	if _, err := os.Stat(unitpath); err != nil {
+		return err
+	}
+	typefile := path.Join(unitpath, "type")
+	if _, err := os.Stat(typefile); err != nil {
+		return err
+	}
+	typebytes, err := os.ReadFile(typefile)
+	if err != nil {
+		return err
+	}
+	typestring := string(typebytes)
+	ut, err := strconv.ParseUint(strings.Trim(typestring, "\n"), 10, 64)
+	if err != nil {
+		return err
+	}
+	event.unitType = int(ut)
+
+	if len(event.Config) > 0 {
+		x, err := parseHexNumber(event.Config)
+		if err != nil {
+			return err
+		}
+		event.config = C.uint64_t(x)
+	}
+	if len(event.Config1) > 0 {
+		x, err := parseHexNumber(event.Config1)
+		if err != nil {
+			return err
+		}
+		event.config1 = C.uint64_t(x)
+	}
+	if len(event.Config2) > 0 {
+		x, err := parseHexNumber(event.Config2)
+		if err != nil {
+			return err
+		}
+		event.config2 = C.uint64_t(x)
+	}
+	if len(event.ScaleFile) > 0 {
+		if _, err := os.Stat(event.ScaleFile); err != nil {
+			return err
+		}
+		scalebytes, err := os.ReadFile(event.ScaleFile)
+		if err != nil {
+			return err
+		}
+		x, err := strconv.ParseFloat(string(scalebytes), 64)
+		if err != nil {
+			return err
+		}
+		event.scaling_factor = x
+	}
+	event.cpumask = make([]int, 0)
+	cpumaskfile := path.Join(unitpath, "cpumask")
+	if _, err := os.Stat(cpumaskfile); err == nil {
+
+		cpumaskbytes, err := os.ReadFile(cpumaskfile)
+		if err != nil {
+			return err
+		}
+		cpumaskstring := strings.Trim(string(cpumaskbytes), "\n")
+		cclog.Debug("cpumask", cpumaskstring)
+		for _, part := range strings.Split(cpumaskstring, ",") {
+			start := 0
+			end := 0
+			count, _ := fmt.Sscanf(part, "%d-%d", &start, &end)
+			cclog.Debug("scanf", count, " s ", start, " e ", end)
+
+			if count == 1 {
+				cclog.Debug("adding ", start)
+				event.cpumask = append(event.cpumask, start)
+			} else if count == 2 {
+				for i := start; i <= end; i++ {
+					cclog.Debug("adding ", i)
+					event.cpumask = append(event.cpumask, i)
+				}
+			}
+
+		}
+	} else {
+		event.cpumask = append(event.cpumask, ccTopology.CpuList()...)
+	}
+
+	event.valid = true
+	return nil
+}
+
+func (m *PerfEventCollector) Init(config json.RawMessage) error {
+	var err error = nil
+
+	m.name = "PerfEventCollector"
+
+	m.setup()
+
+	m.parallel = false
+
+	m.meta = map[string]string{"source": m.name, "group": "PerfCounter"}
+
+	m.tags = map[string]string{"type": "node"}
+
+	cpudata := ccTopology.CpuData()
+
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			cclog.ComponentError(m.name, "Error reading config:", err.Error())
+			return err
+		}
+	}
+
+	for i, e := range m.config.Events {
+		err = UpdateEventConfig(&e)
+		if err != nil {
+			cclog.ComponentError(m.name, "Checks for event unit", e.Name, "failed:", err.Error())
+		}
+		m.config.Events[i] = e
+	}
+	total := 0
+	m.events = make(map[int]map[int]PerfEventCollectorEventData)
+	for _, hwt := range cpudata {
+		cclog.ComponentDebug(m.name, "Adding events for cpuid", hwt.CpuID)
+		hwt_events := make(map[int]PerfEventCollectorEventData)
+		for j, e := range m.config.Events {
+			if e.valid {
+				if _, ok := intArrayContains(e.cpumask, hwt.CpuID); ok {
+					cclog.ComponentDebug(m.name, "Adding event", e.Name, fmt.Sprintf("(cpuid %d unit %s(%d) config %s config1 %s config2 %s)",
+						hwt.CpuID,
+						e.Unit,
+						e.unitType,
+						e.Config,
+						e.Config1,
+						e.Config2,
+					))
+					// (int type, uint64_t config, int cpu, uint64_t config1, uint64_t config2, int uncore)
+					fd := C.perf_event_open(C.int(e.unitType), e.config, C.int(hwt.CpuID), e.config1, e.config2, C.int(1))
+					if fd < 0 {
+						cclog.ComponentError(m.name, "Failed to create event", e.Name, ":", fd)
+						continue
+					}
+					hwt_events[j] = PerfEventCollectorEventData{
+						idx:  j,
+						fd:   fd,
+						last: 0,
+					}
+					total++
+				} else {
+					cclog.ComponentDebug(m.name, "Cpu not in cpumask of unit", e.cpumask)
+					hwt_events[j] = PerfEventCollectorEventData{
+						idx:  j,
+						fd:   -1,
+						last: 0,
+					}
+				}
+			} else {
+				cclog.ComponentError(m.name, "Event", e.Name, "not valid")
+			}
+		}
+		cclog.ComponentDebug(m.name, "Adding", len(hwt_events), "events for cpuid", hwt.CpuID)
+		m.events[hwt.CpuID] = hwt_events
+	}
+	if total == 0 {
+		cclog.ComponentError(m.name, "Failed to add events")
+		return errors.New("failed to add events")
+	}
+
+	m.init = true
+	return err
+}
+
+func (m *PerfEventCollector) CalcSocketData() map[int]map[int]interface{} {
+	out := make(map[int]map[int]interface{})
+
+	for cpuid, cpudata := range m.events {
+		for i, eventdata := range cpudata {
+			eventconfig := m.config.Events[i]
+			sid := ccTopology.GetHwthreadSocket(cpuid)
+			if _, ok := out[sid]; !ok {
+				out[sid] = make(map[int]interface{})
+				for i := range cpudata {
+					out[sid][i] = 0
+				}
+			}
+			if eventconfig.scaling_factor != 0 {
+				out[sid][i] = out[sid][i].(float64) + (float64(eventdata.last_diff) * eventconfig.scaling_factor)
+			} else {
+				out[sid][i] = out[sid][i].(uint64) + eventdata.last_diff
+			}
+		}
+	}
+
+	return out
+}
+
+func (m *PerfEventCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+
+	timestamp := time.Now()
+
+	var wg sync.WaitGroup
+
+	for cpuid := range m.events {
+		wg.Add(1)
+		go func(cpuid int, data map[int]map[int]PerfEventCollectorEventData, wg *sync.WaitGroup) {
+			var err error = nil
+			var events map[int]PerfEventCollectorEventData = data[cpuid]
+			for i, e := range events {
+
+				var data C.uint64_t = 0
+				if e.fd < 0 {
+					continue
+				}
+				ret := C.perf_event_read(e.fd, &data)
+				if ret < 0 {
+					event := m.config.Events[i]
+					cclog.ComponentError(m.name, "Failed to read event", event.Name, ":", ret)
+				}
+				if e.last == 0 {
+					cclog.ComponentDebug(m.name, "Updating last value on first iteration")
+					e.last = uint64(data)
+
+				} else {
+					var metric lp.CCMetric
+					event := m.config.Events[i]
+					value := uint64(data) - e.last
+					cclog.ComponentDebug(m.name, "Calculating difference", uint64(data), "-", e.last, "=", uint64(data)-e.last)
+					e.last = uint64(data)
+					e.last_diff = value
+
+					if event.scaling_factor == 0 {
+						metric, err = lp.NewMetric(event.Name, m.tags, m.meta, value, timestamp)
+					} else {
+						var f64_value float64 = float64(value) * event.scaling_factor
+						metric, err = lp.NewMetric(event.Name, m.tags, m.meta, f64_value, timestamp)
+					}
+					//if event.PerHwthread {
+					if err == nil {
+						metric.AddTag("type", "hwthread")
+						metric.AddTag("type-id", fmt.Sprintf("%d", cpuid))
+						for k, v := range event.Tags {
+							metric.AddTag(k, v)
+						}
+						for k, v := range event.Meta {
+							metric.AddMeta(k, v)
+						}
+						output <- metric
+					} else {
+						cclog.ComponentError(m.name, "Failed to create CCMetric for event", event.Name)
+					}
+					//}
+				}
+				events[i] = e
+			}
+			data[cpuid] = events
+			wg.Done()
+		}(cpuid, m.events, &wg)
+	}
+	wg.Wait()
+
+	// 	var data C.uint64_t = 0
+	// 	event := m.config.Events[e.idx]
+	// 	cclog.ComponentDebug(m.name, "Reading event", event.Name)
+	// 	ret := C.perf_event_read(e.fd, &data)
+	// 	if ret < 0 {
+	// 		cclog.ComponentError(m.name, "Failed to read event", event.Name, ":", ret)
+	// 	}
+	// 	if e.last == 0 {
+	// 		cclog.ComponentDebug(m.name, "Updating last value on first iteration")
+	// 		e.last = uint64(data)
+
+	// 	} else {
+	// 		value := uint64(data) - e.last
+	// 		cclog.ComponentDebug(m.name, "Calculating difference", uint64(data), "-", e.last, "=", uint64(data)-e.last)
+	// 		e.last = uint64(data)
+
+	// 		y, err := lp.NewMetric(event.Name, m.tags, m.meta, value, timestamp)
+	// 		if err == nil {
+	// 			for k, v := range event.Tags {
+	// 				y.AddTag(k, v)
+	// 			}
+	// 			for k, v := range event.Meta {
+	// 				y.AddMeta(k, v)
+	// 			}
+	// 			output <- y
+	// 		} else {
+	// 			cclog.ComponentError(m.name, "Failed to create CCMetric for event", event.Name)
+	// 		}
+	// 	}
+	// 	m.events[i] = e
+	// }
+
+}
+
+func (m *PerfEventCollector) Close() {
+
+	for _, events := range m.events {
+		for _, e := range events {
+			C.perf_event_close(e.fd)
+		}
+	}
+	m.init = false
+}

collectors/perfEventMetric.md

@@ -0,0 +1,44 @@
+# `perf_event` collector
+
+This collector uses directly the `perf_event_open` system call to measure events. There is no name to event translation, the configuration has to be as low-level as required by the system call. It allows to aggregate the measurements to topological entities like socket or the whole node.
+
+## Configuration
+
+```json
+{
+    "events" : [
+        {
+            "name" : "instructions",
+            "unit" : "uncore_imc_0",
+            "config": "0x01",
+            "scale_file" : "/sys/devices/<unit>/events/<event>.scale",
+            "per_hwthread": true,
+            "per_socket": true,
+            "exclude_kernel": true,
+            "exclude_hypervisor": true,
+            "tags": {
+                "tags": "just_for_the_event"
+            },
+            "meta": {
+                "meta_info": "just_for_the_event"
+            },
+            "config1": "0x00",
+            "config2": "0x00",
+        }
+    ]
+}
+```
+
+- `events`: List of events to measure
+- `name`: Name for the metric
+- `unit`: Unit of the event or `cpu` if not given. The unit type ID is resolved by reading the file `/sys/devices/<unit>/type`. The unit type ID is then written to the `perf_event_attr` struct member `type`.
+- `config`: Hex value written to the `perf_event_attr` struct member `config`.
+- `config1`: Hex value written to the `perf_event_attr` struct member `config1` (optional).
+- `config2`: Hex value written to the `perf_event_attr` struct member `config1` (optional).
+- `scale_file`: If a measurement requires scaling, like the `power` unit aka RAPL, it is provided by the kernel in a `.scale` file at `/sys/devices/<unit>/events/<event>.scale`.
+- `exclude_kernel`: Exclude the kernel from measurements (default: `true`). It sets the `perf_event_attr` struct member `exclude_kernel`.
+- `exclude_hypervisor`: Exclude the hypervisors from measurements (default: `true`). It sets the `perf_event_attr` struct member `exclude_hypervisor`.
+- `per_hwthread`: Generate metrics per hardware thread (default: `false`)
+- `per_socket`: Generate metrics per hardware thread (default: `false`)
+- `tags`: Tags just for the event.
+- `meta`: Meta information just for the event, often a `unit`

collectors/raplMetric.go

@@ -0,0 +1,262 @@
+package collectors
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+)
+
+// running average power limit (RAPL) monitoring attributes for a zone
+type RAPLZoneInfo struct {
+	// tags describing the RAPL zone:
+	// * zone_name, subzone_name: e.g. psys, dram, core, uncore, package-0
+	// * zone_id: e.g. 0:1 (zone 0 sub zone 1)
+	tags            map[string]string
+	energyFilepath  string    // path to a file containing the zones current energy counter in micro joules
+	energy          int64     // current reading of the energy counter in micro joules
+	energyTimestamp time.Time // timestamp when energy counter was read
+	maxEnergyRange  int64     // Range of the above energy counter in micro-joules
+}
+
+type RAPLCollector struct {
+	metricCollector
+	config struct {
+		// Exclude IDs for RAPL zones, e.g.
+		// * 0 for zone 0
+		// * 0:1 for zone 0 subzone 1
+		ExcludeByID []string `json:"exclude_device_by_id,omitempty"`
+		// Exclude names for RAPL zones, e.g. psys, dram, core, uncore, package-0
+		ExcludeByName []string `json:"exclude_device_by_name,omitempty"`
+	}
+	RAPLZoneInfo []RAPLZoneInfo
+	meta         map[string]string // default meta information
+}
+
+// Init initializes the running average power limit (RAPL) collector
+func (m *RAPLCollector) Init(config json.RawMessage) error {
+
+	// Check if already initialized
+	if m.init {
+		return nil
+	}
+
+	var err error = nil
+	m.name = "RAPLCollector"
+	m.setup()
+	m.parallel = true
+	m.meta = map[string]string{
+		"source": m.name,
+		"group":  "energy",
+		"unit":   "Watt",
+	}
+
+	// Read in the JSON configuration
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			cclog.ComponentError(m.name, "Error reading config:", err.Error())
+			return err
+		}
+	}
+
+	// Configure excluded RAPL zones
+	isIDExcluded := make(map[string]bool)
+	if m.config.ExcludeByID != nil {
+		for _, ID := range m.config.ExcludeByID {
+			isIDExcluded[ID] = true
+		}
+	}
+	isNameExcluded := make(map[string]bool)
+	if m.config.ExcludeByName != nil {
+		for _, name := range m.config.ExcludeByName {
+			isNameExcluded[name] = true
+		}
+	}
+
+	// readZoneInfo reads RAPL monitoring attributes for a zone given by zonePath
+	// See: https://www.kernel.org/doc/html/latest/power/powercap/powercap.html#monitoring-attributes
+	readZoneInfo := func(zonePath string) (z struct {
+		name            string    // zones name e.g. psys, dram, core, uncore, package-0
+		energyFilepath  string    // path to a file containing the zones current energy counter in micro joules
+		energy          int64     // current reading of the energy counter in micro joules
+		energyTimestamp time.Time // timestamp when energy counter was read
+		maxEnergyRange  int64     // Range of the above energy counter in micro-joules
+		ok              bool      // Are all information available?
+	}) {
+		// zones name e.g. psys, dram, core, uncore, package-0
+		foundName := false
+		if v, err :=
+			os.ReadFile(
+				filepath.Join(zonePath, "name")); err == nil {
+			foundName = true
+			z.name = strings.TrimSpace(string(v))
+		}
+
+		// path to a file containing the zones current energy counter in micro joules
+		z.energyFilepath = filepath.Join(zonePath, "energy_uj")
+
+		// current reading of the energy counter in micro joules
+		foundEnergy := false
+		if v, err := os.ReadFile(z.energyFilepath); err == nil {
+			// timestamp when energy counter was read
+			z.energyTimestamp = time.Now()
+			if i, err := strconv.ParseInt(strings.TrimSpace(string(v)), 10, 64); err == nil {
+				foundEnergy = true
+				z.energy = i
+			}
+		}
+
+		// Range of the above energy counter in micro-joules
+		foundMaxEnergyRange := false
+		if v, err :=
+			os.ReadFile(
+				filepath.Join(zonePath, "max_energy_range_uj")); err == nil {
+			if i, err := strconv.ParseInt(strings.TrimSpace(string(v)), 10, 64); err == nil {
+				foundMaxEnergyRange = true
+				z.maxEnergyRange = i
+			}
+		}
+
+		// Are all information available?
+		z.ok = foundName && foundEnergy && foundMaxEnergyRange
+
+		return
+	}
+
+	powerCapPrefix := "/sys/devices/virtual/powercap"
+	controlType := "intel-rapl"
+	controlTypePath := filepath.Join(powerCapPrefix, controlType)
+
+	// Find all RAPL zones
+	zonePrefix := filepath.Join(controlTypePath, controlType+":")
+	zonesPath, err := filepath.Glob(zonePrefix + "*")
+	if err != nil || zonesPath == nil {
+		return fmt.Errorf("unable to find any zones under %s", controlTypePath)
+	}
+
+	for _, zonePath := range zonesPath {
+		zoneID := strings.TrimPrefix(zonePath, zonePrefix)
+		z := readZoneInfo(zonePath)
+		if z.ok &&
+			!isIDExcluded[zoneID] &&
+			!isNameExcluded[z.name] {
+
+			// Add RAPL monitoring attributes for a zone
+			m.RAPLZoneInfo =
+				append(
+					m.RAPLZoneInfo,
+					RAPLZoneInfo{
+						tags: map[string]string{
+							"id":        zoneID,
+							"zone_name": z.name,
+						},
+						energyFilepath:  z.energyFilepath,
+						energy:          z.energy,
+						energyTimestamp: z.energyTimestamp,
+						maxEnergyRange:  z.maxEnergyRange,
+					})
+		}
+
+		// find all sub zones for the given zone
+		subZonePrefix := filepath.Join(zonePath, controlType+":"+zoneID+":")
+		subZonesPath, err := filepath.Glob(subZonePrefix + "*")
+		if err != nil || subZonesPath == nil {
+			continue
+		}
+
+		for _, subZonePath := range subZonesPath {
+			subZoneID := strings.TrimPrefix(subZonePath, subZonePrefix)
+			sz := readZoneInfo(subZonePath)
+			if len(zoneID) > 0 && len(z.name) > 0 &&
+				sz.ok &&
+				!isIDExcluded[zoneID+":"+subZoneID] &&
+				!isNameExcluded[sz.name] {
+				m.RAPLZoneInfo =
+					append(
+						m.RAPLZoneInfo,
+						RAPLZoneInfo{
+							tags: map[string]string{
+								"id":            zoneID + ":" + subZoneID,
+								"zone_name":     z.name,
+								"sub_zone_name": sz.name,
+							},
+							energyFilepath:  sz.energyFilepath,
+							energy:          sz.energy,
+							energyTimestamp: sz.energyTimestamp,
+							maxEnergyRange:  sz.maxEnergyRange,
+						})
+			}
+		}
+	}
+
+	if m.RAPLZoneInfo == nil {
+		return fmt.Errorf("no running average power limit (RAPL) device found in %s", controlTypePath)
+
+	}
+
+	// Initialized
+	cclog.ComponentDebug(
+		m.name,
+		"initialized",
+		len(m.RAPLZoneInfo),
+		"zones with running average power limit (RAPL) monitoring attributes")
+	m.init = true
+
+	return err
+}
+
+// Read reads running average power limit (RAPL) monitoring attributes for all initialized zones
+// See: https://www.kernel.org/doc/html/latest/power/powercap/powercap.html#monitoring-attributes
+func (m *RAPLCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+
+	for i := range m.RAPLZoneInfo {
+		p := &m.RAPLZoneInfo[i]
+
+		// Read current value of the energy counter in micro joules
+		if v, err := os.ReadFile(p.energyFilepath); err == nil {
+			energyTimestamp := time.Now()
+			if i, err := strconv.ParseInt(strings.TrimSpace(string(v)), 10, 64); err == nil {
+				energy := i
+
+				// Compute average power (Δ energy / Δ time)
+				energyDiff := energy - p.energy
+				if energyDiff < 0 {
+					// Handle overflow:
+					// ( p.maxEnergyRange - p.energy ) + energy
+					// = p.maxEnergyRange + ( energy - p.energy )
+					// = p.maxEnergyRange + diffEnergy
+					energyDiff += p.maxEnergyRange
+				}
+				timeDiff := energyTimestamp.Sub(p.energyTimestamp)
+				averagePower := float64(energyDiff) / float64(timeDiff.Microseconds())
+
+				y, err := lp.NewMessage(
+					"rapl_average_power",
+					p.tags,
+					m.meta,
+					map[string]interface{}{"value": averagePower},
+					energyTimestamp)
+				if err == nil {
+					output <- y
+				}
+
+				// Save current energy counter state
+				p.energy = energy
+				p.energyTimestamp = energyTimestamp
+			}
+		}
+	}
+}
+
+// Close closes running average power limit (RAPL) metric collector
+func (m *RAPLCollector) Close() {
+	// Unset flag
+	m.init = false
+}

collectors/raplMetric.md

@@ -0,0 +1,15 @@
+## `rapl` collector
+
+This collector reads running average power limit (RAPL) monitoring attributes to compute average power consumption metrics. See <https://www.kernel.org/doc/html/latest/power/powercap/powercap.html#monitoring-attributes>.
+
+The Likwid metric collector provides similar functionality.
+
+```json
+  "rapl": {
+    "exclude_device_by_id": ["0:1", "0:2"],
+    "exclude_device_by_name": ["psys"]
+  }
+```
+
+Metrics:
+* `rapl_average_power`: average power consumption in Watt. The average is computed over the entire runtime from the last measurement to the current measurement

collectors/rocmsmiMetric.go

@@ -0,0 +1,319 @@
+package collectors
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	"github.com/ClusterCockpit/go-rocm-smi/pkg/rocm_smi"
+)
+
+type RocmSmiCollectorConfig struct {
+	ExcludeMetrics     []string `json:"exclude_metrics,omitempty"`
+	ExcludeDevices     []string `json:"exclude_devices,omitempty"`
+	AddPciInfoTag      bool     `json:"add_pci_info_tag,omitempty"`
+	UsePciInfoAsTypeId bool     `json:"use_pci_info_as_type_id,omitempty"`
+	AddSerialMeta      bool     `json:"add_serial_meta,omitempty"`
+}
+
+type RocmSmiCollectorDevice struct {
+	device         rocm_smi.DeviceHandle
+	index          int
+	tags           map[string]string // default tags
+	meta           map[string]string // default meta information
+	excludeMetrics map[string]bool   // copy of exclude metrics from config
+}
+
+type RocmSmiCollector struct {
+	metricCollector
+	config  RocmSmiCollectorConfig // the configuration structure
+	devices []RocmSmiCollectorDevice
+}
+
+// Functions to implement MetricCollector interface
+// Init(...), Read(...), Close()
+// See: metricCollector.go
+
+// Init initializes the sample collector
+// Called once by the collector manager
+// All tags, meta data tags and metrics that do not change over the runtime should be set here
+func (m *RocmSmiCollector) Init(config json.RawMessage) error {
+	var err error = nil
+	// Always set the name early in Init() to use it in cclog.Component* functions
+	m.name = "RocmSmiCollector"
+	// This is for later use, also call it early
+	m.setup()
+	// Define meta information sent with each metric
+	// (Can also be dynamic or this is the basic set with extension through AddMeta())
+	//m.meta = map[string]string{"source": m.name, "group": "AMD"}
+	// Define tags sent with each metric
+	// The 'type' tag is always needed, it defines the granulatity of the metric
+	// node -> whole system
+	// socket -> CPU socket (requires socket ID as 'type-id' tag)
+	// cpu -> single CPU hardware thread (requires cpu ID as 'type-id' tag)
+	//m.tags = map[string]string{"type": "node"}
+	// Read in the JSON configuration
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			cclog.ComponentError(m.name, "Error reading config:", err.Error())
+			return err
+		}
+	}
+
+	ret := rocm_smi.Init()
+	if ret != rocm_smi.STATUS_SUCCESS {
+		err = errors.New("failed to initialize ROCm SMI library")
+		cclog.ComponentError(m.name, err.Error())
+		return err
+	}
+
+	numDevs, ret := rocm_smi.NumMonitorDevices()
+	if ret != rocm_smi.STATUS_SUCCESS {
+		err = errors.New("failed to get number of GPUs from ROCm SMI library")
+		cclog.ComponentError(m.name, err.Error())
+		return err
+	}
+
+	exclDev := func(s string) bool {
+		skip_device := false
+		for _, excl := range m.config.ExcludeDevices {
+			if excl == s {
+				skip_device = true
+				break
+			}
+		}
+		return skip_device
+	}
+
+	m.devices = make([]RocmSmiCollectorDevice, 0)
+
+	for i := 0; i < numDevs; i++ {
+		str_i := fmt.Sprintf("%d", i)
+		if exclDev(str_i) {
+			continue
+		}
+		device, ret := rocm_smi.DeviceGetHandleByIndex(i)
+		if ret != rocm_smi.STATUS_SUCCESS {
+			err = fmt.Errorf("failed to get handle for GPU %d", i)
+			cclog.ComponentError(m.name, err.Error())
+			return err
+		}
+
+		pciInfo, ret := rocm_smi.DeviceGetPciInfo(device)
+		if ret != rocm_smi.STATUS_SUCCESS {
+			err = fmt.Errorf("failed to get PCI information for GPU %d", i)
+			cclog.ComponentError(m.name, err.Error())
+			return err
+		}
+
+		pciId := fmt.Sprintf(
+			"%08X:%02X:%02X.%X",
+			pciInfo.Domain,
+			pciInfo.Bus,
+			pciInfo.Device,
+			pciInfo.Function)
+
+		if exclDev(pciId) {
+			continue
+		}
+
+		dev := RocmSmiCollectorDevice{
+			device: device,
+			tags: map[string]string{
+				"type":    "accelerator",
+				"type-id": str_i,
+			},
+			meta: map[string]string{
+				"source": m.name,
+				"group":  "AMD",
+			},
+		}
+		if m.config.UsePciInfoAsTypeId {
+			dev.tags["type-id"] = pciId
+		} else if m.config.AddPciInfoTag {
+			dev.tags["pci_identifier"] = pciId
+		}
+
+		if m.config.AddSerialMeta {
+			serial, ret := rocm_smi.DeviceGetSerialNumber(device)
+			if ret != rocm_smi.STATUS_SUCCESS {
+				cclog.ComponentError(m.name, "Unable to get serial number for device at index", i, ":", rocm_smi.StatusStringNoError(ret))
+			} else {
+				dev.meta["serial"] = serial
+			}
+		}
+		// Add excluded metrics
+		dev.excludeMetrics = map[string]bool{}
+		for _, e := range m.config.ExcludeMetrics {
+			dev.excludeMetrics[e] = true
+		}
+		dev.index = i
+		m.devices = append(m.devices, dev)
+	}
+
+	// Set this flag only if everything is initialized properly, all required files exist, ...
+	m.init = true
+	return err
+}
+
+// Read collects all metrics belonging to the sample collector
+// and sends them through the output channel to the collector manager
+func (m *RocmSmiCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	// Create a sample metric
+	timestamp := time.Now()
+
+	for _, dev := range m.devices {
+		metrics, ret := rocm_smi.DeviceGetMetrics(dev.device)
+		if ret != rocm_smi.STATUS_SUCCESS {
+			cclog.ComponentError(m.name, "Unable to get metrics for device at index", dev.index, ":", rocm_smi.StatusStringNoError(ret))
+			continue
+		}
+
+		if !dev.excludeMetrics["rocm_gfx_util"] {
+			value := metrics.Average_gfx_activity
+			y, err := lp.NewMessage("rocm_gfx_util", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_umc_util"] {
+			value := metrics.Average_umc_activity
+			y, err := lp.NewMessage("rocm_umc_util", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_mm_util"] {
+			value := metrics.Average_mm_activity
+			y, err := lp.NewMessage("rocm_mm_util", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_avg_power"] {
+			value := metrics.Average_socket_power
+			y, err := lp.NewMessage("rocm_avg_power", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_temp_mem"] {
+			value := metrics.Temperature_mem
+			y, err := lp.NewMessage("rocm_temp_mem", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_temp_hotspot"] {
+			value := metrics.Temperature_hotspot
+			y, err := lp.NewMessage("rocm_temp_hotspot", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_temp_edge"] {
+			value := metrics.Temperature_edge
+			y, err := lp.NewMessage("rocm_temp_edge", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_temp_vrgfx"] {
+			value := metrics.Temperature_vrgfx
+			y, err := lp.NewMessage("rocm_temp_vrgfx", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_temp_vrsoc"] {
+			value := metrics.Temperature_vrsoc
+			y, err := lp.NewMessage("rocm_temp_vrsoc", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_temp_vrmem"] {
+			value := metrics.Temperature_vrmem
+			y, err := lp.NewMessage("rocm_temp_vrmem", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_gfx_clock"] {
+			value := metrics.Average_gfxclk_frequency
+			y, err := lp.NewMessage("rocm_gfx_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_soc_clock"] {
+			value := metrics.Average_socclk_frequency
+			y, err := lp.NewMessage("rocm_soc_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_u_clock"] {
+			value := metrics.Average_uclk_frequency
+			y, err := lp.NewMessage("rocm_u_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_v0_clock"] {
+			value := metrics.Average_vclk0_frequency
+			y, err := lp.NewMessage("rocm_v0_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_v1_clock"] {
+			value := metrics.Average_vclk1_frequency
+			y, err := lp.NewMessage("rocm_v1_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_d0_clock"] {
+			value := metrics.Average_dclk0_frequency
+			y, err := lp.NewMessage("rocm_d0_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_d1_clock"] {
+			value := metrics.Average_dclk1_frequency
+			y, err := lp.NewMessage("rocm_d1_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+		if !dev.excludeMetrics["rocm_temp_hbm"] {
+			for i := 0; i < rocm_smi.NUM_HBM_INSTANCES; i++ {
+				value := metrics.Temperature_hbm[i]
+				y, err := lp.NewMessage("rocm_temp_hbm", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+				if err == nil {
+					y.AddTag("stype", "device")
+					y.AddTag("stype-id", fmt.Sprintf("%d", i))
+					output <- y
+				}
+			}
+		}
+	}
+
+}
+
+// Close metric collector: close network connection, close files, close libraries, ...
+// Called once by the collector manager
+func (m *RocmSmiCollector) Close() {
+	// Unset flag
+	ret := rocm_smi.Shutdown()
+	if ret != rocm_smi.STATUS_SUCCESS {
+		cclog.ComponentError(m.name, "Failed to shutdown ROCm SMI library")
+	}
+	m.init = false
+}

collectors/rocmsmiMetric.md

@@ -0,0 +1,47 @@
+
+## `rocm_smi` collector
+
+```json
+  "rocm_smi": {
+    "exclude_devices": [
+      "0","1", "0000000:ff:01.0"
+    ],
+    "exclude_metrics": [
+      "rocm_mm_util",
+      "rocm_temp_vrsoc"
+    ],
+    "use_pci_info_as_type_id": true,
+    "add_pci_info_tag": false,
+    "add_serial_meta": false,
+  }
+```
+
+The `rocm_smi` collector can be configured to leave out specific devices with the `exclude_devices` option. It takes logical IDs in the list of available devices or the PCI address similar to NVML format (`%08X:%02X:%02X.0`). Metrics (listed below) that should not be sent to the MetricRouter can be excluded with the `exclude_metrics` option. 
+
+The metrics sent by the `rocm_smi` collector use `accelerator` as `type` tag. For the `type-id`, it uses the device handle index by default. With the `use_pci_info_as_type_id` option, the PCI ID is used instead. If both values should be added as tags, activate the `add_pci_info_tag` option. It uses the device handle index as `type-id` and adds the PCI ID as separate `pci_identifier` tag.
+
+Optionally, it is possible to add the serial to the meta informations. They are not sent to the sinks (if not configured otherwise).
+
+
+Metrics:
+* `rocm_gfx_util`
+* `rocm_umc_util`
+* `rocm_mm_util`
+* `rocm_avg_power`
+* `rocm_temp_mem`
+* `rocm_temp_hotspot`
+* `rocm_temp_edge`
+* `rocm_temp_vrgfx`
+* `rocm_temp_vrsoc`
+* `rocm_temp_vrmem`
+* `rocm_gfx_clock`
+* `rocm_soc_clock`
+* `rocm_u_clock`
+* `rocm_v0_clock`
+* `rocm_v1_clock`
+* `rocm_d0_clock`
+* `rocm_d1_clock`
+* `rocm_temp_hbm`
+
+
+Some metrics add the additional sub type tag (`stype`) like the `rocm_temp_hbm` metrics set `stype=device,stype-id=<HBM_slice_number>`. 

