Add power averager to Nvidia GPU collector

%sysusers_create_package requires two arguments. See: https://github.com/systemd/systemd/blob/main/src/rpm/macros.systemd.in#L165

.github/ci-config.json

@@ -1,10 +1,8 @@
 {
-  "sinks-file": ".github/ci-sinks.json",
-  "collectors-file" : ".github/ci-collectors.json",
-  "receivers-file" : ".github/ci-receivers.json",
-  "router-file" : ".github/ci-router.json",
-  "main" : {
-    "interval": "5s",
-    "duration": "1s"
-  }
+  "sinks": ".github/ci-sinks.json",
+  "collectors" : ".github/ci-collectors.json",
+  "receivers" : ".github/ci-receivers.json",
+  "router" : ".github/ci-router.json",
+  "interval": "5s",
+  "duration": "1s"
 }

.github/workflows/Release.yml

@@ -15,7 +15,7 @@ jobs:
   #
   # Build on AlmaLinux 8 using go-toolset
   #
-  AlmaLinux8-RPM-build:
+  AlmaLinux-RPM-build:
     runs-on: ubuntu-latest
     # See: https://hub.docker.com/_/almalinux
     container: almalinux:8
@@ -41,17 +41,14 @@ jobs:
         submodules: recursive
         fetch-depth: 0
 
-    # - name: Setup Golang
-    #   uses: actions/setup-go@v5
-    #   with:
-    #     go-version: 'stable'
-    - name: Setup Golang
+    # Use dnf to install build dependencies
+    - name: Install build dependencies
       run: |
-          dnf --assumeyes --disableplugin=subscription-manager install \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/go-toolset-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-bin-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-src-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.noarch.rpm
+          dnf --assumeyes install \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/golang-1.20.6-2.module_el8+658+f14b2092.x86_64.rpm \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/golang-bin-1.20.6-2.module_el8+658+f14b2092.x86_64.rpm \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/golang-src-1.20.6-2.module_el8+658+f14b2092.noarch.rpm \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/go-toolset-1.20.6-1.module_el8+602+8bb8a8d6.x86_64.rpm
 
     - name: RPM build MetricCollector
       id: rpmbuild
@@ -73,101 +70,20 @@ jobs:
         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}" >> $GITHUB_OUTPUT
+        echo "::set-output name=SRPM::${NEW_SRPM}"
+        echo "::set-output name=RPM::${NEW_RPM}"
 
     # See: https://github.com/actions/upload-artifact
     - name: Save RPM as artifact
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v2
       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
+      uses: actions/upload-artifact@v2
       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-1.23.9-1.el9_6.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-1.23.9-1.el9_6.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-bin-1.23.9-1.el9_6.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-src-1.23.9-1.el9_6.noarch.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-race-1.23.9-1.el9_6.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
@@ -195,17 +111,14 @@ jobs:
         submodules: recursive
         fetch-depth: 0
 
-    # - name: Setup Golang
-    #   uses: actions/setup-go@v5
-    #   with:
-    #     go-version: 'stable'
-    - name: Setup Golang
+    # Use dnf to install build dependencies
+    - name: Install build dependencies
       run: |
           dnf --assumeyes --disableplugin=subscription-manager install \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/go-toolset-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-bin-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-src-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.noarch.rpm
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/golang-1.20.6-2.module_el8+658+f14b2092.x86_64.rpm \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/golang-bin-1.20.6-2.module_el8+658+f14b2092.x86_64.rpm \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/golang-src-1.20.6-2.module_el8+658+f14b2092.noarch.rpm \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/go-toolset-1.20.6-1.module_el8+602+8bb8a8d6.x86_64.rpm
 
     - name: RPM build MetricCollector
       id: rpmbuild
@@ -215,78 +128,15 @@ jobs:
 
     # See: https://github.com/actions/upload-artifact
     - name: Save RPM as artifact
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v2
       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
+      uses: actions/upload-artifact@v2
       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-1.23.9-1.el9_6.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-1.23.9-1.el9_6.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-bin-1.23.9-1.el9_6.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-src-1.23.9-1.el9_6.noarch.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-race-1.23.9-1.el9_6.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
@@ -312,15 +162,17 @@ jobs:
       with:
         submodules: recursive
         fetch-depth: 0
-
-    - name: Setup Golang
-      uses: actions/setup-go@v5
-      with:
-        go-version: 'stable'
-
+    # Use official golang package
+    - name: Install Golang
+      run: |
+          wget -q https://go.dev/dl/go1.21.1.linux-amd64.tar.gz --output-document=- | \
+          tar --directory=/usr/local --extract --gzip
+          export PATH=/usr/local/go/bin:/usr/local/go/pkg/tool/linux_amd64:$PATH
+          go version
     - name: DEB build MetricCollector
       id: dpkg-build
       run: |
+          export PATH=/usr/local/go/bin:/usr/local/go/pkg/tool/linux_amd64:$PATH
           git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
           make DEB
     - name: Rename DEB (add '_ubuntu22.04')
@@ -329,65 +181,13 @@ jobs:
         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}" >> $GITHUB_OUTPUT
+        echo "::set-output name=DEB::${NEW_DEB_FILE}"
     # See: https://github.com/actions/upload-artifact
     - name: Save DEB as artifact
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v2
       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
@@ -395,56 +195,33 @@ jobs:
   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]
+    needs: [AlmaLinux-RPM-build, UBI-8-RPM-build, Ubuntu-focal-build]
 
     steps:
     # See: https://github.com/actions/download-artifact
     - name: Download AlmaLinux 8 RPM
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v2
       with:
         name: cc-metric-collector RPM for AlmaLinux 8
     - name: Download AlmaLinux 8 SRPM
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v2
       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
+      uses: actions/download-artifact@v2
       with:
         name: cc-metric-collector RPM for UBI 8
     - name: Download UBI 8 SRPM
-      uses: actions/download-artifact@v4
+      uses: actions/download-artifact@v2
       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
+      uses: actions/download-artifact@v2
       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.
@@ -454,51 +231,31 @@ jobs:
     - 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}}")
+        ALMA_8_RPM=$(basename "${{ needs.AlmaLinux-RPM-build.outputs.rpm}}")
+        ALMA_8_SRPM=$(basename "${{ needs.AlmaLinux-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}}")
+        U_2004_DEB=$(basename "${{ needs.Ubuntu-focal-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}" >> $GITHUB_OUTPUT
+        echo "U_2004_DEB::${U_2004_DEB}"
+        echo "::set-output name=ALMA_8_RPM::${ALMA_8_RPM}"
+        echo "::set-output name=ALMA_8_SRPM::${ALMA_8_SRPM}"
+        echo "::set-output name=UBI_8_RPM::${UBI_8_RPM}"
+        echo "::set-output name=UBI_8_SRPM::${UBI_8_SRPM}"
+        echo "::set-output name=U_2004_DEB::${U_2004_DEB}"
 
     # See: https://github.com/softprops/action-gh-release
     - name: Release
-      uses: softprops/action-gh-release@v2
+      uses: softprops/action-gh-release@v1
       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 }}
+         ${{ steps.files.outputs.U_2004_DEB }}

.github/workflows/runonce.yml

@@ -11,10 +11,10 @@ on:
 jobs:
 
   #
-  # Job build-latest
-  # Build on latest Ubuntu using latest golang version
+  # Job build-1-20
+  # Build on latest Ubuntu using golang version 1.20
   #
-  build-latest:
+  build-1-20:
     runs-on: ubuntu-latest
     steps:
     # See: https://github.com/marketplace/actions/checkout
@@ -26,10 +26,9 @@ jobs:
 
     # See: https://github.com/marketplace/actions/setup-go-environment
     - name: Setup Golang
-      uses: actions/setup-go@v5
+      uses: actions/setup-go@v4
       with:
-        go-version: '1.21'
-        check-latest: true
+        go-version: '1.20'
 
     - name: Build MetricCollector
       run: make
@@ -38,9 +37,35 @@ jobs:
       run: ./cc-metric-collector --once --config .github/ci-config.json
 
   #
-  # Build on AlmaLinux 8
+  # Job build-1-21
+  # Build on latest Ubuntu using golang version 1.21
   #
-  AlmaLinux8-RPM-build:
+  build-1-21:
+    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@v4
+      with:
+        go-version: '1.21'
+
+    - name: Build MetricCollector
+      run: make
+
+    - name: Run MetricCollector once
+      run: ./cc-metric-collector --once --config .github/ci-config.json
+
+  #
+  # Build on AlmaLinux 8 using go-toolset
+  #
+  AlmaLinux-RPM-build:
     runs-on: ubuntu-latest
     # See: https://hub.docker.com/_/almalinux
     container: almalinux:8
@@ -63,18 +88,14 @@ jobs:
         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
+    # Use dnf to install build dependencies
+    - name: Install build dependencies
       run: |
-          dnf --assumeyes --disableplugin=subscription-manager install \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/go-toolset-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-bin-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-src-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.noarch.rpm
+          dnf --assumeyes install \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/golang-1.20.6-2.module_el8+658+f14b2092.x86_64.rpm \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/golang-bin-1.20.6-2.module_el8+658+f14b2092.x86_64.rpm \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/golang-src-1.20.6-2.module_el8+658+f14b2092.noarch.rpm \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/go-toolset-1.20.6-1.module_el8+602+8bb8a8d6.x86_64.rpm
 
     - name: RPM build MetricCollector
       id: rpmbuild
@@ -82,60 +103,13 @@ jobs:
           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-1.23.9-1.el9_6.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-1.23.9-1.el9_6.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-bin-1.23.9-1.el9_6.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-src-1.23.9-1.el9_6.noarch.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-race-1.23.9-1.el9_6.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
+    container: registry.access.redhat.com/ubi8/ubi:8.8-1032.1692772289
     # The job outputs link to the outputs of the 'rpmbuild' step
     steps:
 
@@ -152,61 +126,14 @@ jobs:
         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
+    # Use dnf to install build dependencies
+    - name: Install build dependencies
       run: |
           dnf --assumeyes --disableplugin=subscription-manager install \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/go-toolset-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-bin-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-src-1.23.9-1.module_el8.10.0+4000+1ad1b2cc.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-1.23.9-1.el9_6.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-1.23.9-1.el9_6.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-bin-1.23.9-1.el9_6.x86_64.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-src-1.23.9-1.el9_6.noarch.rpm \
-              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-race-1.23.9-1.el9_6.x86_64.rpm
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/golang-1.20.6-2.module_el8+658+f14b2092.x86_64.rpm \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/golang-bin-1.20.6-2.module_el8+658+f14b2092.x86_64.rpm \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/golang-src-1.20.6-2.module_el8+658+f14b2092.noarch.rpm \
+              http://mirror.centos.org/centos/8-stream/AppStream/x86_64/os/Packages/go-toolset-1.20.6-1.module_el8+602+8bb8a8d6.x86_64.rpm
 
     - name: RPM build MetricCollector
       id: rpmbuild
@@ -236,48 +163,15 @@ jobs:
         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: Install Golang
+      run: |
+          wget -q https://go.dev/dl/go1.21.1.linux-amd64.tar.gz --output-document=- | \
+          tar --directory=/usr/local --extract --gzip
+          export PATH=/usr/local/go/bin:/usr/local/go/pkg/tool/linux_amd64:$PATH
+          go version
     - name: DEB build MetricCollector
       id: dpkg-build
       run: |
           export PATH=/usr/local/go/bin:/usr/local/go/pkg/tool/linux_amd64:$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
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+          make DEB

README.md

@@ -1,17 +1,6 @@
-<!--
----
-title: cc-metric-collector
-description: Metric collecting node agent
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/_index.md
----
--->
-
 # cc-metric-collector
 
-A node agent for measuring, processing and forwarding node level metrics. It is part of the [ClusterCockpit ecosystem](https://clustercockpit.org/docs/overview/).
+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).
 