collectors/sampleMetric.go

@@ -0,0 +1,101 @@
+package collectors
+
+import (
+	"encoding/json"
+	"time"
+
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+)
+
+// These are the fields we read from the JSON configuration
+type SampleCollectorConfig struct {
+	Interval string `json:"interval"`
+}
+
+// This contains all variables we need during execution and the variables
+// defined by metricCollector (name, init, ...)
+type SampleCollector struct {
+	metricCollector
+	config SampleCollectorConfig // the configuration structure
+	meta   map[string]string     // default meta information
+	tags   map[string]string     // default tags
+}
+
+// Functions to implement MetricCollector interface
+// Init(...), Read(...), Close()
+// See: metricCollector.go
+
+// Init initializes the sample collector
+// Called once by the collector manager
+// All tags, meta data tags and metrics that do not change over the runtime should be set here
+func (m *SampleCollector) Init(config json.RawMessage) error {
+	var err error = nil
+	// Always set the name early in Init() to use it in cclog.Component* functions
+	m.name = "SampleCollector"
+	// This is for later use, also call it early
+	m.setup()
+	// Tell whether the collector should be run in parallel with others (reading files, ...)
+	// or it should be run serially, mostly for collectors actually doing measurements
+	// because they should not measure the execution of the other collectors
+	m.parallel = true
+	// Define meta information sent with each metric
+	// (Can also be dynamic or this is the basic set with extension through AddMeta())
+	m.meta = map[string]string{"source": m.name, "group": "SAMPLE"}
+	// Define tags sent with each metric
+	// The 'type' tag is always needed, it defines the granularity of the metric
+	// node -> whole system
+	// socket -> CPU socket (requires socket ID as 'type-id' tag)
+	// die -> CPU die (requires CPU die ID as 'type-id' tag)
+	// memoryDomain -> NUMA domain (requires NUMA domain ID as 'type-id' tag)
+	// llc -> Last level cache (requires last level cache ID as 'type-id' tag)
+	// core -> single CPU core that may consist of multiple hardware threads (SMT) (requires core ID as 'type-id' tag)
+	// hwthtread -> single CPU hardware thread (requires hardware thread ID as 'type-id' tag)
+	// accelerator -> A accelerator device like GPU or FPGA (requires an accelerator ID as 'type-id' tag)
+	m.tags = map[string]string{"type": "node"}
+	// Read in the JSON configuration
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			cclog.ComponentError(m.name, "Error reading config:", err.Error())
+			return err
+		}
+	}
+
+	// Set up everything that the collector requires during the Read() execution
+	// Check files required, test execution of some commands, create data structure
+	// for all topological entities (sockets, NUMA domains, ...)
+	// Return some useful error message in case of any failures
+
+	// Set this flag only if everything is initialized properly, all required files exist, ...
+	m.init = true
+	return err
+}
+
+// Read collects all metrics belonging to the sample collector
+// and sends them through the output channel to the collector manager
+func (m *SampleCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	// Create a sample metric
+	timestamp := time.Now()
+
+	value := 1.0
+	// If you want to measure something for a specific amount of time, use interval
+	// start := readState()
+	// time.Sleep(interval)
+	// stop := readState()
+	// value = (stop - start) / interval.Seconds()
+
+	y, err := lp.NewMessage("sample_metric", m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
+	if err == nil {
+		// Send it to output channel
+		output <- y
+	}
+
+}
+
+// Close metric collector: close network connection, close files, close libraries, ...
+// Called once by the collector manager
+func (m *SampleCollector) Close() {
+	// Unset flag
+	m.init = false
+}

collectors/sampleTimerMetric.go

@@ -0,0 +1,122 @@
+package collectors
+
+import (
+	"encoding/json"
+	"sync"
+	"time"
+
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+)
+
+// These are the fields we read from the JSON configuration
+type SampleTimerCollectorConfig struct {
+	Interval string `json:"interval"`
+}
+
+// This contains all variables we need during execution and the variables
+// defined by metricCollector (name, init, ...)
+type SampleTimerCollector struct {
+	metricCollector
+	wg       sync.WaitGroup             // sync group for management
+	done     chan bool                  // channel for management
+	meta     map[string]string          // default meta information
+	tags     map[string]string          // default tags
+	config   SampleTimerCollectorConfig // the configuration structure
+	interval time.Duration              // the interval parsed from configuration
+	ticker   *time.Ticker               // own timer
+	output   chan lp.CCMessage          // own internal output channel
+}
+
+func (m *SampleTimerCollector) Init(name string, config json.RawMessage) error {
+	var err error = nil
+	// Always set the name early in Init() to use it in cclog.Component* functions
+	m.name = "SampleTimerCollector"
+	// This is for later use, also call it early
+	m.setup()
+	// Define meta information sent with each metric
+	// (Can also be dynamic or this is the basic set with extension through AddMeta())
+	m.meta = map[string]string{"source": m.name, "group": "SAMPLE"}
+	// Define tags sent with each metric
+	// The 'type' tag is always needed, it defines the granularity of the metric
+	// node -> whole system
+	// socket -> CPU socket (requires socket ID as 'type-id' tag)
+	// cpu -> single CPU hardware thread (requires cpu ID as 'type-id' tag)
+	m.tags = map[string]string{"type": "node"}
+	// Read in the JSON configuration
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			cclog.ComponentError(m.name, "Error reading config:", err.Error())
+			return err
+		}
+	}
+	// Parse the read interval duration
+	m.interval, err = time.ParseDuration(m.config.Interval)
+	if err != nil {
+		cclog.ComponentError(m.name, "Error parsing interval:", err.Error())
+		return err
+	}
+
+	// Storage for output channel
+	m.output = nil
+	// Management channel for the timer function.
+	m.done = make(chan bool)
+	// Create the own ticker
+	m.ticker = time.NewTicker(m.interval)
+
+	// Start the timer loop with return functionality by sending 'true' to the done channel
+	m.wg.Add(1)
+	go func() {
+		select {
+		case <-m.done:
+			// Exit the timer loop
+			cclog.ComponentDebug(m.name, "Closing...")
+			m.wg.Done()
+			return
+		case timestamp := <-m.ticker.C:
+			// This is executed every timer tick but we have to wait until the first
+			// Read() to get the output channel
+			if m.output != nil {
+				m.ReadMetrics(timestamp)
+			}
+		}
+	}()
+
+	// Set this flag only if everything is initialized properly, all required files exist, ...
+	m.init = true
+	return err
+}
+
+// This function is called at each interval timer tick
+func (m *SampleTimerCollector) ReadMetrics(timestamp time.Time) {
+	// Create a sample metric
+
+	value := 1.0
+
+	// If you want to measure something for a specific amount of time, use interval
+	// start := readState()
+	// time.Sleep(interval)
+	// stop := readState()
+	// value = (stop - start) / interval.Seconds()
+
+	y, err := lp.NewMessage("sample_metric", m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
+	if err == nil && m.output != nil {
+		// Send it to output channel if we have a valid channel
+		m.output <- y
+	}
+}
+
+func (m *SampleTimerCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	// Capture output channel
+	m.output = output
+}
+
+func (m *SampleTimerCollector) Close() {
+	// Send signal to the timer loop to stop it
+	m.done <- true
+	// Wait until the timer loop is done
+	m.wg.Wait()
+	// Unset flag
+	m.init = false
+}

collectors/schedstatMetric.go

@@ -0,0 +1,154 @@
+package collectors
+
+import (
+	"bufio"
+	"encoding/json"
+	"fmt"
+	"math"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+)
+
+const SCHEDSTATFILE = `/proc/schedstat`
+
+// These are the fields we read from the JSON configuration
+type SchedstatCollectorConfig struct {
+	ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
+}
+
+// This contains all variables we need during execution and the variables
+// defined by metricCollector (name, init, ...)
+type SchedstatCollector struct {
+	metricCollector
+	config        SchedstatCollectorConfig     // the configuration structure
+	lastTimestamp time.Time                    // Store time stamp of last tick to derive values
+	meta          map[string]string            // default meta information
+	cputags       map[string]map[string]string // default tags
+	olddata       map[string]map[string]int64  // default tags
+}
+
+// Functions to implement MetricCollector interface
+// Init(...), Read(...), Close()
+// See: metricCollector.go
+
+// Init initializes the sample collector
+// Called once by the collector manager
+// All tags, meta data tags and metrics that do not change over the runtime should be set here
+func (m *SchedstatCollector) Init(config json.RawMessage) error {
+	var err error = nil
+	// Always set the name early in Init() to use it in cclog.Component* functions
+	m.name = "SchedstatCollector"
+	// This is for later use, also call it early
+	m.setup()
+	// Tell whether the collector should be run in parallel with others (reading files, ...)
+	// or it should be run serially, mostly for collectors acutally doing measurements
+	// because they should not measure the execution of the other collectors
+	m.parallel = true
+	// Define meta information sent with each metric
+	// (Can also be dynamic or this is the basic set with extension through AddMeta())
+	m.meta = map[string]string{"source": m.name, "group": "SCHEDSTAT"}
+
+	// Read in the JSON configuration
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			cclog.ComponentError(m.name, "Error reading config:", err.Error())
+			return err
+		}
+	}
+
+	// Check input file
+	file, err := os.Open(string(SCHEDSTATFILE))
+	if err != nil {
+		cclog.ComponentError(m.name, err.Error())
+	}
+	defer file.Close()
+
+	// Pre-generate tags for all CPUs
+	num_cpus := 0
+	m.cputags = make(map[string]map[string]string)
+	m.olddata = make(map[string]map[string]int64)
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		linefields := strings.Fields(line)
+		if strings.HasPrefix(linefields[0], "cpu") && strings.Compare(linefields[0], "cpu") != 0 {
+			cpustr := strings.TrimLeft(linefields[0], "cpu")
+			cpu, _ := strconv.Atoi(cpustr)
+			running, _ := strconv.ParseInt(linefields[7], 10, 64)
+			waiting, _ := strconv.ParseInt(linefields[8], 10, 64)
+			m.cputags[linefields[0]] = map[string]string{"type": "hwthread", "type-id": fmt.Sprintf("%d", cpu)}
+			m.olddata[linefields[0]] = map[string]int64{"running": running, "waiting": waiting}
+			num_cpus++
+		}
+	}
+
+	// Save current timestamp
+	m.lastTimestamp = time.Now()
+
+	// Set this flag only if everything is initialized properly, all required files exist, ...
+	m.init = true
+	return err
+}
+
+func (m *SchedstatCollector) ParseProcLine(linefields []string, tags map[string]string, output chan lp.CCMessage, now time.Time, tsdelta time.Duration) {
+	running, _ := strconv.ParseInt(linefields[7], 10, 64)
+	waiting, _ := strconv.ParseInt(linefields[8], 10, 64)
+	diff_running := running - m.olddata[linefields[0]]["running"]
+	diff_waiting := waiting - m.olddata[linefields[0]]["waiting"]
+
+	var l_running float64 = float64(diff_running) / tsdelta.Seconds() / (math.Pow(1000, 3))
+	var l_waiting float64 = float64(diff_waiting) / tsdelta.Seconds() / (math.Pow(1000, 3))
+
+	m.olddata[linefields[0]]["running"] = running
+	m.olddata[linefields[0]]["waiting"] = waiting
+	value := l_running + l_waiting
+
+	y, err := lp.NewMessage("cpu_load_core", tags, m.meta, map[string]interface{}{"value": value}, now)
+	if err == nil {
+		// Send it to output channel
+		output <- y
+	}
+}
+
+// Read collects all metrics belonging to the sample collector
+// and sends them through the output channel to the collector manager
+func (m *SchedstatCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	if !m.init {
+		return
+	}
+
+	//timestamps
+	now := time.Now()
+	tsdelta := now.Sub(m.lastTimestamp)
+
+	file, err := os.Open(string(SCHEDSTATFILE))
+	if err != nil {
+		cclog.ComponentError(m.name, err.Error())
+	}
+	defer file.Close()
+
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := scanner.Text()
+		linefields := strings.Fields(line)
+		if strings.HasPrefix(linefields[0], "cpu") {
+			m.ParseProcLine(linefields, m.cputags[linefields[0]], output, now, tsdelta)
+		}
+	}
+
+	m.lastTimestamp = now
+
+}
+
+// Close metric collector: close network connection, close files, close libraries, ...
+// Called once by the collector manager
+func (m *SchedstatCollector) Close() {
+	// Unset flag
+	m.init = false
+}

collectors/schedstatMetric.md

@@ -0,0 +1,11 @@
+
+## `schedstat` collector
+```json
+  "schedstat": {
+  }
+```
+
+The `schedstat` collector reads data from /proc/schedstat and calculates a load value, separated by hwthread. This might be useful to detect bad cpu pinning on shared nodes etc. 
+
+Metric:
+* `cpu_load_core`

collectors/selfMetric.go

@@ -0,0 +1,144 @@
+package collectors
+
+import (
+	"encoding/json"
+	"runtime"
+	"syscall"
+	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+)
+
+type SelfCollectorConfig struct {
+	MemStats   bool `json:"read_mem_stats"`
+	GoRoutines bool `json:"read_goroutines"`
+	CgoCalls   bool `json:"read_cgo_calls"`
+	Rusage     bool `json:"read_rusage"`
+}
+
+type SelfCollector struct {
+	metricCollector
+	config SelfCollectorConfig // the configuration structure
+	meta   map[string]string   // default meta information
+	tags   map[string]string   // default tags
+}
+
+func (m *SelfCollector) Init(config json.RawMessage) error {
+	var err error = nil
+	m.name = "SelfCollector"
+	m.setup()
+	m.parallel = true
+	m.meta = map[string]string{"source": m.name, "group": "Self"}
+	m.tags = map[string]string{"type": "node"}
+	if len(config) > 0 {
+		err = json.Unmarshal(config, &m.config)
+		if err != nil {
+			cclog.ComponentError(m.name, "Error reading config:", err.Error())
+			return err
+		}
+	}
+	m.init = true
+	return err
+}
+
+func (m *SelfCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+	timestamp := time.Now()
+
+	if m.config.MemStats {
+		var memstats runtime.MemStats
+		runtime.ReadMemStats(&memstats)
+
+		y, err := lp.NewMessage("total_alloc", m.tags, m.meta, map[string]interface{}{"value": memstats.TotalAlloc}, timestamp)
+		if err == nil {
+			y.AddMeta("unit", "Bytes")
+			output <- y
+		}
+		y, err = lp.NewMessage("heap_alloc", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapAlloc}, timestamp)
+		if err == nil {
+			y.AddMeta("unit", "Bytes")
+			output <- y
+		}
+		y, err = lp.NewMessage("heap_sys", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapSys}, timestamp)
+		if err == nil {
+			y.AddMeta("unit", "Bytes")
+			output <- y
+		}
+		y, err = lp.NewMessage("heap_idle", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapIdle}, timestamp)
+		if err == nil {
+			y.AddMeta("unit", "Bytes")
+			output <- y
+		}
+		y, err = lp.NewMessage("heap_inuse", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapInuse}, timestamp)
+		if err == nil {
+			y.AddMeta("unit", "Bytes")
+			output <- y
+		}
+		y, err = lp.NewMessage("heap_released", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapReleased}, timestamp)
+		if err == nil {
+			y.AddMeta("unit", "Bytes")
+			output <- y
+		}
+		y, err = lp.NewMessage("heap_objects", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapObjects}, timestamp)
+		if err == nil {
+			output <- y
+		}
+	}
+	if m.config.GoRoutines {
+		y, err := lp.NewMessage("num_goroutines", m.tags, m.meta, map[string]interface{}{"value": runtime.NumGoroutine()}, timestamp)
+		if err == nil {
+			output <- y
+		}
+	}
+	if m.config.CgoCalls {
+		y, err := lp.NewMessage("num_cgo_calls", m.tags, m.meta, map[string]interface{}{"value": runtime.NumCgoCall()}, timestamp)
+		if err == nil {
+			output <- y
+		}
+	}
+	if m.config.Rusage {
+		var rusage syscall.Rusage
+		err := syscall.Getrusage(syscall.RUSAGE_SELF, &rusage)
+		if err == nil {
+			sec, nsec := rusage.Utime.Unix()
+			t := float64(sec) + (float64(nsec) * 1e-9)
+			y, err := lp.NewMessage("rusage_user_time", m.tags, m.meta, map[string]interface{}{"value": t}, timestamp)
+			if err == nil {
+				y.AddMeta("unit", "seconds")
+				output <- y
+			}
+			sec, nsec = rusage.Stime.Unix()
+			t = float64(sec) + (float64(nsec) * 1e-9)
+			y, err = lp.NewMessage("rusage_system_time", m.tags, m.meta, map[string]interface{}{"value": t}, timestamp)
+			if err == nil {
+				y.AddMeta("unit", "seconds")
+				output <- y
+			}
+			y, err = lp.NewMessage("rusage_vol_ctx_switch", m.tags, m.meta, map[string]interface{}{"value": rusage.Nvcsw}, timestamp)
+			if err == nil {
+				output <- y
+			}
+			y, err = lp.NewMessage("rusage_invol_ctx_switch", m.tags, m.meta, map[string]interface{}{"value": rusage.Nivcsw}, timestamp)
+			if err == nil {
+				output <- y
+			}
+			y, err = lp.NewMessage("rusage_signals", m.tags, m.meta, map[string]interface{}{"value": rusage.Nsignals}, timestamp)
+			if err == nil {
+				output <- y
+			}
+			y, err = lp.NewMessage("rusage_major_pgfaults", m.tags, m.meta, map[string]interface{}{"value": rusage.Majflt}, timestamp)
+			if err == nil {
+				output <- y
+			}
+			y, err = lp.NewMessage("rusage_minor_pgfaults", m.tags, m.meta, map[string]interface{}{"value": rusage.Minflt}, timestamp)
+			if err == nil {
+				output <- y
+			}
+		}
+
+	}
+}
+
+func (m *SelfCollector) Close() {
+	m.init = false
+}

collectors/selfMetric.md

@@ -0,0 +1,34 @@
+## `self` collector
+
+```json
+  "self": {
+    "read_mem_stats" : true,
+    "read_goroutines" : true,
+    "read_cgo_calls" : true,
+    "read_rusage" : true
+  }
+```
+
+The `self` collector reads the data from the `runtime` and `syscall` packages, so monitors the execution of the cc-metric-collector itself.
+
+Metrics:
+* If `read_mem_stats == true`:
+  * `total_alloc`: The metric reports cumulative bytes allocated for heap objects.
+  * `heap_alloc`: The metric reports bytes of allocated heap objects.
+  * `heap_sys`: The metric reports bytes of heap memory obtained from the OS.
+  * `heap_idle`: The metric reports bytes in idle (unused) spans.
+  * `heap_inuse`: The metric reports bytes in in-use spans.
+  * `heap_released`: The metric reports bytes of physical memory returned to the OS.
+  * `heap_objects`: The metric reports the number of allocated heap objects.
+* If `read_goroutines == true`:
+  * `num_goroutines`: The metric reports the number of goroutines that currently exist.
+* If `read_cgo_calls == true`:
+  * `num_cgo_calls`: The metric reports the number of cgo calls made by the current process.
+* If `read_rusage == true`:
+  * `rusage_user_time`: The metric reports the amount of time that this process has been scheduled in user mode.
+  * `rusage_system_time`: The metric reports the amount of time that this process has been scheduled in kernel mode.
+  * `rusage_vol_ctx_switch`: The metric reports the amount of voluntary context switches.
+  * `rusage_invol_ctx_switch`: The metric reports the amount of involuntary context switches.
+  * `rusage_signals`: The metric reports the number of signals received.
+  * `rusage_major_pgfaults`: The metric reports the number of major faults the process has made which have required loading a memory page from disk.
+  * `rusage_minor_pgfaults`: The metric reports the number of minor faults the process has made which have not required loading a memory page from disk.

collectors/tempMetric.go

@@ -3,111 +3,233 @@ package collectors
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
-	cclog "github.com/ClusterCockpit/cc-metric-collector/internal/ccLogger"
 	"os"
 	"path/filepath"
 	"strconv"
 	"strings"
 	"time"
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
 )
 
-const HWMON_PATH = `/sys/class/hwmon`
+// See: https://www.kernel.org/doc/html/latest/hwmon/sysfs-interface.html
+// /sys/class/hwmon/hwmon*/name -> coretemp
+// /sys/class/hwmon/hwmon*/temp*_label -> Core 0
+// /sys/class/hwmon/hwmon*/temp*_input -> 27800 = 27.8°C
+// /sys/class/hwmon/hwmon*/temp*_max -> 86000 = 86.0°C
+// /sys/class/hwmon/hwmon*/temp*_crit -> 100000 = 100.0°C
 
-type TempCollectorConfig struct {
-	ExcludeMetrics []string                     `json:"exclude_metrics"`
-	TagOverride    map[string]map[string]string `json:"tag_override"`
+type TempCollectorSensor struct {
+	name         string
+	label        string
+	metricName   string // Default: name_label
+	file         string
+	maxTempName  string
+	maxTemp      int64
+	critTempName string
+	critTemp     int64
+	tags         map[string]string
 }
 
 type TempCollector struct {
 	metricCollector
-	config TempCollectorConfig
+	config struct {
+		ExcludeMetrics     []string                     `json:"exclude_metrics"`
+		TagOverride        map[string]map[string]string `json:"tag_override"`
+		ReportMaxTemp      bool                         `json:"report_max_temperature"`
+		ReportCriticalTemp bool                         `json:"report_critical_temperature"`
+	}
+	sensors []*TempCollectorSensor
 }
 
 func (m *TempCollector) Init(config json.RawMessage) error {
+	// Check if already initialized
+	if m.init {
+		return nil
+	}
+
 	m.name = "TempCollector"
+	m.parallel = true
 	m.setup()
-	m.meta = map[string]string{"source": m.name, "group": "IPMI", "unit": "degC"}
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
 			return err
 		}
 	}
+
+	m.meta = map[string]string{
+		"source": m.name,
+		"group":  "IPMI",
+		"unit":   "degC",
+	}
+
+	m.sensors = make([]*TempCollectorSensor, 0)
+
+	// Find all temperature sensor files
+	globPattern := filepath.Join("/sys/class/hwmon", "*", "temp*_input")
+	inputFiles, err := filepath.Glob(globPattern)
+	if err != nil {
+		return fmt.Errorf("unable to glob files with pattern '%s': %v", globPattern, err)
+	}
+	if inputFiles == nil {
+		return fmt.Errorf("unable to find any files with pattern '%s'", globPattern)
+	}
+
+	// Get sensor name for each temperature sensor file
+	for _, file := range inputFiles {
+		sensor := new(TempCollectorSensor)
+
+		// sensor name
+		nameFile := filepath.Join(filepath.Dir(file), "name")
+		name, err := os.ReadFile(nameFile)
+		if err == nil {
+			sensor.name = strings.TrimSpace(string(name))
+		}
+
+		// sensor label
+		labelFile := strings.TrimSuffix(file, "_input") + "_label"
+		label, err := os.ReadFile(labelFile)
+		if err == nil {
+			sensor.label = strings.TrimSpace(string(label))
+		}
+
+		// sensor metric name
+		switch {
+		case len(sensor.name) == 0 && len(sensor.label) == 0:
+			continue
+		case sensor.name == "coretemp" && strings.HasPrefix(sensor.label, "Core ") ||
+			sensor.name == "coretemp" && strings.HasPrefix(sensor.label, "Package id "):
+			sensor.metricName = "temp_" + sensor.label
+		case len(sensor.name) != 0 && len(sensor.label) != 0:
+			sensor.metricName = sensor.name + "_" + sensor.label
+		case len(sensor.name) != 0:
+			sensor.metricName = sensor.name
+		case len(sensor.label) != 0:
+			sensor.metricName = sensor.label
+		}
+		sensor.metricName = strings.ToLower(sensor.metricName)
+		sensor.metricName = strings.Replace(sensor.metricName, " ", "_", -1)
+		// Add temperature prefix, if required
+		if !strings.Contains(sensor.metricName, "temp") {
+			sensor.metricName = "temp_" + sensor.metricName
+		}
+
+		// Sensor file
+		_, err = os.ReadFile(file)
+		if err != nil {
+			continue
+		}
+		sensor.file = file
+
+		// Sensor tags
+		sensor.tags = map[string]string{
+			"type": "node",
+		}
+
+		// Apply tag override configuration
+		for key, newtags := range m.config.TagOverride {
+			if strings.Contains(sensor.file, key) {
+				sensor.tags = newtags
+				break
+			}
+		}
+
+		// max temperature
+		if m.config.ReportMaxTemp {
+			maxTempFile := strings.TrimSuffix(file, "_input") + "_max"
+			if buffer, err := os.ReadFile(maxTempFile); err == nil {
+				if x, err := strconv.ParseInt(strings.TrimSpace(string(buffer)), 10, 64); err == nil {
+					sensor.maxTempName = strings.Replace(sensor.metricName, "temp", "max_temp", 1)
+					sensor.maxTemp = x / 1000
+				}
+			}
+		}
+
+		// critical temperature
+		if m.config.ReportCriticalTemp {
+			criticalTempFile := strings.TrimSuffix(file, "_input") + "_crit"
+			if buffer, err := os.ReadFile(criticalTempFile); err == nil {
+				if x, err := strconv.ParseInt(strings.TrimSpace(string(buffer)), 10, 64); err == nil {
+					sensor.critTempName = strings.Replace(sensor.metricName, "temp", "crit_temp", 1)
+					sensor.critTemp = x / 1000
+				}
+			}
+		}
+
+		m.sensors = append(m.sensors, sensor)
+	}
+
+	// Empty sensors map
+	if len(m.sensors) == 0 {
+		return fmt.Errorf("no temperature sensors found")
+	}
+
+	// Finished initialization
 	m.init = true
 	return nil
 }
 
-func get_hwmon_sensors() (map[string]map[string]string, error) {
-	var folders []string
-	var sensors map[string]map[string]string
-	sensors = make(map[string]map[string]string)
-	err := filepath.Walk(HWMON_PATH, func(p string, info os.FileInfo, err error) error {
-		if info.IsDir() {
-			return nil
-		}
-		folders = append(folders, p)
-		return nil
-	})
-	if err != nil {
-		return sensors, err
-	}
+func (m *TempCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 
-	for _, f := range folders {
-		sensors[f] = make(map[string]string)
-		myp := fmt.Sprintf("%s/", f)
-		err := filepath.Walk(myp, func(path string, info os.FileInfo, err error) error {
-			dir, fname := filepath.Split(path)
-			if strings.Contains(fname, "temp") && strings.Contains(fname, "_input") {
-				namefile := fmt.Sprintf("%s/%s", dir, strings.Replace(fname, "_input", "_label", -1))
-				name, ierr := ioutil.ReadFile(namefile)
-				if ierr == nil {
-					sensors[f][strings.Replace(string(name), "\n", "", -1)] = path
-				}
-			}
-			return nil
-		})
+	for _, sensor := range m.sensors {
+		// Read sensor file
+		buffer, err := os.ReadFile(sensor.file)
 		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to read file '%s': %v", sensor.file, err))
 			continue
 		}
-	}
-	return sensors, nil
-}
-
-func (m *TempCollector) Read(interval time.Duration, output chan lp.CCMetric) {
-
-	sensors, err := get_hwmon_sensors()
-	if err != nil {
-		return
-	}
-	for _, files := range sensors {
-		for name, file := range files {
-			tags := map[string]string{"type": "node"}
-			for key, newtags := range m.config.TagOverride {
-				if strings.Contains(file, key) {
-					tags = newtags
-					break
-				}
-			}
-			mname := strings.Replace(name, " ", "_", -1)
-			if !strings.Contains(mname, "temp") {
-				mname = fmt.Sprintf("temp_%s", mname)
-			}
-			buffer, err := ioutil.ReadFile(string(file))
+		x, err := strconv.ParseInt(strings.TrimSpace(string(buffer)), 10, 64)
 		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert temperature '%s' to int64: %v", buffer, err))
 			continue
 		}
-			x, err := strconv.ParseInt(strings.Replace(string(buffer), "\n", "", -1), 0, 64)
+		x /= 1000
+		y, err := lp.NewMessage(
+			sensor.metricName,
+			sensor.tags,
+			m.meta,
+			map[string]interface{}{"value": x},
+			time.Now(),
+		)
 		if err == nil {
-				y, err := lp.New(strings.ToLower(mname), tags, m.meta, map[string]interface{}{"value": int(float64(x) / 1000)}, time.Now())
+			output <- y
+		}
+
+		// max temperature
+		if m.config.ReportMaxTemp && sensor.maxTemp != 0 {
+			y, err := lp.NewMessage(
+				sensor.maxTempName,
+				sensor.tags,
+				m.meta,
+				map[string]interface{}{"value": sensor.maxTemp},
+				time.Now(),
+			)
+			if err == nil {
+				output <- y
+			}
+		}
+
+		// critical temperature
+		if m.config.ReportCriticalTemp && sensor.critTemp != 0 {
+			y, err := lp.NewMessage(
+				sensor.critTempName,
+				sensor.tags,
+				m.meta,
+				map[string]interface{}{"value": sensor.critTemp},
+				time.Now(),
+			)
 			if err == nil {
-					cclog.ComponentDebug(m.name, y)
 				output <- y
 			}
 		}
 	}
-	}
+
 }
 
 func (m *TempCollector) Close() {

collectors/topprocsMetric.go

@@ -8,7 +8,8 @@ import (
 	"os/exec"
 	"strings"
 	"time"
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
 )
 
 const MAX_NUM_PROCS = 10
@@ -27,6 +28,7 @@ type TopProcsCollector struct {
 func (m *TopProcsCollector) Init(config json.RawMessage) error {
 	var err error
 	m.name = "TopProcsCollector"
+	m.parallel = true
 	m.tags = map[string]string{"type": "node"}
 	m.meta = map[string]string{"source": m.name, "group": "TopProcs"}
 	if len(config) > 0 {
@@ -38,20 +40,20 @@ func (m *TopProcsCollector) Init(config json.RawMessage) error {
 		m.config.Num_procs = int(DEFAULT_NUM_PROCS)
 	}
 	if m.config.Num_procs <= 0 || m.config.Num_procs > MAX_NUM_PROCS {
-		return errors.New(fmt.Sprintf("num_procs option must be set in 'topprocs' config (range: 1-%d)", MAX_NUM_PROCS))
+		return fmt.Errorf("num_procs option must be set in 'topprocs' config (range: 1-%d)", MAX_NUM_PROCS)
 	}
 	m.setup()
 	command := exec.Command("ps", "-Ao", "comm", "--sort=-pcpu")
 	command.Wait()
 	_, err = command.Output()
 	if err != nil {
-		return errors.New("Failed to execute command")
+		return errors.New("failed to execute command")
 	}
 	m.init = true
 	return nil
 }
 
-func (m *TopProcsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
+func (m *TopProcsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 	if !m.init {
 		return
 	}
@@ -66,7 +68,7 @@ func (m *TopProcsCollector) Read(interval time.Duration, output chan lp.CCMetric
 	lines := strings.Split(string(stdout), "\n")
 	for i := 1; i < m.config.Num_procs+1; i++ {
 		name := fmt.Sprintf("topproc%d", i)
-		y, err := lp.New(name, m.tags, m.meta, map[string]interface{}{"value": string(lines[i])}, time.Now())
+		y, err := lp.NewMessage(name, m.tags, m.meta, map[string]interface{}{"value": string(lines[i])}, time.Now())
 		if err == nil {
 			output <- y
 		}

config.json

@@ -1,8 +1,8 @@
 {
-  "sinks": "sinks.json",
-  "collectors" : "collectors.json",
-  "receivers" : "receivers.json",
-  "router" : "router.json",
-  "interval": 10,
-  "duration": 1
+  "sinks": "./sinks.json",
+  "collectors" : "./collectors.json",
+  "receivers" : "./receivers.json",
+  "router" : "./router.json",
+  "interval": "10s",
+  "duration": "1s"
 }

docs/building.md

@@ -0,0 +1,74 @@
+# Building the cc-metric-collector
+
+In most cases, a simple `make` in the main folder is enough to get a `cc-metric-collector` binary. It is basically a `go build` but some collectors require additional tasks. There is currently no Golang interface to LIKWID, so it uses `cgo` to create bindings but `cgo` requires the LIKWID header files. Therefore, it checks whether LIKWID is installed and if not it downloads LIKWID and copies the headers.
+
+## System integration
+
+The main configuration settings for system integration are pre-defined in `scripts/cc-metric-collector.config`. The file contains the UNIX user and group used for execution, the PID file location and other settings. Adjust it accordingly and copy it to `/etc/default/cc-metric-collector`
+
+```bash
+$ install --mode 644 \
+          --owner $CC_USER \
+          --group $CC_GROUP \
+          scripts/cc-metric-collector.config /etc/default/cc-metric-collector
+$ edit /etc/default/cc-metric-collector
+```
+
+### SysVinit and similar
+
+If you are using a init system based in `/etc/init.d` daemons, you can use the sample `scripts/cc-metric-collector.init`. It reads the basic configuration from `/etc/default/cc-metric-collector`
+
+```bash
+$ install --mode 755 \
+          --owner $CC_USER \
+          --group $CC_GROUP \
+          scripts/cc-metric-collector.init /etc/init.d/cc-metric-collector
+```
+
+### Systemd
+
+If you are using `systemd` as init system, you can use the sample systemd service file `scripts/cc-metric-collector.service`, the configuration file `scripts/cc-metric-collector.config`.
+
+```bash
+$ install --mode 644  \
+          --owner $CC_USER \
+          --group $CC_GROUP \
+           scripts/cc-metric-collector.service /etc/systemd/system/cc-metric-collector.service
+$ systemctl enable cc-metric-collector
+```
+
+## Packaging
+
+### RPM
+
+In order to get a RPM packages for cc-metric-collector, just use:
+
+```bash
+$ make RPM
+```
+
+It uses the RPM SPEC file `scripts/cc-metric-collector.spec` and requires the RPM tools (`rpm` and `rpmspec`) and `git`.
+
+### DEB
+
+In order to get very simple Debian packages for cc-metric-collector, just use:
+
+```bash
+$ make DEB
+```
+
+It uses the DEB control file `scripts/cc-metric-collector.control` and requires `dpkg-deb`, `awk`, `sed` and `git`. It creates only a binary deb package.
+
+_This option is not well tested and therefore experimental_
+
+### Customizing RPMs or DEB packages
+
+If you want to customize the RPMs or DEB packages for your local system, use the following workflow.
+
+- (if there is already a fork in the private account, delete it and wait until Github realizes the deletion)
+- Fork the cc-metric-collector repository (if Github hasn't realized it, it creates a fork named cc-metric-collector2)
+- Go to private cc-metric-collector repository and enable Github Actions
+- Do changes to the scripts, code, ... Commit and push your changes.
+- Tag the new commit with `v0.x.y-<myversion>` (`git tag v0.x.y-<myversion>`)
+- Push tags to repository (`git push --tags`)
+- Wait until the Release action finishes. It creates fresh RPMs and DEBs in your private repository on the Releases page.

docs/configuration.md

@@ -0,0 +1,189 @@
+# Configuring the CC metric collector
+
+The configuration of the CC metric collector consists of five configuration files: one global file and four component related files.
+
+## Global configuration
+
+The global file contains the paths to the other four files and some global options. 
+
+```json
+{
+  "sinks": "sinks.json",
+  "collectors" : "collectors.json",
+  "receivers" : "receivers.json",
+  "router" : "router.json",
+  "interval": "10s",
+  "duration": "1s"
+}
+```
+
+Be aware that the paths are relative to the execution folder of the cc-metric-collector binary, so it is recommended to use absolute paths.
+
+## Component configuration
+
+The others are mainly list of of subcomponents: the collectors, the receivers, the router and the sinks. Their role is best shown in a picture:
+
+```mermaid
+flowchart LR
+
+  subgraph col ["Collectors"]
+  direction TB
+  cpustat["cpustat"]
+  memstat["memstat"]
+  tempstat["tempstat"]
+  misc["..."]
+  end
+  
+  subgraph Receivers ["Receivers"]
+  direction TB
+  nats["NATS"]
+  httprecv["HTTP"]
+  miscrecv[...]
+  end
+
+  subgraph calc["Aggregator"]
+  direction LR
+  cache["Cache"]
+  agg["Calculator"]
+  end
+
+  subgraph sinks ["Sinks"]
+  direction RL
+  influx["InfluxDB"]
+  ganglia["Ganglia"]
+  logger["Logfile"]
+  miscsink["..."]
+  end
+
+  cpustat --> CollectorManager["CollectorManager"]
+  memstat --> CollectorManager
+  tempstat --> CollectorManager
+  misc --> CollectorManager
+
+  nats  --> ReceiverManager["ReceiverManager"]
+  httprecv --> ReceiverManager
+  miscrecv --> ReceiverManager
+
+  CollectorManager --> newrouter["Router"]
+  ReceiverManager -.-> newrouter
+  calc -.-> newrouter
+  newrouter --> SinkManager["SinkManager"]
+  newrouter -.-> calc
+
+  SinkManager --> influx
+  SinkManager --> ganglia
+  SinkManager --> logger
+  SinkManager --> miscsink
+
+
+```
+
+There are four parts:
+- The collectors read data from files, execute commands and call dynamically loaded library function and send it to the router
+- The router can process metrics by cacheing and evaluating functions and conditions on them
+- The sinks send the metrics to storage backends
+- The receivers can be used to receive metrics from other collectors and forward them to the router. They can be used to create a tree-like structure of collectors.
+
+(A maybe better differentiation between collectors and receivers is that the collectors are called periodically while the receivers have their own logic and submit metrics at any time)
+
+
+### Collectors configuration file
+
+The collectors configuration file tells which metrics should be queried from the system. The metric gathering is logically grouped in so called 'Collectors'. So there are Collectors to read CPU, memory or filesystem statistics. The collectors configuration file is a list of these collectors with collector-specific configurations:
+
+```json
+{
+  "cpustat" : {},
+  "diskstat": {
+    "exclude_metrics": [
+      "disk_total"
+    ]
+  }
+}
+```
+
+The first one is the CPU statistics collector without any collector-specific setting. The second one enables disk mount statistics but excludes the metric `disk_total`.
+
+All names and possible collector-specific configuration options can be found [here](../collectors/README.md).
+
+Some collectors might dynamically load shared libraries. In order to enable these collectors, make sure that the shared library path is part of the `LD_LIBRARY_PATH` environment variable.
+
+### Sinks configuration file
+
+The sinks define the output/sending of metrics. The metrics can be forwarded to multiple sinks, even to sinks of the same type. The sinks configuration file is a list of these sinks, each with an individual name.
+
+```json
+{
+  "myinflux" : {
+    "type" : "influxasync",
+    "host": "localhost",
+    "port": "8086",
+    "organization" : "testorga",
+    "database" : "testbucket",
+    "password" : "<my secret JWT>"
+  },
+  "companyinflux" : {
+    "type" : "influxasync",
+    "host": "companyhost",
+    "port": "8086",
+    "organization" : "company",
+    "database" : "main",
+    "password" : "<company's secret JWT>"
+  }
+}
+```
+
+The above example configuration file defines two sink, both ot type `influxasync`. They are differentiated internally by the names: `myinflux` and `companyinflux`.
+
+All types and possible sink-specific configuration options can be found [here](../sinks/README.md).
+
+Some sinks might dynamically load shared libraries. In order to enable these sinks, make sure that the shared library path is part of the `LD_LIBRARY_PATH` environment variable.
+
+### Router configuration file
+
+The collectors and the sinks are connected through the router. The router forwards the metrics to the sinks but enables some data processing. A common example is to tag all passing metrics like adding `cluster=mycluster`. But also aggregations like "take the average of all 'ipc' metrics" (ipc -> Instructions Per Cycle). Since the configurations of these aggregations can be quite complicated, we refer to the router's [README](../internal/metricRouter/README.md).
+
+A simple router configuration file to start with looks like this:
+
+```json
+{
+    "add_tags" : [
+        {
+            "key" : "cluster",
+            "value" : "mycluster",
+            "if" : "*"
+        }
+    ],
+    "interval_timestamp" : false,
+    "num_cache_intervals" : 0
+}
+```
+
+With the `add_tags` section, we tell to attach the `cluster=mycluster` tag to each (`*` metric). The `interval_timestamp` tell the router to not touch the timestamp of metrics. It is possible to send all metrics within an interval with a common time stamp to avoid later alignment issues. The `num_cache_intervals` diables the cache completely. The cache is only required if you want to do complex metric aggregations.
+
+All configuration options can be found [here](../internal/metricRouter/README.md).
+
+### Receivers configuration file
+
+The receivers are a special feature of the CC Metric Collector to enable simpler integration into exising setups. While collectors query data from the local system, the receivers commonly get data from other systems through some network technology like HTTP or NATS. The idea is keep the current setup but send it to a CC Metric Collector which forwards it to the the destination system (if a sink exists for it). For most setups, the receivers are not required and an the receiver config file should contain only an empty JSON map (`{}`). 
+
+```json
+{
+  "nats_rack0": {
+    "type": "nats",
+    "address" : "nats-server.example.org",
+    "port" : "4222",
+    "subject" : "rack0",
+  },
+  "nats_rack1": {
+    "type": "nats",
+    "address" : "nats-server.example.org",
+    "port" : "4222",
+    "subject" : "rack1",
+  }
+}
+```
+
+This example configuration creates two receivers with the names `nats_rack0` and `nats_rack1`. While one subscribes to metrics published with the `rack0` subject, the other one subscribes to the `rack0` subject. The NATS server is the same as it manages all subjects in a subnet. (As example, the router could add tags `rack=0` and `rack=1` respectively to the received metrics.)
+
+All types and possible receiver-specific configuration options can be found [here](../receivers/README.md).

docs/introduction.md

@@ -0,0 +1,23 @@
+# The ClusterCockpit Project
+
+The ClusterCockpit project is a joined project of computing centers in Europe to set up a cluster monitoring stack for small to mid-sized computing centers under the lead of NHR@FAU.
+
+# The ClusterCockpit Stack
+
+In cluster environment, there are commonly a lot of systems dedicated for computation, backend servers for file systems and frontend servers for the user interaction and cluster control. The ClusterCockpit Stack is mainly used for monitoring the compute systems with some interaction to the frontend servers. It consists of multiple components:
+
+- cc-metric-collector: Monitor resource usage on the compute systems
+- cc-metric-store: In-memory database
+- cc-backend & cc-frontend: The web-based visualizer
+
+# CC Metric Collector
+
+The CC Metric Collector project was started to provide a useful set of metrics for HPC and data science related compute systems. It runs as a system daemon and gathers system data periodically to forward the metrics to one or more databases. One of the provided backends can be used for the cc-metric-store but many others exist like InfluxDB time-series databases, the Ganglia Monitoring System or the Prometheus Monitoring System.
+
+The data is gathered by so-called "Collectors", forwarded to an internal router for on-the-fly manipulation (tagging, aggregation, ...) which pushes the metrics to the different metric writers called "Sinks". There is a forth component, the "Receivers", which receive data through some networking system like a HTTP server at any time.
+
+# CC Metric Store
+The CC Metric Store is a data management system with short-term in-memory and long-term file-base metric storage.
+
+# CC Backend and CC Frontend
+The CC Backend and Frontend form together the web interface for ClusterCockpit.

go.mod

@@ -1,19 +1,45 @@
 module github.com/ClusterCockpit/cc-metric-collector
 
-go 1.16
+go 1.21.1
+
+toolchain go1.22.1
 
 require (
-	github.com/NVIDIA/go-nvml v0.11.1-0
-	github.com/influxdata/influxdb-client-go/v2 v2.7.0
+	github.com/ClusterCockpit/cc-energy-manager v0.0.0-20240709142550-dd446f7ab900
+	github.com/ClusterCockpit/cc-units v0.4.0
+	github.com/ClusterCockpit/go-rocm-smi v0.3.0
+	github.com/NVIDIA/go-nvml v0.12.0-2
+	github.com/PaesslerAG/gval v1.2.2
+	github.com/expr-lang/expr v1.16.9
+	github.com/fsnotify/fsnotify v1.7.0
+	github.com/gorilla/mux v1.8.1
+	github.com/influxdata/influxdb-client-go/v2 v2.13.0
 	github.com/influxdata/line-protocol v0.0.0-20210922203350-b1ad95c89adf
-	github.com/nats-io/nats.go v1.13.1-0.20211122170419-d7c1d78a50fc
-	golang.org/x/sys v0.0.0-20220114195835-da31bd327af9
-	gopkg.in/Knetic/govaluate.v2 v2.3.0
+	github.com/influxdata/line-protocol/v2 v2.2.1
+	github.com/nats-io/nats.go v1.36.0
+	github.com/prometheus/client_golang v1.19.0
+	github.com/stmcginnis/gofish v0.15.0
+	github.com/tklauser/go-sysconf v0.3.13
+	golang.design/x/thread v0.0.0-20210122121316-335e9adffdf1
+	golang.org/x/exp v0.0.0-20240613232115-7f521ea00fb8
+	golang.org/x/sys v0.18.0
 )
 
 require (
-	github.com/PaesslerAG/gval v1.1.2
-	github.com/golang/protobuf v1.5.2 // indirect
-	github.com/nats-io/nats-server/v2 v2.7.0 // indirect
-	google.golang.org/protobuf v1.27.1 // indirect
+	github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/klauspost/compress v1.17.7 // indirect
+	github.com/nats-io/nkeys v0.4.7 // indirect
+	github.com/nats-io/nuid v1.0.1 // indirect
+	github.com/oapi-codegen/runtime v1.1.1 // indirect
+	github.com/prometheus/client_model v0.6.0 // indirect
+	github.com/prometheus/common v0.49.0 // indirect
+	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/shopspring/decimal v1.3.1 // indirect
+	github.com/tklauser/numcpus v0.7.0 // indirect
+	golang.org/x/crypto v0.21.0 // indirect
+	golang.org/x/net v0.22.0 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
 )

go.sum

@@ -1,145 +1,120 @@
-github.com/NVIDIA/go-nvml v0.11.1-0 h1:XHSz3zZKC4NCP2ja1rI7++DXFhA+uDhdYa3MykCTGHY=
-github.com/NVIDIA/go-nvml v0.11.1-0/go.mod h1:hy7HYeQy335x6nEss0Ne3PYqleRa6Ct+VKD9RQ4nyFs=
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-github.com/PaesslerAG/gval v1.1.2/go.mod h1:Fa8gfkCmUsELXgayr8sfL/sw+VzCVoa03dcOcR/if2w=
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+github.com/ClusterCockpit/cc-energy-manager v0.0.0-20240709142550-dd446f7ab900/go.mod h1:EbYeC5t+Y0kW1Q1pP2n9zMqbeYEJITG8YGvAUihXVn4=
+github.com/ClusterCockpit/cc-units v0.4.0 h1:zP5DOu99GmErW0tCDf0gcLrlWt42RQ9dpoONEOh4cI0=
+github.com/ClusterCockpit/cc-units v0.4.0/go.mod h1:3S3PAhAayS3pbgcT4q9Vn9VJw22Op51X0YimtG77zBw=
+github.com/ClusterCockpit/go-rocm-smi v0.3.0 h1:1qZnSpG7/NyLtc7AjqnUL9Jb8xtqG1nMVgp69rJfaR8=
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+github.com/NVIDIA/go-nvml v0.12.0-2/go.mod h1:7ruy85eOM73muOc/I37euONSwEyFqZsv5ED9AogD4G0=
+github.com/PaesslerAG/gval v1.2.2 h1:Y7iBzhgE09IGTt5QgGQ2IdaYYYOU134YGHBThD+wm9E=
+github.com/PaesslerAG/gval v1.2.2/go.mod h1:XRFLwvmkTEdYziLdaCeCa5ImcGVrfQbeNUbVR+C6xac=
+github.com/PaesslerAG/jsonpath v0.1.0 h1:gADYeifvlqK3R3i2cR5B4DGgxLXIPb3TRTH1mGi0jPI=
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-github.com/cyberdelia/templates v0.0.0-20141128023046-ca7fffd4298c/go.mod h1:GyV+0YP4qX0UQ7r2MoYZ+AvYDp12OF5yg4q8rGnyNh4=
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+github.com/apapsch/go-jsonmerge/v2 v2.0.0 h1:axGnT1gRIfimI7gJifB699GoE/oq+F2MU7Dml6nw9rQ=
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+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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-github.com/deepmap/oapi-codegen v1.8.2 h1:SegyeYGcdi0jLLrpbCMoJxnUUn8GBXHsvr4rbzjuhfU=
-github.com/deepmap/oapi-codegen v1.8.2/go.mod h1:YLgSKSDv/bZQB7N4ws6luhozi3cEdRktEqrX88CvjIw=
-github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
-github.com/getkin/kin-openapi v0.61.0/go.mod h1:7Yn5whZr5kJi6t+kShccXS8ae1APpYTW6yheSwk8Yi4=
-github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
-github.com/go-chi/chi/v5 v5.0.0/go.mod h1:BBug9lr0cqtdAhsu6R4AAdvufI0/XBzAQSsUqJpoZOs=
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 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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internal/ccMetric/README.md

@@ -1,32 +0,0 @@
-# ClusterCockpit metrics
-
-As described in the [ClusterCockpit specifications](https://github.com/ClusterCockpit/cc-specifications), the whole ClusterCockpit stack uses metrics in the InfluxDB line protocol format. This is also the input and output format for the ClusterCockpit Metric Collector but internally it uses an extended format while processing, named CCMetric.
-
-It is basically a copy of the [InfluxDB line protocol](https://github.com/influxdata/line-protocol) `MutableMetric` interface with one extension. Besides the tags and fields, it contains a list of meta information (re-using the `Tag` structure of the original protocol):
-
-```golang
-type ccMetric struct {
-    name   string            // same as
-    tags   []*influx.Tag     // original
-    fields []*influx.Field   // Influx
-    tm     time.Time         // line-protocol
-    meta   []*influx.Tag
-}
-
-type CCMetric interface {
-    influx.MutableMetric        // the same functions as defined by influx.MutableMetric
-    RemoveTag(key string)       // this is not published by the original influx.MutableMetric
-    Meta() map[string]string
-    MetaList() []*inlux.Tag
-    AddMeta(key, value string)
-    HasMeta(key string) bool
-    GetMeta(key string) (string, bool)
-    RemoveMeta(key string)
-}
-```
-
-The `CCMetric` interface provides the same functions as the `MutableMetric` like `{Add, Remove, Has}{Tag, Field}` and additionally provides `{Add, Remove, Has}Meta`.
-
-The InfluxDB protocol creates a new metric with `influx.New(name, tags, fields, time)` while CCMetric uses `ccMetric.New(name, tags, meta, fields, time)` where `tags` and `meta` are both of type `map[string]string`.
-
-You can copy a CCMetric with `FromMetric(other CCMetric) CCMetric`. If you get an `influx.Metric` from a function, like the line protocol parser, you can use `FromInfluxMetric(other influx.Metric) CCMetric` to get a CCMetric out of it (see `NatsReceiver` for an example).

internal/ccMetric/ccMetric.go

@@ -1,409 +0,0 @@
-package ccmetric
-
-import (
-	"fmt"
-	"sort"
-	"time"
-
-	lp "github.com/influxdata/line-protocol" // MIT license
-)
-
-// Most functions are derived from github.com/influxdata/line-protocol/metric.go
-// The metric type is extended with an extra meta information list re-using the Tag
-// type.
-
-type ccMetric struct {
-	name   string
-	tags   []*lp.Tag
-	fields []*lp.Field
-	tm     time.Time
-	meta   []*lp.Tag
-}
-
-type CCMetric interface {
-	lp.MutableMetric
-	AddMeta(key, value string)
-	MetaList() []*lp.Tag
-	RemoveTag(key string)
-	GetTag(key string) (string, bool)
-	GetMeta(key string) (string, bool)
-	GetField(key string) (interface{}, bool)
-	HasField(key string) bool
-	RemoveField(key string)
-}
-
-func (m *ccMetric) Meta() map[string]string {
-	meta := make(map[string]string, len(m.meta))
-	for _, m := range m.meta {
-		meta[m.Key] = m.Value
-	}
-	return meta
-}
-
-func (m *ccMetric) MetaList() []*lp.Tag {
-	return m.meta
-}
-
-func (m *ccMetric) String() string {
-	return fmt.Sprintf("%s %v %v %v %d", m.name, m.Tags(), m.Meta(), m.Fields(), m.tm.UnixNano())
-}
-
-func (m *ccMetric) Name() string {
-	return m.name
-}
-
-func (m *ccMetric) Tags() map[string]string {
-	tags := make(map[string]string, len(m.tags))
-	for _, tag := range m.tags {
-		tags[tag.Key] = tag.Value
-	}
-	return tags
-}
-
-func (m *ccMetric) TagList() []*lp.Tag {
-	return m.tags
-}
-
-func (m *ccMetric) Fields() map[string]interface{} {
-	fields := make(map[string]interface{}, len(m.fields))
-	for _, field := range m.fields {
-		fields[field.Key] = field.Value
-	}
-
-	return fields
-}
-
-func (m *ccMetric) FieldList() []*lp.Field {
-	return m.fields
-}
-
-func (m *ccMetric) Time() time.Time {
-	return m.tm
-}
-
-func (m *ccMetric) SetTime(t time.Time) {
-	m.tm = t
-}
-
-func (m *ccMetric) HasTag(key string) bool {
-	for _, tag := range m.tags {
-		if tag.Key == key {
-			return true
-		}
-	}
-	return false
-}
-
-func (m *ccMetric) GetTag(key string) (string, bool) {
-	for _, tag := range m.tags {
-		if tag.Key == key {
-			return tag.Value, true
-		}
-	}
-	return "", false
-}
-
-func (m *ccMetric) RemoveTag(key string) {
-	for i, tag := range m.tags {
-		if tag.Key == key {
-			copy(m.tags[i:], m.tags[i+1:])
-			m.tags[len(m.tags)-1] = nil
-			m.tags = m.tags[:len(m.tags)-1]
-			return
-		}
-	}
-}
-
-func (m *ccMetric) AddTag(key, value string) {
-	for i, tag := range m.tags {
-		if key > tag.Key {
-			continue
-		}
-
-		if key == tag.Key {
-			tag.Value = value
-			return
-		}
-
-		m.tags = append(m.tags, nil)
-		copy(m.tags[i+1:], m.tags[i:])
-		m.tags[i] = &lp.Tag{Key: key, Value: value}
-		return
-	}
-
-	m.tags = append(m.tags, &lp.Tag{Key: key, Value: value})
-}
-
-func (m *ccMetric) HasMeta(key string) bool {
-	for _, tag := range m.meta {
-		if tag.Key == key {
-			return true
-		}
-	}
-	return false
-}
-
-func (m *ccMetric) GetMeta(key string) (string, bool) {
-	for _, tag := range m.meta {
-		if tag.Key == key {
-			return tag.Value, true
-		}
-	}
-	return "", false
-}
-
-func (m *ccMetric) RemoveMeta(key string) {
-	for i, tag := range m.meta {
-		if tag.Key == key {
-			copy(m.meta[i:], m.meta[i+1:])
-			m.meta[len(m.meta)-1] = nil
-			m.meta = m.meta[:len(m.meta)-1]
-			return
-		}
-	}
-}
-
-func (m *ccMetric) AddMeta(key, value string) {
-	for i, tag := range m.meta {
-		if key > tag.Key {
-			continue
-		}
-
-		if key == tag.Key {
-			tag.Value = value
-			return
-		}
-
-		m.meta = append(m.meta, nil)
-		copy(m.meta[i+1:], m.meta[i:])
-		m.meta[i] = &lp.Tag{Key: key, Value: value}
-		return
-	}
-
-	m.meta = append(m.meta, &lp.Tag{Key: key, Value: value})
-}
-
-func (m *ccMetric) AddField(key string, value interface{}) {
-	for i, field := range m.fields {
-		if key == field.Key {
-			m.fields[i] = &lp.Field{Key: key, Value: convertField(value)}
-			return
-		}
-	}
-	m.fields = append(m.fields, &lp.Field{Key: key, Value: convertField(value)})
-}
-
-func (m *ccMetric) GetField(key string) (interface{}, bool) {
-	for _, field := range m.fields {
-		if field.Key == key {
-			return field.Value, true
-		}
-	}
-	return "", false
-}
-
-func (m *ccMetric) HasField(key string) bool {
-	for _, field := range m.fields {
-		if field.Key == key {
-			return true
-		}
-	}
-	return false
-}
-
-func (m *ccMetric) RemoveField(key string) {
-	for i, field := range m.fields {
-		if field.Key == key {
-			copy(m.fields[i:], m.fields[i+1:])
-			m.fields[len(m.fields)-1] = nil
-			m.fields = m.fields[:len(m.fields)-1]
-			return
-		}
-	}
-}
-
-func New(
-	name string,
-	tags map[string]string,
-	meta map[string]string,
-	fields map[string]interface{},
-	tm time.Time,
-) (CCMetric, error) {
-	m := &ccMetric{
-		name:   name,
-		tags:   nil,
-		fields: nil,
-		tm:     tm,
-		meta:   nil,
-	}
-
-	if len(tags) > 0 {
-		m.tags = make([]*lp.Tag, 0, len(tags))
-		for k, v := range tags {
-			m.tags = append(m.tags,
-				&lp.Tag{Key: k, Value: v})
-		}
-		sort.Slice(m.tags, func(i, j int) bool { return m.tags[i].Key < m.tags[j].Key })
-	}
-
-	if len(meta) > 0 {
-		m.meta = make([]*lp.Tag, 0, len(meta))
-		for k, v := range meta {
-			m.meta = append(m.meta,
-				&lp.Tag{Key: k, Value: v})
-		}
-		sort.Slice(m.meta, func(i, j int) bool { return m.meta[i].Key < m.meta[j].Key })
-	}
-
-	if len(fields) > 0 {
-		m.fields = make([]*lp.Field, 0, len(fields))
-		for k, v := range fields {
-			v := convertField(v)
-			if v == nil {
-				continue
-			}
-			m.AddField(k, v)
-		}
-	}
-
-	return m, nil
-}
-
-func FromMetric(other CCMetric) CCMetric {
-	m := &ccMetric{
-		name:   other.Name(),
-		tags:   make([]*lp.Tag, len(other.TagList())),
-		fields: make([]*lp.Field, len(other.FieldList())),
-		meta:   make([]*lp.Tag, len(other.MetaList())),
-		tm:     other.Time(),
-	}
-
-	for i, tag := range other.TagList() {
-		m.tags[i] = &lp.Tag{Key: tag.Key, Value: tag.Value}
-	}
-	for i, s := range other.MetaList() {
-		m.meta[i] = &lp.Tag{Key: s.Key, Value: s.Value}
-	}
-
-	for i, field := range other.FieldList() {
-		m.fields[i] = &lp.Field{Key: field.Key, Value: field.Value}
-	}
-	return m
-}
-
-func FromInfluxMetric(other lp.Metric) CCMetric {
-	m := &ccMetric{
-		name:   other.Name(),
-		tags:   make([]*lp.Tag, len(other.TagList())),
-		fields: make([]*lp.Field, len(other.FieldList())),
-		meta:   make([]*lp.Tag, 0),
-		tm:     other.Time(),
-	}
-
-	for i, tag := range other.TagList() {
-		m.tags[i] = &lp.Tag{Key: tag.Key, Value: tag.Value}
-	}
-
-	for i, field := range other.FieldList() {
-		m.fields[i] = &lp.Field{Key: field.Key, Value: field.Value}
-	}
-	return m
-}
-
-func convertField(v interface{}) interface{} {
-	switch v := v.(type) {
-	case float64:
-		return v
-	case int64:
-		return v
-	case string:
-		return v
-	case bool:
-		return v
-	case int:
-		return int64(v)
-	case uint:
-		return uint64(v)
-	case uint64:
-		return uint64(v)
-	case []byte:
-		return string(v)
-	case int32:
-		return int64(v)
-	case int16:
-		return int64(v)
-	case int8:
-		return int64(v)
-	case uint32:
-		return uint64(v)
-	case uint16:
-		return uint64(v)
-	case uint8:
-		return uint64(v)
-	case float32:
-		return float64(v)
-	case *float64:
-		if v != nil {
-			return *v
-		}
-	case *int64:
-		if v != nil {
-			return *v
-		}
-	case *string:
-		if v != nil {
-			return *v
-		}
-	case *bool:
-		if v != nil {
-			return *v
-		}
-	case *int:
-		if v != nil {
-			return int64(*v)
-		}
-	case *uint:
-		if v != nil {
-			return uint64(*v)
-		}
-	case *uint64:
-		if v != nil {
-			return uint64(*v)
-		}
-	case *[]byte:
-		if v != nil {
-			return string(*v)
-		}
-	case *int32:
-		if v != nil {
-			return int64(*v)
-		}
-	case *int16:
-		if v != nil {
-			return int64(*v)
-		}
-	case *int8:
-		if v != nil {
-			return int64(*v)
-		}
-	case *uint32:
-		if v != nil {
-			return uint64(*v)
-		}
-	case *uint16:
-		if v != nil {
-			return uint64(*v)
-		}
-	case *uint8:
-		if v != nil {
-			return uint64(*v)
-		}
-	case *float32:
-		if v != nil {
-			return float64(*v)
-		}
-	default:
-		return nil
-	}
-	return nil
-}

internal/ccTopology/ccTopology.go

@@ -1,277 +0,0 @@
-package ccTopology
-
-import (
-	"fmt"
-	"io/ioutil"
-	"log"
-	"os"
-	"path/filepath"
-	"strconv"
-	"strings"
-
-	cclogger "github.com/ClusterCockpit/cc-metric-collector/internal/ccLogger"
-)
-
-// intArrayContains scans an array of ints if the value str is present in the array
-// If the specified value is found, the corresponding array index is returned.
-// The bool value is used to signal success or failure
-func intArrayContains(array []int, str int) (int, bool) {
-	for i, a := range array {
-		if a == str {
-			return i, true
-		}
-	}
-	return -1, false
-}
-
-// stringArrayContains scans an array of strings if the value str is present in the array
-// If the specified value is found, the corresponding array index is returned.
-// The bool value is used to signal success or failure
-// func stringArrayContains(array []string, str string) (int, bool) {
-// 	for i, a := range array {
-// 		if a == str {
-// 			return i, true
-// 		}
-// 	}
-// 	return -1, false
-// }
-
-func SocketList() []int {
-	buffer, err := ioutil.ReadFile("/proc/cpuinfo")
-	if err != nil {
-		log.Print(err)
-		return nil
-	}
-	ll := strings.Split(string(buffer), "\n")
-	var packs []int
-	for _, line := range ll {
-		if strings.HasPrefix(line, "physical id") {
-			lv := strings.Fields(line)
-			id, err := strconv.ParseInt(lv[3], 10, 32)
-			if err != nil {
-				log.Print(err)
-				return packs
-			}
-			_, found := intArrayContains(packs, int(id))
-			if !found {
-				packs = append(packs, int(id))
-			}
-		}
-	}
-	return packs
-}
-
-func CpuList() []int {
-	buffer, err := ioutil.ReadFile("/proc/cpuinfo")
-	if err != nil {
-		log.Print(err)
-		return nil
-	}
-	ll := strings.Split(string(buffer), "\n")
-	var cpulist []int
-	for _, line := range ll {
-		if strings.HasPrefix(line, "processor") {
-			lv := strings.Fields(line)
-			id, err := strconv.ParseInt(lv[2], 10, 32)
-			if err != nil {
-				log.Print(err)
-				return cpulist
-			}
-			_, found := intArrayContains(cpulist, int(id))
-			if !found {
-				cpulist = append(cpulist, int(id))
-			}
-		}
-	}
-	return cpulist
-}
-
-type CpuEntry struct {
-	Cpuid      int
-	SMT        int
-	Core       int
-	Socket     int
-	Numadomain int
-	Die        int
-}
-
-func CpuData() []CpuEntry {
-
-	fileToInt := func(path string) int {
-		buffer, err := ioutil.ReadFile(path)
-		if err != nil {
-			log.Print(err)
-			cclogger.ComponentError("ccTopology", "Reading", path, ":", err.Error())
-			return -1
-		}
-		sbuffer := strings.Replace(string(buffer), "\n", "", -1)
-		var id int64
-		//_, err = fmt.Scanf("%d", sbuffer, &id)
-		id, err = strconv.ParseInt(sbuffer, 10, 32)
-		if err != nil {
-			cclogger.ComponentError("ccTopology", "Parsing", path, ":", sbuffer, err.Error())
-			return -1
-		}
-		return int(id)
-	}
-	getCore := func(basepath string) int {
-		return fileToInt(fmt.Sprintf("%s/core_id", basepath))
-	}
-
-	getSocket := func(basepath string) int {
-		return fileToInt(fmt.Sprintf("%s/physical_package_id", basepath))
-	}
-
-	getDie := func(basepath string) int {
-		return fileToInt(fmt.Sprintf("%s/die_id", basepath))
-	}
-
-	getSMT := func(cpuid int, basepath string) int {
-		buffer, err := ioutil.ReadFile(fmt.Sprintf("%s/thread_siblings_list", basepath))
-		if err != nil {
-			log.Print(err)
-		}
-		threadlist := make([]int, 0)
-		sbuffer := strings.Replace(string(buffer), "\n", "", -1)
-		for _, x := range strings.Split(sbuffer, ",") {
-			id, err := strconv.ParseInt(x, 10, 32)
-			if err != nil {
-				log.Print(err)
-			}
-			threadlist = append(threadlist, int(id))
-		}
-		for i, x := range threadlist {
-			if x == cpuid {
-				return i
-			}
-		}
-		return 1
-	}
-
-	getNumaDomain := func(basepath string) int {
-		files, err := filepath.Glob(fmt.Sprintf("%s/node*", basepath))
-		if err != nil {
-			log.Print(err)
-		}
-		for _, f := range files {
-			finfo, err := os.Lstat(f)
-			if err == nil && (finfo.IsDir() || finfo.Mode()&os.ModeSymlink != 0) {
-				var id int
-				parts := strings.Split(f, "/")
-				_, err = fmt.Scanf("node%d", parts[len(parts)-1], &id)
-				if err == nil {
-					return id
-				}
-			}
-		}
-		return 0
-	}
-
-	clist := make([]CpuEntry, 0)
-	for _, c := range CpuList() {
-		clist = append(clist, CpuEntry{Cpuid: c})
-	}
-	for _, centry := range clist {
-		centry.Socket = -1
-		centry.Numadomain = -1
-		centry.Die = -1
-		centry.Core = -1
-		// Set base directory for topology lookup
-		base := fmt.Sprintf("/sys/devices/system/cpu/cpu%d/topology", centry.Cpuid)
-
-		// Lookup CPU core id
-		centry.Core = getCore(base)
-
-		// Lookup CPU socket id
-		centry.Socket = getSocket(base)
-
-		// Lookup CPU die id
-		centry.Die = getDie(base)
-
-		// Lookup SMT thread id
-		centry.SMT = getSMT(centry.Cpuid, base)
-
-		// Lookup NUMA domain id
-		centry.Numadomain = getNumaDomain(base)
-
-	}
-	return clist
-}
-
-type CpuInformation struct {
-	NumHWthreads   int
-	SMTWidth       int
-	NumSockets     int
-	NumDies        int
-	NumNumaDomains int
-}
-
-func CpuInfo() CpuInformation {
-	var c CpuInformation
-
-	smt := 0
-	numa := 0
-	die := 0
-	socket := 0
-	cdata := CpuData()
-	for _, d := range cdata {
-		if d.SMT > smt {
-			smt = d.SMT
-		}
-		if d.Numadomain > numa {
-			numa = d.Numadomain
-		}
-		if d.Die > die {
-			die = d.Die
-		}
-		if d.Socket > socket {
-			socket = d.Socket
-		}
-	}
-	c.NumNumaDomains = numa + 1
-	c.SMTWidth = smt + 1
-	c.NumDies = die + 1
-	c.NumSockets = socket + 1
-	c.NumHWthreads = len(cdata)
-	return c
-}
-
-func GetCpuSocket(cpuid int) int {
-	cdata := CpuData()
-	for _, d := range cdata {
-		if d.Cpuid == cpuid {
-			return d.Socket
-		}
-	}
-	return -1
-}
-
-func GetCpuNumaDomain(cpuid int) int {
-	cdata := CpuData()
-	for _, d := range cdata {
-		if d.Cpuid == cpuid {
-			return d.Numadomain
-		}
-	}
-	return -1
-}
-
-func GetCpuDie(cpuid int) int {
-	cdata := CpuData()
-	for _, d := range cdata {
-		if d.Cpuid == cpuid {
-			return d.Die
-		}
-	}
-	return -1
-}
-
-func GetCpuCore(cpuid int) int {
-	cdata := CpuData()
-	for _, d := range cdata {
-		if d.Cpuid == cpuid {
-			return d.Core
-		}
-	}
-	return -1
-}

internal/metricAggregator/README.md

@@ -0,0 +1,38 @@
+# The MetricAggregator
+
+In some cases, further combination of metrics or raw values is required. For that strings like `foo + 1` with runtime dependent `foo` need to be evaluated. The MetricAggregator relies on the [`gval`](https://github.com/PaesslerAG/gval) Golang package to perform all expression evaluation. The `gval` package provides the basic arithmetic operations but the MetricAggregator defines additional ones.
+
+**Note**: To get an impression which expressions can be handled by `gval`, see its [README](https://github.com/PaesslerAG/gval/blob/master/README.md)
+
+## Simple expression evaluation
+
+For simple expression evaluation, the MetricAggregator provides two function for different use-cases:
+- `EvalBoolCondition(expression string, params map[string]interface{}`: Used by the MetricRouter to match metrics like `metric.Name() == 'mymetric'`
+- `EvalFloat64Condition(expression string, params map[string]interface{})`: Used by the MetricRouter and LikwidCollector to derive new values like `(PMC0+PMC1)/PMC3`
+
+## MetricAggregator extensions for `gval`
+
+The MetricAggregator provides these functions additional to the `Full` language in `gval`:
+- `sum(array)`: Sum up values in an array like `sum(values)`
+- `min(array)`: Get the minimum value in an array like `min(values)`
+- `avg(array)`: Get the mean value in an array like `avg(values)`
+- `mean(array)`: Get the mean value in an array like `mean(values)`
+- `max(array)`: Get the maximum value in an array like `max(values)`
+- `len(array)`: Get the length of an array like `len(values)`
+- `median(array)`: Get the median value in an array like `mean(values)`
+- `in`: Check existence in an array like `0 in getCpuList()` to check whether there is an entry `0`. Also substring matching works like `temp in metric.Name()`
+- `match`: Regular-expression matching like `match('temp_cores_%d+', metric.Name())`. **Note** all `\` in an regex has to be replaced with `%`
+- `getCpuCore(cpuid)`: For a CPU id, the the corresponding CPU core id like `getCpuCore(0)`
+- `getCpuSocket(cpuid)`: For a CPU id, the the corresponding CPU socket id
+- `getCpuNuma(cpuid)`: For a CPU id, the the corresponding NUMA domain id
+- `getCpuDie(cpuid)`: For a CPU id, the the corresponding CPU die id
+- `getSockCpuList(sockid)`: For a given CPU socket id, the list of CPU ids is returned like the CPUs on socket 1 `getSockCpuList(1)`
+- `getNumaCpuList(numaid)`: For a given NUMA node id, the list of CPU ids is returned
+- `getDieCpuList(dieid)`: For a given CPU die id, the list of CPU ids is returned
+- `getCoreCpuList(coreid)`: For a given CPU core id, the list of CPU ids is returned
+- `getCpuList`: Get the list of all CPUs
+
+## Limitations
+
+- Since the metrics are written in JSON files which do not allow `""` without proper escaping inside of JSON strings, you have to use `''` for strings.
+- Since `\` is interpreted by JSON as escape character, it cannot be used in metrics. But it is required to write regular expressions. So instead of `/`, use `%` and the MetricAggregator replaces them after reading the JSON file.

internal/metricAggregator/metricAggregator.go

@@ -1,21 +1,23 @@
-package metricRouter
+package metricAggregator
 
 import (
 	"context"
 	"fmt"
+	"math"
 	"os"
 	"strings"
+	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-metric-collector/internal/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
-	topo "github.com/ClusterCockpit/cc-metric-collector/internal/ccTopology"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	topo "github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
 