@@ -46,8 +35,8 @@ The `interval` defines how often the metrics should be read and send to the sink
 See the component READMEs for their configuration:
 
 * [`collectors`](./collectors/README.md)
-* [`sinks`](https://github.com/ClusterCockpit/cc-lib/blob/main/sinks/README.md)
-* [`receivers`](https://github.com/ClusterCockpit/cc-lib/blob/main/receivers/README.md)
+* [`sinks`](./sinks/README.md)
+* [`receivers`](./receivers/README.md)
 * [`router`](./internal/metricRouter/README.md)
 
 # Installation

cc-metric-collector.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package main
 
 import (
@@ -14,24 +7,39 @@ import (
 	"os/signal"
 	"syscall"
 
-	"github.com/ClusterCockpit/cc-lib/receivers"
-	"github.com/ClusterCockpit/cc-lib/sinks"
 	"github.com/ClusterCockpit/cc-metric-collector/collectors"
+	"github.com/ClusterCockpit/cc-metric-collector/receivers"
+	"github.com/ClusterCockpit/cc-metric-collector/sinks"
 
 	//	"strings"
 	"sync"
 	"time"
 
-	ccconf "github.com/ClusterCockpit/cc-lib/ccConfig"
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 	mr "github.com/ClusterCockpit/cc-metric-collector/internal/metricRouter"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 	mct "github.com/ClusterCockpit/cc-metric-collector/pkg/multiChanTicker"
 )
 
 type CentralConfigFile struct {
-	Interval string `json:"interval"`
-	Duration string `json:"duration"`
+	Interval            string `json:"interval"`
+	Duration            string `json:"duration"`
+	CollectorConfigFile string `json:"collectors"`
+	RouterConfigFile    string `json:"router"`
+	SinkConfigFile      string `json:"sinks"`
+	ReceiverConfigFile  string `json:"receivers,omitempty"`
+}
+
+func LoadCentralConfiguration(file string, config *CentralConfigFile) error {
+	configFile, err := os.Open(file)
+	if err != nil {
+		cclog.Error(err.Error())
+		return err
+	}
+	defer configFile.Close()
+	jsonParser := json.NewDecoder(configFile)
+	err = jsonParser.Decode(config)
+	return err
 }
 
 type RuntimeConfig struct {
@@ -46,7 +54,7 @@ type RuntimeConfig struct {
 	ReceiveManager  receivers.ReceiveManager
 	MultiChanTicker mct.MultiChanTicker
 
-	Channels []chan lp.CCMessage
+	Channels []chan lp.CCMetric
 	Sync     sync.WaitGroup
 }
 
@@ -79,7 +87,7 @@ func ReadCli() map[string]string {
 	cfg := flag.String("config", "./config.json", "Path to configuration file")
 	logfile := flag.String("log", "stderr", "Path for logfile")
 	once := flag.Bool("once", false, "Run all collectors only once")
-	loglevel := flag.String("loglevel", "info", "Set log level")
+	debug := flag.Bool("debug", false, "Activate debug output")
 	flag.Parse()
 	m = make(map[string]string)
 	m["configfile"] = *cfg
@@ -89,7 +97,12 @@ func ReadCli() map[string]string {
 	} else {
 		m["once"] = "false"
 	}
-	m["loglevel"] = *loglevel
+	if *debug {
+		m["debug"] = "true"
+		cclog.SetDebug()
+	} else {
+		m["debug"] = "false"
+	}
 	return m
 }
 
@@ -154,15 +167,8 @@ func mainFunc() int {
 		CliArgs:        ReadCli(),
 	}
 
-	// Set loglevel based on command line input.
-	cclog.Init(rcfg.CliArgs["loglevel"], false)
-
-	// Init ccConfig with configuration file
-	ccconf.Init(rcfg.CliArgs["configfile"])
-
 	// Load and check configuration
-	main := ccconf.GetPackageConfig("main")
-	err = json.Unmarshal(main, &rcfg.ConfigFile)
+	err = LoadCentralConfiguration(rcfg.CliArgs["configfile"], &rcfg.ConfigFile)
 	if err != nil {
 		cclog.Error("Error reading configuration file ", rcfg.CliArgs["configfile"], ": ", err.Error())
 		return 1
@@ -198,74 +204,70 @@ func mainFunc() int {
 		return 1
 	}
 
-	routerConf := ccconf.GetPackageConfig("router")
-	if len(routerConf) == 0 {
+	if len(rcfg.ConfigFile.RouterConfigFile) == 0 {
 		cclog.Error("Metric router configuration file must be set")
 		return 1
 	}
 
-	sinkConf := ccconf.GetPackageConfig("sinks")
-	if len(sinkConf) == 0 {
+	if len(rcfg.ConfigFile.SinkConfigFile) == 0 {
 		cclog.Error("Sink configuration file must be set")
 		return 1
 	}
 
-	collectorConf := ccconf.GetPackageConfig("collectors")
-	if len(collectorConf) == 0 {
+	if len(rcfg.ConfigFile.CollectorConfigFile) == 0 {
 		cclog.Error("Metric collector configuration file must be set")
 		return 1
 	}
 
 	// Set log file
-	// if logfile := rcfg.CliArgs["logfile"]; logfile != "stderr" {
-	// 	cclog.SetOutput(logfile)
-	// }
+	if logfile := rcfg.CliArgs["logfile"]; logfile != "stderr" {
+		cclog.SetOutput(logfile)
+	}
 
 	// Creat new multi channel ticker
 	rcfg.MultiChanTicker = mct.NewTicker(rcfg.Interval)
 
 	// Create new metric router
-	rcfg.MetricRouter, err = mr.New(rcfg.MultiChanTicker, &rcfg.Sync, routerConf)
+	rcfg.MetricRouter, err = mr.New(rcfg.MultiChanTicker, &rcfg.Sync, rcfg.ConfigFile.RouterConfigFile)
 	if err != nil {
 		cclog.Error(err.Error())
 		return 1
 	}
 
 	// Create new sink
-	rcfg.SinkManager, err = sinks.New(&rcfg.Sync, sinkConf)
+	rcfg.SinkManager, err = sinks.New(&rcfg.Sync, rcfg.ConfigFile.SinkConfigFile)
 	if err != nil {
 		cclog.Error(err.Error())
 		return 1
 	}
 
 	// Connect metric router to sink manager
-	RouterToSinksChannel := make(chan lp.CCMessage, 200)
+	RouterToSinksChannel := make(chan lp.CCMetric, 200)
 	rcfg.SinkManager.AddInput(RouterToSinksChannel)
 	rcfg.MetricRouter.AddOutput(RouterToSinksChannel)
 
 	// Create new collector manager
-	rcfg.CollectManager, err = collectors.New(rcfg.MultiChanTicker, rcfg.Duration, &rcfg.Sync, collectorConf)
+	rcfg.CollectManager, err = collectors.New(rcfg.MultiChanTicker, rcfg.Duration, &rcfg.Sync, rcfg.ConfigFile.CollectorConfigFile)
 	if err != nil {
 		cclog.Error(err.Error())
 		return 1
 	}
 
 	// Connect collector manager to metric router
-	CollectToRouterChannel := make(chan lp.CCMessage, 200)
+	CollectToRouterChannel := make(chan lp.CCMetric, 200)
 	rcfg.CollectManager.AddOutput(CollectToRouterChannel)
 	rcfg.MetricRouter.AddCollectorInput(CollectToRouterChannel)
 
 	// Create new receive manager
-	receiveConf := ccconf.GetPackageConfig("receivers")
-	if len(receiveConf) > 0 {
-		rcfg.ReceiveManager, err = receivers.New(&rcfg.Sync, receiveConf)
+	if len(rcfg.ConfigFile.ReceiverConfigFile) > 0 {
+		rcfg.ReceiveManager, err = receivers.New(&rcfg.Sync, rcfg.ConfigFile.ReceiverConfigFile)
 		if err != nil {
 			cclog.Error(err.Error())
 			return 1
 		}
 
 		// Connect receive manager to metric router
-		ReceiveToRouterChannel := make(chan lp.CCMessage, 200)
+		ReceiveToRouterChannel := make(chan lp.CCMetric, 200)
 		rcfg.ReceiveManager.AddOutput(ReceiveToRouterChannel)
 		rcfg.MetricRouter.AddReceiverInput(ReceiveToRouterChannel)
 		use_recv = true

collectors/Makefile

@@ -1,5 +1,5 @@
 # LIKWID version
-LIKWID_VERSION := 5.4.1
+LIKWID_VERSION := 5.2.2
 LIKWID_INSTALLED_FOLDER := $(shell dirname $$(which likwid-topology 2>/dev/null) 2>/dev/null)
 
 LIKWID_FOLDER := $(CURDIR)/likwid
@@ -23,7 +23,7 @@ likwid:
 	    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)" "$${BUILD_FOLDER}/likwid-$(LIKWID_VERSION)/src/includes"/likwid*.h
+		install -D --verbose --preserve-timestamps --mode=0644 --target-directory="$(LIKWID_FOLDER)" "$${BUILD_FOLDER}/likwid-$(LIKWID_VERSION)/src/includes"/likwid*.h "$${BUILD_FOLDER}/likwid-$(LIKWID_VERSION)/src/includes"/bstrlib.h
 	    rm --recursive "$${BUILD_FOLDER}"
 	fi
 

collectors/README.md

@@ -1,14 +1,3 @@
-<!--
----
-title: Metric Collectors
-description: Metric collectors for cc-metric-collector
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/_index.md
----
--->
-
 # CCMetric collectors
 
 This folder contains the collectors for the cc-metric-collector.
@@ -34,6 +23,7 @@ In contrast to the configuration files for sinks and receivers, the collectors c
 * [`loadavg`](./loadavgMetric.md)
 * [`netstat`](./netstatMetric.md)
 * [`ibstat`](./infinibandMetric.md)
+* [`ibstat_perfquery`](./infinibandPerfQueryMetric.md)
 * [`tempstat`](./tempMetric.md)
 * [`lustrestat`](./lustreMetric.md)
 * [`likwid`](./likwidMetric.md)
@@ -43,10 +33,8 @@ In contrast to the configuration files for sinks and receivers, the collectors c
 * [`topprocs`](./topprocsMetric.md)
 * [`nfs3stat`](./nfs3Metric.md)
 * [`nfs4stat`](./nfs4Metric.md)
-* [`nfsiostat`](./nfsiostatMetric.md)
 * [`cpufreq`](./cpufreqMetric.md)
 * [`cpufreq_cpuinfo`](./cpufreqCpuinfoMetric.md)
-* [`schedstat`](./schedstatMetric.md)
 * [`numastats`](./numastatsMetric.md)
 * [`gpfs`](./gpfsMetric.md)
 * [`beegfs_meta`](./beegfsmetaMetric.md)
@@ -63,7 +51,7 @@ A collector reads data from any source, parses it to metrics and submits these m
 * `Name() string`: Return the name of the collector
 * `Init(config json.RawMessage) error`: Initializes the collector using the given collector-specific config in JSON. Check if needed files/commands exists, ...
 * `Initialized() bool`: Check if a collector is successfully initialized
-* `Read(duration time.Duration, output chan ccMessage.CCMessage)`: Read, parse and submit data to the `output` channel as [`CCMessage`](https://github.com/ClusterCockpit/cc-lib/blob/main/ccMessage/README.md). If the collector has to measure anything for some duration, use the provided function argument `duration`.
+* `Read(duration time.Duration, output chan ccMetric.CCMetric)`: Read, parse and submit data to the `output` channel as [`CCMetric`](../internal/ccMetric/README.md). If the collector has to measure anything for some duration, use the provided function argument `duration`.
 * `Close()`: Closes down the collector.
 
 It is recommanded to call `setup()` in the `Init()` function.

collectors/beegfsmetaMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -21,8 +14,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 const DEFAULT_BEEGFS_CMD = "beegfs-ctl"
@@ -117,7 +110,7 @@ func (m *BeegfsMetaCollector) Init(config json.RawMessage) error {
 	return nil
 }
 
-func (m *BeegfsMetaCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *BeegfsMetaCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}
@@ -223,7 +216,7 @@ func (m *BeegfsMetaCollector) Read(interval time.Duration, output chan lp.CCMess
 