 	"github.com/PaesslerAG/gval"
 )
 
-type metricAggregatorIntervalConfig struct {
+type MetricAggregatorIntervalConfig struct {
 	Name      string            `json:"name"`     // Metric name for the new metric
 	Function  string            `json:"function"` // Function to apply on the metric
 	Condition string            `json:"if"`       // Condition for applying function
@@ -26,17 +28,17 @@ type metricAggregatorIntervalConfig struct {
 }
 
 type metricAggregator struct {
-	functions []*metricAggregatorIntervalConfig
+	functions []*MetricAggregatorIntervalConfig
 	constants map[string]interface{}
 	language  gval.Language
-	output    chan lp.CCMetric
+	output    chan lp.CCMessage
 }
 
 type MetricAggregator interface {
 	AddAggregation(name, function, condition string, tags, meta map[string]string) error
 	DeleteAggregation(name string) error
-	Init(output chan lp.CCMetric) error
-	Eval(starttime time.Time, endtime time.Time, metrics []lp.CCMetric)
+	Init(output chan lp.CCMessage) error
+	Eval(starttime time.Time, endtime time.Time, metrics []lp.CCMessage)
 }
 
 var metricCacheLanguage = gval.NewLanguage(
@@ -61,10 +63,20 @@ var metricCacheLanguage = gval.NewLanguage(
 	gval.Function("getCpuList", getCpuListOfNode),
 	gval.Function("getCpuListOfType", getCpuListOfType),
 )
+var language gval.Language = gval.NewLanguage(
+	gval.Full(),
+	metricCacheLanguage,
+)
+var evaluables = struct {
+	mapping map[string]gval.Evaluable
+	mutex   sync.Mutex
+}{
+	mapping: make(map[string]gval.Evaluable),
+}
 
-func (c *metricAggregator) Init(output chan lp.CCMetric) error {
+func (c *metricAggregator) Init(output chan lp.CCMessage) error {
 	c.output = output
-	c.functions = make([]*metricAggregatorIntervalConfig, 0)
+	c.functions = make([]*MetricAggregatorIntervalConfig, 0)
 	c.constants = make(map[string]interface{})
 
 	// add constants like hostname, numSockets, ... to constants list
@@ -84,7 +96,7 @@ func (c *metricAggregator) Init(output chan lp.CCMetric) error {
 	c.constants["smtWidth"] = cinfo.SMTWidth
 
 	c.language = gval.NewLanguage(
-		gval.Base(),
+		gval.Full(),
 		metricCacheLanguage,
 	)
 
@@ -100,7 +112,7 @@ func (c *metricAggregator) Init(output chan lp.CCMetric) error {
 	return nil
 }
 
-func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics []lp.CCMetric) {
+func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics []lp.CCMessage) {
 	vars := make(map[string]interface{})
 	for k, v := range c.constants {
 		vars[k] = v
@@ -109,8 +121,13 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 	vars["endtime"] = endtime
 	for _, f := range c.functions {
 		cclog.ComponentDebug("MetricCache", "COLLECT", f.Name, "COND", f.Condition)
-		values := make([]float64, 0)
-		matches := make([]lp.CCMetric, 0)
+		var valuesFloat64 []float64
+		var valuesFloat32 []float32
+		var valuesInt []int
+		var valuesInt32 []int32
+		var valuesInt64 []int64
+		var valuesBool []bool
+		matches := make([]lp.CCMessage, 0)
 		for _, m := range metrics {
 			vars["metric"] = m
 			//value, err := gval.Evaluate(f.Condition, vars, c.language)
@@ -124,17 +141,17 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 				if valid {
 					switch x := v.(type) {
 					case float64:
-						values = append(values, x)
+						valuesFloat64 = append(valuesFloat64, x)
 					case float32:
+						valuesFloat32 = append(valuesFloat32, x)
 					case int:
+						valuesInt = append(valuesInt, x)
+					case int32:
+						valuesInt32 = append(valuesInt32, x)
 					case int64:
-						values = append(values, float64(x))
+						valuesInt64 = append(valuesInt64, x)
 					case bool:
-						if x {
-							values = append(values, float64(1.0))
-						} else {
-							values = append(values, float64(0.0))
-						}
+						valuesBool = append(valuesBool, x)
 					default:
 						cclog.ComponentError("MetricCache", "COLLECT ADD VALUE", v, "FAILED")
 					}
@@ -143,17 +160,63 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 			}
 		}
 		delete(vars, "metric")
-		cclog.ComponentDebug("MetricCache", "EVALUATE", f.Name, "METRICS", len(values), "CALC", f.Function)
-		vars["values"] = values
+
+		// Check, that only values of one type were collected
+		countValueTypes := 0
+		if len(valuesFloat64) > 0 {
+			countValueTypes += 1
+		}
+		if len(valuesFloat32) > 0 {
+			countValueTypes += 1
+		}
+		if len(valuesInt) > 0 {
+			countValueTypes += 1
+		}
+		if len(valuesInt32) > 0 {
+			countValueTypes += 1
+		}
+		if len(valuesInt64) > 0 {
+			countValueTypes += 1
+		}
+		if len(valuesBool) > 0 {
+			countValueTypes += 1
+		}
+		if countValueTypes > 1 {
+			cclog.ComponentError("MetricCache", "Collected values of different types")
+		}
+
+		var len_values int
+		switch {
+		case len(valuesFloat64) > 0:
+			vars["values"] = valuesFloat64
+			len_values = len(valuesFloat64)
+		case len(valuesFloat32) > 0:
+			vars["values"] = valuesFloat32
+			len_values = len(valuesFloat32)
+		case len(valuesInt) > 0:
+			vars["values"] = valuesInt
+			len_values = len(valuesInt)
+		case len(valuesInt32) > 0:
+			vars["values"] = valuesInt32
+			len_values = len(valuesInt32)
+		case len(valuesInt64) > 0:
+			vars["values"] = valuesInt64
+			len_values = len(valuesInt64)
+		case len(valuesBool) > 0:
+			vars["values"] = valuesBool
+			len_values = len(valuesBool)
+		}
+		cclog.ComponentDebug("MetricCache", "EVALUATE", f.Name, "METRICS", len_values, "CALC", f.Function)
+
 		vars["metrics"] = matches
-		if len(values) > 0 {
+		if len_values > 0 {
 			value, err := gval.Evaluate(f.Function, vars, c.language)
 			if err != nil {
-				cclog.ComponentError("MetricCache", "EVALUATE", f.Name, "METRICS", len(values), "CALC", f.Function, ":", err.Error())
+				cclog.ComponentError("MetricCache", "EVALUATE", f.Name, "METRICS", len_values, "CALC", f.Function, ":", err.Error())
 				break
 			}
 
-			copy_tags := func(tags map[string]string, metrics []lp.CCMetric) map[string]string {
+			copy_tags := func(tags map[string]string, metrics []lp.CCMessage) map[string]string {
 				out := make(map[string]string)
 				for key, value := range tags {
 					switch value {
@@ -170,7 +233,7 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 				}
 				return out
 			}
-			copy_meta := func(meta map[string]string, metrics []lp.CCMetric) map[string]string {
+			copy_meta := func(meta map[string]string, metrics []lp.CCMessage) map[string]string {
 				out := make(map[string]string)
 				for key, value := range meta {
 					switch value {
@@ -190,18 +253,18 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 			tags := copy_tags(f.Tags, matches)
 			meta := copy_meta(f.Meta, matches)
 
-			var m lp.CCMetric
+			var m lp.CCMessage
 			switch t := value.(type) {
 			case float64:
-				m, err = lp.New(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			case float32:
-				m, err = lp.New(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			case int:
-				m, err = lp.New(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			case int64:
-				m, err = lp.New(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			case string:
-				m, err = lp.New(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			default:
 				cclog.ComponentError("MetricCache", "Gval returned invalid type", t, "skipping metric", f.Name)
 			}
@@ -245,15 +308,16 @@ func (c *metricAggregator) AddAggregation(name, function, condition string, tags
 			return nil
 		}
 	}
-	var agg metricAggregatorIntervalConfig
-	agg.Name = name
-	agg.Condition = newcond
-	agg.gvalCond = gvalCond
-	agg.Function = newfunc
-	agg.gvalFunc = gvalFunc
-	agg.Tags = tags
-	agg.Meta = meta
-	c.functions = append(c.functions, &agg)
+	agg := &MetricAggregatorIntervalConfig{
+		Name:      name,
+		Condition: newcond,
+		gvalCond:  gvalCond,
+		Function:  newfunc,
+		gvalFunc:  gvalFunc,
+		Tags:      tags,
+		Meta:      meta,
+	}
+	c.functions = append(c.functions, agg)
 	return nil
 }
 
@@ -281,7 +345,51 @@ func (c *metricAggregator) AddFunction(name string, function func(args ...interf
 	c.language = gval.NewLanguage(c.language, gval.Function(name, function))
 }
 
-func NewAggregator(output chan lp.CCMetric) (MetricAggregator, error) {
+func EvalBoolCondition(condition string, params map[string]interface{}) (bool, error) {
+	evaluables.mutex.Lock()
+	evaluable, ok := evaluables.mapping[condition]
+	evaluables.mutex.Unlock()
+	if !ok {
+		newcond :=
+			strings.ReplaceAll(
+				strings.ReplaceAll(
+					condition, "'", "\""), "%", "\\")
+		var err error
+		evaluable, err = language.NewEvaluable(newcond)
+		if err != nil {
+			return false, err
+		}
+		evaluables.mutex.Lock()
+		evaluables.mapping[condition] = evaluable
+		evaluables.mutex.Unlock()
+	}
+	value, err := evaluable.EvalBool(context.Background(), params)
+	return value, err
+}
+
+func EvalFloat64Condition(condition string, params map[string]float64) (float64, error) {
+	evaluables.mutex.Lock()
+	evaluable, ok := evaluables.mapping[condition]
+	evaluables.mutex.Unlock()
+	if !ok {
+		newcond :=
+			strings.ReplaceAll(
+				strings.ReplaceAll(
+					condition, "'", "\""), "%", "\\")
+		var err error
+		evaluable, err = language.NewEvaluable(newcond)
+		if err != nil {
+			return math.NaN(), err
+		}
+		evaluables.mutex.Lock()
+		evaluables.mapping[condition] = evaluable
+		evaluables.mutex.Unlock()
+	}
+	value, err := evaluable.EvalFloat64(context.Background(), params)
+	return value, err
+}
+
+func NewAggregator(output chan lp.CCMessage) (MetricAggregator, error) {
 	a := new(metricAggregator)
 	err := a.Init(output)
 	if err != nil {

internal/metricAggregator/metricAggregatorFunctions.go

@@ -1,164 +1,169 @@
-package metricRouter
+package metricAggregator
 
 import (
 	"errors"
 	"fmt"
-	"math"
 	"regexp"
-	"sort"
 	"strings"
 
-	cclog "github.com/ClusterCockpit/cc-metric-collector/internal/ccLogger"
-	topo "github.com/ClusterCockpit/cc-metric-collector/internal/ccTopology"
+	"golang.org/x/exp/slices"
+
+	topo "github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
 )
 
 /*
  * Arithmetic functions on value arrays
  */
 
-// Sum up values
-func sumfunc(args ...interface{}) (interface{}, error) {
-	s := 0.0
-	values, ok := args[0].([]float64)
-	if ok {
-		cclog.ComponentDebug("MetricCache", "SUM FUNC START")
-		for _, x := range values {
-			s += x
+func sumAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error) {
+	if len(values) == 0 {
+		return 0.0, errors.New("sum function requires at least one argument")
 	}
-		cclog.ComponentDebug("MetricCache", "SUM FUNC END", s)
-	} else {
-		cclog.ComponentDebug("MetricCache", "SUM FUNC CAST FAILED")
+	var sum T
+	for _, value := range values {
+		sum += value
 	}
-	return s, nil
+	return sum, nil
 }
 
-// Get the minimum value
-func minfunc(args ...interface{}) (interface{}, error) {
-	var err error = nil
-	switch values := args[0].(type) {
+// Sum up values
+func sumfunc(args interface{}) (interface{}, error) {
+
+	var err error
+	switch values := args.(type) {
 	case []float64:
-		var s float64 = math.MaxFloat64
-		for _, x := range values {
-			if x < s {
-				s = x
-			}
-		}
-		return s, nil
+		return sumAnyType(values)
 	case []float32:
-		var s float32 = math.MaxFloat32
-		for _, x := range values {
-			if x < s {
-				s = x
-			}
-		}
-		return s, nil
+		return sumAnyType(values)
 	case []int:
-		var s int = int(math.MaxInt32)
-		for _, x := range values {
-			if x < s {
-				s = x
-			}
-		}
-		return s, nil
+		return sumAnyType(values)
 	case []int64:
-		var s int64 = math.MaxInt64
-		for _, x := range values {
-			if x < s {
-				s = x
-			}
-		}
-		return s, nil
+		return sumAnyType(values)
 	case []int32:
-		var s int32 = math.MaxInt32
-		for _, x := range values {
-			if x < s {
-				s = x
-			}
-		}
-		return s, nil
+		return sumAnyType(values)
 	default:
-		err = errors.New("function 'min' only on list of values (float64, float32, int, int32, int64)")
+		err = errors.New("function 'sum' only on list of values (float64, float32, int, int32, int64)")
 	}
 
 	return 0.0, err
 }
 
-// Get the average or mean value
-func avgfunc(args ...interface{}) (interface{}, error) {
-	switch values := args[0].(type) {
+func minAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error) {
+	if len(values) == 0 {
+		return 0.0, errors.New("min function requires at least one argument")
+	}
+	return slices.Min(values), nil
+}
+
+// Get the minimum value
+func minfunc(args interface{}) (interface{}, error) {
+	switch values := args.(type) {
 	case []float64:
-		var s float64 = 0
-		for _, x := range values {
-			s += x
-		}
-		return s / float64(len(values)), nil
+		return minAnyType(values)
 	case []float32:
-		var s float32 = 0
-		for _, x := range values {
-			s += x
-		}
-		return s / float32(len(values)), nil
+		return minAnyType(values)
 	case []int:
-		var s int = 0
-		for _, x := range values {
-			s += x
-		}
-		return s / len(values), nil
+		return minAnyType(values)
 	case []int64:
-		var s int64 = 0
-		for _, x := range values {
-			s += x
+		return minAnyType(values)
+	case []int32:
+		return minAnyType(values)
+	default:
+		return 0.0, errors.New("function 'min' only on list of values (float64, float32, int, int32, int64)")
 	}
-		return s / int64(len(values)), nil
+}
+
+func avgAnyType[T float64 | float32 | int | int32 | int64](values []T) (float64, error) {
+	if len(values) == 0 {
+		return 0.0, errors.New("average function requires at least one argument")
 	}
-	return 0.0, nil
+	sum, err := sumAnyType[T](values)
+	return float64(sum) / float64(len(values)), err
+}
+
+// Get the average or mean value
+func avgfunc(args interface{}) (interface{}, error) {
+	switch values := args.(type) {
+	case []float64:
+		return avgAnyType(values)
+	case []float32:
+		return avgAnyType(values)
+	case []int:
+		return avgAnyType(values)
+	case []int64:
+		return avgAnyType(values)
+	case []int32:
+		return avgAnyType(values)
+	default:
+		return 0.0, errors.New("function 'average' only on list of values (float64, float32, int, int32, int64)")
+	}
+}
+
+func maxAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error) {
+	if len(values) == 0 {
+		return 0.0, errors.New("max function requires at least one argument")
+	}
+	return slices.Max(values), nil
 }
 
 // Get the maximum value
-func maxfunc(args ...interface{}) (interface{}, error) {
-	s := 0.0
-	values, ok := args[0].([]float64)
-	if ok {
-		for _, x := range values {
-			if x > s {
-				s = x
+func maxfunc(args interface{}) (interface{}, error) {
+	switch values := args.(type) {
+	case []float64:
+		return maxAnyType(values)
+	case []float32:
+		return maxAnyType(values)
+	case []int:
+		return maxAnyType(values)
+	case []int64:
+		return maxAnyType(values)
+	case []int32:
+		return maxAnyType(values)
+	default:
+		return 0.0, errors.New("function 'max' only on list of values (float64, float32, int, int32, int64)")
 	}
+}
+
+func medianAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error) {
+	if len(values) == 0 {
+		return 0.0, errors.New("median function requires at least one argument")
 	}
+	slices.Sort(values)
+	var median T
+	if midPoint := len(values) % 2; midPoint == 0 {
+		median = (values[midPoint-1] + values[midPoint]) / 2
+	} else {
+		median = values[midPoint]
 	}
-	return s, nil
+	return median, nil
 }
 
 // Get the median value
-func medianfunc(args ...interface{}) (interface{}, error) {
-	switch values := args[0].(type) {
+func medianfunc(args interface{}) (interface{}, error) {
+	switch values := args.(type) {
 	case []float64:
-		sort.Float64s(values)
-		return values[len(values)/2], nil
-	// case []float32:
-	// 	sort.Float64s(values)
-	// 	return values[len(values)/2], nil
+		return medianAnyType(values)
+	case []float32:
+		return medianAnyType(values)
 	case []int:
-		sort.Ints(values)
-		return values[len(values)/2], nil
-
-		// case []int64:
-		// 	sort.Ints(values)
-		// 	return values[len(values)/2], nil
-		// case []int32:
-		// 	sort.Ints(values)
-		// 	return values[len(values)/2], nil
+		return medianAnyType(values)
+	case []int64:
+		return medianAnyType(values)
+	case []int32:
+		return medianAnyType(values)
+	default:
+		return 0.0, errors.New("function 'median' only on list of values (float64, float32, int, int32, int64)")
 	}
-	return 0.0, errors.New("function 'median()' only on lists of type float64 and int")
 }
 
 /*
  * Get number of values in list. Returns always an int
  */
 
-func lenfunc(args ...interface{}) (interface{}, error) {
+func lenfunc(args interface{}) (interface{}, error) {
 	var err error = nil
 	var length int = 0
-	switch values := args[0].(type) {
+	switch values := args.(type) {
 	case []float64:
 		length = len(values)
 	case []float32:
@@ -243,49 +248,49 @@ func matchfunc(args ...interface{}) (interface{}, error) {
  */
 
 // for a given cpuid, it returns the core id
-func getCpuCoreFunc(args ...interface{}) (interface{}, error) {
-	switch cpuid := args[0].(type) {
+func getCpuCoreFunc(args interface{}) (interface{}, error) {
+	switch cpuid := args.(type) {
 	case int:
-		return topo.GetCpuCore(cpuid), nil
+		return topo.GetHwthreadCore(cpuid), nil
 	}
 	return -1, errors.New("function 'getCpuCore' accepts only an 'int' cpuid")
 }
 
 // for a given cpuid, it returns the socket id
-func getCpuSocketFunc(args ...interface{}) (interface{}, error) {
-	switch cpuid := args[0].(type) {
+func getCpuSocketFunc(args interface{}) (interface{}, error) {
+	switch cpuid := args.(type) {
 	case int:
-		return topo.GetCpuSocket(cpuid), nil
+		return topo.GetHwthreadSocket(cpuid), nil
 	}
 	return -1, errors.New("function 'getCpuCore' accepts only an 'int' cpuid")
 }
 
 // for a given cpuid, it returns the id of the NUMA node
-func getCpuNumaDomainFunc(args ...interface{}) (interface{}, error) {
-	switch cpuid := args[0].(type) {
+func getCpuNumaDomainFunc(args interface{}) (interface{}, error) {
+	switch cpuid := args.(type) {
 	case int:
-		return topo.GetCpuNumaDomain(cpuid), nil
+		return topo.GetHwthreadNumaDomain(cpuid), nil
 	}
 	return -1, errors.New("function 'getCpuNuma' accepts only an 'int' cpuid")
 }
 
 // for a given cpuid, it returns the id of the CPU die
-func getCpuDieFunc(args ...interface{}) (interface{}, error) {
-	switch cpuid := args[0].(type) {
+func getCpuDieFunc(args interface{}) (interface{}, error) {
+	switch cpuid := args.(type) {
 	case int:
-		return topo.GetCpuDie(cpuid), nil
+		return topo.GetHwthreadDie(cpuid), nil
 	}
 	return -1, errors.New("function 'getCpuDie' accepts only an 'int' cpuid")
 }
 
 // for a given core id, it returns the list of cpuids
-func getCpuListOfCoreFunc(args ...interface{}) (interface{}, error) {
+func getCpuListOfCoreFunc(args interface{}) (interface{}, error) {
 	cpulist := make([]int, 0)
-	switch in := args[0].(type) {
+	switch in := args.(type) {
 	case int:
 		for _, c := range topo.CpuData() {
 			if c.Core == in {
-				cpulist = append(cpulist, c.Cpuid)
+				cpulist = append(cpulist, c.CpuID)
 			}
 		}
 	}
@@ -293,13 +298,13 @@ func getCpuListOfCoreFunc(args ...interface{}) (interface{}, error) {
 }
 
 // for a given socket id, it returns the list of cpuids
-func getCpuListOfSocketFunc(args ...interface{}) (interface{}, error) {
+func getCpuListOfSocketFunc(args interface{}) (interface{}, error) {
 	cpulist := make([]int, 0)
-	switch in := args[0].(type) {
+	switch in := args.(type) {
 	case int:
 		for _, c := range topo.CpuData() {
 			if c.Socket == in {
-				cpulist = append(cpulist, c.Cpuid)
+				cpulist = append(cpulist, c.CpuID)
 			}
 		}
 	}
@@ -307,13 +312,13 @@ func getCpuListOfSocketFunc(args ...interface{}) (interface{}, error) {
 }
 
 // for a given id of a NUMA domain, it returns the list of cpuids
-func getCpuListOfNumaDomainFunc(args ...interface{}) (interface{}, error) {
+func getCpuListOfNumaDomainFunc(args interface{}) (interface{}, error) {
 	cpulist := make([]int, 0)
-	switch in := args[0].(type) {
+	switch in := args.(type) {
 	case int:
 		for _, c := range topo.CpuData() {
-			if c.Numadomain == in {
-				cpulist = append(cpulist, c.Cpuid)
+			if c.NumaDomain == in {
+				cpulist = append(cpulist, c.CpuID)
 			}
 		}
 	}
@@ -321,13 +326,13 @@ func getCpuListOfNumaDomainFunc(args ...interface{}) (interface{}, error) {
 }
 
 // for a given CPU die id, it returns the list of cpuids
-func getCpuListOfDieFunc(args ...interface{}) (interface{}, error) {
+func getCpuListOfDieFunc(args interface{}) (interface{}, error) {
 	cpulist := make([]int, 0)
-	switch in := args[0].(type) {
+	switch in := args.(type) {
 	case int:
 		for _, c := range topo.CpuData() {
 			if c.Die == in {
-				cpulist = append(cpulist, c.Cpuid)
+				cpulist = append(cpulist, c.CpuID)
 			}
 		}
 	}
@@ -335,8 +340,8 @@ func getCpuListOfDieFunc(args ...interface{}) (interface{}, error) {
 }
 
 // wrapper function to get a list of all cpuids of the node
-func getCpuListOfNode(args ...interface{}) (interface{}, error) {
-	return topo.CpuList(), nil
+func getCpuListOfNode() (interface{}, error) {
+	return topo.HwthreadList(), nil
 }
 
 // helper function to get the cpuid list for a CCMetric type tag set (type and type-id)
@@ -348,14 +353,14 @@ func getCpuListOfType(args ...interface{}) (interface{}, error) {
 	case string:
 		switch typ {
 		case "node":
-			return topo.CpuList(), nil
+			return topo.HwthreadList(), nil
 		case "socket":
 			return getCpuListOfSocketFunc(args[1])
 		case "numadomain":
 			return getCpuListOfNumaDomainFunc(args[1])
 		case "core":
 			return getCpuListOfCoreFunc(args[1])
-		case "cpu":
+		case "hwthread":
 			var cpu int
 
 			switch id := args[1].(type) {

internal/metricRouter/README.md

@@ -1,11 +1,21 @@
 # CC Metric Router
 
-The CCMetric router sits in between the collectors and the sinks and can be used to add and remove tags to/from traversing [CCMetrics](../ccMetric/README.md).
+The CCMetric router sits in between the collectors and the sinks and can be used to add and remove tags to/from traversing [CCMessages](https://pkg.go.dev/github.com/ClusterCockpit/cc-energy-manager@v0.0.0-20240919152819-92a17f2da4f7/pkg/cc-message.
+
 
 # Configuration
 
+**Note**: Use the [message processor configuration](../../pkg/messageProcessor/README.md) with option `process_messages`.
+
 ```json
 {
+    "num_cache_intervals" : 1,
+    "interval_timestamp" : true,
+    "hostname_tag" : "hostname",
+    "max_forward" : 50,
+    "process_messages": {
+      "see": "pkg/messageProcessor/README.md"
+    },
     "add_tags" : [
         {
             "key" : "cluster",
@@ -25,16 +35,91 @@ The CCMetric router sits in between the collectors and the sinks and can be used
             "if" : "*"
         }
     ],
-    "interval_timestamp" : true
+    "interval_aggregates" : [
+        {
+            "name" : "temp_cores_avg",
+            "if" : "match('temp_core_%d+', metric.Name())",
+            "function" : "avg(values)",
+            "tags" : {
+                "type" : "node"
+            },
+            "meta" : {
+                "group": "IPMI",
+                "unit": "degC",
+                "source": "TempCollector"
+            }
+        }
+    ],
+    "drop_metrics" : [
+        "not_interesting_metric_at_all"
+    ],
+    "drop_metrics_if" : [
+        "match('temp_core_%d+', metric.Name())"
+    ],
+    "rename_metrics" : {
+        "metric_12345" : "mymetric"
+    },
+    "normalize_units" : true,
+    "change_unit_prefix" : {
+      "mem_used" : "G",
+      "mem_total" : "G"
+    }
 }
 ```
 
 There are three main options `add_tags`, `delete_tags` and `interval_timestamp`. `add_tags` and `delete_tags` are lists consisting of dicts with `key`, `value` and `if`. The `value` can be omitted in the `delete_tags` part as it only uses the `key` for removal. The `interval_timestamp` setting means that a unique timestamp is applied to all metrics traversing the router during an interval.
 
-# Conditional manipulation of tags
+**Note**: Use the [message processor configuration](../../pkg/messageProcessor/README.md) (option `process_messages`) instead of `add_tags`, `delete_tags`, `drop_metrics`, `drop_metrics_if`, `rename_metrics`, `normalize_units` and `change_unit_prefix`. These options are deprecated and will be removed in future versions. Until then, they are added to the message processor.
 
-The `if` setting allows conditional testing of a single metric like in the example:
+# Processing order in the router
 
+- Add the `hostname_tag` tag (if sent by collectors or cache)
+- If `interval_timestamp == true`, change time of metrics
+- Check if metric should be dropped (`drop_metrics` and `drop_metrics_if`)
+- Add tags from `add_tags`
+- Delete tags from `del_tags`
+- Rename metric based on `rename_metrics` and store old name as `oldname` in meta information
+- Add tags from `add_tags` (if you used the new name in the `if` condition)
+- Delete tags from `del_tags` (if you used the new name in the `if` condition)
+- Send to sinks
+- Move to cache (if `num_cache_intervals > 0`)
+
+# The `interval_timestamp` option
+
+The collectors' `Read()` functions are not called simultaneously and therefore the metrics gathered in an interval can have different timestamps. If you want to avoid that and have a common timestamp (the beginning of the interval), set this option to `true` and the MetricRouter sets the time.
+
+# The `num_cache_intervals` option
+
+If the MetricRouter should buffer metrics of intervals in a MetricCache, this option specifies the number of past intervals that should be kept. If `num_cache_intervals = 0`, the cache is disabled. With `num_cache_intervals = 1`, only the metrics of the last interval are buffered.
+
+A `num_cache_intervals > 0` is required to use the `interval_aggregates` option.
+
+# The `hostname_tag` option
+
+By default, the router tags metrics with the hostname for all locally created metrics. The default tag name is `hostname`, but it can be changed if your organization wants anything else
+
+# The `max_forward` option
+
+Every time the router receives a metric through any of the channels, it tries to directly read up to `max_forward` metrics from the same channel. This was done as the router thread would go to sleep and wake up with every arriving metric. The default are `50` metrics at once and `max_forward` needs to greater than `1`.
+
+# The `rename_metrics` option
+
+__deprecated__
+
+In the ClusterCockpit world we specified a set of standard metrics. Since some collectors determine the metric names based on files, execuables and libraries, they might change from system to system (or installation to installtion, OS to OS, ...). In order to get the common names, you can rename incoming metrics before sending them to the sink. If the metric name matches the `oldname`, it is changed to `newname`
+
+```json
+{
+  "oldname" : "newname",
+  "clock_mhz" : "clock"
+}
+```
+
+# Conditional manipulation of tags (`add_tags` and `del_tags`)
+
+__deprecated__
+
+Common config format:
 ```json
 {
     "key" : "test",
@@ -43,8 +128,173 @@ The `if` setting allows conditional testing of a single metric like in the examp
 }
 ```
 
-If the CCMetric name is equal to 'temp_package_id_0', it adds an additional tag `test=testing` to the metric.
+## The `del_tags` option
 
-In order to match all metrics, you can use `*`, so in order to add a flag per default, like the `cluster=testcluster` tag in the example.
+__deprecated__
+
+The collectors are free to add whatever `key=value` pair to the metric tags (although the usage of tags should be minimized). If you want to delete a tag afterwards, you can do that. When the `if` condition matches on a metric, the `key` is removed from the metric's tags.
+
+If you want to remove a tag for all metrics, use the condition wildcard `*`. The `value` field can be omitted in the `del_tags` case.
+
+Never delete tags:
+- `hostname`
+- `type`
+- `type-id`
+
+## The `add_tags` option
+
+__deprecated__
+
+In some cases, metrics should be tagged or an existing tag changed based on some condition. This can be done in the `add_tags` section. When the `if` condition evaluates to `true`, the tag `key` is added or gets changed to the new `value`.
+
+If the CCMetric name is equal to `temp_package_id_0`, it adds an additional tag `test=testing` to the metric.
+
+For this metric, a more useful example would be:
+
+```json
+[
+  {
+    "key" : "type",
+    "value" : "socket",
+    "if" : "name == 'temp_package_id_0'"
+  },
+  {
+    "key" : "type-id",
+    "value" : "0",
+    "if" : "name == 'temp_package_id_0'"
+  },
+]
+```
+
+The metric `temp_package_id_0` corresponds to the tempature of the first CPU socket (=package). With the above configuration, the tags would reflect that because commonly the [TempCollector](../../collectors/tempMetric.md) submits only `node` metrics.
+
+In order to match all metrics, you can use `*`, so in order to add a flag per default. This is useful to attached system-specific tags like `cluster=testcluster`:
+
+```json
+{
+    "key" : "cluster",
+    "value" : "testcluster",
+    "if" : "*"
+}
+```
+
+# Dropping metrics
+
+In some cases, you want to drop a metric and don't get it forwarded to the sinks. There are two options based on the required specification:
+- Based only on the metric name -> `drop_metrics` section
+- An evaluable condition with more overhead -> `drop_metrics_if` section
+
+## The `drop_metrics` section
+
+__deprecated__
+
+The argument is a list of metric names. No futher checks are performed, only a comparison of the metric name
+
+```json
+{
+  "drop_metrics" : [
+      "drop_metric_1",
+      "drop_metric_2"
+  ]
+}
+```
+
+The example drops all metrics with the name `drop_metric_1` and `drop_metric_2`.
+
+## The `drop_metrics_if` section
+
+__deprecated__
+
+This option takes a list of evaluable conditions and performs them one after the other on **all** metrics incoming from the collectors and the metric cache (aka `interval_aggregates`).
+
+```json
+{
+  "drop_metrics_if" : [
+      "match('drop_metric_%d+', name)",
+      "match('cpu', type) && type-id == 0"
+  ]
+}
+```
+The first line is comparable with the example in `drop_metrics`, it drops all metrics starting with `drop_metric_` and ending with a number. The second line drops all metrics of the first hardware thread (**not** recommended)
+
+# Manipulating the metric units
+
+## The `normalize_units` option
+
+__deprecated__
 
 
+The cc-metric-collector tries to read the data from the system as it is reported. If available, it tries to read the metric unit from the system as well (e.g. from `/proc/meminfo`). The problem is that, depending on the source, the metric units are named differently. Just think about `byte`, `Byte`, `B`, `bytes`, ...
+The [cc-units](https://github.com/ClusterCockpit/cc-units) package provides us a normalization option to use the same metric unit name for all metrics. It this option is set to true, all `unit` meta tags are normalized.
+
+## The `change_unit_prefix` section
+
+__deprecated__
+
+It is often the case that metrics are reported by the system using a rather outdated unit prefix (like `/proc/meminfo` still uses kByte despite current memory sizes are in the GByte range). If you want to change the prefix of a unit, you can do that with the help of [cc-units](https://github.com/ClusterCockpit/cc-units). The setting works on the metric name and requires the new prefix for the metric. The cc-units package determines the scaling factor.
+
+# Aggregate metric values of the current interval with the `interval_aggregates` option
+
+**Note:** `interval_aggregates` works only if `num_cache_intervals` > 0 and is **experimental**
+
+In some cases, you need to derive new metrics based on the metrics arriving during an interval. This can be done in the `interval_aggregates` section. The logic is similar to the other metric manipulation and filtering options. A cache stores all metrics that arrive during an interval. At the beginning of the *next* interval, the list of metrics is submitted to the MetricAggregator. It derives new metrics and submits them back to the MetricRouter, so they are sent in the next interval but have the timestamp of the previous interval beginning.
+
+```json
+"interval_aggregates" : [
+  {
+    "name" : "new_metric_name",
+    "if" : "match('sub_metric_%d+', metric.Name())",
+    "function" : "avg(values)",
+    "tags" : {
+      "key" : "value",
+      "type" : "node"
+    },
+    "meta" : {
+      "key" : "value",
+      "group": "IPMI",
+      "unit": "<copy>",
+    }
+  }
+]
+```
+
+The above configuration, collects all metric values for metrics evaluating `if` to `true`. Afterwards it calculates the average `avg` of the `values` (list of all metrics' field `value`) and creates a new CCMetric with the name `new_metric_name` and adds the tags in `tags` and the meta information in `meta`. The special value `<copy>` searches the input metrics and copies the value of the first match of `key` to the new CCMetric.
+
+If you are not interested in the input metrics `sub_metric_%d+` at all, you can add the same condition used here to the `drop_metrics_if` section to drop them.
+
+Use cases for `interval_aggregates`:
+- Combine multiple metrics of the a collector to a new one like the [MemstatCollector](../../collectors/memstatMetric.md) does it for `mem_used`)):
+```json
+  {
+    "name" : "mem_used",
+    "if" : "source == 'MemstatCollector'",
+    "function" : "sum(mem_total) - (sum(mem_free) + sum(mem_buffers) + sum(mem_cached))",
+    "tags" : {
+      "type" : "node"
+    },
+    "meta" : {
+      "group": "<copy>",
+      "unit": "<copy>",
+      "source": "<copy>"
+    }
+  }
+```
+
+# Order of operations
+
+The router performs the above mentioned options in a specific order. In order to get the logic you want for a specific metric, it is crucial to know the processing order:
+
+- Add the `hostname` tag (c)
+- Manipulate the timestamp to the interval timestamp (c,r)
+- Drop metrics based on `drop_metrics` and `drop_metrics_if` (c,r)
+- Add tags based on `add_tags` (c,r)
+- Delete tags based on `del_tags` (c,r)
+- Rename metric based on `rename_metric` (c,r)
+  - Add tags based on `add_tags` to still work if the configuration uses the new name (c,r) 
+  - Delete tags based on `del_tags` to still work if the configuration uses the new name (c,r)
+- Normalize units when `normalize_units` is set (c,r)
+- Convert unit prefix based on `change_unit_prefix` (c,r)
+
+Legend:
+- 'c' if metric is coming from a collector
+- 'r' if metric is coming from a receiver

internal/metricRouter/metricCache.go

@@ -4,10 +4,11 @@ import (
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-metric-collector/internal/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
-	mct "github.com/ClusterCockpit/cc-metric-collector/internal/multiChanTicker"
+	agg "github.com/ClusterCockpit/cc-metric-collector/internal/metricAggregator"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	mct "github.com/ClusterCockpit/cc-metric-collector/pkg/multiChanTicker"
 )
 
 type metricCachePeriod struct {
@@ -15,33 +16,34 @@ type metricCachePeriod struct {
 	stopstamp   time.Time
 	numMetrics  int
 	sizeMetrics int
-	metrics     []lp.CCMetric
+	metrics     []lp.CCMessage
 }
 