 			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())
+				y, err := lp.New(key, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
 				if err == nil {
 					output <- y
 				}

collectors/beegfsmetaMetric.md

@@ -1,17 +1,5 @@
-<!--
----
-title: BeeGFS metadata metric collector
-description: Collect metadata clientstats for `BeeGFS on Demand`
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/beegfsmeta.md
----
--->
-
-
 ## `BeeGFS on Demand` collector
-This Collector is to collect `BeeGFS on Demand` (BeeOND) metadata clientstats.
+This Collector is to collect BeeGFS on Demand (BeeOND) metadata clientstats.
 
 ```json
   "beegfs_meta": {
@@ -84,4 +72,4 @@ Available Metrics:
 * setXA
 * mirror
 
-The collector adds a `filesystem` tag to all metrics
+The collector adds a `filesystem` tag to all metrics

collectors/beegfsstorageMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -21,8 +14,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 // Struct for the collector-specific JSON config
@@ -110,7 +103,7 @@ func (m *BeegfsStorageCollector) Init(config json.RawMessage) error {
 	return nil
 }
 
-func (m *BeegfsStorageCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *BeegfsStorageCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}
@@ -215,7 +208,7 @@ func (m *BeegfsStorageCollector) Read(interval time.Duration, output chan lp.CCM
 
 			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())
+				y, err := lp.New(key, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
 				if err == nil {
 					output <- y
 				}

collectors/beegfsstorageMetric.md

@@ -1,14 +1,3 @@
-<!--
----
-title: "BeeGFS on Demand metric collector"
-description: Collect performance metrics for BeeGFS filesystems
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/beegfsstorage.md
----
--->
-
 ## `BeeGFS on Demand` collector
 This Collector is to collect BeeGFS on Demand (BeeOND) storage stats.
 
@@ -63,4 +52,4 @@ Available Metrics:
 * "unlnk"
 
 
-The collector adds a `filesystem` tag to all metrics
+The collector adds a `filesystem` tag to all metrics

collectors/collectorManager.go

@@ -1,19 +1,13 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
 	"encoding/json"
+	"os"
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 	mct "github.com/ClusterCockpit/cc-metric-collector/pkg/multiChanTicker"
 )
 
@@ -53,7 +47,7 @@ var AvailableCollectors = map[string]MetricCollector{
 type collectorManager struct {
 	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
+	output       chan lp.CCMetric           // 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)
@@ -65,8 +59,8 @@ type collectorManager struct {
 
 // Metric collector manager access functions
 type CollectorManager interface {
-	Init(ticker mct.MultiChanTicker, duration time.Duration, wg *sync.WaitGroup, collectConfig json.RawMessage) error
-	AddOutput(output chan lp.CCMessage)
+	Init(ticker mct.MultiChanTicker, duration time.Duration, wg *sync.WaitGroup, collectConfigFile string) error
+	AddOutput(output chan lp.CCMetric)
 	Start()
 	Close()
 }
@@ -78,7 +72,7 @@ type CollectorManager interface {
 // * ticker (from variable ticker)
 // * configuration (read from config file in variable collectConfigFile)
 // Initialization is done for all configured collectors
-func (cm *collectorManager) Init(ticker mct.MultiChanTicker, duration time.Duration, wg *sync.WaitGroup, collectConfig json.RawMessage) error {
+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
@@ -87,7 +81,15 @@ func (cm *collectorManager) Init(ticker mct.MultiChanTicker, duration time.Durat
 	cm.ticker = ticker
 	cm.duration = duration
 
-	err := json.Unmarshal(collectConfig, &cm.config)
+	// Read collector config file
+	configFile, err := os.Open(collectConfigFile)
+	if err != nil {
+		cclog.Error(err.Error())
+		return err
+	}
+	defer configFile.Close()
+	jsonParser := json.NewDecoder(configFile)
+	err = jsonParser.Decode(&cm.config)
 	if err != nil {
 		cclog.Error(err.Error())
 		return err
@@ -185,7 +187,7 @@ func (cm *collectorManager) Start() {
 }
 
 // AddOutput adds the output channel to the metric collector manager
-func (cm *collectorManager) AddOutput(output chan lp.CCMessage) {
+func (cm *collectorManager) AddOutput(output chan lp.CCMetric) {
 	cm.output = output
 }
 
@@ -198,9 +200,9 @@ func (cm *collectorManager) Close() {
 }
 
 // New creates a new initialized metric collector manager
-func New(ticker mct.MultiChanTicker, duration time.Duration, wg *sync.WaitGroup, collectConfig json.RawMessage) (CollectorManager, error) {
+func New(ticker mct.MultiChanTicker, duration time.Duration, wg *sync.WaitGroup, collectConfigFile string) (CollectorManager, error) {
 	cm := new(collectorManager)
-	err := cm.Init(ticker, duration, wg, collectConfig)
+	err := cm.Init(ticker, duration, wg, collectConfigFile)
 	if err != nil {
 		return nil, err
 	}

collectors/cpufreqCpuinfoMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -17,8 +10,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 // CPUFreqCollector
@@ -119,14 +112,14 @@ func (m *CPUFreqCpuInfoCollector) Init(config json.RawMessage) error {
 
 	// 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)
+		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.CCMessage) {
+func (m *CPUFreqCpuInfoCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	// Check if already initialized
 	if !m.init {
 		return
@@ -161,7 +154,7 @@ func (m *CPUFreqCpuInfoCollector) Read(interval time.Duration, output chan lp.CC
 							fmt.Sprintf("Read(): Failed to convert cpu MHz '%s' to float64: %v", lineSplit[1], err))
 						return
 					}
-					if y, err := lp.NewMessage("cpufreq", t.tagSet, m.meta, map[string]interface{}{"value": value}, now); err == nil {
+					if y, err := lp.New("cpufreq", t.tagSet, m.meta, map[string]interface{}{"value": value}, now); err == nil {
 						output <- y
 					}
 				}

collectors/cpufreqCpuinfoMetric.md

@@ -1,14 +1,3 @@
-<!--
----
-title: CPU frequency metric collector through cpuinfo
-description: Collect the CPU frequency from `/proc/cpuinfo`
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/cpufreq_cpuinfo.md
----
--->
-
 ## `cpufreq_cpuinfo` collector
 
 ```json

collectors/cpufreqMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -16,8 +9,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 	"github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
 	"golang.org/x/sys/unix"
 )
@@ -98,7 +91,7 @@ func (m *CPUFreqCollector) Init(config json.RawMessage) error {
 	return nil
 }
 
-func (m *CPUFreqCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *CPUFreqCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	// Check if already initialized
 	if !m.init {
 		return
@@ -124,7 +117,7 @@ func (m *CPUFreqCollector) Read(interval time.Duration, output chan lp.CCMessage
 			continue
 		}
 
-		if y, err := lp.NewMessage("cpufreq", t.tagSet, m.meta, map[string]interface{}{"value": cpuFreq}, now); err == nil {
+		if y, err := lp.New("cpufreq", t.tagSet, m.meta, map[string]interface{}{"value": cpuFreq}, now); err == nil {
 			output <- y
 		}
 	}

collectors/cpufreqMetric.md

@@ -1,14 +1,3 @@
-<!--
----
-title: CPU frequency metric collector through sysfs
-description: Collect the CPU frequency metrics from `/sys/.../cpu/.../cpufreq`
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/cpufreq.md
----
--->
-
 ## `cpufreq_cpuinfo` collector
 
 ```json

collectors/cpustatMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -16,8 +9,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 	sysconf "github.com/tklauser/go-sysconf"
 )
 
@@ -41,7 +34,7 @@ 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.meta = map[string]string{"source": m.name, "group": "CPU", "unit": "Percent"}
 	m.nodetags = map[string]string{"type": "node"}
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
@@ -112,7 +105,7 @@ func (m *CpustatCollector) Init(config json.RawMessage) error {
 	return nil
 }
 
-func (m *CpustatCollector) parseStatLine(linefields []string, tags map[string]string, output chan lp.CCMessage, now time.Time, tsdelta time.Duration) {
+func (m *CpustatCollector) parseStatLine(linefields []string, tags map[string]string, output chan lp.CCMetric, now time.Time, tsdelta time.Duration) {
 	values := make(map[string]float64)
 	clktck, _ := sysconf.Sysconf(sysconf.SC_CLK_TCK)
 	for match, index := range m.matches {
@@ -129,23 +122,21 @@ func (m *CpustatCollector) parseStatLine(linefields []string, tags map[string]st
 	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)
+		y, err := lp.New(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)
+		y, err := lp.New("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.CCMessage) {
+func (m *CpustatCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}
@@ -171,7 +162,7 @@ func (m *CpustatCollector) Read(interval time.Duration, output chan lp.CCMessage
 		}
 	}
 
-	num_cpus_metric, err := lp.NewMessage("num_cpus",
+	num_cpus_metric, err := lp.New("num_cpus",
 		m.nodetags,
 		m.meta,
 		map[string]interface{}{"value": int(num_cpus)},

collectors/cpustatMetric.md

@@ -1,14 +1,3 @@
-<!--
----
-title: CPU usage metric collector
-description: Collect CPU metrics from `/proc/stat`
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/cpustat.md
----
--->
-
 
 ## `cpustat` collector
 
@@ -24,15 +13,14 @@ The `cpustat` collector reads data from `/proc/stat` and outputs a handful **nod
 
 Metrics:
 
-* `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`
+* `cpu_user`
+* `cpu_nice`
+* `cpu_system`
+* `cpu_idle`
+* `cpu_iowait`
+* `cpu_irq`
+* `cpu_softirq`
+* `cpu_steal`
+* `cpu_guest`
+* `cpu_guest_nice`
+* `cpu_used` = `cpu_* - cpu_idle`

collectors/customCmdMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -16,7 +9,7 @@ import (
 	"strings"
 	"time"
 
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 	influx "github.com/influxdata/line-protocol"
 )
 
@@ -82,7 +75,7 @@ var DefaultTime = func() time.Time {
 	return time.Unix(42, 0)
 }
 
-func (m *CustomCmdCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *CustomCmdCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}
@@ -106,7 +99,10 @@ func (m *CustomCmdCollector) Read(interval time.Duration, output chan lp.CCMessa
 				continue
 			}
 
-			output <- lp.FromInfluxMetric(c)
+			y := lp.FromInfluxMetric(c)
+			if err == nil {
+				output <- y
+			}
 		}
 	}
 	for _, file := range m.files {
@@ -125,7 +121,10 @@ func (m *CustomCmdCollector) Read(interval time.Duration, output chan lp.CCMessa
 			if skip {
 				continue
 			}
-			output <- lp.FromInfluxMetric(f)
+			y := lp.FromInfluxMetric(f)
+			if err == nil {
+				output <- y
+			}
 		}
 	}
 }

collectors/customCmdMetric.md

@@ -1,13 +1,3 @@
-<!--
----
-title: CustomCommand metric collector
-description: Collect messages from custom command or files
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/customcmd.md
----
--->
 
 ## `customcmd` collector
 

collectors/diskstatMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -15,21 +8,23 @@ import (
 	"syscall"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
+//	"log"
+
 const MOUNTFILE = `/proc/self/mounts`
 
 type DiskstatCollectorConfig struct {
 	ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
-	ExcludeMounts  []string `json:"exclude_mounts,omitempty"`
 }
 
 type DiskstatCollector struct {
 	metricCollector
-	config         DiskstatCollectorConfig
-	allowedMetrics map[string]bool
+	//matches map[string]int
+	config IOstatCollectorConfig
+	//devices map[string]IOstatCollectorEntry
 }
 
 func (m *DiskstatCollector) Init(config json.RawMessage) error {
@@ -38,21 +33,12 @@ func (m *DiskstatCollector) Init(config json.RawMessage) error {
 	m.meta = map[string]string{"source": m.name, "group": "Disk"}
 	m.setup()
 	if len(config) > 0 {
-		if err := json.Unmarshal(config, &m.config); err != nil {
+		err := json.Unmarshal(config, &m.config)
+		if err != nil {
 			return err
 		}
 	}
-	m.allowedMetrics = map[string]bool{
-		"disk_total":    true,
-		"disk_free":     true,
-		"part_max_used": true,
-	}
-	for _, excl := range m.config.ExcludeMetrics {
-		if _, ok := m.allowedMetrics[excl]; ok {
-			m.allowedMetrics[excl] = false
-		}
-	}
-	file, err := os.Open(MOUNTFILE)
+	file, err := os.Open(string(MOUNTFILE))
 	if err != nil {
 		cclog.ComponentError(m.name, err.Error())
 		return err
@@ -62,12 +48,12 @@ func (m *DiskstatCollector) Init(config json.RawMessage) error {
 	return nil
 }
 
-func (m *DiskstatCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *DiskstatCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}
 
-	file, err := os.Open(MOUNTFILE)
+	file, err := os.Open(string(MOUNTFILE))
 	if err != nil {
 		cclog.ComponentError(m.name, err.Error())
 		return
@@ -76,7 +62,6 @@ func (m *DiskstatCollector) Read(interval time.Duration, output chan lp.CCMessag
 
 	part_max_used := uint64(0)
 	scanner := bufio.NewScanner(file)
-mountLoop:
 	for scanner.Scan() {
 		line := scanner.Text()
 		if len(line) == 0 {
@@ -92,17 +77,13 @@ mountLoop:
 		if strings.Contains(linefields[1], "boot") {
 			continue
 		}
-
-		mountPath := strings.Replace(linefields[1], `\040`, " ", -1)
-
-		for _, excl := range m.config.ExcludeMounts {
-			if strings.Contains(mountPath, excl) {
-				continue mountLoop
-			}
+		path := strings.Replace(linefields[1], `\040`, " ", -1)
+		stat := syscall.Statfs_t{
+			Blocks: 0,
+			Bsize:  0,
+			Bfree:  0,
 		}
-
-		stat := syscall.Statfs_t{}
-		err := syscall.Statfs(mountPath, &stat)
+		err := syscall.Statfs(path, &stat)
 		if err != nil {
 			continue
 		}
@@ -111,20 +92,16 @@ mountLoop:
 		}
 		tags := map[string]string{"type": "node", "device": linefields[0]}
 		total := (stat.Blocks * uint64(stat.Bsize)) / uint64(1000000000)
-		if m.allowedMetrics["disk_total"] {
-			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
-			}
+		y, err := lp.New("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)
-		if m.allowedMetrics["disk_free"] {
-			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
-			}
+		y, err = lp.New("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
@@ -133,12 +110,10 @@ mountLoop:
 			}
 		}
 	}
-	if m.allowedMetrics["part_max_used"] {
-		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
-		}
+	y, err := lp.New("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

@@ -1,13 +1,3 @@
-<!--
----
-title: Disk usage statistics metric collector
-description: Collect metrics for various filesystems from `/proc/self/mounts`
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/diskstat.md
----
--->
 
 ## `diskstat` collector
 
@@ -16,13 +6,10 @@ hugo_path: docs/reference/cc-metric-collector/collectors/diskstat.md
     "exclude_metrics": [
       "disk_total"
     ],
-    "exclude_mounts": [
-      "slurm-tmpfs"
-    ]
   }
 ```
 
-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. Additionally, any mount point containing one of the strings specified in `exclude_mounts` will be skipped during metric collection.
+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 per device (with `device` tag):
 * `disk_total` (unit `GBytes`)

collectors/gpfsMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -20,8 +13,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 const DEFAULT_GPFS_CMD = "mmpmon"
@@ -101,7 +94,7 @@ func (m *GpfsCollector) Init(config json.RawMessage) error {
 	return nil
 }
 
-func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	// Check if already initialized
 	if !m.init {
 		return
@@ -225,7 +218,7 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 			continue
 		}
 		if y, err :=
-			lp.NewMessage(
+			lp.New(
 				"gpfs_bytes_read",
 				m.tags,
 				m.meta,
@@ -241,7 +234,7 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 			if lastBytesRead := m.lastState[filesystem].bytesRead; lastBytesRead >= 0 {
 				bwRead := float64(bytesRead-lastBytesRead) / timeDiff
 				if y, err :=
-					lp.NewMessage(
+					lp.New(
 						"gpfs_bw_read",
 						m.tags,
 						m.meta,
@@ -265,7 +258,7 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 			continue
 		}
 		if y, err :=
-			lp.NewMessage(
+			lp.New(
 				"gpfs_bytes_written",
 				m.tags,
 				m.meta,
@@ -281,7 +274,7 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 			if lastBytesWritten := m.lastState[filesystem].bytesRead; lastBytesWritten >= 0 {
 				bwWrite := float64(bytesWritten-lastBytesWritten) / timeDiff
 				if y, err :=
-					lp.NewMessage(
+					lp.New(
 						"gpfs_bw_write",
 						m.tags,
 						m.meta,
@@ -311,7 +304,7 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 				fmt.Sprintf("Read(): Failed to convert number of opens '%s' to int64: %v", key_value["_oc_"], err))
 			continue
 		}
-		if y, err := lp.NewMessage("gpfs_num_opens", m.tags, m.meta, map[string]interface{}{"value": numOpens}, timestamp); err == nil {
+		if y, err := lp.New("gpfs_num_opens", m.tags, m.meta, map[string]interface{}{"value": numOpens}, timestamp); err == nil {
 			output <- y
 		}
 
@@ -323,7 +316,7 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 				fmt.Sprintf("Read(): Failed to convert number of closes: '%s' to int64: %v", key_value["_cc_"], err))
 			continue
 		}
-		if y, err := lp.NewMessage("gpfs_num_closes", m.tags, m.meta, map[string]interface{}{"value": numCloses}, timestamp); err == nil {
+		if y, err := lp.New("gpfs_num_closes", m.tags, m.meta, map[string]interface{}{"value": numCloses}, timestamp); err == nil {
 			output <- y
 		}
 
@@ -335,7 +328,7 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 				fmt.Sprintf("Read(): Failed to convert number of reads: '%s' to int64: %v", key_value["_rdc_"], err))
 			continue
 		}
-		if y, err := lp.NewMessage("gpfs_num_reads", m.tags, m.meta, map[string]interface{}{"value": numReads}, timestamp); err == nil {
+		if y, err := lp.New("gpfs_num_reads", m.tags, m.meta, map[string]interface{}{"value": numReads}, timestamp); err == nil {
 			output <- y
 		}
 
@@ -347,7 +340,7 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 				fmt.Sprintf("Read(): Failed to convert number of writes: '%s' to int64: %v", key_value["_wc_"], err))
 			continue
 		}
-		if y, err := lp.NewMessage("gpfs_num_writes", m.tags, m.meta, map[string]interface{}{"value": numWrites}, timestamp); err == nil {
+		if y, err := lp.New("gpfs_num_writes", m.tags, m.meta, map[string]interface{}{"value": numWrites}, timestamp); err == nil {
 			output <- y
 		}
 
@@ -359,7 +352,7 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 				fmt.Sprintf("Read(): Failed to convert number of read directories: '%s' to int64: %v", key_value["_dir_"], err))
 			continue
 		}
-		if y, err := lp.NewMessage("gpfs_num_readdirs", m.tags, m.meta, map[string]interface{}{"value": numReaddirs}, timestamp); err == nil {
+		if y, err := lp.New("gpfs_num_readdirs", m.tags, m.meta, map[string]interface{}{"value": numReaddirs}, timestamp); err == nil {
 			output <- y
 		}
 
@@ -371,7 +364,7 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 				fmt.Sprintf("Read(): Failed to convert number of inode updates: '%s' to int: %v", key_value["_iu_"], err))
 			continue
 		}
-		if y, err := lp.NewMessage("gpfs_num_inode_updates", m.tags, m.meta, map[string]interface{}{"value": numInodeUpdates}, timestamp); err == nil {
+		if y, err := lp.New("gpfs_num_inode_updates", m.tags, m.meta, map[string]interface{}{"value": numInodeUpdates}, timestamp); err == nil {
 			output <- y
 		}
 
@@ -379,7 +372,7 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 		if m.config.SendTotalValues {
 			bytesTotal := bytesRead + bytesWritten
 			if y, err :=
-				lp.NewMessage("gpfs_bytes_total",
+				lp.New("gpfs_bytes_total",
 					m.tags,
 					m.meta,
 					map[string]interface{}{
@@ -392,7 +385,7 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 			}
 			iops := numReads + numWrites
 			if y, err :=
-				lp.NewMessage("gpfs_iops",
+				lp.New("gpfs_iops",
 					m.tags,
 					m.meta,
 					map[string]interface{}{
@@ -404,7 +397,7 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 			}
 			metaops := numInodeUpdates + numCloses + numOpens + numReaddirs
 			if y, err :=
-				lp.NewMessage("gpfs_metaops",
+				lp.New("gpfs_metaops",
 					m.tags,
 					m.meta,
 					map[string]interface{}{

collectors/gpfsMetric.md

@@ -1,18 +1,7 @@
-<!--
----
-title: GPFS collector
-description: Collect infos about GPFS filesystems
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/gpfs.md
----
--->
-
 ## `gpfs` collector
 
 ```json
-  "gpfs": {
+  "ibstat": {
     "mmpmon_path": "/path/to/mmpmon",
     "exclude_filesystem": [
       "fs1"

collectors/infinibandMetric.go

@@ -1,18 +1,11 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
 	"fmt"
 	"os"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 	"golang.org/x/sys/unix"
 
 	"encoding/json"
@@ -189,7 +182,7 @@ 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.CCMessage) {
+func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 
 	// Check if already initialized
 	if !m.init {
@@ -237,7 +230,7 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMess
 			// Send absolut values
 			if m.config.SendAbsoluteValues {
 				if y, err :=
-					lp.NewMessage(
+					lp.New(
 						counterDef.name,
 						info.tagSet,
 						m.meta,
@@ -255,7 +248,7 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMess
 				if counterDef.lastState >= 0 {
 					rate := float64((counterDef.currentState - counterDef.lastState)) / timeDiff
 					if y, err :=
-						lp.NewMessage(
+						lp.New(
 							counterDef.name+"_bw",
 							info.tagSet,
 							m.meta,
@@ -285,7 +278,7 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMess
 		// Send total values
 		if m.config.SendTotalValues {
 			if y, err :=
-				lp.NewMessage(
+				lp.New(
 					"ib_total",
 					info.tagSet,
 					m.meta,
@@ -298,7 +291,7 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMess
 			}
 
 			if y, err :=
-				lp.NewMessage(
+				lp.New(
 					"ib_total_pkts",
 					info.tagSet,
 					m.meta,

collectors/infinibandMetric.md

@@ -1,13 +1,3 @@
-<!--
----
-title: InfiniBand Metric collector
-description: Collect metrics for InfiniBand devices
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/infiniband.md
----
--->
 
 ## `ibstat` collector
 

collectors/iostatMetric.go

@@ -1,32 +1,25 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
 	"bufio"
+	"os"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
+
+	//	"log"
 	"encoding/json"
 	"errors"
-	"os"
 	"strconv"
 	"strings"
 	"time"
-
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
-// Konstante für den Pfad zu /proc/diskstats
 const IOSTATFILE = `/proc/diskstats`
+const IOSTAT_SYSFSPATH = `/sys/block`
 
 type IOstatCollectorConfig struct {
 	ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
-	// Neues Feld zum Ausschließen von Devices per JSON-Konfiguration
-	ExcludeDevices []string `json:"exclude_devices,omitempty"`
 }
 
 type IOstatCollectorEntry struct {
@@ -83,7 +76,7 @@ func (m *IOstatCollector) Init(config json.RawMessage) error {
 	if len(m.matches) == 0 {
 		return errors.New("no metrics to collect")
 	}
-	file, err := os.Open(IOSTATFILE)
+	file, err := os.Open(string(IOSTATFILE))
 	if err != nil {
 		cclog.ComponentError(m.name, err.Error())
 		return err
@@ -94,24 +87,17 @@ func (m *IOstatCollector) Init(config json.RawMessage) error {
 	for scanner.Scan() {
 		line := scanner.Text()
 		linefields := strings.Fields(line)
-		if len(linefields) < 3 {
-			continue
-		}
 		device := linefields[2]
-
 		if strings.Contains(device, "loop") {
 			continue
 		}
-		if _, skip := stringArrayContains(m.config.ExcludeDevices, device); skip {
-			continue
-		}
 		values := make(map[string]int64)
 		for m := range m.matches {
 			values[m] = 0
 		}
 		m.devices[device] = IOstatCollectorEntry{
 			tags: map[string]string{
-				"device": device,
+				"device": linefields[2],
 				"type":   "node",
 			},
 			lastValues: values,
@@ -121,12 +107,12 @@ func (m *IOstatCollector) Init(config json.RawMessage) error {
 	return err
 }
 
-func (m *IOstatCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *IOstatCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}
 
-	file, err := os.Open(IOSTATFILE)
+	file, err := os.Open(string(IOSTATFILE))
 	if err != nil {
 		cclog.ComponentError(m.name, err.Error())
 		return
@@ -140,16 +126,10 @@ func (m *IOstatCollector) Read(interval time.Duration, output chan lp.CCMessage)
 			continue
 		}
 		linefields := strings.Fields(line)
-		if len(linefields) < 3 {
-			continue
-		}
 		device := linefields[2]
 		if strings.Contains(device, "loop") {
 			continue
 		}
-		if _, skip := stringArrayContains(m.config.ExcludeDevices, device); skip {
-			continue
-		}
 		if _, ok := m.devices[device]; !ok {
 			continue
 		}
@@ -159,7 +139,7 @@ func (m *IOstatCollector) Read(interval time.Duration, output chan lp.CCMessage)
 				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())
+					y, err := lp.New(name, entry.tags, m.meta, map[string]interface{}{"value": int(diff)}, time.Now())
 					if err == nil {
 						output <- y
 					}

collectors/iostatMetric.md

@@ -1,30 +1,15 @@
-<!--
----
-title: IOStat Metric collector
-description: Collect metrics from `/proc/diskstats`
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/iostat.md
----
--->
 
 ## `iostat` collector
 