 // Metric cache data structure
 type metricCache struct {
 	numPeriods int
 	curPeriod  int
+	lock       sync.Mutex
 	intervals  []*metricCachePeriod
 	wg         *sync.WaitGroup
 	ticker     mct.MultiChanTicker
 	tickchan   chan time.Time
 	done       chan bool
-	output     chan lp.CCMetric
-	aggEngine  MetricAggregator
+	output     chan lp.CCMessage
+	aggEngine  agg.MetricAggregator
 }
 
 type MetricCache interface {
-	Init(output chan lp.CCMetric, ticker mct.MultiChanTicker, wg *sync.WaitGroup, numPeriods int) error
+	Init(output chan lp.CCMessage, ticker mct.MultiChanTicker, wg *sync.WaitGroup, numPeriods int) error
 	Start()
-	Add(metric lp.CCMetric)
-	GetPeriod(index int) (time.Time, time.Time, []lp.CCMetric)
+	Add(metric lp.CCMessage)
+	GetPeriod(index int) (time.Time, time.Time, []lp.CCMessage)
 	AddAggregation(name, function, condition string, tags, meta map[string]string) error
 	DeleteAggregation(name string) error
 	Close()
 }
 
-func (c *metricCache) Init(output chan lp.CCMetric, ticker mct.MultiChanTicker, wg *sync.WaitGroup, numPeriods int) error {
+func (c *metricCache) Init(output chan lp.CCMessage, ticker mct.MultiChanTicker, wg *sync.WaitGroup, numPeriods int) error {
 	var err error = nil
 	c.done = make(chan bool)
 	c.wg = wg
@@ -53,13 +55,13 @@ func (c *metricCache) Init(output chan lp.CCMetric, ticker mct.MultiChanTicker,
 		p := new(metricCachePeriod)
 		p.numMetrics = 0
 		p.sizeMetrics = 0
-		p.metrics = make([]lp.CCMetric, 0)
+		p.metrics = make([]lp.CCMessage, 0)
 		c.intervals = append(c.intervals, p)
 	}
 
 	// Create a new aggregation engine. No separate goroutine at the moment
 	// The code is executed by the MetricCache goroutine
-	c.aggEngine, err = NewAggregator(c.output)
+	c.aggEngine, err = agg.NewAggregator(c.output)
 	if err != nil {
 		cclog.ComponentError("MetricCache", "Cannot create aggregator")
 		return err
@@ -102,9 +104,11 @@ func (c *metricCache) Start() {
 				done()
 				return
 			case tick := <-c.tickchan:
+				c.lock.Lock()
 				old := rotate(tick)
 				// Get the last period and evaluate aggregation metrics
 				starttime, endtime, metrics := c.GetPeriod(old)
+				c.lock.Unlock()
 				if len(metrics) > 0 {
 					c.aggEngine.Eval(starttime, endtime, metrics)
 				} else {
@@ -120,8 +124,9 @@ func (c *metricCache) Start() {
 // Add a metric to the cache. The interval is defined by the global timer (rotate() in Start())
 // The intervals list is used as round-robin buffer and the metric list grows dynamically and
 // to avoid reallocations
-func (c *metricCache) Add(metric lp.CCMetric) {
+func (c *metricCache) Add(metric lp.CCMessage) {
 	if c.curPeriod >= 0 && c.curPeriod < c.numPeriods {
+		c.lock.Lock()
 		p := c.intervals[c.curPeriod]
 		if p.numMetrics < p.sizeMetrics {
 			p.metrics[p.numMetrics] = metric
@@ -133,6 +138,7 @@ func (c *metricCache) Add(metric lp.CCMetric) {
 			p.sizeMetrics = p.sizeMetrics + 1
 			p.stopstamp = metric.Time()
 		}
+		c.lock.Unlock()
 	}
 }
 
@@ -147,17 +153,27 @@ func (c *metricCache) DeleteAggregation(name string) error {
 // Get all metrics of a interval. The index is the difference to the current interval, so index=0
 // is the current one, index=1 the last interval and so on. Returns and empty array if a wrong index
 // is given (negative index, index larger than configured number of total intervals, ...)
-func (c *metricCache) GetPeriod(index int) (time.Time, time.Time, []lp.CCMetric) {
+func (c *metricCache) GetPeriod(index int) (time.Time, time.Time, []lp.CCMessage) {
+	var start time.Time = time.Now()
+	var stop time.Time = time.Now()
+	var metrics []lp.CCMessage
 	if index >= 0 && index < c.numPeriods {
 		pindex := c.curPeriod - index
 		if pindex < 0 {
 			pindex = c.numPeriods - pindex
 		}
 		if pindex >= 0 && pindex < c.numPeriods {
-			return c.intervals[pindex].startstamp, c.intervals[pindex].stopstamp, c.intervals[pindex].metrics
+			start = c.intervals[pindex].startstamp
+			stop = c.intervals[pindex].stopstamp
+			metrics = c.intervals[pindex].metrics
+			//return c.intervals[pindex].startstamp, c.intervals[pindex].stopstamp, c.intervals[pindex].metrics
+		} else {
+			metrics = make([]lp.CCMessage, 0)
 		}
+	} else {
+		metrics = make([]lp.CCMessage, 0)
 	}
-	return time.Now(), time.Now(), make([]lp.CCMetric, 0)
+	return start, stop, metrics
 }
 
 // Close finishes / stops the metric cache
@@ -166,7 +182,7 @@ func (c *metricCache) Close() {
 	c.done <- true
 }
 
-func NewCache(output chan lp.CCMetric, ticker mct.MultiChanTicker, wg *sync.WaitGroup, numPeriods int) (MetricCache, error) {
+func NewCache(output chan lp.CCMessage, ticker mct.MultiChanTicker, wg *sync.WaitGroup, numPeriods int) (MetricCache, error) {
 	c := new(metricCache)
 	err := c.Init(output, ticker, wg, numPeriods)
 	if err != nil {

internal/metricRouter/metricRouter.go

@@ -2,18 +2,22 @@ package metricRouter
 
 import (
 	"encoding/json"
+	"fmt"
 	"os"
 	"strings"
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-metric-collector/internal/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 
-	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
-	mct "github.com/ClusterCockpit/cc-metric-collector/internal/multiChanTicker"
-	"gopkg.in/Knetic/govaluate.v2"
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	agg "github.com/ClusterCockpit/cc-metric-collector/internal/metricAggregator"
+	mp "github.com/ClusterCockpit/cc-metric-collector/pkg/messageProcessor"
+	mct "github.com/ClusterCockpit/cc-metric-collector/pkg/multiChanTicker"
 )
 
+const ROUTER_MAX_FORWARD = 50
+
 // Metric router tag configuration
 type metricRouterTagConfig struct {
 	Key       string `json:"key"`   // Tag name
@@ -23,36 +27,46 @@ type metricRouterTagConfig struct {
 
 // Metric router configuration
 type metricRouterConfig struct {
+	HostnameTagName   string                               `json:"hostname_tag"`        // Key name used when adding the hostname to a metric (default 'hostname')
 	AddTags           []metricRouterTagConfig              `json:"add_tags"`            // List of tags that are added when the condition is met
 	DelTags           []metricRouterTagConfig              `json:"delete_tags"`         // List of tags that are removed when the condition is met
-	IntervalAgg       []metricAggregatorIntervalConfig `json:"interval_aggregates"` // List of aggregation function processed at the end of an interval
+	IntervalAgg       []agg.MetricAggregatorIntervalConfig `json:"interval_aggregates"` // List of aggregation function processed at the end of an interval
+	DropMetrics       []string                             `json:"drop_metrics"`        // List of metric names to drop. For fine-grained dropping use drop_metrics_if
+	DropMetricsIf     []string                             `json:"drop_metrics_if"`     // List of evaluatable terms to drop metrics
+	RenameMetrics     map[string]string                    `json:"rename_metrics"`      // Map to rename metric name from key to value
 	IntervalStamp     bool                                 `json:"interval_timestamp"`  // Update timestamp periodically by ticker each interval?
 	NumCacheIntervals int                                  `json:"num_cache_intervals"` // Number of intervals of cached metrics for evaluation
+	MaxForward        int                                  `json:"max_forward"`         // Number of maximal forwarded metrics at one select
+	NormalizeUnits    bool                                 `json:"normalize_units"`     // Check unit meta flag and normalize it using cc-units
+	ChangeUnitPrefix  map[string]string                    `json:"change_unit_prefix"`  // Add prefix that should be applied to the metrics
+	// dropMetrics       map[string]bool                      // Internal map for O(1) lookup
+	MessageProcessor json.RawMessage `json:"process_message,omitempty"`
 }
 
 // Metric router data structure
 type metricRouter struct {
 	hostname    string              // Hostname used in tags
-	coll_input  chan lp.CCMetric    // Input channel from CollectorManager
-	recv_input  chan lp.CCMetric    // Input channel from ReceiveManager
-	cache_input chan lp.CCMetric    // Input channel from MetricCache
-	outputs     []chan lp.CCMetric  // List of all output channels
+	coll_input  chan lp.CCMessage   // Input channel from CollectorManager
+	recv_input  chan lp.CCMessage   // Input channel from ReceiveManager
+	cache_input chan lp.CCMessage   // Input channel from MetricCache
+	outputs     []chan lp.CCMessage // List of all output channels
 	done        chan bool           // channel to finish / stop metric router
 	wg          *sync.WaitGroup     // wait group for all goroutines in cc-metric-collector
 	timestamp   time.Time           // timestamp periodically updated by ticker each interval
-	timerdone   chan bool           // channel to finish / stop timestamp updater
 	ticker      mct.MultiChanTicker // periodically ticking once each interval
 	config      metricRouterConfig  // json encoded config for metric router
 	cache       MetricCache         // pointer to MetricCache
 	cachewg     sync.WaitGroup      // wait group for MetricCache
+	maxForward  int                 // number of metrics to forward maximally in one iteration
+	mp          mp.MessageProcessor
 }
 
 // MetricRouter access functions
 type MetricRouter interface {
 	Init(ticker mct.MultiChanTicker, wg *sync.WaitGroup, routerConfigFile string) error
-	AddCollectorInput(input chan lp.CCMetric)
-	AddReceiverInput(input chan lp.CCMetric)
-	AddOutput(output chan lp.CCMetric)
+	AddCollectorInput(input chan lp.CCMessage)
+	AddReceiverInput(input chan lp.CCMessage)
+	AddOutput(output chan lp.CCMessage)
 	Start()
 	Close()
 }
@@ -64,11 +78,13 @@ type MetricRouter interface {
 // * ticker (from variable ticker)
 // * configuration (read from config file in variable routerConfigFile)
 func (r *metricRouter) Init(ticker mct.MultiChanTicker, wg *sync.WaitGroup, routerConfigFile string) error {
-	r.outputs = make([]chan lp.CCMetric, 0)
+	r.outputs = make([]chan lp.CCMessage, 0)
 	r.done = make(chan bool)
-	r.cache_input = make(chan lp.CCMetric)
+	r.cache_input = make(chan lp.CCMessage)
 	r.wg = wg
 	r.ticker = ticker
+	r.config.MaxForward = ROUTER_MAX_FORWARD
+	r.config.HostnameTagName = "hostname"
 
 	// Set hostname
 	hostname, err := os.Hostname()
@@ -92,11 +108,12 @@ func (r *metricRouter) Init(ticker mct.MultiChanTicker, wg *sync.WaitGroup, rout
 		cclog.ComponentError("MetricRouter", err.Error())
 		return err
 	}
-	numIntervals := r.config.NumCacheIntervals
-	if numIntervals <= 0 {
-		numIntervals = 1
+	r.maxForward = 1
+	if r.config.MaxForward > r.maxForward {
+		r.maxForward = r.config.MaxForward
 	}
-	r.cache, err = NewCache(r.cache_input, r.ticker, &r.cachewg, numIntervals)
+	if r.config.NumCacheIntervals > 0 {
+		r.cache, err = NewCache(r.cache_input, r.ticker, &r.cachewg, r.config.NumCacheIntervals)
 		if err != nil {
 			cclog.ComponentError("MetricRouter", "MetricCache initialization failed:", err.Error())
 			return err
@@ -104,73 +121,84 @@ func (r *metricRouter) Init(ticker mct.MultiChanTicker, wg *sync.WaitGroup, rout
 		for _, agg := range r.config.IntervalAgg {
 			r.cache.AddAggregation(agg.Name, agg.Function, agg.Condition, agg.Tags, agg.Meta)
 		}
+	}
+	p, err := mp.NewMessageProcessor()
+	if err != nil {
+		return fmt.Errorf("initialization of message processor failed: %v", err.Error())
+	}
+	r.mp = p
+
+	if len(r.config.MessageProcessor) > 0 {
+		err = r.mp.FromConfigJSON(r.config.MessageProcessor)
+		if err != nil {
+			return fmt.Errorf("failed parsing JSON for message processor: %v", err.Error())
+		}
+	}
+	for _, mname := range r.config.DropMetrics {
+		r.mp.AddDropMessagesByName(mname)
+	}
+	for _, cond := range r.config.DropMetricsIf {
+		r.mp.AddDropMessagesByCondition(cond)
+	}
+	for _, data := range r.config.AddTags {
+		cond := data.Condition
+		if cond == "*" {
+			cond = "true"
+		}
+		r.mp.AddAddTagsByCondition(cond, data.Key, data.Value)
+	}
+	for _, data := range r.config.DelTags {
+		cond := data.Condition
+		if cond == "*" {
+			cond = "true"
+		}
+		r.mp.AddDeleteTagsByCondition(cond, data.Key, data.Value)
+	}
+	for oldname, newname := range r.config.RenameMetrics {
+		r.mp.AddRenameMetricByName(oldname, newname)
+	}
+	for metricName, prefix := range r.config.ChangeUnitPrefix {
+		r.mp.AddChangeUnitPrefix(fmt.Sprintf("name == '%s'", metricName), prefix)
+	}
+	r.mp.SetNormalizeUnits(r.config.NormalizeUnits)
+
+	r.mp.AddAddTagsByCondition("true", r.config.HostnameTagName, r.hostname)
+
+	// r.config.dropMetrics = make(map[string]bool)
+	// for _, mname := range r.config.DropMetrics {
+	// 	r.config.dropMetrics[mname] = true
+	// }
 	return nil
 }
 
-// StartTimer starts a timer which updates timestamp periodically
-func (r *metricRouter) StartTimer() {
-	m := make(chan time.Time)
-	r.ticker.AddChannel(m)
-	r.timerdone = make(chan bool)
-
-	r.wg.Add(1)
-	go func() {
-		defer r.wg.Done()
-		for {
-			select {
-			case <-r.timerdone:
-				close(r.timerdone)
-				cclog.ComponentDebug("MetricRouter", "TIMER DONE")
-				return
-			case t := <-m:
-				r.timestamp = t
-			}
-		}
-	}()
-	cclog.ComponentDebug("MetricRouter", "TIMER START")
-}
-
-// EvalCondition evaluates condition cond for metric data from point
-func (r *metricRouter) EvalCondition(cond string, point lp.CCMetric) (bool, error) {
-	expression, err := govaluate.NewEvaluableExpression(cond)
-	if err != nil {
-		cclog.ComponentDebug("MetricRouter", cond, " = ", err.Error())
-		return false, err
-	}
-
-	// Add metric name, tags, meta data, fields and timestamp to the parameter list
+func getParamMap(point lp.CCMessage) map[string]interface{} {
 	params := make(map[string]interface{})
+	params["metric"] = point
 	params["name"] = point.Name()
-	for _, t := range point.TagList() {
-		params[t.Key] = t.Value
+	for key, value := range point.Tags() {
+		params[key] = value
 	}
-	for _, m := range point.MetaList() {
-		params[m.Key] = m.Value
+	for key, value := range point.Meta() {
+		params[key] = value
 	}
-	for _, f := range point.FieldList() {
-		params[f.Key] = f.Value
+	for key, value := range point.Fields() {
+		params[key] = value
 	}
 	params["timestamp"] = point.Time()
-
-	// evaluate condition
-	result, err := expression.Evaluate(params)
-	if err != nil {
-		cclog.ComponentDebug("MetricRouter", cond, " = ", err.Error())
-		return false, err
-	}
-	return bool(result.(bool)), err
+	return params
 }
 
 // DoAddTags adds a tag when condition is fullfiled
-func (r *metricRouter) DoAddTags(point lp.CCMetric) {
-	for _, m := range r.config.AddTags {
+func (r *metricRouter) DoAddTags(point lp.CCMessage) {
 	var conditionMatches bool
-
+	for _, m := range r.config.AddTags {
 		if m.Condition == "*" {
+			// Condition is always matched
 			conditionMatches = true
 		} else {
+			// Evaluate condition
 			var err error
-			conditionMatches, err = r.EvalCondition(m.Condition, point)
+			conditionMatches, err = agg.EvalBoolCondition(m.Condition, getParamMap(point))
 			if err != nil {
 				cclog.ComponentError("MetricRouter", err.Error())
 				conditionMatches = false
@@ -183,33 +211,89 @@ func (r *metricRouter) DoAddTags(point lp.CCMetric) {
 }
 
 // DoDelTags removes a tag when condition is fullfiled
-func (r *metricRouter) DoDelTags(point lp.CCMetric) {
-	for _, m := range r.config.DelTags {
-		var conditionMatches bool
+// func (r *metricRouter) DoDelTags(point lp.CCMessage) {
+// 	var conditionMatches bool
+// 	for _, m := range r.config.DelTags {
+// 		if m.Condition == "*" {
+// 			// Condition is always matched
+// 			conditionMatches = true
+// 		} else {
+// 			// Evaluate condition
+// 			var err error
+// 			conditionMatches, err = agg.EvalBoolCondition(m.Condition, getParamMap(point))
+// 			if err != nil {
+// 				cclog.ComponentError("MetricRouter", err.Error())
+// 				conditionMatches = false
+// 			}
+// 		}
+// 		if conditionMatches {
+// 			point.RemoveTag(m.Key)
+// 		}
+// 	}
+// }
 
-		if m.Condition == "*" {
-			conditionMatches = true
-		} else {
-			var err error
-			conditionMatches, err = r.EvalCondition(m.Condition, point)
-			if err != nil {
-				cclog.ComponentError("MetricRouter", err.Error())
-				conditionMatches = false
-			}
-		}
-		if conditionMatches {
-			point.RemoveTag(m.Key)
-		}
-	}
-}
+// Conditional test whether a metric should be dropped
+// func (r *metricRouter) dropMetric(point lp.CCMessage) bool {
+// 	// Simple drop check
+// 	if conditionMatches, ok := r.config.dropMetrics[point.Name()]; ok {
+// 		return conditionMatches
+// 	}
+
+// 	// Checking the dropping conditions
+// 	for _, m := range r.config.DropMetricsIf {
+// 		conditionMatches, err := agg.EvalBoolCondition(m, getParamMap(point))
+// 		if err != nil {
+// 			cclog.ComponentError("MetricRouter", err.Error())
+// 			conditionMatches = false
+// 		}
+// 		if conditionMatches {
+// 			return conditionMatches
+// 		}
+// 	}
+
+// 	// No dropping condition met
+// 	return false
+// }
+
+// func (r *metricRouter) prepareUnit(point lp.CCMessage) bool {
+// 	if r.config.NormalizeUnits {
+// 		if in_unit, ok := point.GetMeta("unit"); ok {
+// 			u := units.NewUnit(in_unit)
+// 			if u.Valid() {
+// 				point.AddMeta("unit", u.Short())
+// 			}
+// 		}
+// 	}
+// 	if newP, ok := r.config.ChangeUnitPrefix[point.Name()]; ok {
+
+// 		newPrefix := units.NewPrefix(newP)
+
+// 		if in_unit, ok := point.GetMeta("unit"); ok && newPrefix != units.InvalidPrefix {
+// 			u := units.NewUnit(in_unit)
+// 			if u.Valid() {
+// 				cclog.ComponentDebug("MetricRouter", "Change prefix to", newP, "for metric", point.Name())
+// 				conv, out_unit := units.GetUnitPrefixFactor(u, newPrefix)
+// 				if conv != nil && out_unit.Valid() {
+// 					if val, ok := point.GetField("value"); ok {
+// 						point.AddField("value", conv(val))
+// 						point.AddMeta("unit", out_unit.Short())
+// 					}
+// 				}
+// 			}
+
+// 		}
+// 	}
+
+// 	return true
+// }
 
 // Start starts the metric router
 func (r *metricRouter) Start() {
-
 	// start timer if configured
 	r.timestamp = time.Now()
+	timeChan := make(chan time.Time)
 	if r.config.IntervalStamp {
-		r.StartTimer()
+		r.ticker.AddChannel(timeChan)
 	}
 
 	// Router manager is done
@@ -220,47 +304,114 @@ func (r *metricRouter) Start() {
 
 	// Forward takes a received metric, adds or deletes tags
 	// and forwards it to the output channels
-	forward := func(point lp.CCMetric) {
-		cclog.ComponentDebug("MetricRouter", "FORWARD", point)
-		r.DoAddTags(point)
-		r.DoDelTags(point)
+	// forward := func(point lp.CCMessage) {
+	// 	cclog.ComponentDebug("MetricRouter", "FORWARD", point)
+	// 	r.DoAddTags(point)
+	// 	r.DoDelTags(point)
+	// 	name := point.Name()
+	// 	if new, ok := r.config.RenameMetrics[name]; ok {
+	// 		point.SetName(new)
+	// 		point.AddMeta("oldname", name)
+	// 		r.DoAddTags(point)
+	// 		r.DoDelTags(point)
+	// 	}
+
+	// 	r.prepareUnit(point)
+
+	// 	for _, o := range r.outputs {
+	// 		o <- point
+	// 	}
+	// }
+
+	// Foward message received from collector channel
+	coll_forward := func(p lp.CCMessage) {
+		// receive from metric collector
+		//p.AddTag(r.config.HostnameTagName, r.hostname)
+		if r.config.IntervalStamp {
+			p.SetTime(r.timestamp)
+		}
+		m, err := r.mp.ProcessMessage(p)
+		if err == nil && m != nil {
 			for _, o := range r.outputs {
-			o <- point
+				o <- m
+			}
+		}
+		// if !r.dropMetric(p) {
+		// 	for _, o := range r.outputs {
+		// 		o <- point
+		// 	}
+		// }
+		// even if the metric is dropped, it is stored in the cache for
+		// aggregations
+		if r.config.NumCacheIntervals > 0 {
+			r.cache.Add(m)
+		}
+	}
+
+	// Forward message received from receivers channel
+	recv_forward := func(p lp.CCMessage) {
+		// receive from receive manager
+		if r.config.IntervalStamp {
+			p.SetTime(r.timestamp)
+		}
+		m, err := r.mp.ProcessMessage(p)
+		if err == nil && m != nil {
+			for _, o := range r.outputs {
+				o <- m
+			}
+		}
+		// if !r.dropMetric(p) {
+		// 	forward(p)
+		// }
+	}
+
+	// Forward message received from cache channel
+	cache_forward := func(p lp.CCMessage) {
+		// receive from metric collector
+		m, err := r.mp.ProcessMessage(p)
+		if err == nil && m != nil {
+			for _, o := range r.outputs {
+				o <- m
+			}
 		}
 	}
 
 	// Start Metric Cache
+	if r.config.NumCacheIntervals > 0 {
 		r.cache.Start()
+	}
 
 	r.wg.Add(1)
 	go func() {
 		defer r.wg.Done()
+
 		for {
 			select {
 			case <-r.done:
 				done()
 				return
 
+			case timestamp := <-timeChan:
+				r.timestamp = timestamp
+				cclog.ComponentDebug("MetricRouter", "Update timestamp", r.timestamp.UnixNano())
+
 			case p := <-r.coll_input:
-				// receive from metric collector
-				p.AddTag("hostname", r.hostname)
-				if r.config.IntervalStamp {
-					p.SetTime(r.timestamp)
+				coll_forward(p)
+				for i := 0; len(r.coll_input) > 0 && i < (r.maxForward-1); i++ {
+					coll_forward(<-r.coll_input)
 				}
-				forward(p)
-				r.cache.Add(p)
 
 			case p := <-r.recv_input:
-				// receive from receive manager
-				if r.config.IntervalStamp {
-					p.SetTime(r.timestamp)
+				recv_forward(p)
+				for i := 0; len(r.recv_input) > 0 && i < (r.maxForward-1); i++ {
+					recv_forward(<-r.recv_input)
 				}
-				forward(p)
 
 			case p := <-r.cache_input:
-				// receive from metric collector
-				p.AddTag("hostname", r.hostname)
-				forward(p)
+				cache_forward(p)
+				for i := 0; len(r.cache_input) > 0 && i < (r.maxForward-1); i++ {
+					cache_forward(<-r.cache_input)
+				}
 			}
 		}
 	}()
@@ -268,17 +419,17 @@ func (r *metricRouter) Start() {
 }
 
 // AddCollectorInput adds a channel between metric collector and metric router
-func (r *metricRouter) AddCollectorInput(input chan lp.CCMetric) {
+func (r *metricRouter) AddCollectorInput(input chan lp.CCMessage) {
 	r.coll_input = input
 }
 
 // AddReceiverInput adds a channel between metric receiver and metric router
-func (r *metricRouter) AddReceiverInput(input chan lp.CCMetric) {
+func (r *metricRouter) AddReceiverInput(input chan lp.CCMessage) {
 	r.recv_input = input
 }
 
 // AddOutput adds a output channel to the metric router
-func (r *metricRouter) AddOutput(output chan lp.CCMetric) {
+func (r *metricRouter) AddOutput(output chan lp.CCMessage) {
 	r.outputs = append(r.outputs, output)
 }
 
@@ -288,14 +439,13 @@ func (r *metricRouter) Close() {
 	r.done <- true
 	// wait for close of channel r.done
 	<-r.done
-	if r.config.IntervalStamp {
-		cclog.ComponentDebug("MetricRouter", "TIMER CLOSE")
-		r.timerdone <- true
-		// wait for close of channel r.timerdone
-		<-r.timerdone
-	}
+
+	// stop metric cache
+	if r.config.NumCacheIntervals > 0 {
+		cclog.ComponentDebug("MetricRouter", "CACHE CLOSE")
 		r.cache.Close()
 		r.cachewg.Wait()
+	}
 }
 
 // New creates a new initialized metric router

pkg/ccMetric/README.md

@@ -0,0 +1,57 @@
+# ClusterCockpit metrics
+
+As described in the [ClusterCockpit specifications](https://github.com/ClusterCockpit/cc-specifications), the whole ClusterCockpit stack uses metrics in the InfluxDB line protocol format. This is also the input and output format for the ClusterCockpit Metric Collector but internally it uses an extended format while processing, named CCMetric.
+
+It is basically a copy of the [InfluxDB line protocol](https://github.com/influxdata/line-protocol) `MutableMetric` interface with one extension. Besides the tags and fields, it contains a list of meta information (re-using the `Tag` structure of the original protocol):
+
+```golang
+type ccMetric struct {
+    name   string                 // Measurement name
+    meta   map[string]string      // map of meta data tags
+    tags   map[string]string      // map of of tags
+    fields map[string]interface{} // map of of fields
+    tm     time.Time              // timestamp
+}
+
+type CCMetric interface {
+    ToPoint(metaAsTags map[string]bool) *write.Point  // Generate influxDB point for data type ccMetric
+    ToLineProtocol(metaAsTags map[string]bool) string // Generate influxDB line protocol for data type ccMetric
+    String() string                                   // Return line-protocol like string
+
+    Name() string        // Get metric name
+    SetName(name string) // Set metric name
+
+    Time() time.Time     // Get timestamp
+    SetTime(t time.Time) // Set timestamp
+
+    Tags() map[string]string                   // Map of tags
+    AddTag(key, value string)                  // Add a tag
+    GetTag(key string) (value string, ok bool) // Get a tag by its key
+    HasTag(key string) (ok bool)               // Check if a tag key is present
+    RemoveTag(key string)                      // Remove a tag by its key
+
+    Meta() map[string]string                    // Map of meta data tags
+    AddMeta(key, value string)                  // Add a meta data tag
+    GetMeta(key string) (value string, ok bool) // Get a meta data tab addressed by its key
+    HasMeta(key string) (ok bool)               // Check if a meta data key is present
+    RemoveMeta(key string)                      // Remove a meta data tag by its key
+
+    Fields() map[string]interface{}                   // Map of fields
+    AddField(key string, value interface{})           // Add a field
+    GetField(key string) (value interface{}, ok bool) // Get a field addressed by its key
+    HasField(key string) (ok bool)                    // Check if a field key is present
+    RemoveField(key string)                           // Remove a field addressed by its key
+}
+
+func New(name string, tags map[string]string, meta map[string]string, fields map[string]interface{}, tm time.Time) (CCMetric, error)
+func FromMetric(other CCMetric) CCMetric
+func FromInfluxMetric(other lp.Metric) CCMetric
+```
+
+The `CCMetric` interface provides the same functions as the `MutableMetric` like `{Add, Get, Remove, Has}{Tag, Field}` and additionally provides `{Add, Get, Remove, Has}Meta`.
+
+The InfluxDB protocol creates a new metric with `influx.New(name, tags, fields, time)` while CCMetric uses `ccMetric.New(name, tags, meta, fields, time)` where `tags` and `meta` are both of type `map[string]string`.
+
+You can copy a CCMetric with `FromMetric(other CCMetric) CCMetric`. If you get an `influx.Metric` from a function, like the line protocol parser, you can use `FromInfluxMetric(other influx.Metric) CCMetric` to get a CCMetric out of it (see `NatsReceiver` for an example).
+
+Although the [cc-specifications](https://github.com/ClusterCockpit/cc-specifications/blob/master/interfaces/lineprotocol/README.md) defines that there is only a `value` field for the metric value, the CCMetric still can have multiple values similar to the InfluxDB line protocol.