 ```json
   "iostat": {
     "exclude_metrics": [
-      "io_read_ms"
+      "read_ms"
     ],
-    "exclude_devices": [
-      "nvme0n1p1",
-      "nvme0n1p2",
-      "md127"
-    ]
   }
 ```
 
-The `iostat` collector reads data from `/proc/diskstats` and outputs a handful **node** metrics. If a metric or device is not required, it can be excluded from forwarding it to the sink.
+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`

collectors/ipmiMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -19,9 +12,8 @@ import (
 	"strconv"
 	"strings"
 	"time"
-
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 const IPMISENSORS_PATH = `ipmi-sensors`
@@ -62,35 +54,20 @@ func (m *IpmiCollector) Init(config json.RawMessage) error {
 	// 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
-		}
+		m.ipmitool = p
 	}
 	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
-		}
+		m.ipmisensors = p
 	}
 	if len(m.ipmitool) == 0 && len(m.ipmisensors) == 0 {
-		return errors.New("no usable IPMI reader found")
+		return errors.New("no IPMI reader found")
 	}
-
 	m.init = true
 	return nil
 }
 
-func (m *IpmiCollector) readIpmiTool(cmd string, output chan lp.CCMessage) {
+func (m *IpmiCollector) readIpmiTool(cmd string, output chan lp.CCMetric) {
 
 	// Setup ipmitool command
 	command := exec.Command(cmd, "sensor")
@@ -128,7 +105,7 @@ func (m *IpmiCollector) readIpmiTool(cmd string, output chan lp.CCMessage) {
 				unit = "Watts"
 			}
 
-			y, err := lp.NewMessage(name, map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": v}, time.Now())
+			y, err := lp.New(name, map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": v}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", unit)
 				output <- y
@@ -142,13 +119,13 @@ func (m *IpmiCollector) readIpmiTool(cmd string, output chan lp.CCMessage) {
 		cclog.ComponentError(
 			m.name,
 			fmt.Sprintf("readIpmiTool(): Failed to wait for the end of command \"%s\": %v\n", command.String(), err),
+			fmt.Sprintf("readIpmiTool(): command stderr: \"%s\"\n", string(errMsg)),
 		)
-		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.CCMessage) {
+func (m *IpmiCollector) readIpmiSensors(cmd string, output chan lp.CCMetric) {
 
 	command := exec.Command(cmd, "--comma-separated-output", "--sdr-cache-recreate")
 	command.Wait()
@@ -166,7 +143,7 @@ func (m *IpmiCollector) readIpmiSensors(cmd string, output chan lp.CCMessage) {
 			v, err := strconv.ParseFloat(lv[3], 64)
 			if err == nil {
 				name := strings.ToLower(strings.Replace(lv[1], " ", "_", -1))
-				y, err := lp.NewMessage(name, map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": v}, time.Now())
+				y, err := lp.New(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])
@@ -178,7 +155,7 @@ func (m *IpmiCollector) readIpmiSensors(cmd string, output chan lp.CCMessage) {
 	}
 }
 
-func (m *IpmiCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *IpmiCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 
 	// Check if already initialized
 	if !m.init {

collectors/ipmiMetric.md

@@ -1,13 +1,3 @@
-<!--
----
-title: IPMI Metric collector
-description: Collect metrics using ipmitool or ipmi-sensors
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/ipmi.md
----
--->
 
 ## `ipmistat` collector
 

collectors/likwidMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 /*
@@ -31,9 +24,9 @@ import (
 	"time"
 	"unsafe"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 	agg "github.com/ClusterCockpit/cc-metric-collector/internal/metricAggregator"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 	topo "github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
 	"github.com/NVIDIA/go-nvml/pkg/dl"
 	"github.com/fsnotify/fsnotify"
@@ -50,7 +43,7 @@ const (
 type LikwidCollectorMetricConfig struct {
 	Name               string `json:"name"` // Name of the metric
 	Calc               string `json:"calc"` // Calculation for the metric using
-	Type               string `json:"type"` // Metric type (aka node, socket, hwthread, ...)
+	Type               string `json:"type"` // Metric type (aka node, socket, cpu, ...)
 	Publish            bool   `json:"publish"`
 	SendCoreTotalVal   bool   `json:"send_core_total_values,omitempty"`
 	SendSocketTotalVal bool   `json:"send_socket_total_values,omitempty"`
@@ -98,8 +91,6 @@ type LikwidCollector struct {
 	running       bool
 	initialized   bool
 	needs_reinit  bool
-	myuid         int
-	lock_err_once bool
 	likwidGroups  map[C.int]LikwidEventsetConfig
 	lock          sync.Mutex
 	measureThread thread.Thread
@@ -197,8 +188,12 @@ func getBaseFreq() float64 {
 	}
 
 	if math.IsNaN(freq) {
-		C.timer_init()
-		freq = float64(C.timer_getCycleClock()) / 1e3
+		C.power_init(0)
+		info := C.get_powerInfo()
+		if float64(info.baseFrequency) != 0 {
+			freq = float64(info.baseFrequency)
+		}
+		C.power_finalize()
 	}
 	return freq * 1e3
 }
@@ -209,7 +204,6 @@ func (m *LikwidCollector) Init(config json.RawMessage) error {
 	m.initialized = false
 	m.needs_reinit = true
 	m.running = false
-	m.myuid = os.Getuid()
 	m.config.AccessMode = LIKWID_DEF_ACCESSMODE
 	m.config.LibraryPath = LIKWID_LIB_NAME
 	m.config.LockfilePath = LIKWID_DEF_LOCKFILE
@@ -380,41 +374,19 @@ func (m *LikwidCollector) takeMeasurement(evidx int, evset LikwidEventsetConfig,
 	}
 	defer watcher.Close()
 	if len(m.config.LockfilePath) > 0 {
-		// Check if the lock file exists
 		info, err := os.Stat(m.config.LockfilePath)
-		if os.IsNotExist(err) {
-			// Create the lock file if it does not exist
-			file, createErr := os.Create(m.config.LockfilePath)
-			if createErr != nil {
-				return true, fmt.Errorf("failed to create lock file: %v", createErr)
-			}
-			file.Close()
-			info, err = os.Stat(m.config.LockfilePath) // Recheck the file after creation
-		}
 		if err != nil {
 			return true, err
 		}
-		// Check file ownership
 		uid := info.Sys().(*syscall.Stat_t).Uid
-		if uid != uint32(m.myuid) {
+		if uid != uint32(os.Getuid()) {
 			usr, err := user.LookupId(fmt.Sprint(uid))
 			if err == nil {
-				err = fmt.Errorf("access to performance counters locked by %s", usr.Username)
+				return true, fmt.Errorf("Access to performance counters locked by %s", usr.Username)
 			} else {
-				err = fmt.Errorf("access to performance counters locked by %d", uid)
+				return true, fmt.Errorf("Access to performance counters locked by %d", uid)
 			}
-			// delete error if we already returned the error once.
-			if !m.lock_err_once {
-				m.lock_err_once = true
-			} else {
-				err = nil
-			}
-			return true, err
 		}
-		// reset lock_err_once
-		m.lock_err_once = false
-
-		// Add the lock file to the watcher
 		err = watcher.Add(m.config.LockfilePath)
 		if err != nil {
 			cclog.ComponentError(m.name, err.Error())
@@ -452,7 +424,9 @@ func (m *LikwidCollector) takeMeasurement(evidx int, evset LikwidEventsetConfig,
 		gid = C.perfmon_addEventSet(evset.estr)
 	}
 	if gid < 0 {
-		return true, fmt.Errorf("failed to add events %s, id %d, error %d", evset.go_estr, evidx, gid)
+		return true, fmt.Errorf("failed to add events %s, error %d", evset.go_estr, gid)
+	} else {
+		evset.gid = gid
 	}
 
 	// Setup all performance monitoring counters of an eventSet
@@ -563,12 +537,11 @@ func (m *LikwidCollector) takeMeasurement(evidx int, evset LikwidEventsetConfig,
 }
 
 // Get all measurement results for an event set, derive the metric values out of the measurement results and send it
-func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interval time.Duration, output chan lp.CCMessage) error {
+func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interval time.Duration, output chan lp.CCMetric) error {
 	invClock := float64(1.0 / m.basefreq)
 
 	for _, tid := range m.cpu2tid {
 		evset.results[tid]["inverseClock"] = invClock
-		evset.results[tid]["gotime"] = interval.Seconds()
 	}
 
 	// Go over the event set metrics, derive the value out of the event:counter values and send it
@@ -597,7 +570,7 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 				if !math.IsNaN(value) && metric.Publish {
 					fields := map[string]interface{}{"value": value}
 					y, err :=
-						lp.NewMessage(
+						lp.New(
 							metric.Name,
 							map[string]string{
 								"type": metric.Type,
@@ -634,7 +607,7 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 
 			for coreID, value := range totalCoreValues {
 				y, err :=
-					lp.NewMessage(
+					lp.New(
 						metric.Name,
 						map[string]string{
 							"type":    "core",
@@ -671,7 +644,7 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 
 			for socketID, value := range totalSocketValues {
 				y, err :=
-					lp.NewMessage(
+					lp.New(
 						metric.Name,
 						map[string]string{
 							"type":    "socket",
@@ -706,7 +679,7 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 			}
 
 			y, err :=
-				lp.NewMessage(
+				lp.New(
 					metric.Name,
 					map[string]string{
 						"type": "node",
@@ -731,7 +704,7 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 }
 
 // Go over the global metrics, derive the value out of the event sets' metric values and send it
-func (m *LikwidCollector) calcGlobalMetrics(groups []LikwidEventsetConfig, interval time.Duration, output chan lp.CCMessage) error {
+func (m *LikwidCollector) calcGlobalMetrics(groups []LikwidEventsetConfig, interval time.Duration, output chan lp.CCMetric) error {
 	// Send all metrics with same time stamp
 	// This function does only computiation, counter measurement is done before
 	now := time.Now()
@@ -752,7 +725,6 @@ func (m *LikwidCollector) calcGlobalMetrics(groups []LikwidEventsetConfig, inter
 						params[mname] = mres
 					}
 				}
-				params["gotime"] = interval.Seconds()
 				// Evaluate the metric
 				value, err := agg.EvalFloat64Condition(metric.Calc, params)
 				if err != nil {
@@ -766,7 +738,7 @@ func (m *LikwidCollector) calcGlobalMetrics(groups []LikwidEventsetConfig, inter
 				if !math.IsNaN(value) {
 					if metric.Publish {
 						y, err :=
-							lp.NewMessage(
+							lp.New(
 								metric.Name,
 								map[string]string{
 									"type": metric.Type,
@@ -794,7 +766,7 @@ func (m *LikwidCollector) calcGlobalMetrics(groups []LikwidEventsetConfig, inter
 	return nil
 }
 
-func (m *LikwidCollector) ReadThread(interval time.Duration, output chan lp.CCMessage) {
+func (m *LikwidCollector) ReadThread(interval time.Duration, output chan lp.CCMetric) {
 	var err error = nil
 	groups := make([]LikwidEventsetConfig, 0)
 
@@ -814,17 +786,15 @@ func (m *LikwidCollector) ReadThread(interval time.Duration, output chan lp.CCMe
 		if !skip {
 			// read measurements and derive event set metrics
 			m.calcEventsetMetrics(e, interval, output)
-			groups = append(groups, e)
 		}
+		groups = append(groups, e)
 	}
-	if len(groups) > 0 {
-		// calculate global metrics
-		m.calcGlobalMetrics(groups, interval, output)
-	}
+	// calculate global metrics
+	m.calcGlobalMetrics(groups, interval, output)
 }
 
 // main read function taking multiple measurement rounds, each 'interval' seconds long
-func (m *LikwidCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *LikwidCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}

collectors/likwidMetric.md

@@ -1,13 +1,3 @@
-<!--
----
-title: LIKWID collector
-description: Collect hardware performance events and metrics using LIKWID
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/likwid.md
----
--->
 
 ## `likwid` collector
 
@@ -25,7 +15,7 @@ The `likwid` collector is probably the most complicated collector. The LIKWID li
       {
         "events" : {
           "COUNTER0": "EVENT0",
-          "COUNTER1": "EVENT1"
+          "COUNTER1": "EVENT1",
         },
         "metrics" : [
           {
@@ -37,7 +27,7 @@ The `likwid` collector is probably the most complicated collector. The LIKWID li
           }
         ]
       }
-    ],
+    ]
     "globalmetrics" : [
       {
         "name": "global_sum",
@@ -142,9 +132,6 @@ In some cases LIKWID returns `0.0` for some events that are further used in proc
 
 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.

collectors/loadavgMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -15,16 +8,18 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
+//
 // 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 {
@@ -73,15 +68,17 @@ func (m *LoadavgCollector) Init(config json.RawMessage) error {
 	return nil
 }
 
-func (m *LoadavgCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *LoadavgCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}
 	buffer, err := os.ReadFile(LOADAVGFILE)
 	if err != nil {
-		cclog.ComponentError(
-			m.name,
-			fmt.Sprintf("Read(): Failed to read file '%s': %v", LOADAVGFILE, err))
+		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to read file '%s': %v", LOADAVGFILE, err))
+		}
 		return
 	}
 	now := time.Now()
@@ -99,7 +96,7 @@ func (m *LoadavgCollector) Read(interval time.Duration, output chan lp.CCMessage
 		if m.load_skips[i] {
 			continue
 		}
-		y, err := lp.NewMessage(name, m.tags, m.meta, map[string]interface{}{"value": x}, now)
+		y, err := lp.New(name, m.tags, m.meta, map[string]interface{}{"value": x}, now)
 		if err == nil {
 			output <- y
 		}
@@ -118,7 +115,7 @@ func (m *LoadavgCollector) Read(interval time.Duration, output chan lp.CCMessage
 		if m.proc_skips[i] {
 			continue
 		}
-		y, err := lp.NewMessage(name, m.tags, m.meta, map[string]interface{}{"value": x}, now)
+		y, err := lp.New(name, m.tags, m.meta, map[string]interface{}{"value": x}, now)
 		if err == nil {
 			output <- y
 		}

collectors/loadavgMetric.md

@@ -1,14 +1,3 @@
-<!--
----
-title: Load average metric collector
-description: Collect metrics from `/proc/loadavg`
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/loadavg.md
----
--->
-
 
 ## `loadavg` collector
 

collectors/lustreMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -17,8 +10,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 const LUSTRE_SYSFS = `/sys/fs/lustre`
@@ -384,7 +377,7 @@ func (m *LustreCollector) Init(config json.RawMessage) error {
 	return nil
 }
 
-func (m *LustreCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *LustreCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}
@@ -395,7 +388,7 @@ func (m *LustreCollector) Read(interval time.Duration, output chan lp.CCMessage)
 		for _, def := range m.definitions {
 			var use_x int64
 			var err error
-			var y lp.CCMessage
+			var y lp.CCMetric
 			x, err := getMetricData(data, def.lineprefix, def.lineoffset)
 			if err == nil {
 				use_x = x
@@ -406,19 +399,19 @@ func (m *LustreCollector) Read(interval time.Duration, output chan lp.CCMessage)
 			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())
+				y, err = lp.New(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())
+				y, err = lp.New(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())
+				y, err = lp.New(def.name, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
 			}
 			if err == nil {
 				y.AddTag("device", device)

collectors/lustreMetric.md

@@ -1,14 +1,3 @@
-<!--
----
-title: Lustre filesystem metric collector
-description: Collect metrics for Lustre filesystems
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/lustre.md
----
--->
-
 
 ## `lustrestat` collector
 
@@ -54,4 +43,4 @@ Metrics:
 * `lustre_statfs_diff` (if `send_diff_values == true`)
 * `lustre_inode_permission_diff` (if `send_diff_values == true`)
 
-This collector adds an `device` tag.
+This collector adds an `device` tag.

collectors/memstatMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -19,8 +12,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 const MEMSTATFILE = "/proc/meminfo"
@@ -166,7 +159,7 @@ func (m *MemstatCollector) Init(config json.RawMessage) error {
 	return err
 }
 
-func (m *MemstatCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *MemstatCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}
@@ -182,7 +175,7 @@ func (m *MemstatCollector) Read(interval time.Duration, output chan lp.CCMessage
 				}
 			}
 
-			y, err := lp.NewMessage(name, tags, m.meta, map[string]interface{}{"value": value}, time.Now())
+			y, err := lp.New(name, tags, m.meta, map[string]interface{}{"value": value}, time.Now())
 			if err == nil {
 				if len(unit) > 0 {
 					y.AddMeta("unit", unit)
@@ -215,7 +208,7 @@ func (m *MemstatCollector) Read(interval time.Duration, output chan lp.CCMessage
 					}
 				}
 			}
-			y, err := lp.NewMessage("mem_used", tags, m.meta, map[string]interface{}{"value": memUsed}, time.Now())
+			y, err := lp.New("mem_used", tags, m.meta, map[string]interface{}{"value": memUsed}, time.Now())
 			if err == nil {
 				if len(unit) > 0 {
 					y.AddMeta("unit", unit)

collectors/memstatMetric.md

@@ -1,14 +1,3 @@
-<!--
----
-title: Memory statistics metric collector
-description: Collect metrics from `/proc/meminfo`
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/memstat.md
----
--->
-
 
 ## `memstat` collector
 

collectors/metricCollector.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -12,7 +5,7 @@ import (
 	"fmt"
 	"time"
 
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 type MetricCollector interface {
@@ -20,8 +13,8 @@ type MetricCollector interface {
 	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
+	Read(duration time.Duration, output chan lp.CCMetric) // Read metrics from metric collector
+	Close()                                               // Close / finish metric collector
 }
 
 type metricCollector struct {

collectors/netstatMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -16,17 +9,16 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 const NETSTATFILE = "/proc/net/dev"
 
 type NetstatCollectorConfig struct {
-	IncludeDevices     []string            `json:"include_devices"`
-	SendAbsoluteValues bool                `json:"send_abs_values"`
-	SendDerivedValues  bool                `json:"send_derived_values"`
-	InterfaceAliases   map[string][]string `json:"interface_aliases,omitempty"`
+	IncludeDevices     []string `json:"include_devices"`
+	SendAbsoluteValues bool     `json:"send_abs_values"`
+	SendDerivedValues  bool     `json:"send_derived_values"`
 }
 
 type NetstatCollectorMetric struct {
@@ -40,26 +32,9 @@ type NetstatCollectorMetric struct {
 
 type NetstatCollector struct {
 	metricCollector
-	config           NetstatCollectorConfig
-	aliasToCanonical map[string]string
-	matches          map[string][]NetstatCollectorMetric
-	lastTimestamp    time.Time
-}
-
-func (m *NetstatCollector) buildAliasMapping() {
-	m.aliasToCanonical = make(map[string]string)
-	for canon, aliases := range m.config.InterfaceAliases {
-		for _, alias := range aliases {
-			m.aliasToCanonical[alias] = canon
-		}
-	}
-}
-
-func getCanonicalName(raw string, aliasToCanonical map[string]string) string {
-	if canon, ok := aliasToCanonical[raw]; ok {
-		return canon
-	}
-	return raw
+	config        NetstatCollectorConfig
+	matches       map[string][]NetstatCollectorMetric
+	lastTimestamp time.Time
 }
 
 func (m *NetstatCollector) Init(config json.RawMessage) error {
@@ -102,8 +77,6 @@ func (m *NetstatCollector) Init(config json.RawMessage) error {
 		}
 	}
 
-	m.buildAliasMapping()
-
 	// Check access to net statistic file
 	file, err := os.Open(NETSTATFILE)
 	if err != nil {
@@ -124,20 +97,18 @@ func (m *NetstatCollector) Init(config json.RawMessage) error {
 		// Split line into fields
 		f := strings.Fields(l)
 
-		// Get raw and canonical names
-		raw := strings.Trim(f[0], ": ")
-		canonical := getCanonicalName(raw, m.aliasToCanonical)
+		// Get net device entry
+		dev := strings.Trim(f[0], ": ")
 
 		// Check if device is a included device
-		if _, ok := stringArrayContains(m.config.IncludeDevices, canonical); ok {
-			// Tag will contain original device name (raw).
-			tags := map[string]string{"stype": "network", "stype-id": raw, "type": "node"}
+		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[canonical] = []NetstatCollectorMetric{
+			m.matches[dev] = []NetstatCollectorMetric{
 				{
 					name:       "net_bytes_in",
 					index:      fieldReceiveBytes,
@@ -172,6 +143,7 @@ func (m *NetstatCollector) Init(config json.RawMessage) error {
 				},
 			}
 		}
+
 	}
 
 	if len(m.matches) == 0 {
@@ -181,7 +153,7 @@ func (m *NetstatCollector) Init(config json.RawMessage) error {
 	return nil
 }
 
-func (m *NetstatCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *NetstatCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}
@@ -192,7 +164,7 @@ func (m *NetstatCollector) Read(interval time.Duration, output chan lp.CCMessage
 	// Save current timestamp
 	m.lastTimestamp = now
 
-	file, err := os.Open(NETSTATFILE)
+	file, err := os.Open(string(NETSTATFILE))
 	if err != nil {
 		cclog.ComponentError(m.name, err.Error())
 		return
@@ -211,12 +183,11 @@ func (m *NetstatCollector) Read(interval time.Duration, output chan lp.CCMessage
 		// Split line into fields
 		f := strings.Fields(l)
 
-		// Get raw and canonical names
-		raw := strings.Trim(f[0], ":")
-		canonical := getCanonicalName(raw, m.aliasToCanonical)
+		// Get net device entry
+		dev := strings.Trim(f[0], ":")
 
 		// Check if device is a included device
-		if devmetrics, ok := m.matches[canonical]; ok {
+		if devmetrics, ok := m.matches[dev]; ok {
 			for i := range devmetrics {
 				metric := &devmetrics[i]
 
@@ -226,14 +197,14 @@ func (m *NetstatCollector) Read(interval time.Duration, output chan lp.CCMessage
 					continue
 				}
 				if m.config.SendAbsoluteValues {
-					if y, err := lp.NewMessage(metric.name, metric.tags, metric.meta, map[string]interface{}{"value": v}, now); err == nil {
+					if y, err := lp.New(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 {
+						if y, err := lp.New(metric.name+"_bw", metric.tags, metric.meta_rates, map[string]interface{}{"value": rate}, now); err == nil {
 							output <- y
 						}
 					}

collectors/netstatMetric.md

@@ -1,32 +1,17 @@
-<!--
----
-title: Network device metric collector
-description: Collect metrics for network devices through procfs
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/netstat.md
----
--->
 
 ## `netstat` collector
 
 ```json
   "netstat": {
     "include_devices": [
-      "eth0",
-      "eno1"
+      "eth0"
     ],
-    "send_abs_values": true,
-    "send_derived_values": true,
-    "interface_aliases": {
-      "eno1": ["eno1np0", "eno1_alt"],
-      "eth0": ["eth0_alias"]
-    }
+    "send_abs_values" : true,
+    "send_derived_values" : true
   }
 ```
 
-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. Optionally, you can define an interface_aliases mapping. For each canonical device (as listed in include_devices), you may provide an array of aliases that may be reported by the system. When an alias is detected, it is preferred for matching, while the output tag stype-id always shows the actual system-reported name.
+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:
 * `net_bytes_in` (`unit=bytes`)
@@ -39,3 +24,4 @@ Metrics:
 * `net_pkts_out_bw` (`unit=packets/sec` if `send_derived_values == true`)
 
 The device name is added as tag `stype=network,stype-id=<device>`.
+

collectors/nfs3Metric.md

@@ -1,14 +1,3 @@
-<!--
----
-title: NFS network filesystem (v3) metric collector
-description: Collect metrics for NFS network filesystems in version 3
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/nfs3.md
----
--->
-
 
 ## `nfs3stat` collector
 

collectors/nfs4Metric.md

@@ -1,14 +1,3 @@
-<!--
----
-title: NFS network filesystem (v4) metric collector
-description: Collect metrics for NFS network filesystems in version 4
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/nfs4.md
----
--->
-
 
 ## `nfs4stat` collector
 

collectors/nfsMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -18,7 +11,7 @@ import (
 	"strings"
 	"time"
 
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 // First part contains the code for the general NfsCollector.
@@ -125,7 +118,7 @@ func (m *nfsCollector) MainInit(config json.RawMessage) error {
 	return nil
 }
 
-func (m *nfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *nfsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}
@@ -147,7 +140,7 @@ func (m *nfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 			continue
 		}
 		value := data.current - data.last
-		y, err := lp.NewMessage(fmt.Sprintf("%s_%s", prefix, name), m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
+		y, err := lp.New(fmt.Sprintf("%s_%s", prefix, name), m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
 		if err == nil {
 			y.AddMeta("version", m.version)
 			output <- y

collectors/nfsiostatMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -16,8 +9,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 // These are the fields we read from the JSON configuration
@@ -25,20 +18,17 @@ type NfsIOStatCollectorConfig struct {
 	ExcludeMetrics          []string `json:"exclude_metrics,omitempty"`
 	ExcludeFilesystem       []string `json:"exclude_filesystem,omitempty"`
 	UseServerAddressAsSType bool     `json:"use_server_as_stype,omitempty"`
-	SendAbsoluteValues      bool     `json:"send_abs_values"`
-	SendDerivedValues       bool     `json:"send_derived_values"`
 }
 
 // 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'
-	lastTimestamp time.Time
+	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\.]+`)
@@ -91,6 +81,7 @@ func (m *NfsIOStatCollector) readNfsiostats() map[string]map[string]int64 {
 							data[current[m.key]][name] = val
 						}
 					}
+
 				}
 				current = nil
 			}
@@ -107,9 +98,6 @@ func (m *NfsIOStatCollector) Init(config json.RawMessage) error {
 	m.meta = map[string]string{"source": m.name, "group": "NFS", "unit": "bytes"}
 	m.tags = map[string]string{"type": "node"}
 	m.config.UseServerAddressAsSType = false
-	// Set default configuration
-	m.config.SendAbsoluteValues = true
-	m.config.SendDerivedValues = false
 	if len(config) > 0 {
 		err = json.Unmarshal(config, &m.config)
 		if err != nil {
@@ -122,15 +110,12 @@ func (m *NfsIOStatCollector) Init(config json.RawMessage) error {
 		m.key = "server"
 	}
 	m.data = m.readNfsiostats()
-	m.lastTimestamp = time.Now()
 	m.init = true
 	return err
 }
 
-func (m *NfsIOStatCollector) Read(interval time.Duration, output chan lp.CCMessage) {
-	now := time.Now()
-	timeDiff := now.Sub(m.lastTimestamp).Seconds()
-	m.lastTimestamp = now
+func (m *NfsIOStatCollector) Read(interval time.Duration, output chan lp.CCMetric) {
+	timestamp := time.Now()
 
 	// Get the current values for all mountpoints
 	newdata := m.readNfsiostats()
@@ -138,30 +123,21 @@ func (m *NfsIOStatCollector) Read(interval time.Duration, output chan lp.CCMessa
 	for mntpoint, values := range newdata {
 		// Was the mount point already present in the last iteration
 		if old, ok := m.data[mntpoint]; ok {
-			for name, newVal := range values {
-				if m.config.SendAbsoluteValues {
-					msg, err := lp.NewMessage(fmt.Sprintf("nfsio_%s", name), m.tags, m.meta, map[string]interface{}{"value": newVal}, now)
-					if err == nil {
-						msg.AddTag("stype", "filesystem")
-						msg.AddTag("stype-id", mntpoint)
-						output <- msg
+			// Calculate the difference of old and new values
+			for i := range values {
+				x := values[i] - old[i]
+				y, err := lp.New(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
 				}
-				if m.config.SendDerivedValues {
-					rate := float64(newVal-old[name]) / timeDiff
-					msg, err := lp.NewMessage(fmt.Sprintf("nfsio_%s_bw", name), m.tags, m.meta, map[string]interface{}{"value": rate}, now)
-					if err == nil {
-						if strings.HasPrefix(name, "page") {
-							msg.AddMeta("unit", "4K_pages/s")
-						} else {
-							msg.AddMeta("unit", "bytes/sec")
-						}
-						msg.AddTag("stype", "filesystem")
-						msg.AddTag("stype-id", mntpoint)
-						output <- msg
-					}
-				}
-				old[name] = newVal
+				// 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
@@ -178,9 +154,10 @@ func (m *NfsIOStatCollector) Read(interval time.Duration, output chan lp.CCMessa
 			}
 		}
 		if !found {
-			delete(m.data, mntpoint)
+			m.data[mntpoint] = nil
 		}
 	}
+
 }
 
 func (m *NfsIOStatCollector) Close() {

collectors/nfsiostatMetric.md

@@ -1,31 +1,18 @@
-<!--
----
-title: NFS network filesystem metrics from procfs
-description: Collect NFS network filesystem metrics for mounts from `/proc/self/mountstats`
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/nfsio.md
----
--->
-
 ## `nfsiostat` collector
 