pkg/ccMetric/ccMetric.go

@@ -0,0 +1,353 @@
+package ccmetric
+
+import (
+	"fmt"
+	"time"
+
+	influxdb2 "github.com/influxdata/influxdb-client-go/v2"
+	write "github.com/influxdata/influxdb-client-go/v2/api/write"
+	lp "github.com/influxdata/line-protocol" // MIT license
+	"golang.org/x/exp/maps"
+)
+
+// Most functions are derived from github.com/influxdata/line-protocol/metric.go
+// The metric type is extended with an extra meta information list re-using the Tag
+// type.
+//
+// See: https://docs.influxdata.com/influxdb/latest/reference/syntax/line-protocol/
+type ccMetric struct {
+	name   string                 // Measurement name
+	meta   map[string]string      // map of meta data tags
+	tags   map[string]string      // map of of tags
+	fields map[string]interface{} // map of of fields
+	tm     time.Time              // timestamp
+}
+
+// ccMetric access functions
+type CCMetric interface {
+	ToPoint(metaAsTags map[string]bool) *write.Point  // Generate influxDB point for data type ccMetric
+	ToLineProtocol(metaAsTags map[string]bool) string // Generate influxDB line protocol for data type ccMetric
+
+	Name() string        // Get metric name
+	SetName(name string) // Set metric name
+
+	Time() time.Time     // Get timestamp
+	SetTime(t time.Time) // Set timestamp
+
+	Tags() map[string]string                   // Map of tags
+	AddTag(key, value string)                  // Add a tag
+	GetTag(key string) (value string, ok bool) // Get a tag by its key
+	HasTag(key string) (ok bool)               // Check if a tag key is present
+	RemoveTag(key string)                      // Remove a tag by its key
+
+	Meta() map[string]string                    // Map of meta data tags
+	AddMeta(key, value string)                  // Add a meta data tag
+	GetMeta(key string) (value string, ok bool) // Get a meta data tab addressed by its key
+	HasMeta(key string) (ok bool)               // Check if a meta data key is present
+	RemoveMeta(key string)                      // Remove a meta data tag by its key
+
+	Fields() map[string]interface{}                   // Map of fields
+	AddField(key string, value interface{})           // Add a field
+	GetField(key string) (value interface{}, ok bool) // Get a field addressed by its key
+	HasField(key string) (ok bool)                    // Check if a field key is present
+	RemoveField(key string)                           // Remove a field addressed by its key
+	String() string                                   // Return line-protocol like string
+}
+
+// String implements the stringer interface for data type ccMetric
+func (m *ccMetric) String() string {
+	return fmt.Sprintf(
+		"Name: %s, Tags: %+v, Meta: %+v, fields: %+v, Timestamp: %d",
+		m.name, m.tags, m.meta, m.fields, m.tm.UnixNano(),
+	)
+}
+
+// ToLineProtocol generates influxDB line protocol for data type ccMetric
+func (m *ccMetric) ToPoint(metaAsTags map[string]bool) (p *write.Point) {
+	p = influxdb2.NewPoint(m.name, m.tags, m.fields, m.tm)
+	for key, use_as_tag := range metaAsTags {
+		if use_as_tag {
+			if value, ok := m.GetMeta(key); ok {
+				p.AddTag(key, value)
+			}
+		}
+	}
+	return p
+}
+
+// ToLineProtocol generates influxDB line protocol for data type ccMetric
+func (m *ccMetric) ToLineProtocol(metaAsTags map[string]bool) string {
+
+	return write.PointToLineProtocol(
+		m.ToPoint(metaAsTags),
+		time.Nanosecond,
+	)
+}
+
+// Name returns the measurement name
+func (m *ccMetric) Name() string {
+	return m.name
+}
+
+// SetName sets the measurement name
+func (m *ccMetric) SetName(name string) {
+	m.name = name
+}
+
+// Time returns timestamp
+func (m *ccMetric) Time() time.Time {
+	return m.tm
+}
+
+// SetTime sets the timestamp
+func (m *ccMetric) SetTime(t time.Time) {
+	m.tm = t
+}
+
+// Tags returns the the list of tags as key-value-mapping
+func (m *ccMetric) Tags() map[string]string {
+	return m.tags
+}
+
+// AddTag adds a tag (consisting of key and value) to the map of tags
+func (m *ccMetric) AddTag(key, value string) {
+	m.tags[key] = value
+}
+
+// GetTag returns the tag with tag's key equal to <key>
+func (m *ccMetric) GetTag(key string) (string, bool) {
+	value, ok := m.tags[key]
+	return value, ok
+}
+
+// HasTag checks if a tag with key equal to <key> is present in the list of tags
+func (m *ccMetric) HasTag(key string) bool {
+	_, ok := m.tags[key]
+	return ok
+}
+
+// RemoveTag removes the tag with tag's key equal to <key>
+func (m *ccMetric) RemoveTag(key string) {
+	delete(m.tags, key)
+}
+
+// Meta returns the meta data tags as key-value mapping
+func (m *ccMetric) Meta() map[string]string {
+	return m.meta
+}
+
+// AddMeta adds a meta data tag (consisting of key and value) to the map of meta data tags
+func (m *ccMetric) AddMeta(key, value string) {
+	m.meta[key] = value
+}
+
+// GetMeta returns the meta data tag with meta data's key equal to <key>
+func (m *ccMetric) GetMeta(key string) (string, bool) {
+	value, ok := m.meta[key]
+	return value, ok
+}
+
+// HasMeta checks if a meta data tag with meta data's key equal to <key> is present in the map of meta data tags
+func (m *ccMetric) HasMeta(key string) bool {
+	_, ok := m.meta[key]
+	return ok
+}
+
+// RemoveMeta removes the meta data tag with tag's key equal to <key>
+func (m *ccMetric) RemoveMeta(key string) {
+	delete(m.meta, key)
+}
+
+// Fields returns the list of fields as key-value-mapping
+func (m *ccMetric) Fields() map[string]interface{} {
+	return m.fields
+}
+
+// AddField adds a field (consisting of key and value) to the map of fields
+func (m *ccMetric) AddField(key string, value interface{}) {
+	m.fields[key] = value
+}
+
+// GetField returns the field with field's key equal to <key>
+func (m *ccMetric) GetField(key string) (interface{}, bool) {
+	v, ok := m.fields[key]
+	return v, ok
+}
+
+// HasField checks if a field with field's key equal to <key> is present in the map of fields
+func (m *ccMetric) HasField(key string) bool {
+	_, ok := m.fields[key]
+	return ok
+}
+
+// RemoveField removes the field with field's key equal to <key>
+// from the map of fields
+func (m *ccMetric) RemoveField(key string) {
+	delete(m.fields, key)
+}
+
+// New creates a new measurement point
+func New(
+	name string,
+	tags map[string]string,
+	meta map[string]string,
+	fields map[string]interface{},
+	tm time.Time,
+) (CCMetric, error) {
+	m := &ccMetric{
+		name:   name,
+		tags:   maps.Clone(tags),
+		meta:   maps.Clone(meta),
+		fields: make(map[string]interface{}, len(fields)),
+		tm:     tm,
+	}
+
+	// deep copy fields
+	for k, v := range fields {
+		v := convertField(v)
+		if v == nil {
+			continue
+		}
+		m.fields[k] = v
+	}
+
+	return m, nil
+}
+
+// FromMetric copies the metric <other>
+func FromMetric(other CCMetric) CCMetric {
+
+	return &ccMetric{
+		name:   other.Name(),
+		tags:   maps.Clone(other.Tags()),
+		meta:   maps.Clone(other.Meta()),
+		fields: maps.Clone(other.Fields()),
+		tm:     other.Time(),
+	}
+}
+
+// FromInfluxMetric copies the influxDB line protocol metric <other>
+func FromInfluxMetric(other lp.Metric) CCMetric {
+	m := &ccMetric{
+		name:   other.Name(),
+		tags:   make(map[string]string),
+		meta:   make(map[string]string),
+		fields: make(map[string]interface{}),
+		tm:     other.Time(),
+	}
+
+	// deep copy tags and fields
+	for _, otherTag := range other.TagList() {
+		m.tags[otherTag.Key] = otherTag.Value
+	}
+	for _, otherField := range other.FieldList() {
+		m.fields[otherField.Key] = otherField.Value
+	}
+	return m
+}
+
+// convertField converts data types of fields by the following schemata:
+//
+//	                       *float32, *float64,                      float32, float64 -> float64
+//	*int,  *int8,  *int16,   *int32,   *int64,  int,  int8,  int16,   int32,   int64 ->   int64
+//
+// *uint, *uint8, *uint16,  *uint32,  *uint64, uint, uint8, uint16,  uint32,  uint64 ->  uint64
+// *[]byte, *string,                           []byte, string                        -> string
+// *bool,                                      bool                                  -> bool
+func convertField(v interface{}) interface{} {
+	switch v := v.(type) {
+	case float64:
+		return v
+	case int64:
+		return v
+	case string:
+		return v
+	case bool:
+		return v
+	case int:
+		return int64(v)
+	case uint:
+		return uint64(v)
+	case uint64:
+		return uint64(v)
+	case []byte:
+		return string(v)
+	case int32:
+		return int64(v)
+	case int16:
+		return int64(v)
+	case int8:
+		return int64(v)
+	case uint32:
+		return uint64(v)
+	case uint16:
+		return uint64(v)
+	case uint8:
+		return uint64(v)
+	case float32:
+		return float64(v)
+	case *float64:
+		if v != nil {
+			return *v
+		}
+	case *int64:
+		if v != nil {
+			return *v
+		}
+	case *string:
+		if v != nil {
+			return *v
+		}
+	case *bool:
+		if v != nil {
+			return *v
+		}
+	case *int:
+		if v != nil {
+			return int64(*v)
+		}
+	case *uint:
+		if v != nil {
+			return uint64(*v)
+		}
+	case *uint64:
+		if v != nil {
+			return uint64(*v)
+		}
+	case *[]byte:
+		if v != nil {
+			return string(*v)
+		}
+	case *int32:
+		if v != nil {
+			return int64(*v)
+		}
+	case *int16:
+		if v != nil {
+			return int64(*v)
+		}
+	case *int8:
+		if v != nil {
+			return int64(*v)
+		}
+	case *uint32:
+		if v != nil {
+			return uint64(*v)
+		}
+	case *uint16:
+		if v != nil {
+			return uint64(*v)
+		}
+	case *uint8:
+		if v != nil {
+			return uint64(*v)
+		}
+	case *float32:
+		if v != nil {
+			return float64(*v)
+		}
+	default:
+		return nil
+	}
+	return nil
+}

pkg/ccTopology/ccTopology.go

@@ -0,0 +1,463 @@
+package ccTopology
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path/filepath"
+	"regexp"
+	"strconv"
+	"strings"
+
+	cclogger "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	"golang.org/x/exp/slices"
+)
+
+const SYSFS_CPUBASE = `/sys/devices/system/cpu`
+
+// Structure holding all information about a hardware thread
+// See https://www.kernel.org/doc/Documentation/ABI/stable/sysfs-devices-system-cpu
+type HwthreadEntry struct {
+	// for each CPUx:
+	CpuID        int   // CPU / hardware thread ID
+	SMT          int   // Simultaneous Multithreading ID
+	CoreCPUsList []int // CPUs within the same core
+	Core         int   // Socket local core ID
+	Socket       int   // Sockets (physical) ID
+	Die          int   // Die ID
+	NumaDomain   int   // NUMA Domain
+}
+
+var cache struct {
+	HwthreadList   []int // List of CPU hardware threads
+	SMTList        []int // List of symmetric hyper threading IDs
+	CoreList       []int // List of CPU core IDs
+	SocketList     []int // List of CPU sockets (physical) IDs
+	DieList        []int // List of CPU Die IDs
+	NumaDomainList []int // List of NUMA Domains
+
+	CpuData []HwthreadEntry
+}
+
+// fileToInt reads an integer value from a sysfs file
+// In case of an error -1 is returned
+func fileToInt(path string) int {
+	buffer, err := os.ReadFile(path)
+	if err != nil {
+		log.Print(err)
+		cclogger.ComponentError("ccTopology", "fileToInt", "Reading", path, ":", err.Error())
+		return -1
+	}
+	stringBuffer := strings.TrimSpace(string(buffer))
+	id, err := strconv.Atoi(stringBuffer)
+	if err != nil {
+		cclogger.ComponentError("ccTopology", "fileToInt", "Parsing", path, ":", stringBuffer, err.Error())
+		return -1
+	}
+	return id
+}
+
+// fileToList reads a list from a sysfs file
+// A list consists of value ranges separated by colon
+// A range can be a single value or a range of values given by a startValue-endValue
+// In case of an error nil is returned
+func fileToList(path string) []int {
+	// Read list
+	buffer, err := os.ReadFile(path)
+	if err != nil {
+		log.Print(err)
+		cclogger.ComponentError("ccTopology", "fileToList", "Reading", path, ":", err.Error())
+		return nil
+	}
+
+	// Create list
+	list := make([]int, 0)
+	stringBuffer := strings.TrimSpace(string(buffer))
+	for _, valueRangeString := range strings.Split(stringBuffer, ",") {
+		valueRange := strings.Split(valueRangeString, "-")
+		switch len(valueRange) {
+		case 1:
+			singleValue, err := strconv.Atoi(valueRange[0])
+			if err != nil {
+				cclogger.ComponentError("CCTopology", "fileToList", "Parsing", valueRange[0], ":", err.Error())
+				return nil
+			}
+			list = append(list, singleValue)
+		case 2:
+			startValue, err := strconv.Atoi(valueRange[0])
+			if err != nil {
+				cclogger.ComponentError("CCTopology", "fileToList", "Parsing", valueRange[0], ":", err.Error())
+				return nil
+			}
+			endValue, err := strconv.Atoi(valueRange[1])
+			if err != nil {
+				cclogger.ComponentError("CCTopology", "fileToList", "Parsing", valueRange[1], ":", err.Error())
+				return nil
+			}
+			for value := startValue; value <= endValue; value++ {
+				list = append(list, value)
+			}
+		}
+	}
+
+	return list
+}
+
+// init initializes the cache structure
+func init() {
+
+	getHWThreads :=
+		func() []int {
+			globPath := filepath.Join(SYSFS_CPUBASE, "cpu[0-9]*")
+			regexPath := filepath.Join(SYSFS_CPUBASE, "cpu([[:digit:]]+)")
+			regex := regexp.MustCompile(regexPath)
+
+			// File globbing for hardware threads
+			files, err := filepath.Glob(globPath)
+			if err != nil {
+				cclogger.ComponentError("CCTopology", "init:getHWThreads", err.Error())
+				return nil
+			}
+
+			hwThreadIDs := make([]int, len(files))
+			for i, file := range files {
+				// Extract hardware thread ID
+				matches := regex.FindStringSubmatch(file)
+				if len(matches) != 2 {
+					cclogger.ComponentError("CCTopology", "init:getHWThreads: Failed to extract hardware thread ID from ", file)
+					return nil
+				}
+
+				// Convert hardware thread ID to int
+				id, err := strconv.Atoi(matches[1])
+				if err != nil {
+					cclogger.ComponentError("CCTopology", "init:getHWThreads: Failed to convert to int hardware thread ID ", matches[1])
+					return nil
+				}
+
+				hwThreadIDs[i] = id
+			}
+
+			// Sort hardware thread IDs
+			slices.Sort(hwThreadIDs)
+			return hwThreadIDs
+		}
+
+	getNumaDomain :=
+		func(basePath string) int {
+			globPath := filepath.Join(basePath, "node*")
+			regexPath := filepath.Join(basePath, "node([[:digit:]]+)")
+			regex := regexp.MustCompile(regexPath)
+
+			// File globbing for NUMA node
+			files, err := filepath.Glob(globPath)
+			if err != nil {
+				cclogger.ComponentError("CCTopology", "init:getNumaDomain", err.Error())
+				return -1
+			}
+
+			// Check, that exactly one NUMA domain was found
+			if len(files) != 1 {
+				cclogger.ComponentError("CCTopology", "init:getNumaDomain", "Number of NUMA domains != 1: ", len(files))
+				return -1
+			}
+
+			// Extract NUMA node ID
+			matches := regex.FindStringSubmatch(files[0])
+			if len(matches) != 2 {
+				cclogger.ComponentError("CCTopology", "init:getNumaDomain", "Failed to extract NUMA node ID from: ", files[0])
+				return -1
+			}
+
+			id, err := strconv.Atoi(matches[1])
+			if err != nil {
+				cclogger.ComponentError("CCTopology", "init:getNumaDomain", "Failed to parse NUMA node ID from: ", matches[1])
+				return -1
+			}
+
+			return id
+		}
+
+	cache.HwthreadList = getHWThreads()
+	cache.CoreList = make([]int, len(cache.HwthreadList))
+	cache.SocketList = make([]int, len(cache.HwthreadList))
+	cache.DieList = make([]int, len(cache.HwthreadList))
+	cache.SMTList = make([]int, len(cache.HwthreadList))
+	cache.NumaDomainList = make([]int, len(cache.HwthreadList))
+	cache.CpuData = make([]HwthreadEntry, len(cache.HwthreadList))
+	for i, c := range cache.HwthreadList {
+		// Set cpuBase directory for topology lookup
+		cpuBase := filepath.Join(SYSFS_CPUBASE, fmt.Sprintf("cpu%d", c))
+		topoBase := filepath.Join(cpuBase, "topology")
+
+		// Lookup Core ID
+		cache.CoreList[i] = fileToInt(filepath.Join(topoBase, "core_id"))
+
+		// Lookup socket / physical package ID
+		cache.SocketList[i] = fileToInt(filepath.Join(topoBase, "physical_package_id"))
+
+		// Lookup CPU die id
+		cache.DieList[i] = fileToInt(filepath.Join(topoBase, "die_id"))
+		if cache.DieList[i] < 0 {
+			cache.DieList[i] = cache.SocketList[i]
+		}
+
+		// Lookup List of CPUs within the same core
+		coreCPUsList := fileToList(filepath.Join(topoBase, "core_cpus_list"))
+
+		// Find index of CPU ID in List of CPUs within the same core
+		// if not found return -1
+		cache.SMTList[i] = slices.Index(coreCPUsList, c)
+
+		// Lookup NUMA domain id
+		cache.NumaDomainList[i] = getNumaDomain(cpuBase)
+
+		cache.CpuData[i] =
+			HwthreadEntry{
+				CpuID:        cache.HwthreadList[i],
+				SMT:          cache.SMTList[i],
+				CoreCPUsList: coreCPUsList,
+				Socket:       cache.SocketList[i],
+				NumaDomain:   cache.NumaDomainList[i],
+				Die:          cache.DieList[i],
+				Core:         cache.CoreList[i],
+			}
+	}
+
+	slices.Sort(cache.HwthreadList)
+	cache.HwthreadList = slices.Compact(cache.HwthreadList)
+
+	slices.Sort(cache.SMTList)
+	cache.SMTList = slices.Compact(cache.SMTList)
+
+	slices.Sort(cache.CoreList)
+	cache.CoreList = slices.Compact(cache.CoreList)
+
+	slices.Sort(cache.SocketList)
+	cache.SocketList = slices.Compact(cache.SocketList)
+
+	slices.Sort(cache.DieList)
+	cache.DieList = slices.Compact(cache.DieList)
+
+	slices.Sort(cache.NumaDomainList)
+	cache.NumaDomainList = slices.Compact(cache.NumaDomainList)
+}
+
+// SocketList gets the list of CPU socket IDs
+func SocketList() []int {
+	return slices.Clone(cache.SocketList)
+}
+
+// HwthreadList gets the list of hardware thread IDs in the order of listing in /proc/cpuinfo
+func HwthreadList() []int {
+	return slices.Clone(cache.HwthreadList)
+}
+
+// Get list of hardware thread IDs in the order of listing in /proc/cpuinfo
+// Deprecated! Use HwthreadList()
+func CpuList() []int {
+	return HwthreadList()
+}
+
+// CoreList gets the list of CPU core IDs in the order of listing in /proc/cpuinfo
+func CoreList() []int {
+	return slices.Clone(cache.CoreList)
+}
+
+// Get list of NUMA node IDs
+func NumaNodeList() []int {
+	return slices.Clone(cache.NumaDomainList)
+}
+
+// DieList gets the list of CPU die IDs
+func DieList() []int {
+	if len(cache.DieList) > 0 {
+		return slices.Clone(cache.DieList)
+	}
+	return SocketList()
+}
+
+// GetTypeList gets the list of specified type using the naming format inside ClusterCockpit
+func GetTypeList(topology_type string) []int {
+	switch topology_type {
+	case "node":
+		return []int{0}
+	case "socket":
+		return SocketList()
+	case "die":
+		return DieList()
+	case "memoryDomain":
+		return NumaNodeList()
+	case "core":
+		return CoreList()
+	case "hwthread":
+		return HwthreadList()
+	}
+	return []int{}
+}
+
+func GetTypeId(hwt HwthreadEntry, topology_type string) (int, error) {
+	var err error = nil
+	switch topology_type {
+	case "node":
+		return 0, err
+	case "socket":
+		return hwt.Socket, err
+	case "die":
+		return hwt.Die, err
+	case "memoryDomain":
+		return hwt.NumaDomain, err
+	case "core":
+		return hwt.Core, err
+	case "hwthread":
+		return hwt.CpuID, err
+	}
+	return -1, fmt.Errorf("unknown topology type '%s'", topology_type)
+}
+
+// CpuData returns CPU data for each hardware thread
+func CpuData() []HwthreadEntry {
+	// return a deep copy to protect cache data
+	c := slices.Clone(cache.CpuData)
+	for i := range c {
+		c[i].CoreCPUsList = slices.Clone(cache.CpuData[i].CoreCPUsList)
+	}
+	return c
+}
+
+// Structure holding basic information about a CPU
+type CpuInformation struct {
+	NumHWthreads   int
+	SMTWidth       int
+	NumSockets     int
+	NumDies        int
+	NumCores       int
+	NumNumaDomains int
+}
+
+// CpuInformation reports basic information about the CPU
+func CpuInfo() CpuInformation {
+	return CpuInformation{
+		NumNumaDomains: len(cache.NumaDomainList),
+		SMTWidth:       len(cache.SMTList),
+		NumDies:        len(cache.DieList),
+		NumCores:       len(cache.CoreList),
+		NumSockets:     len(cache.SocketList),
+		NumHWthreads:   len(cache.HwthreadList),
+	}
+}
+
+// GetHwthreadSocket gets the CPU socket ID for a given hardware thread ID
+// In case hardware thread ID is not found -1 is returned
+func GetHwthreadSocket(cpuID int) int {
+	for i := range cache.CpuData {
+		d := &cache.CpuData[i]
+		if d.CpuID == cpuID {
+			return d.Socket
+		}
+	}
+	return -1
+}
+
+// GetHwthreadNumaDomain gets the NUMA domain ID for a given hardware thread ID
+// In case hardware thread ID is not found -1 is returned
+func GetHwthreadNumaDomain(cpuID int) int {
+	for i := range cache.CpuData {
+		d := &cache.CpuData[i]
+		if d.CpuID == cpuID {
+			return d.NumaDomain
+		}
+	}
+	return -1
+}
+
+// GetHwthreadDie gets the CPU die ID for a given hardware thread ID
+// In case hardware thread ID is not found -1 is returned
+func GetHwthreadDie(cpuID int) int {
+	for i := range cache.CpuData {
+		d := &cache.CpuData[i]
+		if d.CpuID == cpuID {
+			return d.Die
+		}
+	}
+	return -1
+}
+
+// GetHwthreadCore gets the CPU core ID for a given hardware thread ID
+// In case hardware thread ID is not found -1 is returned
+func GetHwthreadCore(cpuID int) int {
+	for i := range cache.CpuData {
+		d := &cache.CpuData[i]
+		if d.CpuID == cpuID {
+			return d.Core
+		}
+	}
+	return -1
+}
+
+// GetSocketHwthreads gets all hardware thread IDs associated with a CPU socket
+func GetSocketHwthreads(socket int) []int {
+	cpuList := make([]int, 0)
+	for i := range cache.CpuData {
+		d := &cache.CpuData[i]
+		if d.Socket == socket {
+			cpuList = append(cpuList, d.CpuID)
+		}
+	}
+	return cpuList
+}
+
+// GetNumaDomainHwthreads gets the all hardware thread IDs associated with a NUMA domain
+func GetNumaDomainHwthreads(numaDomain int) []int {
+	cpuList := make([]int, 0)
+	for i := range cache.CpuData {
+		d := &cache.CpuData[i]
+		if d.NumaDomain == numaDomain {
+			cpuList = append(cpuList, d.CpuID)
+		}
+	}
+	return cpuList
+}
+
+// GetDieHwthreads gets all hardware thread IDs associated with a CPU die
+func GetDieHwthreads(die int) []int {
+	cpuList := make([]int, 0)
+	for i := range cache.CpuData {
+		d := &cache.CpuData[i]
+		if d.Die == die {
+			cpuList = append(cpuList, d.CpuID)
+		}
+	}
+	return cpuList
+}
+
+// GetCoreHwthreads get all hardware thread IDs associated with a CPU core
+func GetCoreHwthreads(core int) []int {
+	cpuList := make([]int, 0)
+	for i := range cache.CpuData {
+		d := &cache.CpuData[i]
+		if d.Core == core {
+			cpuList = append(cpuList, d.CpuID)
+		}
+	}
+	return cpuList
+}
+
+// GetTypeList gets the list of specified type using the naming format inside ClusterCockpit
+func GetTypeHwthreads(topology_type string, id int) []int {
+	switch topology_type {
+	case "node":
+		return HwthreadList()
+	case "socket":
+		return GetSocketHwthreads(id)
+	case "die":
+		return GetDieHwthreads(id)
+	case "memoryDomain":
+		return GetNumaDomainHwthreads(id)
+	case "core":
+		return GetCoreHwthreads(id)
+	case "hwthread":
+		return []int{id}
+	}
+	return []int{}
+}

pkg/hostlist/hostlist.go

@@ -0,0 +1,125 @@
+package hostlist
+
+import (
+	"fmt"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+)
+
+func Expand(in string) (result []string, err error) {
+
+	// Create ranges regular expression
+	reStNumber := "[[:digit:]]+"
+	reStRange := reStNumber + "-" + reStNumber
+	reStOptionalNumberOrRange := "(" + reStNumber + ",|" + reStRange + ",)*"
+	reStNumberOrRange := "(" + reStNumber + "|" + reStRange + ")"
+	reStBraceLeft := "[[]"
+	reStBraceRight := "[]]"
+	reStRanges := reStBraceLeft +
+		reStOptionalNumberOrRange +
+		reStNumberOrRange +
+		reStBraceRight
+	reRanges := regexp.MustCompile(reStRanges)
+
+	// Create host list regular expression
+	reStDNSChars := "[a-zA-Z0-9-]+"
+	reStPrefix := "^(" + reStDNSChars + ")"
+	reStOptionalSuffix := "(" + reStDNSChars + ")?"
+	re := regexp.MustCompile(reStPrefix + "([[][0-9,-]+[]])?" + reStOptionalSuffix)
+
+	// Remove all delimiters from the input
+	in = strings.TrimLeft(in, ", ")
+
+	for len(in) > 0 {
+		if v := re.FindStringSubmatch(in); v != nil {
+
+			// Remove matched part from the input
+			lenPrefix := len(v[0])
+			in = in[lenPrefix:]
+
+			// Remove all delimiters from the input
+			in = strings.TrimLeft(in, ", ")
+
+			// matched prefix, range and suffix
+			hlPrefix := v[1]
+			hlRanges := v[2]
+			hlSuffix := v[3]
+
+			// Single node without ranges
+			if hlRanges == "" {
+				result = append(result, hlPrefix)
+				continue
+			}
+
+			// Node with ranges
+			if v := reRanges.FindStringSubmatch(hlRanges); v != nil {
+
+				// Remove braces
+				hlRanges = hlRanges[1 : len(hlRanges)-1]
+
+				// Split host ranges at ,
+				for _, hlRange := range strings.Split(hlRanges, ",") {
+
+					// Split host range at -
+					RangeStartEnd := strings.Split(hlRange, "-")
+
+					// Range is only a single number
+					if len(RangeStartEnd) == 1 {
+						result = append(result, hlPrefix+RangeStartEnd[0]+hlSuffix)
+						continue
+					}
+
+					// Range has a start and an end
+					widthRangeStart := len(RangeStartEnd[0])
+					widthRangeEnd := len(RangeStartEnd[1])
+					iStart, _ := strconv.ParseUint(RangeStartEnd[0], 10, 64)
+					iEnd, _ := strconv.ParseUint(RangeStartEnd[1], 10, 64)
+					if iStart > iEnd {
+						return nil, fmt.Errorf("single range start is greater than end: %s", hlRange)
+					}
+
+					// Create print format string for range numbers
+					doPadding := widthRangeStart == widthRangeEnd
+					widthPadding := widthRangeStart
+					var formatString string
+					if doPadding {
+						formatString = "%0" + fmt.Sprint(widthPadding) + "d"
+					} else {
+						formatString = "%d"
+					}
+					formatString = hlPrefix + formatString + hlSuffix
+
+					// Add nodes from this range
+					for i := iStart; i <= iEnd; i++ {
+						result = append(result, fmt.Sprintf(formatString, i))
+					}
+				}
+			} else {
+				return nil, fmt.Errorf("not at hostlist range: %s", hlRanges)
+			}
+		} else {
+			return nil, fmt.Errorf("not a hostlist: %s", in)
+		}
+	}
+
+	if result != nil {
+		// sort
+		sort.Strings(result)
+
+		// uniq
+		previous := 1
+		for current := 1; current < len(result); current++ {
+			if result[current-1] != result[current] {
+				if previous != current {
+					result[previous] = result[current]
+				}
+				previous++
+			}
+		}
+		result = result[:previous]
+	}
+
+	return
+}

pkg/hostlist/hostlist_test.go

@@ -0,0 +1,126 @@
+package hostlist
+
+import (
+	"testing"
+)
+
+func TestExpand(t *testing.T) {
+
+	// Compare two slices of strings
+	equal := func(a, b []string) bool {
+		if len(a) != len(b) {
+			return false
+		}
+		for i, v := range a {
+			if v != b[i] {
+				return false
+			}
+		}
+		return true
+	}
+
+	type testDefinition struct {
+		input          string
+		resultExpected []string
+		errorExpected  bool
+	}
+
+	expandTests := []testDefinition{
+		{
+			// Single node
+			input:          "n1",
+			resultExpected: []string{"n1"},
+			errorExpected:  false,
+		},
+		{
+			// Single node, duplicated
+			input:          "n1,n1",
+			resultExpected: []string{"n1"},
+			errorExpected:  false,
+		},
+		{
+			// Single node with padding
+			input:          "n[01]",
+			resultExpected: []string{"n01"},
+			errorExpected:  false,
+		},
+		{
+			// Single node with suffix
+			input:          "n[01]-p",
+			resultExpected: []string{"n01-p"},
+			errorExpected:  false,
+		},
+		{
+			// Multiple nodes with a single range
+			input:          "n[1-2]",
+			resultExpected: []string{"n1", "n2"},
+			errorExpected:  false,
+		},
+		{
+			// Multiple nodes with a single range and a single index
+			input:          "n[1-2,3]",
+			resultExpected: []string{"n1", "n2", "n3"},
+			errorExpected:  false,
+		},
+		{
+			// Multiple nodes with different prefixes
+			input:          "n[1-2],m[1,2]",
+			resultExpected: []string{"m1", "m2", "n1", "n2"},
+			errorExpected:  false,
+		},
+		{
+			// Multiple nodes with different suffixes
+			input:          "n[1-2]-p,n[1,2]-q",
+			resultExpected: []string{"n1-p", "n1-q", "n2-p", "n2-q"},
+			errorExpected:  false,
+		},
+		{
+			// Multiple nodes with and without node ranges
+			input:          " n09, n[01-04,06-07,09] , , n10,n04",
+			resultExpected: []string{"n01", "n02", "n03", "n04", "n06", "n07", "n09", "n10"},
+			errorExpected:  false,
+		},
+		{
+			// Forbidden DNS character
+			input:          "n@",
+			resultExpected: []string{},
+			errorExpected:  true,
+		},
+		{
+			// Forbidden range
+			input:          "n[1-2-2,3]",
+			resultExpected: []string{},
+			errorExpected:  true,
+		},
+		{
+			// Forbidden range limits
+			input:          "n[2-1]",
+			resultExpected: []string{},
+			errorExpected:  true,
+		},
+	}
+
+	for _, expandTest := range expandTests {
+		result, err := Expand(expandTest.input)
+
+		hasError := err != nil
+		if hasError != expandTest.errorExpected && hasError {
+			t.Errorf("Expand('%s') failed: unexpected error '%v'",
+				expandTest.input, err)
+			continue
+		}
+		if hasError != expandTest.errorExpected && !hasError {
+			t.Errorf("Expand('%s') did not fail as expected: got result '%+v'",
+				expandTest.input, result)
+			continue
+		}
+		if !hasError && !equal(result, expandTest.resultExpected) {
+			t.Errorf("Expand('%s') failed: got result '%+v', expected result '%v'",
+				expandTest.input, result, expandTest.resultExpected)
+			continue
+		}
+
+		t.Logf("Checked hostlist.Expand('%s'): result = '%+v', err = '%v'",
+			expandTest.input, result, err)
+	}
+}

pkg/messageProcessor/README.md

@@ -0,0 +1,266 @@
+# Message Processor Component
+
+Multiple parts of in the ClusterCockit ecosystem require the processing of CCMessages.
+The main CC application using it is `cc-metric-collector`. The processing part there was originally in the metric router, the central
+hub connecting collectors (reading local data), receivers (receiving remote data) and sinks (sending data). Already in early stages, the
+lack of flexibility caused some trouble:
+
+> The sysadmins wanted to keep operating their Ganglia based monitoring infrastructure while we developed the CC stack. Ganglia wants the core metrics with
+> a specific name and resolution (right unit prefix) but there was no conversion of the data in the CC stack, so CC frontend developers wanted a different
+> resolution for some metrics. The issue was basically the `mem_used` metric showing the currently used memory of the node. Ganglia wants it in `kByte` as provided
+> by the Linux operating system but CC wanted it in `GByte`.
+
+With the message processor, the Ganglia sinks can apply the unit prefix changes individually and name the metrics as required by Ganglia.
+
+## For developers
+
+Whenever you receive or are about to send a message out, you should provide some processing.
+
+### Configuration of component
+
+New operations can be added to the message processor at runtime. Of course, they can also be removed again. For the initial setup, having a configuration file
+or some fields in a configuration file for the processing.
+
+The message processor uses the following configuration
+
+```json
+{
+	"drop_messages": [
+		"name_of_message_to_drop"
+	],
+	"drop_messages_if": [
+		"condition_when_to_drop_message",
+		"name == 'drop_this'",
+		"tag.hostname == 'this_host'",
+		"meta.unit != 'MB'"
+	],
+	"rename_messages" : {
+		"old_message_name" : "new_message_name"
+	},
+	"rename_messages_if": {
+		"condition_when_to_rename_message" : "new_name"
+	},
+	"add_tags_if": [
+		{
+			"if" : "condition_when_to_add_tag",
+			"key": "name_for_new_tag",
+			"value": "new_tag_value"
+		}
+	],
+	"delete_tags_if": [
+		{
+			"if" : "condition_when_to_delete_tag",
+			"key": "name_of_tag"
+		}
+	],
+	"add_meta_if": [
+		{
+			"if" : "condition_when_to_add_meta_info",
+			"key": "name_for_new_meta_info",
+			"value": "new_meta_info_value"
+		}
+	],
+	"delete_meta_if": [
+		{
+			"if" : "condition_when_to_delete_meta_info",
+			"key": "name_of_meta_info"
+		}
+	],
+	"add_field_if": [
+		{
+			"if" : "condition_when_to_add_field",
+			"key": "name_for_new_field",
+			"value": "new_field_value_but_only_string_at_the_moment"
+		}
+	],
+	"delete_field_if": [
+		{
+			"if" : "condition_when_to_delete_field",
+			"key": "name_of_field"
+		}
+	],
+	"move_tag_to_meta_if": [
+		{
+			"if" : "condition_when_to_move_tag_to_meta_info_including_its_value",
+			"key": "name_of_tag",
+			"value": "name_of_meta_info"
+		}
+	],
+	"move_tag_to_field_if": [
+		{
+			"if" : "condition_when_to_move_tag_to_fields_including_its_value",
+			"key": "name_of_tag",
+			"value": "name_of_field"
+		}
+	],
+	"move_meta_to_tag_if": [
+		{
+			"if" : "condition_when_to_move_meta_info_to_tags_including_its_value",
+			"key": "name_of_meta_info",
+			"value": "name_of_tag"
+		}
+	],
+	"move_meta_to_field_if": [
+		{
+			"if" : "condition_when_to_move_meta_info_to_fields_including_its_value",
+			"key": "name_of_tag",
+			"value": "name_of_meta_info"
+		}
+	],
+	"move_field_to_tag_if": [
+		{
+			"if" : "condition_when_to_move_field_to_tags_including_its_stringified_value",
+			"key": "name_of_field",
+			"value": "name_of_tag"
+		}
+	],
+	"move_field_to_meta_if": [
+		{
+			"if" : "condition_when_to_move_field_to_meta_info_including_its_stringified_value",
+			"key": "name_of_field",
+			"value": "name_of_meta_info"
+		}
+	],
+	"drop_by_message_type": [
+		"metric",
+		"event",
+		"log",
+		"control"
+	],
+	"change_unit_prefix": {
+		"name == 'metric_with_wrong_unit_prefix'" : "G",
+		"only_if_messagetype == 'metric'": "T"
+	},
+	"normalize_units": true,
+	"add_base_env": {
+		"MY_CONSTANT_FOR_CUSTOM_CONDITIONS": 1.0,
+		"output_value_for_test_metrics": 42.0,
+	},
+	"stage_order": [
+		"rename_messages_if",
+		"drop_messages"
+	]
+}
+```
+
+The options `change_unit_prefix` and `normalize_units` are only applied to CCMetrics. It is not possible to delete the field related to each message type as defined in [cc-specification](https://github.com/ClusterCockpit/cc-specifications/tree/master/interfaces/lineprotocol). In short:
+- CCMetrics always have to have a field named `value`
+- CCEvents always have to have a field named `event`
+- CCLogs always have to have a field named `log`
+- CCControl messages always have to have a field named `control`
+
+With `add_base_env`, one can specifiy mykey=myvalue pairs that can be used in conditions like `tag.type == mykey`.
+
+The order in which each message is processed, can be specified with the `stage_order` option. The stage names are the keys in the JSON configuration, thus `change_unit_prefix`, `move_field_to_meta_if`, etc. Stages can be listed multiple times.
+
+### Using the component
+In order to load the configuration from a `json.RawMessage`:
+```golang
+mp, err := NewMessageProcessor()
+if err != nil {
+	log.Error("failed to create new message processor")
+}
+mp.FromConfigJSON(configJson)
+```
+
+After initialization and adding the different operations, the `ProcessMessage()` function applies all operations and returns whether the message should be dropped.
+
+```golang
+m := lp.CCMetric{}
+
+x, err := mp.ProcessMessage(m)
+if err != nil {
+	// handle error
+}
+if x != nil {
+    // process x further
+} else {
+	// this message got dropped
+}
+```
+
+Single operations can be added and removed at runtime
+```golang
+type MessageProcessor interface {
+	// Functions to set the execution order of the processing stages
+	SetStages([]string) error
+	DefaultStages() []string
+	// Function to add variables to the base evaluation environment
+	AddBaseEnv(env map[string]interface{}) error
+	// Functions to add and remove rules
+	AddDropMessagesByName(name string) error
+	RemoveDropMessagesByName(name string)
+	AddDropMessagesByCondition(condition string) error
+	RemoveDropMessagesByCondition(condition string)
+	AddRenameMetricByCondition(condition string, name string) error
+	RemoveRenameMetricByCondition(condition string)
+	AddRenameMetricByName(from, to string) error
+	RemoveRenameMetricByName(from string)
+	SetNormalizeUnits(settings bool)
+	AddChangeUnitPrefix(condition string, prefix string) error
+	RemoveChangeUnitPrefix(condition string)
+	AddAddTagsByCondition(condition, key, value string) error
+	RemoveAddTagsByCondition(condition string)
+	AddDeleteTagsByCondition(condition, key, value string) error
+	RemoveDeleteTagsByCondition(condition string)
+	AddAddMetaByCondition(condition, key, value string) error
+	RemoveAddMetaByCondition(condition string)
+	AddDeleteMetaByCondition(condition, key, value string) error
+	RemoveDeleteMetaByCondition(condition string)
+	AddMoveTagToMeta(condition, key, value string) error
+	RemoveMoveTagToMeta(condition string)
+	AddMoveTagToFields(condition, key, value string) error
+	RemoveMoveTagToFields(condition string)
+	AddMoveMetaToTags(condition, key, value string) error
+	RemoveMoveMetaToTags(condition string)
+	AddMoveMetaToFields(condition, key, value string) error
+	RemoveMoveMetaToFields(condition string)
+	AddMoveFieldToTags(condition, key, value string) error
+	RemoveMoveFieldToTags(condition string)
+	AddMoveFieldToMeta(condition, key, value string) error
+	RemoveMoveFieldToMeta(condition string)
+	// Read in a JSON configuration
+	FromConfigJSON(config json.RawMessage) error
+	ProcessMessage(m lp2.CCMessage) (lp2.CCMessage, error)
+	// Processing functions for legacy CCMetric and current CCMessage
+	ProcessMetric(m lp.CCMetric) (lp2.CCMessage, error)
+}
+```
+
+
+### Syntax for evaluatable terms
+
+The message processor uses `gval` for evaluating the terms. It provides a basic set of operators like string comparison and arithmetic operations.
+
+Accessible for operations are
+- `name` of the message
+- `timestamp` or `time` of the message
+- `type`, `type-id` of the message (also `tag_type`, `tag_type-id` and `tag_typeid`)
+- `stype`, `stype-id` of the message (if message has theses tags, also `tag_stype`, `tag_stype-id` and `tag_stypeid`)
+- `value` for a CCMetric message (also `field_value`)
+- `event` for a CCEvent message (also `field_event`)
+- `control` for a CCControl message (also `field_control`)
+- `log` for a CCLog message (also `field_log`)
+- `messagetype` or `msgtype`. Possible values `event`, `metric`, `log` and `control`.
+
+Generally, all tags are accessible with `tag_<tagkey>`, `tags_<tagkey>` or `tags.<tagkey>`. Similarly for all fields with `field[s]?[_.]<fieldkey>`. For meta information `meta[_.]<metakey>` (there is no `metas[_.]<metakey>`).
+
+The [syntax of `expr`](https://expr-lang.org/docs/language-definition) is accepted with some additions:
+- Comparing strings: `==`, `!=`, `str matches regex` (use `%` instead of `\`!)
+- Combining conditions: `&&`, `||`
+- Comparing numbers: `==`, `!=`, `<`, `>`, `<=`, `>=`
+- Test lists: `<value> in <list>`
+- Topological tests: `tag_type-id in getCpuListOfType("socket", "1")` (test if the metric belongs to socket 1 in local node topology)
+
+Often the operations are written in JSON files for loading them at startup. In JSON, some characters are not allowed. Therefore, the term syntax reflects that:
+- use `''` instead of `""` for strings
+- for the regexes, use `%` instead of `\`
+
+
+For operations that should be applied on all messages, use the condition `true`.
+
+### Overhead
+
+The operations taking conditions are pre-processed, which is commonly the time consuming part but, of course, with each added operation, the time to process a message
+increases. Moreover, the processing creates a copy of the message.
+