 ```json
   "nfsiostat": {
     "exclude_metrics": [
-      "oread", "pageread"
+      "nfsio_oread"
     ],
-    "exclude_filesystems": [
-      "/mnt"
+    "exclude_filesystems" : [
+        "/mnt",
     ],
-    "use_server_as_stype": false,
-    "send_abs_values": false,
-    "send_derived_values": true
+    "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. **Note:** When excluding metrics, you must provide the base metric name (e.g. pageread) without the nfsio_ prefix. This exclusion applies to both absolute and derived values.
+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
@@ -37,9 +24,4 @@ Metrics:
 * `nfsio_nfsread`: Bytes transferred for reading from the server
 * `nfsio_nfswrite`: Pages transferred by writing to the server
 
-For each of these, if derived values are enabled, an additional metric is sent with the `_bw` suffix, which represents the rate:
-
-  * For normal byte metrics: `unit=bytes/sec`
-  * For page metrics: `unit=4K_pages/s`
-
-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.
+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

@@ -10,15 +10,10 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
-type NUMAStatsCollectorConfig struct {
-	SendAbsoluteValues bool `json:"send_abs_values"`
-	SendDerivedValues  bool `json:"send_derived_values"`
-}
-
 // Non-Uniform Memory Access (NUMA) policy hit/miss statistics
 //
 // numa_hit:
@@ -52,16 +47,13 @@ type NUMAStatsCollectorConfig struct {
 //
 // See: https://www.kernel.org/doc/html/latest/admin-guide/numastat.html
 type NUMAStatsCollectorTopolgy struct {
-	file           string
-	tagSet         map[string]string
-	previousValues map[string]int64
+	file   string
+	tagSet map[string]string
 }
 
 type NUMAStatsCollector struct {
 	metricCollector
-	topology      []NUMAStatsCollectorTopolgy
-	config        NUMAStatsCollectorConfig
-	lastTimestamp time.Time
+	topology []NUMAStatsCollectorTopolgy
 }
 
 func (m *NUMAStatsCollector) Init(config json.RawMessage) error {
@@ -78,14 +70,6 @@ func (m *NUMAStatsCollector) Init(config json.RawMessage) error {
 		"group":  "NUMA",
 	}
 
-	m.config.SendAbsoluteValues = true
-	if len(config) > 0 {
-		err := json.Unmarshal(config, &m.config)
-		if err != nil {
-			return fmt.Errorf("unable to unmarshal numastat configuration: %s", err.Error())
-		}
-	}
-
 	// Loop for all NUMA node directories
 	base := "/sys/devices/system/node/node"
 	globPattern := base + "[0-9]*"
@@ -102,9 +86,8 @@ func (m *NUMAStatsCollector) Init(config json.RawMessage) error {
 		file := filepath.Join(dir, "numastat")
 		m.topology = append(m.topology,
 			NUMAStatsCollectorTopolgy{
-				file:           file,
-				tagSet:         map[string]string{"memoryDomain": node},
-				previousValues: make(map[string]int64),
+				file:   file,
+				tagSet: map[string]string{"memoryDomain": node},
 			})
 	}
 
@@ -114,32 +97,28 @@ func (m *NUMAStatsCollector) Init(config json.RawMessage) error {
 	return nil
 }
 
-func (m *NUMAStatsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *NUMAStatsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}
 
-	now := time.Now()
-	timeDiff := now.Sub(m.lastTimestamp).Seconds()
-	m.lastTimestamp = now
-
 	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))
-			continue
+			return
 		}
 		scanner := bufio.NewScanner(file)
 
 		// Read line by line
 		for scanner.Scan() {
-			line := scanner.Text()
-			split := strings.Fields(line)
+			split := strings.Fields(scanner.Text())
 			if len(split) != 2 {
 				continue
 			}
@@ -151,38 +130,18 @@ func (m *NUMAStatsCollector) Read(interval time.Duration, output chan lp.CCMessa
 					fmt.Sprintf("Read(): Failed to convert %s='%s' to int64: %v", key, split[1], err))
 				continue
 			}
-
-			if m.config.SendAbsoluteValues {
-				msg, err := lp.NewMetric(
-					"numastats_"+key,
-					t.tagSet,
-					m.meta,
-					value,
-					now,
-				)
-				if err == nil {
-					output <- msg
-				}
-			}
-
-			if m.config.SendDerivedValues {
-				prev, ok := t.previousValues[key]
-				if ok {
-					rate := float64(value-prev) / timeDiff
-					msg, err := lp.NewMetric(
-						"numastats_"+key+"_rate",
-						t.tagSet,
-						m.meta,
-						rate,
-						now,
-					)
-					if err == nil {
-						output <- msg
-					}
-				}
-				t.previousValues[key] = value
+			y, err := lp.New(
+				"numastats_"+key,
+				t.tagSet,
+				m.meta,
+				map[string]interface{}{"value": value},
+				now,
+			)
+			if err == nil {
+				output <- y
 			}
 		}
+
 		file.Close()
 	}
 }

collectors/numastatsMetric.md

@@ -1,21 +1,8 @@
-<!--
----
-title: NUMAStat collector
-description: Collect infos about NUMA domains
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/numastat.md
----
--->
 
 ## `numastat` collector
 
 ```json
-  "numastats": {
-    "send_abs_values" : true,
-    "send_derived_values" : true
-}
+  "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>
@@ -28,9 +15,3 @@ Metrics:
 * `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.
-* `numastats_numa_hit_rate` (if `send_derived_values == true`): Derived rate value per second.
-* `numastats_numa_miss_rate` (if `send_derived_values == true`): Derived rate value per second.
-* `numastats_numa_foreign_rate` (if `send_derived_values == true`): Derived rate value per second.
-* `numastats_local_node_rate` (if `send_derived_values == true`): Derived rate value per second.
-* `numastats_other_node_rate` (if `send_derived_values == true`): Derived rate value per second.
-* `numastats_interleave_hit_rate` (if `send_derived_values == true`): Derived rate value per second.

collectors/nvidiaMetric.md

@@ -1,13 +1,3 @@
-<!--
----
-title: "Nvidia NVML metric collector"
-description: Collect metrics for Nvidia GPUs using the NVML
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/nvidia.md
----
--->
 
 ## `nvidia` collector
 
@@ -82,8 +72,5 @@ Metrics:
 * `nv_nvlink_ecc_errors`
 * `nv_nvlink_replay_errors`
 * `nv_nvlink_recovery_errors`
-* `nv_energy`
-* `nv_energy_abs`
-* `nv_average_power`
 
-Some metrics add the additional sub type tag (`stype`) like the `nv_nvlink_*` metrics set `stype=nvlink,stype-id=<link_number>`. 
+Some metrics add the additional sub type tag (`stype`) like the `nv_nvlink_*` metrics set `stype=nvlink,stype-id=<link_number>`. 

collectors/raplMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -16,8 +9,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 // running average power limit (RAPL) monitoring attributes for a zone
@@ -221,7 +214,7 @@ func (m *RAPLCollector) Init(config json.RawMessage) error {
 
 // 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) {
+func (m *RAPLCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 
 	for i := range m.RAPLZoneInfo {
 		p := &m.RAPLZoneInfo[i]
@@ -244,7 +237,7 @@ func (m *RAPLCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 				timeDiff := energyTimestamp.Sub(p.energyTimestamp)
 				averagePower := float64(energyDiff) / float64(timeDiff.Microseconds())
 
-				y, err := lp.NewMessage(
+				y, err := lp.New(
 					"rapl_average_power",
 					p.tags,
 					m.meta,

collectors/raplMetric.md

@@ -1,20 +1,11 @@
-<!--
----
-title: RAPL metric collector
-description: Collect energy data through the RAPL sysfs interface
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/rapl.md
----
--->
-
-## `rapl` collector
+# Running average power limit (RAPL) metric 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.
 
+## Configuration
+
 ```json
   "rapl": {
     "exclude_device_by_id": ["0:1", "0:2"],
@@ -22,5 +13,6 @@ The Likwid metric collector provides similar functionality.
   }
 ```
 
-Metrics:
+## 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

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -13,8 +6,8 @@ import (
 	"fmt"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 	"github.com/ClusterCockpit/go-rocm-smi/pkg/rocm_smi"
 )
 
@@ -169,7 +162,7 @@ func (m *RocmSmiCollector) Init(config json.RawMessage) error {
 
 // 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) {
+func (m *RocmSmiCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	// Create a sample metric
 	timestamp := time.Now()
 
@@ -182,119 +175,119 @@ func (m *RocmSmiCollector) Read(interval time.Duration, output chan lp.CCMessage
 
 		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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("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)
+			y, err := lp.New("rocm_d1_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
@@ -302,7 +295,7 @@ func (m *RocmSmiCollector) Read(interval time.Duration, output chan lp.CCMessage
 		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)
+				y, err := lp.New("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))

collectors/rocmsmiMetric.md

@@ -1,14 +1,3 @@
-<!--
----
-title: "ROCm SMI metric collector"
-description: Collect metrics for AMD GPUs using the SMI library
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/rocmsmi.md
----
--->
-
 
 ## `rocm_smi` collector
 

collectors/sampleMetric.go

@@ -1,18 +1,11 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
 	"encoding/json"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 // These are the fields we read from the JSON configuration
@@ -39,7 +32,7 @@ type SampleCollector struct {
 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"
+	m.name = "InternalCollector"
 	// This is for later use, also call it early
 	m.setup()
 	// Tell whether the collector should be run in parallel with others (reading files, ...)
@@ -81,7 +74,7 @@ func (m *SampleCollector) Init(config json.RawMessage) error {
 
 // 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) {
+func (m *SampleCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	// Create a sample metric
 	timestamp := time.Now()
 
@@ -92,7 +85,7 @@ func (m *SampleCollector) Read(interval time.Duration, output chan lp.CCMessage)
 	// stop := readState()
 	// value = (stop - start) / interval.Seconds()
 
-	y, err := lp.NewMessage("sample_metric", m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
+	y, err := lp.New("sample_metric", m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
 	if err == nil {
 		// Send it to output channel
 		output <- y

collectors/sampleTimerMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -12,8 +5,8 @@ import (
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 // These are the fields we read from the JSON configuration
@@ -32,7 +25,7 @@ type SampleTimerCollector struct {
 	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
+	output   chan lp.CCMetric           // own internal output channel
 }
 
 func (m *SampleTimerCollector) Init(name string, config json.RawMessage) error {
@@ -107,14 +100,14 @@ func (m *SampleTimerCollector) ReadMetrics(timestamp time.Time) {
 	// stop := readState()
 	// value = (stop - start) / interval.Seconds()
 
-	y, err := lp.NewMessage("sample_metric", m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
+	y, err := lp.New("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) {
+func (m *SampleTimerCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	// Capture output channel
 	m.output = output
 }

collectors/schedstatMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -17,8 +10,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 const SCHEDSTATFILE = `/proc/schedstat`
@@ -103,7 +96,7 @@ func (m *SchedstatCollector) Init(config json.RawMessage) error {
 	return err
 }
 
-func (m *SchedstatCollector) ParseProcLine(linefields []string, tags map[string]string, output chan lp.CCMessage, now time.Time, tsdelta time.Duration) {
+func (m *SchedstatCollector) ParseProcLine(linefields []string, tags map[string]string, output chan lp.CCMetric, 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"]
@@ -116,7 +109,7 @@ func (m *SchedstatCollector) ParseProcLine(linefields []string, tags map[string]
 	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)
+	y, err := lp.New("cpu_load_core", tags, m.meta, map[string]interface{}{"value": value}, now)
 	if err == nil {
 		// Send it to output channel
 		output <- y
@@ -125,7 +118,7 @@ func (m *SchedstatCollector) ParseProcLine(linefields []string, tags map[string]
 
 // 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) {
+func (m *SchedstatCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}

collectors/schedstatMetric.md

@@ -1,13 +1,3 @@
-<!--
----
-title: SchedStat Metric collector
-description: Collect metrics from `/proc/schedstat`
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/schedstat.md
----
--->
 
 ## `schedstat` collector
 ```json
@@ -18,4 +8,4 @@ hugo_path: docs/reference/cc-metric-collector/collectors/schedstat.md
 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`
+* `cpu_load_core`