pkg/messageProcessor/messageProcessor.go

@@ -0,0 +1,988 @@
+package messageprocessor
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+	"sync"
+
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lplegacy "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
+
+	"github.com/expr-lang/expr"
+	"github.com/expr-lang/expr/vm"
+)
+
+// Message processor add/delete tag/meta configuration
+type messageProcessorTagConfig struct {
+	Key       string `json:"key"`             // Tag name
+	Value     string `json:"value,omitempty"` // Tag value
+	Condition string `json:"if"`              // Condition for adding or removing corresponding tag
+}
+
+type messageProcessorConfig struct {
+	StageOrder       []string                    `json:"stage_order,omitempty"`          // List of stages to execute them in the specified order and to skip unrequired ones
+	DropMessages     []string                    `json:"drop_messages,omitempty"`        // List of metric names to drop. For fine-grained dropping use drop_messages_if
+	DropMessagesIf   []string                    `json:"drop_messages_if,omitempty"`     // List of evaluatable terms to drop messages
+	RenameMessages   map[string]string           `json:"rename_messages,omitempty"`      // Map of metric names to rename
+	RenameMessagesIf map[string]string           `json:"rename_messages_if,omitempty"`   // Map to rename metric name based on a condition
+	NormalizeUnits   bool                        `json:"normalize_units,omitempty"`      // Check unit meta flag and normalize it using cc-units
+	ChangeUnitPrefix map[string]string           `json:"change_unit_prefix,omitempty"`   // Add prefix that should be applied to the messages
+	AddTagsIf        []messageProcessorTagConfig `json:"add_tags_if,omitempty"`          // List of tags that are added when the condition is met
+	DelTagsIf        []messageProcessorTagConfig `json:"delete_tags_if,omitempty"`       // List of tags that are removed when the condition is met
+	AddMetaIf        []messageProcessorTagConfig `json:"add_meta_if,omitempty"`          // List of meta infos that are added when the condition is met
+	DelMetaIf        []messageProcessorTagConfig `json:"delete_meta_if,omitempty"`       // List of meta infos that are removed when the condition is met
+	AddFieldIf       []messageProcessorTagConfig `json:"add_field_if,omitempty"`         // List of fields that are added when the condition is met
+	DelFieldIf       []messageProcessorTagConfig `json:"delete_field_if,omitempty"`      // List of fields that are removed when the condition is met
+	DropByType       []string                    `json:"drop_by_message_type,omitempty"` // List of message types that should be dropped
+	MoveTagToMeta    []messageProcessorTagConfig `json:"move_tag_to_meta_if,omitempty"`
+	MoveTagToField   []messageProcessorTagConfig `json:"move_tag_to_field_if,omitempty"`
+	MoveMetaToTag    []messageProcessorTagConfig `json:"move_meta_to_tag_if,omitempty"`
+	MoveMetaToField  []messageProcessorTagConfig `json:"move_meta_to_field_if,omitempty"`
+	MoveFieldToTag   []messageProcessorTagConfig `json:"move_field_to_tag_if,omitempty"`
+	MoveFieldToMeta  []messageProcessorTagConfig `json:"move_field_to_meta_if,omitempty"`
+	AddBaseEnv       map[string]interface{}      `json:"add_base_env,omitempty"`
+}
+
+type messageProcessor struct {
+
+	// For thread-safety
+	mutex sync.RWMutex
+
+	// mapping contains all evalables as strings to gval.Evaluable
+	// because it is not possible to get the original string out of
+	// a gval.Evaluable
+	mapping map[string]*vm.Program
+
+	stages           []string                 // order of stage execution
+	dropMessages     map[string]struct{}      // internal lookup map
+	dropTypes        map[string]struct{}      // internal lookup map
+	dropMessagesIf   map[*vm.Program]struct{} // pre-processed dropMessagesIf
+	renameMessages   map[string]string        // internal lookup map
+	renameMessagesIf map[*vm.Program]string   // pre-processed RenameMessagesIf
+	changeUnitPrefix map[*vm.Program]string   // pre-processed ChangeUnitPrefix
+	normalizeUnits   bool
+	addTagsIf        map[*vm.Program]messageProcessorTagConfig // pre-processed AddTagsIf
+	deleteTagsIf     map[*vm.Program]messageProcessorTagConfig // pre-processed DelTagsIf
+	addMetaIf        map[*vm.Program]messageProcessorTagConfig // pre-processed AddMetaIf
+	deleteMetaIf     map[*vm.Program]messageProcessorTagConfig // pre-processed DelMetaIf
+	addFieldIf       map[*vm.Program]messageProcessorTagConfig // pre-processed AddFieldIf
+	deleteFieldIf    map[*vm.Program]messageProcessorTagConfig // pre-processed DelFieldIf
+	moveTagToMeta    map[*vm.Program]messageProcessorTagConfig // pre-processed MoveTagToMeta
+	moveTagToField   map[*vm.Program]messageProcessorTagConfig // pre-processed MoveTagToField
+	moveMetaToTag    map[*vm.Program]messageProcessorTagConfig // pre-processed MoveMetaToTag
+	moveMetaToField  map[*vm.Program]messageProcessorTagConfig // pre-processed MoveMetaToField
+	moveFieldToTag   map[*vm.Program]messageProcessorTagConfig // pre-processed MoveFieldToTag
+	moveFieldToMeta  map[*vm.Program]messageProcessorTagConfig // pre-processed MoveFieldToMeta
+}
+
+type MessageProcessor interface {
+	// Functions to set the execution order of the processing stages
+	SetStages([]string) error
+	DefaultStages() []string
+	// Function to add variables to the base evaluation environment
+	AddBaseEnv(env map[string]interface{}) error
+	// Functions to add and remove rules
+	AddDropMessagesByName(name string) error
+	RemoveDropMessagesByName(name string)
+	AddDropMessagesByCondition(condition string) error
+	RemoveDropMessagesByCondition(condition string)
+	AddRenameMetricByCondition(condition string, name string) error
+	RemoveRenameMetricByCondition(condition string)
+	AddRenameMetricByName(from, to string) error
+	RemoveRenameMetricByName(from string)
+	SetNormalizeUnits(settings bool)
+	AddChangeUnitPrefix(condition string, prefix string) error
+	RemoveChangeUnitPrefix(condition string)
+	AddAddTagsByCondition(condition, key, value string) error
+	RemoveAddTagsByCondition(condition string)
+	AddDeleteTagsByCondition(condition, key, value string) error
+	RemoveDeleteTagsByCondition(condition string)
+	AddAddMetaByCondition(condition, key, value string) error
+	RemoveAddMetaByCondition(condition string)
+	AddDeleteMetaByCondition(condition, key, value string) error
+	RemoveDeleteMetaByCondition(condition string)
+	AddMoveTagToMeta(condition, key, value string) error
+	RemoveMoveTagToMeta(condition string)
+	AddMoveTagToFields(condition, key, value string) error
+	RemoveMoveTagToFields(condition string)
+	AddMoveMetaToTags(condition, key, value string) error
+	RemoveMoveMetaToTags(condition string)
+	AddMoveMetaToFields(condition, key, value string) error
+	RemoveMoveMetaToFields(condition string)
+	AddMoveFieldToTags(condition, key, value string) error
+	RemoveMoveFieldToTags(condition string)
+	AddMoveFieldToMeta(condition, key, value string) error
+	RemoveMoveFieldToMeta(condition string)
+	// Read in a JSON configuration
+	FromConfigJSON(config json.RawMessage) error
+	// Processing functions for legacy CCMetric and current CCMessage
+	ProcessMetric(m lplegacy.CCMetric) (lp.CCMessage, error)
+	ProcessMessage(m lp.CCMessage) (lp.CCMessage, error)
+	//EvalToBool(condition string, parameters map[string]interface{}) (bool, error)
+	//EvalToFloat64(condition string, parameters map[string]interface{}) (float64, error)
+	//EvalToString(condition string, parameters map[string]interface{}) (string, error)
+}
+
+const (
+	STAGENAME_DROP_BY_NAME       string = "drop_by_name"
+	STAGENAME_DROP_BY_TYPE       string = "drop_by_type"
+	STAGENAME_DROP_IF            string = "drop_if"
+	STAGENAME_ADD_TAG            string = "add_tag"
+	STAGENAME_DELETE_TAG         string = "delete_tag"
+	STAGENAME_MOVE_TAG_META      string = "move_tag_to_meta"
+	STAGENAME_MOVE_TAG_FIELD     string = "move_tag_to_fields"
+	STAGENAME_ADD_META           string = "add_meta"
+	STAGENAME_DELETE_META        string = "delete_meta"
+	STAGENAME_MOVE_META_TAG      string = "move_meta_to_tags"
+	STAGENAME_MOVE_META_FIELD    string = "move_meta_to_fields"
+	STAGENAME_ADD_FIELD          string = "add_field"
+	STAGENAME_DELETE_FIELD       string = "delete_field"
+	STAGENAME_MOVE_FIELD_TAG     string = "move_field_to_tags"
+	STAGENAME_MOVE_FIELD_META    string = "move_field_to_meta"
+	STAGENAME_RENAME_BY_NAME     string = "rename"
+	STAGENAME_RENAME_IF          string = "rename_if"
+	STAGENAME_CHANGE_UNIT_PREFIX string = "change_unit_prefix"
+	STAGENAME_NORMALIZE_UNIT     string = "normalize_unit"
+)
+
+var StageNames = []string{
+	STAGENAME_DROP_BY_NAME,
+	STAGENAME_DROP_BY_TYPE,
+	STAGENAME_DROP_IF,
+	STAGENAME_ADD_TAG,
+	STAGENAME_DELETE_TAG,
+	STAGENAME_MOVE_TAG_META,
+	STAGENAME_MOVE_TAG_FIELD,
+	STAGENAME_ADD_META,
+	STAGENAME_DELETE_META,
+	STAGENAME_MOVE_META_TAG,
+	STAGENAME_MOVE_META_FIELD,
+	STAGENAME_ADD_FIELD,
+	STAGENAME_DELETE_FIELD,
+	STAGENAME_MOVE_FIELD_TAG,
+	STAGENAME_MOVE_FIELD_META,
+	STAGENAME_RENAME_BY_NAME,
+	STAGENAME_RENAME_IF,
+	STAGENAME_CHANGE_UNIT_PREFIX,
+	STAGENAME_NORMALIZE_UNIT,
+}
+
+var paramMapPool = sync.Pool{
+	New: func() any {
+		return make(map[string]interface{})
+	},
+}
+
+func sanitizeExprString(key string) string {
+	return strings.ReplaceAll(key, "type-id", "typeid")
+}
+
+func getParamMap(point lp.CCMetric) map[string]interface{} {
+	params := paramMapPool.Get().(map[string]interface{})
+	params["message"] = point
+	params["msg"] = point
+	params["name"] = point.Name()
+	params["timestamp"] = point.Time().Unix()
+	params["time"] = params["timestamp"]
+
+	fields := paramMapPool.Get().(map[string]interface{})
+	for key, value := range point.Fields() {
+		fields[key] = value
+		switch key {
+		case "value":
+			params["messagetype"] = "metric"
+			params["value"] = value
+			params["metric"] = value
+		case "event":
+			params["messagetype"] = "event"
+			params["event"] = value
+		case "control":
+			params["messagetype"] = "control"
+			params["control"] = value
+		case "log":
+			params["messagetype"] = "log"
+			params["log"] = value
+		default:
+			params["messagetype"] = "unknown"
+		}
+	}
+	params["msgtype"] = params["messagetype"]
+	params["fields"] = fields
+	params["field"] = fields
+	tags := paramMapPool.Get().(map[string]interface{})
+	for key, value := range point.Tags() {
+		tags[sanitizeExprString(key)] = value
+	}
+	params["tags"] = tags
+	params["tag"] = tags
+	meta := paramMapPool.Get().(map[string]interface{})
+	for key, value := range point.Meta() {
+		meta[sanitizeExprString(key)] = value
+	}
+	params["meta"] = meta
+	return params
+}
+
+var baseenv = map[string]interface{}{
+	"name":        "",
+	"messagetype": "unknown",
+	"msgtype":     "unknown",
+	"tag": map[string]interface{}{
+		"type":     "unknown",
+		"typeid":   "0",
+		"stype":    "unknown",
+		"stypeid":  "0",
+		"hostname": "localhost",
+		"cluster":  "nocluster",
+	},
+	"tags": map[string]interface{}{
+		"type":     "unknown",
+		"typeid":   "0",
+		"stype":    "unknown",
+		"stypeid":  "0",
+		"hostname": "localhost",
+		"cluster":  "nocluster",
+	},
+	"meta": map[string]interface{}{
+		"unit":   "invalid",
+		"source": "unknown",
+	},
+	"fields": map[string]interface{}{
+		"value":   0,
+		"event":   "",
+		"control": "",
+		"log":     "",
+	},
+	"field": map[string]interface{}{
+		"value":   0,
+		"event":   "",
+		"control": "",
+		"log":     "",
+	},
+	"timestamp": 1234567890,
+	"msg":       lp.EmptyMessage(),
+	"message":   lp.EmptyMessage(),
+}
+
+func addBaseEnvWalker(values map[string]interface{}) map[string]interface{} {
+	out := make(map[string]interface{})
+	for k, v := range values {
+		switch value := v.(type) {
+		case int, int32, int64, uint, uint32, uint64, string, float32, float64:
+			out[k] = value
+		case map[string]interface{}:
+			if _, ok := baseenv[k]; !ok {
+				out[k] = addBaseEnvWalker(value)
+			}
+		}
+	}
+	return out
+}
+
+func (mp *messageProcessor) AddBaseEnv(env map[string]interface{}) error {
+	for k, v := range env {
+		switch value := v.(type) {
+		case int, int32, int64, uint, uint32, uint64, string, float32, float64:
+			baseenv[k] = value
+		case map[string]interface{}:
+			if _, ok := baseenv[k]; !ok {
+				baseenv[k] = addBaseEnvWalker(value)
+			}
+		}
+	}
+	return nil
+}
+
+func (mp *messageProcessor) init() error {
+	mp.stages = make([]string, 0)
+	mp.mapping = make(map[string]*vm.Program)
+	mp.dropMessages = make(map[string]struct{})
+	mp.dropTypes = make(map[string]struct{})
+	mp.dropMessagesIf = make(map[*vm.Program]struct{})
+	mp.renameMessages = make(map[string]string)
+	mp.renameMessagesIf = make(map[*vm.Program]string)
+	mp.changeUnitPrefix = make(map[*vm.Program]string)
+	mp.addTagsIf = make(map[*vm.Program]messageProcessorTagConfig)
+	mp.addMetaIf = make(map[*vm.Program]messageProcessorTagConfig)
+	mp.addFieldIf = make(map[*vm.Program]messageProcessorTagConfig)
+	mp.deleteTagsIf = make(map[*vm.Program]messageProcessorTagConfig)
+	mp.deleteMetaIf = make(map[*vm.Program]messageProcessorTagConfig)
+	mp.deleteFieldIf = make(map[*vm.Program]messageProcessorTagConfig)
+	mp.moveFieldToMeta = make(map[*vm.Program]messageProcessorTagConfig)
+	mp.moveFieldToTag = make(map[*vm.Program]messageProcessorTagConfig)
+	mp.moveMetaToField = make(map[*vm.Program]messageProcessorTagConfig)
+	mp.moveMetaToTag = make(map[*vm.Program]messageProcessorTagConfig)
+	mp.moveTagToField = make(map[*vm.Program]messageProcessorTagConfig)
+	mp.moveTagToMeta = make(map[*vm.Program]messageProcessorTagConfig)
+	mp.normalizeUnits = false
+	return nil
+}
+
+func (mp *messageProcessor) AddDropMessagesByName(name string) error {
+	mp.mutex.Lock()
+	if _, ok := mp.dropMessages[name]; !ok {
+		mp.dropMessages[name] = struct{}{}
+	}
+	mp.mutex.Unlock()
+	return nil
+}
+
+func (mp *messageProcessor) RemoveDropMessagesByName(name string) {
+	mp.mutex.Lock()
+	delete(mp.dropMessages, name)
+	mp.mutex.Unlock()
+}
+
+func (mp *messageProcessor) AddDropMessagesByType(typestring string) error {
+	valid := []string{"metric", "event", "control", "log"}
+	isValid := false
+	for _, t := range valid {
+		if t == typestring {
+			isValid = true
+			break
+		}
+	}
+	if isValid {
+		mp.mutex.Lock()
+		if _, ok := mp.dropTypes[typestring]; !ok {
+			cclog.ComponentDebug("MessageProcessor", "Adding type", typestring, "for dropping")
+			mp.dropTypes[typestring] = struct{}{}
+		}
+		mp.mutex.Unlock()
+	} else {
+		return fmt.Errorf("invalid message type %s", typestring)
+	}
+	return nil
+}
+
+func (mp *messageProcessor) RemoveDropMessagesByType(typestring string) {
+	mp.mutex.Lock()
+	delete(mp.dropTypes, typestring)
+	mp.mutex.Unlock()
+}
+
+func (mp *messageProcessor) addTagConfig(condition, key, value string, config *map[*vm.Program]messageProcessorTagConfig) error {
+	var err error
+	evaluable, err := expr.Compile(sanitizeExprString(condition), expr.Env(baseenv), expr.AsBool())
+	if err != nil {
+		return fmt.Errorf("failed to create condition evaluable of '%s': %v", condition, err.Error())
+	}
+	mp.mutex.Lock()
+	if _, ok := (*config)[evaluable]; !ok {
+		mp.mapping[condition] = evaluable
+		(*config)[evaluable] = messageProcessorTagConfig{
+			Condition: condition,
+			Key:       key,
+			Value:     value,
+		}
+	}
+	mp.mutex.Unlock()
+	return nil
+}
+
+func (mp *messageProcessor) removeTagConfig(condition string, config *map[*vm.Program]messageProcessorTagConfig) {
+	mp.mutex.Lock()
+	if e, ok := mp.mapping[condition]; ok {
+		delete(mp.mapping, condition)
+		delete(*config, e)
+	}
+	mp.mutex.Unlock()
+}
+
+func (mp *messageProcessor) AddAddTagsByCondition(condition, key, value string) error {
+	return mp.addTagConfig(condition, key, value, &mp.addTagsIf)
+}
+
+func (mp *messageProcessor) RemoveAddTagsByCondition(condition string) {
+	mp.removeTagConfig(condition, &mp.addTagsIf)
+}
+
+func (mp *messageProcessor) AddDeleteTagsByCondition(condition, key, value string) error {
+	return mp.addTagConfig(condition, key, value, &mp.deleteTagsIf)
+}
+
+func (mp *messageProcessor) RemoveDeleteTagsByCondition(condition string) {
+	mp.removeTagConfig(condition, &mp.deleteTagsIf)
+}
+
+func (mp *messageProcessor) AddAddMetaByCondition(condition, key, value string) error {
+	return mp.addTagConfig(condition, key, value, &mp.addMetaIf)
+}
+
+func (mp *messageProcessor) RemoveAddMetaByCondition(condition string) {
+	mp.removeTagConfig(condition, &mp.addMetaIf)
+}
+
+func (mp *messageProcessor) AddDeleteMetaByCondition(condition, key, value string) error {
+	return mp.addTagConfig(condition, key, value, &mp.deleteMetaIf)
+}
+
+func (mp *messageProcessor) RemoveDeleteMetaByCondition(condition string) {
+	mp.removeTagConfig(condition, &mp.deleteMetaIf)
+}
+
+func (mp *messageProcessor) AddAddFieldByCondition(condition, key, value string) error {
+	return mp.addTagConfig(condition, key, value, &mp.addFieldIf)
+}
+
+func (mp *messageProcessor) RemoveAddFieldByCondition(condition string) {
+	mp.removeTagConfig(condition, &mp.addFieldIf)
+}
+
+func (mp *messageProcessor) AddDeleteFieldByCondition(condition, key, value string) error {
+	return mp.addTagConfig(condition, key, value, &mp.deleteFieldIf)
+}
+
+func (mp *messageProcessor) RemoveDeleteFieldByCondition(condition string) {
+	mp.removeTagConfig(condition, &mp.deleteFieldIf)
+}
+
+func (mp *messageProcessor) AddDropMessagesByCondition(condition string) error {
+
+	var err error
+	evaluable, err := expr.Compile(sanitizeExprString(condition), expr.Env(baseenv), expr.AsBool())
+	if err != nil {
+		return fmt.Errorf("failed to create condition evaluable of '%s': %v", condition, err.Error())
+	}
+	mp.mutex.Lock()
+	if _, ok := mp.dropMessagesIf[evaluable]; !ok {
+		mp.mapping[condition] = evaluable
+		mp.dropMessagesIf[evaluable] = struct{}{}
+	}
+	mp.mutex.Unlock()
+	return nil
+}
+
+func (mp *messageProcessor) RemoveDropMessagesByCondition(condition string) {
+	mp.mutex.Lock()
+	if e, ok := mp.mapping[condition]; ok {
+		delete(mp.mapping, condition)
+		delete(mp.dropMessagesIf, e)
+	}
+	mp.mutex.Unlock()
+}
+
+func (mp *messageProcessor) AddRenameMetricByCondition(condition string, name string) error {
+
+	var err error
+	evaluable, err := expr.Compile(sanitizeExprString(condition), expr.Env(baseenv), expr.AsBool())
+	if err != nil {
+		return fmt.Errorf("failed to create condition evaluable of '%s': %v", condition, err.Error())
+	}
+	mp.mutex.Lock()
+	if _, ok := mp.renameMessagesIf[evaluable]; !ok {
+		mp.mapping[condition] = evaluable
+		mp.renameMessagesIf[evaluable] = name
+	} else {
+		mp.renameMessagesIf[evaluable] = name
+	}
+	mp.mutex.Unlock()
+	return nil
+}
+
+func (mp *messageProcessor) RemoveRenameMetricByCondition(condition string) {
+	mp.mutex.Lock()
+	if e, ok := mp.mapping[condition]; ok {
+		delete(mp.mapping, condition)
+		delete(mp.renameMessagesIf, e)
+	}
+	mp.mutex.Unlock()
+}
+
+func (mp *messageProcessor) SetNormalizeUnits(setting bool) {
+	mp.normalizeUnits = setting
+}
+
+func (mp *messageProcessor) AddChangeUnitPrefix(condition string, prefix string) error {
+
+	var err error
+	evaluable, err := expr.Compile(sanitizeExprString(condition), expr.Env(baseenv), expr.AsBool())
+	if err != nil {
+		return fmt.Errorf("failed to create condition evaluable of '%s': %v", condition, err.Error())
+	}
+	mp.mutex.Lock()
+	if _, ok := mp.changeUnitPrefix[evaluable]; !ok {
+		mp.mapping[condition] = evaluable
+		mp.changeUnitPrefix[evaluable] = prefix
+	} else {
+		mp.changeUnitPrefix[evaluable] = prefix
+	}
+	mp.mutex.Unlock()
+	return nil
+}
+
+func (mp *messageProcessor) RemoveChangeUnitPrefix(condition string) {
+	mp.mutex.Lock()
+	if e, ok := mp.mapping[condition]; ok {
+		delete(mp.mapping, condition)
+		delete(mp.changeUnitPrefix, e)
+	}
+	mp.mutex.Unlock()
+}
+
+func (mp *messageProcessor) AddRenameMetricByName(from, to string) error {
+	mp.mutex.Lock()
+	if _, ok := mp.renameMessages[from]; !ok {
+		mp.renameMessages[from] = to
+	}
+	mp.mutex.Unlock()
+	return nil
+}
+
+func (mp *messageProcessor) RemoveRenameMetricByName(from string) {
+	mp.mutex.Lock()
+	delete(mp.renameMessages, from)
+	mp.mutex.Unlock()
+}
+
+func (mp *messageProcessor) AddMoveTagToMeta(condition, key, value string) error {
+	return mp.addTagConfig(condition, key, value, &mp.moveTagToMeta)
+}
+
+func (mp *messageProcessor) RemoveMoveTagToMeta(condition string) {
+	mp.removeTagConfig(condition, &mp.moveTagToMeta)
+}
+
+func (mp *messageProcessor) AddMoveTagToFields(condition, key, value string) error {
+	return mp.addTagConfig(condition, key, value, &mp.moveTagToField)
+}
+
+func (mp *messageProcessor) RemoveMoveTagToFields(condition string) {
+	mp.removeTagConfig(condition, &mp.moveTagToField)
+}
+
+func (mp *messageProcessor) AddMoveMetaToTags(condition, key, value string) error {
+	return mp.addTagConfig(condition, key, value, &mp.moveMetaToTag)
+}
+
+func (mp *messageProcessor) RemoveMoveMetaToTags(condition string) {
+	mp.removeTagConfig(condition, &mp.moveMetaToTag)
+}
+
+func (mp *messageProcessor) AddMoveMetaToFields(condition, key, value string) error {
+	return mp.addTagConfig(condition, key, value, &mp.moveMetaToField)
+}
+
+func (mp *messageProcessor) RemoveMoveMetaToFields(condition string) {
+	mp.removeTagConfig(condition, &mp.moveMetaToField)
+}
+
+func (mp *messageProcessor) AddMoveFieldToTags(condition, key, value string) error {
+	return mp.addTagConfig(condition, key, value, &mp.moveFieldToTag)
+}
+
+func (mp *messageProcessor) RemoveMoveFieldToTags(condition string) {
+	mp.removeTagConfig(condition, &mp.moveFieldToTag)
+}
+
+func (mp *messageProcessor) AddMoveFieldToMeta(condition, key, value string) error {
+	return mp.addTagConfig(condition, key, value, &mp.moveFieldToMeta)
+}
+
+func (mp *messageProcessor) RemoveMoveFieldToMeta(condition string) {
+	mp.removeTagConfig(condition, &mp.moveFieldToMeta)
+}
+
+func (mp *messageProcessor) SetStages(stages []string) error {
+	newstages := make([]string, 0)
+	if len(stages) == 0 {
+		mp.mutex.Lock()
+		mp.stages = newstages
+		mp.mutex.Unlock()
+		return nil
+	}
+	for i, s := range stages {
+		valid := false
+		for _, v := range StageNames {
+			if s == v {
+				valid = true
+			}
+		}
+		if valid {
+			newstages = append(newstages, s)
+		} else {
+			return fmt.Errorf("invalid stage %s at index %d", s, i)
+		}
+	}
+	mp.mutex.Lock()
+	mp.stages = newstages
+	mp.mutex.Unlock()
+	return nil
+}
+
+func (mp *messageProcessor) DefaultStages() []string {
+	return StageNames
+}
+
+func (mp *messageProcessor) FromConfigJSON(config json.RawMessage) error {
+	var c messageProcessorConfig
+
+	err := json.Unmarshal(config, &c)
+	if err != nil {
+		return fmt.Errorf("failed to process config JSON: %v", err.Error())
+	}
+
+	if len(c.StageOrder) > 0 {
+		err = mp.SetStages(c.StageOrder)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	} else {
+		err = mp.SetStages(mp.DefaultStages())
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+
+	for _, m := range c.DropMessages {
+		err = mp.AddDropMessagesByName(m)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, m := range c.DropByType {
+		err = mp.AddDropMessagesByType(m)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, m := range c.DropMessagesIf {
+		err = mp.AddDropMessagesByCondition(m)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for k, v := range c.RenameMessagesIf {
+		err = mp.AddRenameMetricByCondition(k, v)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for k, v := range c.RenameMessages {
+		err = mp.AddRenameMetricByName(k, v)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for k, v := range c.ChangeUnitPrefix {
+		err = mp.AddChangeUnitPrefix(k, v)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, c := range c.AddTagsIf {
+		err = mp.AddAddTagsByCondition(c.Condition, c.Key, c.Value)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, c := range c.AddMetaIf {
+		err = mp.AddAddMetaByCondition(c.Condition, c.Key, c.Value)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, c := range c.AddFieldIf {
+		err = mp.AddAddFieldByCondition(c.Condition, c.Key, c.Value)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, c := range c.DelTagsIf {
+		err = mp.AddDeleteTagsByCondition(c.Condition, c.Key, c.Value)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, c := range c.DelMetaIf {
+		err = mp.AddDeleteMetaByCondition(c.Condition, c.Key, c.Value)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, c := range c.DelFieldIf {
+		err = mp.AddDeleteFieldByCondition(c.Condition, c.Key, c.Value)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, c := range c.MoveTagToMeta {
+		err = mp.AddMoveTagToMeta(c.Condition, c.Key, c.Value)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, c := range c.MoveTagToField {
+		err = mp.AddMoveTagToFields(c.Condition, c.Key, c.Value)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, c := range c.MoveMetaToTag {
+		err = mp.AddMoveMetaToTags(c.Condition, c.Key, c.Value)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, c := range c.MoveMetaToField {
+		err = mp.AddMoveMetaToFields(c.Condition, c.Key, c.Value)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, c := range c.MoveFieldToTag {
+		err = mp.AddMoveFieldToTags(c.Condition, c.Key, c.Value)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, c := range c.MoveFieldToMeta {
+		err = mp.AddMoveFieldToMeta(c.Condition, c.Key, c.Value)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	for _, m := range c.DropByType {
+		err = mp.AddDropMessagesByType(m)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	if len(c.AddBaseEnv) > 0 {
+		err = mp.AddBaseEnv(c.AddBaseEnv)
+		if err != nil {
+			return fmt.Errorf("failed to process config JSON: %v", err.Error())
+		}
+	}
+	mp.SetNormalizeUnits(c.NormalizeUnits)
+	return nil
+}
+
+func (mp *messageProcessor) ProcessMetric(metric lplegacy.CCMetric) (lp.CCMessage, error) {
+	m, err := lp.NewMessage(
+		metric.Name(),
+		metric.Tags(),
+		metric.Meta(),
+		metric.Fields(),
+		metric.Time(),
+	)
+	if err != nil {
+		return m, fmt.Errorf("failed to parse metric to message: %v", err.Error())
+	}
+	return mp.ProcessMessage(m)
+
+}
+
+func (mp *messageProcessor) ProcessMessage(m lp.CCMessage) (lp.CCMessage, error) {
+	var err error = nil
+	var out lp.CCMessage = lp.FromMessage(m)
+
+	name := out.Name()
+
+	if len(mp.stages) == 0 {
+		mp.SetStages(mp.DefaultStages())
+	}
+
+	mp.mutex.RLock()
+	defer mp.mutex.RUnlock()
+
+	params := getParamMap(out)
+
+	defer func() {
+		params["field"] = nil
+		params["tag"] = nil
+		paramMapPool.Put(params["fields"])
+		paramMapPool.Put(params["tags"])
+		paramMapPool.Put(params["meta"])
+		paramMapPool.Put(params)
+	}()
+
+	for _, s := range mp.stages {
+		switch s {
+		case STAGENAME_DROP_BY_NAME:
+			if len(mp.dropMessages) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Dropping by message name ", name)
+				if _, ok := mp.dropMessages[name]; ok {
+					//cclog.ComponentDebug("MessageProcessor", "Drop")
+					return nil, nil
+				}
+			}
+		case STAGENAME_DROP_BY_TYPE:
+			if len(mp.dropTypes) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Dropping by message type")
+				if _, ok := mp.dropTypes[params["messagetype"].(string)]; ok {
+					//cclog.ComponentDebug("MessageProcessor", "Drop")
+					return nil, nil
+				}
+			}
+		case STAGENAME_DROP_IF:
+			if len(mp.dropMessagesIf) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Dropping by condition")
+				drop, err := dropMessagesIf(&params, &mp.dropMessagesIf)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+				if drop {
+					//cclog.ComponentDebug("MessageProcessor", "Drop")
+					return nil, nil
+				}
+			}
+		case STAGENAME_RENAME_BY_NAME:
+			if len(mp.renameMessages) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Renaming by name match")
+				if newname, ok := mp.renameMessages[name]; ok {
+					//cclog.ComponentDebug("MessageProcessor", "Rename to", newname)
+					out.SetName(newname)
+					//cclog.ComponentDebug("MessageProcessor", "Add old name as 'oldname' to meta", name)
+					out.AddMeta("oldname", name)
+				}
+			}
+		case STAGENAME_RENAME_IF:
+			if len(mp.renameMessagesIf) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Renaming by condition")
+				_, err := renameMessagesIf(out, &params, &mp.renameMessagesIf)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+			}
+		case STAGENAME_ADD_TAG:
+			if len(mp.addTagsIf) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Adding tags")
+				_, err = addTagIf(out, &params, &mp.addTagsIf)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+			}
+		case STAGENAME_DELETE_TAG:
+			if len(mp.deleteTagsIf) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Delete tags")
+				_, err = deleteTagIf(out, &params, &mp.deleteTagsIf)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+			}
+		case STAGENAME_ADD_META:
+			if len(mp.addMetaIf) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Adding meta information")
+				_, err = addMetaIf(out, &params, &mp.addMetaIf)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+			}
+		case STAGENAME_DELETE_META:
+			if len(mp.deleteMetaIf) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Delete meta information")
+				_, err = deleteMetaIf(out, &params, &mp.deleteMetaIf)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+			}
+		case STAGENAME_ADD_FIELD:
+			if len(mp.addFieldIf) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Adding fields")
+				_, err = addFieldIf(out, &params, &mp.addFieldIf)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+			}
+		case STAGENAME_DELETE_FIELD:
+			if len(mp.deleteFieldIf) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Delete fields")
+				_, err = deleteFieldIf(out, &params, &mp.deleteFieldIf)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+			}
+		case STAGENAME_MOVE_TAG_META:
+			if len(mp.moveTagToMeta) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Move tag to meta")
+				_, err := moveTagToMeta(out, &params, &mp.moveTagToMeta)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+			}
+		case STAGENAME_MOVE_TAG_FIELD:
+			if len(mp.moveTagToField) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Move tag to fields")
+				_, err := moveTagToField(out, &params, &mp.moveTagToField)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+			}
+		case STAGENAME_MOVE_META_TAG:
+			if len(mp.moveMetaToTag) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Move meta to tags")
+				_, err := moveMetaToTag(out, &params, &mp.moveMetaToTag)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+			}
+		case STAGENAME_MOVE_META_FIELD:
+			if len(mp.moveMetaToField) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Move meta to fields")
+				_, err := moveMetaToField(out, &params, &mp.moveMetaToField)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+			}
+		case STAGENAME_MOVE_FIELD_META:
+			if len(mp.moveFieldToMeta) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Move field to meta")
+				_, err := moveFieldToMeta(out, &params, &mp.moveFieldToMeta)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+			}
+		case STAGENAME_MOVE_FIELD_TAG:
+			if len(mp.moveFieldToTag) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Move field to tags")
+				_, err := moveFieldToTag(out, &params, &mp.moveFieldToTag)
+				if err != nil {
+					return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+				}
+			}
+		case STAGENAME_NORMALIZE_UNIT:
+			if mp.normalizeUnits {
+				//cclog.ComponentDebug("MessageProcessor", "Normalize units")
+				if lp.IsMetric(out) {
+					_, err := normalizeUnits(out)
+					if err != nil {
+						return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+					}
+				} else {
+					cclog.ComponentDebug("MessageProcessor", "skipped, no metric")
+				}
+			}
+
+		case STAGENAME_CHANGE_UNIT_PREFIX:
+			if len(mp.changeUnitPrefix) > 0 {
+				//cclog.ComponentDebug("MessageProcessor", "Change unit prefix")
+				if lp.IsMetric(out) {
+					_, err := changeUnitPrefix(out, &params, &mp.changeUnitPrefix)
+					if err != nil {
+						return out, fmt.Errorf("failed to evaluate: %v", err.Error())
+					}
+				} else {
+					cclog.ComponentDebug("MessageProcessor", "skipped, no metric")
+				}
+			}
+		}
+
+	}
+
+	return out, nil
+}
+
+// Get a new instace of a message processor.
+func NewMessageProcessor() (MessageProcessor, error) {
+	mp := new(messageProcessor)
+	err := mp.init()
+	if err != nil {
+		err := fmt.Errorf("failed to create MessageProcessor: %v", err.Error())
+		cclog.ComponentError("MessageProcessor", err.Error())
+		return nil, err
+	}
+	return mp, nil
+}

pkg/messageProcessor/messageProcessorFuncs.go

@@ -0,0 +1,262 @@
+package messageprocessor
+
+import (
+	"errors"
+	"fmt"
+
+	lp2 "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	units "github.com/ClusterCockpit/cc-units"
+	"github.com/expr-lang/expr"
+	"github.com/expr-lang/expr/vm"
+)
+
+type MessageLocation int
+
+const (
+	MESSAGE_LOCATION_TAGS MessageLocation = iota
+	MESSAGE_LOCATION_META
+	MESSAGE_LOCATION_FIELDS
+)
+
+// Abstract function to move entries from one location to another
+func moveInMessage(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig, from, to MessageLocation) (bool, error) {
+	for d, data := range *checks {
+		value, err := expr.Run(d, *params)
+		if err != nil {
+			return false, fmt.Errorf("failed to evaluate: %v", err.Error())
+		}
+		//cclog.ComponentDebug("MessageProcessor", "Move from", from, "to", to)
+		if value.(bool) {
+			var v string
+			var ok bool = false
+			switch from {
+			case MESSAGE_LOCATION_TAGS:
+				//cclog.ComponentDebug("MessageProcessor", "Getting tag key", data.Key)
+				v, ok = message.GetTag(data.Key)
+			case MESSAGE_LOCATION_META:
+				//cclog.ComponentDebug("MessageProcessor", "Getting meta key", data.Key)
+				//cclog.ComponentDebug("MessageProcessor", message.Meta())
+				v, ok = message.GetMeta(data.Key)
+			case MESSAGE_LOCATION_FIELDS:
+				var x interface{}
+				//cclog.ComponentDebug("MessageProcessor", "Getting field key", data.Key)
+				x, ok = message.GetField(data.Key)
+				v = fmt.Sprintf("%v", x)
+			}
+			if ok {
+				switch from {
+				case MESSAGE_LOCATION_TAGS:
+					//cclog.ComponentDebug("MessageProcessor", "Removing tag key", data.Key)
+					message.RemoveTag(data.Key)
+				case MESSAGE_LOCATION_META:
+					//cclog.ComponentDebug("MessageProcessor", "Removing meta key", data.Key)
+					message.RemoveMeta(data.Key)
+				case MESSAGE_LOCATION_FIELDS:
+					//cclog.ComponentDebug("MessageProcessor", "Removing field key", data.Key)
+					message.RemoveField(data.Key)
+				}
+				switch to {
+				case MESSAGE_LOCATION_TAGS:
+					//cclog.ComponentDebug("MessageProcessor", "Adding tag", data.Value, "->", v)
+					message.AddTag(data.Value, v)
+				case MESSAGE_LOCATION_META:
+					//cclog.ComponentDebug("MessageProcessor", "Adding meta", data.Value, "->", v)
+					message.AddMeta(data.Value, v)
+				case MESSAGE_LOCATION_FIELDS:
+					//cclog.ComponentDebug("MessageProcessor", "Adding field", data.Value, "->", v)
+					message.AddField(data.Value, v)
+				}
+			}
+		}
+	}
+	return false, nil
+}
+
+func deleteIf(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig, location MessageLocation) (bool, error) {
+	for d, data := range *checks {
+		value, err := expr.Run(d, *params)
+		if err != nil {
+			return true, fmt.Errorf("failed to evaluate: %v", err.Error())
+		}
+		if value.(bool) {
+			switch location {
+			case MESSAGE_LOCATION_FIELDS:
+				switch data.Key {
+				case "value", "event", "log", "control":
+					return false, errors.New("cannot delete protected fields")
+				default:
+					//cclog.ComponentDebug("MessageProcessor", "Removing field for", data.Key)
+					message.RemoveField(data.Key)
+				}
+			case MESSAGE_LOCATION_TAGS:
+				//cclog.ComponentDebug("MessageProcessor", "Removing tag for", data.Key)
+				message.RemoveTag(data.Key)
+			case MESSAGE_LOCATION_META:
+				//cclog.ComponentDebug("MessageProcessor", "Removing meta for", data.Key)
+				message.RemoveMeta(data.Key)
+			}
+		}
+	}
+	return false, nil
+}
+
+func addIf(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig, location MessageLocation) (bool, error) {
+	for d, data := range *checks {
+		value, err := expr.Run(d, *params)
+		if err != nil {
+			return true, fmt.Errorf("failed to evaluate: %v", err.Error())
+		}
+		if value.(bool) {
+			switch location {
+			case MESSAGE_LOCATION_FIELDS:
+				//cclog.ComponentDebug("MessageProcessor", "Adding field", data.Value, "->", data.Value)
+				message.AddField(data.Key, data.Value)
+			case MESSAGE_LOCATION_TAGS:
+				//cclog.ComponentDebug("MessageProcessor", "Adding tag", data.Value, "->", data.Value)
+				message.AddTag(data.Key, data.Value)
+			case MESSAGE_LOCATION_META:
+				//cclog.ComponentDebug("MessageProcessor", "Adding meta", data.Value, "->", data.Value)
+				message.AddMeta(data.Key, data.Value)
+			}
+		}
+	}
+	return false, nil
+}
+
+func deleteTagIf(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig) (bool, error) {
+	return deleteIf(message, params, checks, MESSAGE_LOCATION_TAGS)
+}
+
+func addTagIf(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig) (bool, error) {
+	return addIf(message, params, checks, MESSAGE_LOCATION_TAGS)
+}
+
+func moveTagToMeta(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig) (bool, error) {
+	return moveInMessage(message, params, checks, MESSAGE_LOCATION_TAGS, MESSAGE_LOCATION_META)
+}
+
+func moveTagToField(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig) (bool, error) {
+	return moveInMessage(message, params, checks, MESSAGE_LOCATION_TAGS, MESSAGE_LOCATION_FIELDS)
+}
+
+func deleteMetaIf(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig) (bool, error) {
+	return deleteIf(message, params, checks, MESSAGE_LOCATION_META)
+}
+
+func addMetaIf(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig) (bool, error) {
+	return addIf(message, params, checks, MESSAGE_LOCATION_META)
+}
+
+func moveMetaToTag(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig) (bool, error) {
+	return moveInMessage(message, params, checks, MESSAGE_LOCATION_META, MESSAGE_LOCATION_TAGS)
+}
+
+func moveMetaToField(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig) (bool, error) {
+	return moveInMessage(message, params, checks, MESSAGE_LOCATION_META, MESSAGE_LOCATION_FIELDS)
+}
+
+func deleteFieldIf(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig) (bool, error) {
+	return deleteIf(message, params, checks, MESSAGE_LOCATION_FIELDS)
+}
+
+func addFieldIf(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig) (bool, error) {
+	return addIf(message, params, checks, MESSAGE_LOCATION_FIELDS)
+}
+
+func moveFieldToTag(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig) (bool, error) {
+	return moveInMessage(message, params, checks, MESSAGE_LOCATION_FIELDS, MESSAGE_LOCATION_TAGS)
+}
+
+func moveFieldToMeta(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]messageProcessorTagConfig) (bool, error) {
+	return moveInMessage(message, params, checks, MESSAGE_LOCATION_FIELDS, MESSAGE_LOCATION_META)
+}
+
+func dropMessagesIf(params *map[string]interface{}, checks *map[*vm.Program]struct{}) (bool, error) {
+	for d := range *checks {
+		value, err := expr.Run(d, *params)
+		if err != nil {
+			return false, fmt.Errorf("failed to evaluate: %v", err.Error())
+		}
+		if value.(bool) {
+			return true, nil
+		}
+	}
+	return false, nil
+}
+
+func normalizeUnits(message lp2.CCMessage) (bool, error) {
+	if in_unit, ok := message.GetMeta("unit"); ok {
+		u := units.NewUnit(in_unit)
+		if u.Valid() {
+			//cclog.ComponentDebug("MessageProcessor", "Update unit with", u.Short())
+			message.AddMeta("unit", u.Short())
+		}
+	} else if in_unit, ok := message.GetTag("unit"); ok {
+		u := units.NewUnit(in_unit)
+		if u.Valid() {
+			//cclog.ComponentDebug("MessageProcessor", "Update unit with", u.Short())
+			message.AddTag("unit", u.Short())
+		}
+	}
+	return false, nil
+}
+
+func changeUnitPrefix(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]string) (bool, error) {
+	for r, n := range *checks {
+		value, err := expr.Run(r, *params)
+		if err != nil {
+			return false, fmt.Errorf("failed to evaluate: %v", err.Error())
+		}
+		if value.(bool) {
+			newPrefix := units.NewPrefix(n)
+			//cclog.ComponentDebug("MessageProcessor", "Condition matches, change to prefix", newPrefix.String())
+			if in_unit, ok := message.GetMeta("unit"); ok && newPrefix != units.InvalidPrefix {
+				u := units.NewUnit(in_unit)
+				if u.Valid() {
+					//cclog.ComponentDebug("MessageProcessor", "Input unit", u.Short())
+					conv, out_unit := units.GetUnitPrefixFactor(u, newPrefix)
+					if conv != nil && out_unit.Valid() {
+						if val, ok := message.GetField("value"); ok {
+							//cclog.ComponentDebug("MessageProcessor", "Update unit with", out_unit.Short())
+							message.AddField("value", conv(val))
+							message.AddMeta("unit", out_unit.Short())
+						}
+					}
+				}
+
+			} else if in_unit, ok := message.GetTag("unit"); ok && newPrefix != units.InvalidPrefix {
+				u := units.NewUnit(in_unit)
+				if u.Valid() {
+					//cclog.ComponentDebug("MessageProcessor", "Input unit", u.Short())
+					conv, out_unit := units.GetUnitPrefixFactor(u, newPrefix)
+					if conv != nil && out_unit.Valid() {
+						if val, ok := message.GetField("value"); ok {
+							//cclog.ComponentDebug("MessageProcessor", "Update unit with", out_unit.Short())
+							message.AddField("value", conv(val))
+							message.AddTag("unit", out_unit.Short())
+						}
+					}
+				}
+
+			}
+		}
+	}
+	return false, nil
+}
+
+func renameMessagesIf(message lp2.CCMessage, params *map[string]interface{}, checks *map[*vm.Program]string) (bool, error) {
+	for d, n := range *checks {
+		value, err := expr.Run(d, *params)
+		if err != nil {
+			return true, fmt.Errorf("failed to evaluate: %v", err.Error())
+		}
+		if value.(bool) {
+			old := message.Name()
+			//cclog.ComponentDebug("MessageProcessor", "Rename to", n)
+			message.SetName(n)
+			//cclog.ComponentDebug("MessageProcessor", "Add old name as 'oldname' to meta", old)
+			message.AddMeta("oldname", old)
+		}
+	}
+	return false, nil
+}

pkg/messageProcessor/messageProcessor_test.go

@@ -0,0 +1,396 @@
+package messageprocessor
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"testing"
+	"time"
+
+	lp "github.com/ClusterCockpit/cc-energy-manager/pkg/cc-message"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+)
+
+func generate_message_lists(num_lists, num_entries int) ([][]lp.CCMessage, error) {
+	mlist := make([][]lp.CCMessage, 0)
+	for j := 0; j < num_lists; j++ {
+		out := make([]lp.CCMessage, 0)
+		for i := 0; i < num_entries; i++ {
+			var x lp.CCMessage
+			var err error = nil
+			switch {
+			case i%4 == 0:
+				x, err = lp.NewEvent("myevent", map[string]string{"type": "socket", "type-id": "0"}, map[string]string{}, "nothing happend", time.Now())
+			case i%4 == 1:
+				x, err = lp.NewMetric("mymetric", map[string]string{"type": "socket", "type-id": "0"}, map[string]string{"unit": "kByte"}, 12.145, time.Now())
+			case i%4 == 2:
+				x, err = lp.NewLog("mylog", map[string]string{"type": "socket", "type-id": "0"}, map[string]string{}, "disk status: OK", time.Now())
+			case i%4 == 3:
+				x, err = lp.NewGetControl("mycontrol", map[string]string{"type": "socket", "type-id": "0"}, map[string]string{}, time.Now())
+			}
+			if err == nil {
+				x.AddTag("hostname", "myhost")
+				out = append(out, x)
+			} else {
+				return nil, errors.New("failed to create message")
+			}
+		}
+		mlist = append(mlist, out)
+	}
+	return mlist, nil
+}
+
+func TestNewMessageProcessor(t *testing.T) {
+	_, err := NewMessageProcessor()
+	if err != nil {
+		t.Error(err.Error())
+	}
+}
+
+type Configs struct {
+	name   string
+	config json.RawMessage
+	drop   bool
+	errors bool
+	pre    func(msg lp.CCMessage) error
+	check  func(msg lp.CCMessage) error
+}
+
+var test_configs = []Configs{
+	{
+		name:   "single_dropif_nomatch",
+		config: json.RawMessage(`{"drop_messages_if": [ "name == 'testname' && tags.type == 'socket' && tags.typeid % 2 == 1"]}`),
+	},
+	{
+		name:   "drop_by_name",
+		config: json.RawMessage(`{"drop_messages": [ "net_bytes_in"]}`),
+		drop:   true,
+	},
+	{
+		name:   "drop_by_type_match",
+		config: json.RawMessage(`{"drop_by_message_type": [ "metric"]}`),
+		drop:   true,
+	},
+	{
+		name:   "drop_by_type_nomatch",
+		config: json.RawMessage(`{"drop_by_message_type": [ "event"]}`),
+	},
+	{
+		name:   "single_dropif_match",
+		config: json.RawMessage(`{"drop_messages_if": [ "name == 'net_bytes_in' && tags.type == 'node'"]}`),
+		drop:   true,
+	},
+	{
+		name:   "double_dropif_match_nomatch",
+		config: json.RawMessage(`{"drop_messages_if": [ "name == 'net_bytes_in' && tags.type == 'node'", "name == 'testname' && tags.type == 'socket' && tags.typeid % 2 == 1"]}`),
+		drop:   true,
+	},
+	{
+		name:   "rename_simple",
+		config: json.RawMessage(`{"rename_messages": { "net_bytes_in" : "net_bytes_out", "rapl_power": "cpu_power"}}`),
+		check: func(msg lp.CCMessage) error {
+			if msg.Name() != "net_bytes_out" {
+				return errors.New("expected name net_bytes_out but still have net_bytes_in")
+			}
+			return nil
+		},
+	},
+	{
+		name:   "rename_match",
+		config: json.RawMessage(`{"rename_messages_if": { "name == 'net_bytes_in'" : "net_bytes_out", "name == 'rapl_power'": "cpu_power"}}`),
+		check: func(msg lp.CCMessage) error {
+			if msg.Name() != "net_bytes_out" {
+				return errors.New("expected name net_bytes_out but still have net_bytes_in")
+			}
+			return nil
+		},
+	},
+	{
+		name:   "rename_nomatch",
+		config: json.RawMessage(`{"rename_messages_if": { "name == 'net_bytes_out'" : "net_bytes_in", "name == 'rapl_power'": "cpu_power"}}`),
+		check: func(msg lp.CCMessage) error {
+			if msg.Name() != "net_bytes_in" {
+				return errors.New("expected name net_bytes_in but still have net_bytes_out")
+			}
+			return nil
+		},
+	},
+	{
+		name:   "add_tag",
+		config: json.RawMessage(`{"add_tags_if": [{"if": "name == 'net_bytes_in'", "key" : "cluster", "value" : "mycluster"}]}`),
+		check: func(msg lp.CCMessage) error {
+			if !msg.HasTag("cluster") {
+				return errors.New("expected new tag 'cluster' but not present")
+			}
+			return nil
+		},
+	},
+	{
+		name:   "del_tag",
+		config: json.RawMessage(`{"delete_tags_if": [{"if": "name == 'net_bytes_in'", "key" : "type"}]}`),
+		check: func(msg lp.CCMessage) error {
+			if msg.HasTag("type") {
+				return errors.New("expected to have no 'type' but still present")
+			}
+			return nil
+		},
+	},
+	{
+		name:   "add_meta",
+		config: json.RawMessage(`{"add_meta_if": [{"if": "name == 'net_bytes_in'", "key" : "source", "value" : "example"}]}`),
+		check: func(msg lp.CCMessage) error {
+			if !msg.HasMeta("source") {
+				return errors.New("expected new tag 'source' but not present")
+			}
+			return nil
+		},
+	},
+	{
+		name:   "del_meta",
+		config: json.RawMessage(`{"delete_meta_if": [{"if": "name == 'net_bytes_in'", "key" : "unit"}]}`),
+		check: func(msg lp.CCMessage) error {
+			if msg.HasMeta("unit") {
+				return errors.New("expected to have no 'unit' but still present")
+			}
+			return nil
+		},
+	},
+	{
+		name:   "add_field",
+		config: json.RawMessage(`{"add_fields_if": [{"if": "name == 'net_bytes_in'", "key" : "myfield", "value" : "example"}]}`),
+		check: func(msg lp.CCMessage) error {
+			if !msg.HasField("myfield") {
+				return errors.New("expected new tag 'source' but not present")
+			}
+			return nil
+		},
+	},
+	{
+		name:   "delete_fields_if_protected",
+		config: json.RawMessage(`{"delete_fields_if": [{"if": "name == 'net_bytes_in'", "key" : "value"}]}`),
+		errors: true,
+		check: func(msg lp.CCMessage) error {
+			if !msg.HasField("value") {
+				return errors.New("expected to still have 'value' field because it is a protected field key")
+			}
+			return nil
+		},
+	},
+	{
+		name:   "delete_fields_if_unprotected",
+		config: json.RawMessage(`{"delete_fields_if": [{"if": "name == 'net_bytes_in'", "key" : "testfield"}]}`),
+		check: func(msg lp.CCMessage) error {
+			if msg.HasField("testfield") {
+				return errors.New("expected to still have 'testfield' field but should be deleted")
+			}
+			return nil
+		},
+		pre: func(msg lp.CCMessage) error {
+			msg.AddField("testfield", 4.123)
+			return nil
+		},
+	},
+	{
+		name:   "single_change_prefix_match",
+		config: json.RawMessage(`{"change_unit_prefix": {"name == 'net_bytes_in' && tags.type == 'node'": "M"}}`),
+		check: func(msg lp.CCMessage) error {
+			if u, ok := msg.GetMeta("unit"); ok {
+				if u != "MB" {
+					return fmt.Errorf("expected unit MB but have %s", u)
+				}
+			} else if u, ok := msg.GetTag("unit"); ok {
+				if u != "MB" {
+					return fmt.Errorf("expected unit MB but have %s", u)
+				}
+			}
+			return nil
+		},
+	},
+	{
+		name:   "normalize_units",
+		config: json.RawMessage(`{"normalize_units": true}`),
+		check: func(msg lp.CCMessage) error {
+			if u, ok := msg.GetMeta("unit"); ok {
+				if u != "B" {
+					return fmt.Errorf("expected unit B but have %s", u)
+				}
+			} else if u, ok := msg.GetTag("unit"); ok {
+				if u != "B" {
+					return fmt.Errorf("expected unit B but have %s", u)
+				}
+			}
+			return nil
+		},
+	},
+	{
+		name:   "move_tag_to_meta",
+		config: json.RawMessage(`{"move_tag_to_meta_if": [{"if": "name == 'net_bytes_in'", "key" : "type-id", "value": "typeid"}]}`),
+		check: func(msg lp.CCMessage) error {
+			if msg.HasTag("type-id") || !msg.HasMeta("typeid") {
+				return errors.New("moving tag 'type-id' to meta 'typeid' failed")
+			}
+			return nil
+		},
+		pre: func(msg lp.CCMessage) error {
+			msg.AddTag("type-id", "0")
+			return nil
+		},
+	},
+	{
+		name:   "move_tag_to_field",
+		config: json.RawMessage(`{"move_tag_to_field_if": [{"if": "name == 'net_bytes_in'", "key" : "type-id", "value": "typeid"}]}`),
+		check: func(msg lp.CCMessage) error {
+			if msg.HasTag("type-id") || !msg.HasField("typeid") {
+				return errors.New("moving tag 'type-id' to field 'typeid' failed")
+			}
+			return nil
+		},
+		pre: func(msg lp.CCMessage) error {
+			msg.AddTag("type-id", "0")
+			return nil
+		},
+	},
+	{
+		name:   "move_meta_to_tag",
+		config: json.RawMessage(`{"move_meta_to_tag_if": [{"if": "name == 'net_bytes_in'", "key" : "unit", "value": "unit"}]}`),
+		check: func(msg lp.CCMessage) error {
+			if msg.HasMeta("unit") || !msg.HasTag("unit") {
+				return errors.New("moving meta 'unit' to tag 'unit' failed")
+			}
+			return nil
+		},
+	},
+	{
+		name:   "move_meta_to_field",
+		config: json.RawMessage(`{"move_meta_to_field_if": [{"if": "name == 'net_bytes_in'", "key" : "unit", "value": "unit"}]}`),
+		check: func(msg lp.CCMessage) error {
+			if msg.HasMeta("unit") || !msg.HasField("unit") {
+				return errors.New("moving meta 'unit' to field 'unit' failed")
+			}
+			return nil
+		},
+	},
+	{
+		name:   "move_field_to_tag",
+		config: json.RawMessage(`{"move_field_to_tag_if": [{"if": "name == 'net_bytes_in'", "key" : "myfield", "value": "field"}]}`),
+		check: func(msg lp.CCMessage) error {
+			if msg.HasField("myfield") || !msg.HasTag("field") {
+				return errors.New("moving meta 'myfield' to tag 'field' failed")
+			}
+			return nil
+		},
+		pre: func(msg lp.CCMessage) error {
+			msg.AddField("myfield", 12)
+			return nil
+		},
+	},
+	{
+		name:   "move_field_to_meta",
+		config: json.RawMessage(`{"move_field_to_meta_if": [{"if": "name == 'net_bytes_in'", "key" : "myfield", "value": "field"}]}`),
+		check: func(msg lp.CCMessage) error {
+			if msg.HasField("myfield") || !msg.HasMeta("field") {
+				return errors.New("moving meta 'myfield' to meta 'field' failed")
+			}
+			return nil
+		},
+		pre: func(msg lp.CCMessage) error {
+			msg.AddField("myfield", 12)
+			return nil
+		},
+	},
+}
+
+func TestConfigList(t *testing.T) {
+	for _, c := range test_configs {
+		t.Run(c.name, func(t *testing.T) {
+			m, err := lp.NewMetric("net_bytes_in", map[string]string{"type": "node", "type-id": "0"}, map[string]string{"unit": "Byte"}, float64(1024.0), time.Now())
+			if err != nil {
+				t.Error(err.Error())
+				return
+			}
+			if c.pre != nil {
+				if err = c.pre(m); err != nil {
+					t.Errorf("error running pre-test function: %v", err.Error())
+					return
+				}
+			}
+
+			mp, err := NewMessageProcessor()
+			if err != nil {
+				t.Error(err.Error())
+				return
+			}
+			err = mp.FromConfigJSON(c.config)
+			if err != nil {
+				t.Error(err.Error())
+				return
+			}
+			//t.Log(m.ToLineProtocol(nil))
+			out, err := mp.ProcessMessage(m)
+			if err != nil && !c.errors {
+				cclog.SetDebug()
+				mp.ProcessMessage(m)
+				t.Error(err.Error())
+				return
+			}
+			if out == nil && !c.drop {
+				t.Error("fail, message should NOT be dropped but processor signalled dropping")
+				return
+			} else if out != nil && c.drop {
+				t.Error("fail, message should be dropped but processor signalled NO dropping")
+				return
+			}
+			// {
+			// 	if c.drop {
+			// 		t.Error("fail, message should be dropped but processor signalled NO dropping")
+			// 	} else {
+			// 		t.Error("fail, message should NOT be dropped but processor signalled dropping")
+			// 	}
+			// 	cclog.SetDebug()
+			// 	mp.ProcessMessage(m)
+			// 	return
+			// }
+			if c.check != nil {
+				if err := c.check(out); err != nil {
+					t.Errorf("check failed with %v", err.Error())
+					t.Log("Rerun with debugging")
+					cclog.SetDebug()
+					mp.ProcessMessage(m)
+					return
+				}
+			}
+		})
+	}
+}
+
+func BenchmarkProcessing(b *testing.B) {
+
+	mlist, err := generate_message_lists(b.N, 1000)
+	if err != nil {
+		b.Error(err.Error())
+		return
+	}
+
+	mp, err := NewMessageProcessor()
+	if err != nil {
+		b.Error(err.Error())
+		return
+	}
+	err = mp.FromConfigJSON(json.RawMessage(`{"move_meta_to_tag_if": [{"if" : "name == 'mymetric'", "key":"unit", "value":"unit"}]}`))
+	if err != nil {
+		b.Error(err.Error())
+		return
+	}
+
+	b.StartTimer()
+	for i := 0; i < b.N; i++ {
+		for _, m := range mlist[i] {
+			if _, err := mp.ProcessMessage(m); err != nil {
+				b.Errorf("failed processing message '%s': %v", m.ToLineProtocol(nil), err.Error())
+				return
+			}
+		}
+	}
+	b.StopTimer()
+	b.ReportMetric(float64(b.Elapsed())/float64(len(mlist)*b.N), "ns/message")
+}

pkg/multiChanTicker/multiChanTicker.go

@@ -3,7 +3,7 @@ package multiChanTicker
 import (
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-metric-collector/internal/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 )
 
 type multiChanTicker struct {

receivers.json

@@ -1,8 +1,44 @@
-[
-    {
+{
+    "natsrecv": {
         "type": "nats",
         "address": "nats://my-url",
-        "port" : "4222",
+        "port": "4222",
         "database": "testcluster"
+    },
+    "redfish_recv": {
+        "type": "redfish",
+        "endpoint": "https://%h-bmc",
+        "client_config": [
+            {
+                "host_list": "my-host-1-[1-2]",
+                "username": "username-1",
+                "password": "password-1"
+            },
+            {
+                "host_list": "my-host-2-[1,2]",
+                "username": "username-2",
+                "password": "password-2"
             }
-]
+        ]
+    },
+    "ipmi_recv": {
+        "type": "ipmi",
+        "endpoint": "ipmi-sensors://%h-ipmi",
+        "exclude_metrics": [
+            "fan_speed",
+            "voltage"
+        ],
+        "client_config": [
+            {
+                "username": "username-1",
+                "password": "password-1",
+                "host_list": "my-host-1-[1-2]"
+            },
+            {
+                "username": "username-2",
+                "password": "password-2",
+                "host_list": "my-host-2-[1,2]"
+            }
+        ]
+    }
+}

receivers/README.md

@@ -2,43 +2,31 @@
 
 This folder contains the ReceiveManager and receiver implementations for the cc-metric-collector.
 
-# Configuration
+## Configuration
 
 The configuration file for the receivers is a list of configurations. The `type` field in each specifies which receiver to initialize.
 
-```json
-[
-  {
-    "type": "nats",
-    "address": "nats://my-url",
-    "port" : "4222",
-    "database": "testcluster"
-  }
-]
-```
-
-
-## Type `nats`
-
 ```json
 {
-  "type": "nats",
-  "address": "<nats-URI or hostname>",
-  "port" : "<portnumber>",
-  "database": "<subscribe topic>"
+  "myreceivername" : {
+    "type": "receiver-type",
+    <receiver-specific configuration>
+  }
 }
 ```
 
-The `nats` receiver subscribes to the topic `database` and listens on `address` and `port` for metrics in the InfluxDB line protocol.
+This allows to specify
 
-# Contributing own receivers
-A receiver contains three functions and is derived from the type `Receiver` (in `metricReceiver.go`):
-* `Init(config ReceiverConfig) error`
-* `Start() error`
-* `Close()`
-* `Name() string`
-* `SetSink(sink chan ccMetric.CCMetric)`
+## Available receivers
 
-The data structures should be set up in `Init()` like opening a file or server connection. The `Start()` function should either start a go routine or issue some other asynchronous mechanism for receiving metrics. The `Close()` function should tear down anything created in `Init()`.
+- [`nats`](./natsReceiver.md): Receive metrics from the NATS network
+- [`prometheus`](./prometheusReceiver.md): Scrape data from a Prometheus client
+- [`http`](./httpReceiver.md): Listen for HTTP Post requests transporting metrics in InfluxDB line protocol
+- [`ipmi`](./ipmiReceiver.md): Read IPMI sensor readings
+- [`redfish`](redfishReceiver.md) Use the Redfish (specification) to query thermal and power metrics
 
-Finally, the receiver needs to be registered in the `receiveManager.go`. There is a list of receivers called `AvailableReceivers` which is a map (`receiver_type_string` -> `pointer to Receiver interface`). Add a new entry with a descriptive name and the new receiver.
+## Contributing own receivers
+
+A receiver contains a few functions and is derived from the type `Receiver` (in `metricReceiver.go`):
+
+For an example, check the [sample receiver](./sampleReceiver.go)