collectors/selfMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -13,8 +6,8 @@ import (
 	"syscall"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 type SelfCollectorConfig struct {
@@ -49,56 +42,56 @@ func (m *SelfCollector) Init(config json.RawMessage) error {
 	return err
 }
 
-func (m *SelfCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *SelfCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	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)
+		y, err := lp.New("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)
+		y, err = lp.New("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)
+		y, err = lp.New("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)
+		y, err = lp.New("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)
+		y, err = lp.New("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)
+		y, err = lp.New("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)
+		y, err = lp.New("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)
+		y, err := lp.New("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)
+		y, err := lp.New("num_cgo_calls", m.tags, m.meta, map[string]interface{}{"value": runtime.NumCgoCall()}, timestamp)
 		if err == nil {
 			output <- y
 		}
@@ -109,35 +102,35 @@ func (m *SelfCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 		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)
+			y, err := lp.New("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)
+			y, err = lp.New("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)
+			y, err = lp.New("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)
+			y, err = lp.New("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)
+			y, err = lp.New("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)
+			y, err = lp.New("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)
+			y, err = lp.New("rusage_minor_pgfaults", m.tags, m.meta, map[string]interface{}{"value": rusage.Minflt}, timestamp)
 			if err == nil {
 				output <- y
 			}

collectors/selfMetric.md

@@ -1,14 +1,3 @@
-<!--
----
-title: Self-monitoring metric collector
-description: Collect metrics from the execution of cc-metric-collector itself
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/self.md
----
--->
-
 ## `self` collector
 
 ```json

collectors/tempMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -16,8 +9,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 // See: https://www.kernel.org/doc/html/latest/hwmon/sysfs-interface.html
@@ -178,7 +171,7 @@ func (m *TempCollector) Init(config json.RawMessage) error {
 	return nil
 }
 
-func (m *TempCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *TempCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 
 	for _, sensor := range m.sensors {
 		// Read sensor file
@@ -197,7 +190,7 @@ func (m *TempCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 			continue
 		}
 		x /= 1000
-		y, err := lp.NewMessage(
+		y, err := lp.New(
 			sensor.metricName,
 			sensor.tags,
 			m.meta,
@@ -210,7 +203,7 @@ func (m *TempCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 
 		// max temperature
 		if m.config.ReportMaxTemp && sensor.maxTemp != 0 {
-			y, err := lp.NewMessage(
+			y, err := lp.New(
 				sensor.maxTempName,
 				sensor.tags,
 				m.meta,
@@ -224,7 +217,7 @@ func (m *TempCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 
 		// critical temperature
 		if m.config.ReportCriticalTemp && sensor.critTemp != 0 {
-			y, err := lp.NewMessage(
+			y, err := lp.New(
 				sensor.critTempName,
 				sensor.tags,
 				m.meta,

collectors/tempMetric.md

@@ -1,14 +1,3 @@
-<!--
----
-title: Temperature metric collector
-description: Collect thermal metrics from `/sys/class/hwmon/*`
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/temp.md
----
--->
-
 
 ## `tempstat` collector
 

collectors/topprocsMetric.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package collectors
 
 import (
@@ -16,7 +9,7 @@ import (
 	"strings"
 	"time"
 
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
 const MAX_NUM_PROCS = 10
@@ -60,7 +53,7 @@ func (m *TopProcsCollector) Init(config json.RawMessage) error {
 	return nil
 }
 
-func (m *TopProcsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
+func (m *TopProcsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 	if !m.init {
 		return
 	}
@@ -75,7 +68,7 @@ func (m *TopProcsCollector) Read(interval time.Duration, output chan lp.CCMessag
 	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.NewMessage(name, m.tags, m.meta, map[string]interface{}{"value": string(lines[i])}, time.Now())
+		y, err := lp.New(name, m.tags, m.meta, map[string]interface{}{"value": string(lines[i])}, time.Now())
 		if err == nil {
 			output <- y
 		}

collectors/topprocsMetric.md

@@ -1,15 +1,3 @@
-<!--
----
-title: TopProcs collector
-description: Collect infos about most CPU-consuming processes
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 2
-hugo_path: docs/reference/cc-metric-collector/collectors/topprocs.md
----
--->
-
-
 
 ## `topprocs` collector
 

config.json

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

docs/configuration.md

@@ -12,8 +12,8 @@ The global file contains the paths to the other four files and some global optio
   "collectors" : "collectors.json",
   "receivers" : "receivers.json",
   "router" : "router.json",
-  "interval": "10s",
-  "duration": "1s"
+  "interval": 10,
+  "duration": 1
 }
 ```
 

go.mod

@@ -1,48 +1,105 @@
 module github.com/ClusterCockpit/cc-metric-collector
 
-go 1.23.4
-
-toolchain go1.23.7
+go 1.20
 
 require (
-	github.com/ClusterCockpit/cc-lib v0.1.1
+	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/NVIDIA/go-nvml v0.12.0-1
 	github.com/PaesslerAG/gval v1.2.2
-	github.com/fsnotify/fsnotify v1.7.0
-	github.com/gorilla/mux v1.8.1
-	github.com/influxdata/influxdb-client-go/v2 v2.14.0
+	github.com/fsnotify/fsnotify v1.6.0
+	github.com/gorilla/mux v1.8.0
+	github.com/influxdata/influxdb-client-go/v2 v2.12.3
 	github.com/influxdata/line-protocol v0.0.0-20210922203350-b1ad95c89adf
 	github.com/influxdata/line-protocol/v2 v2.2.1
-	github.com/nats-io/nats.go v1.39.0
-	github.com/prometheus/client_golang v1.20.5
-	github.com/stmcginnis/gofish v0.15.0
-	github.com/tklauser/go-sysconf v0.3.13
+	github.com/nats-io/nats.go v1.30.2
+	github.com/prometheus/client_golang v1.17.0
+	github.com/stmcginnis/gofish v0.14.0
+	github.com/tklauser/go-sysconf v0.3.12
 	golang.design/x/thread v0.0.0-20210122121316-335e9adffdf1
-	golang.org/x/exp v0.0.0-20250215185904-eff6e970281f
-	golang.org/x/sys v0.30.0
+	golang.org/x/exp v0.0.0-20231006140011-7918f672742d
+	golang.org/x/sys v0.13.0
 )
 
 require (
-	github.com/ClusterCockpit/cc-backend v1.4.2 // indirect
-	github.com/ClusterCockpit/cc-units v0.4.0 // indirect
+	github.com/BurntSushi/toml v1.3.2 // indirect
+	github.com/CloudyKit/fastprinter v0.0.0-20200109182630-33d98a066a53 // indirect
+	github.com/CloudyKit/jet/v6 v6.2.0 // indirect
+	github.com/Joker/jade v1.1.3 // indirect
+	github.com/Shopify/goreferrer v0.0.0-20220729165902-8cddb4f5de06 // indirect
+	github.com/andybalholm/brotli v1.0.5 // indirect
 	github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect
+	github.com/aymerick/douceur v0.2.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cespare/xxhash/v2 v2.3.0 // indirect
-	github.com/expr-lang/expr v1.17.0 // indirect
-	github.com/google/uuid v1.6.0 // indirect
-	github.com/klauspost/compress v1.17.9 // indirect
-	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/nats-io/nkeys v0.4.9 // indirect
+	github.com/bytedance/sonic v1.10.2 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d // indirect
+	github.com/chenzhuoyu/iasm v0.9.0 // indirect
+	github.com/deepmap/oapi-codegen v1.15.0 // indirect
+	github.com/fatih/structs v1.1.0 // indirect
+	github.com/flosch/pongo2/v4 v4.0.2 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/gin-gonic/gin v1.9.1 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.15.5 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/gomarkdown/markdown v0.0.0-20230922112808-5421fefb8386 // indirect
+	github.com/google/uuid v1.3.1 // indirect
+	github.com/gorilla/css v1.0.0 // indirect
+	github.com/iris-contrib/schema v0.0.6 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/kataras/blocks v0.0.8 // indirect
+	github.com/kataras/golog v0.1.9 // indirect
+	github.com/kataras/iris/v12 v12.2.7 // indirect
+	github.com/kataras/pio v0.0.12 // indirect
+	github.com/kataras/sitemap v0.0.6 // indirect
+	github.com/kataras/tunnel v0.0.4 // indirect
+	github.com/klauspost/compress v1.17.0 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.5 // indirect
+	github.com/labstack/echo/v4 v4.11.1 // indirect
+	github.com/labstack/gommon v0.4.0 // indirect
+	github.com/leodido/go-urn v1.2.4 // indirect
+	github.com/mailgun/raymond/v2 v2.0.48 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
+	github.com/microcosm-cc/bluemonday v1.0.25 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/nats-io/nats-server/v2 v2.8.4 // indirect
+	github.com/nats-io/nkeys v0.4.5 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
-	github.com/oapi-codegen/runtime v1.1.1 // indirect
-	github.com/prometheus/client_model v0.6.1 // indirect
-	github.com/prometheus/common v0.55.0 // indirect
-	github.com/prometheus/procfs v0.15.1 // indirect
-	github.com/santhosh-tekuri/jsonschema/v5 v5.3.1 // indirect
+	github.com/pelletier/go-toml/v2 v2.1.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/prometheus/client_model v0.5.0 // indirect
+	github.com/prometheus/common v0.44.0 // indirect
+	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/schollz/closestmatch v2.1.0+incompatible // indirect
 	github.com/shopspring/decimal v1.3.1 // indirect
-	github.com/tklauser/numcpus v0.7.0 // indirect
-	golang.org/x/crypto v0.35.0 // indirect
-	golang.org/x/net v0.36.0 // indirect
-	google.golang.org/protobuf v1.35.2 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/tdewolff/minify/v2 v2.12.9 // indirect
+	github.com/tdewolff/parse/v2 v2.6.8 // indirect
+	github.com/tklauser/numcpus v0.6.1 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.11 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasttemplate v1.2.2 // indirect
+	github.com/vmihailenco/msgpack/v5 v5.4.0 // indirect
+	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
+	github.com/yosssi/ace v0.0.5 // indirect
+	golang.org/x/arch v0.5.0 // indirect
+	golang.org/x/crypto v0.14.0 // indirect
+	golang.org/x/net v0.16.0 // indirect
+	golang.org/x/text v0.13.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,139 +1,295 @@
-github.com/ClusterCockpit/cc-backend v1.4.2 h1:kTOzqkh9N0564N9nqQThnSs7TAfg8RLgvSm00e5HtIc=
-github.com/ClusterCockpit/cc-backend v1.4.2/go.mod h1:g8TNHXe4AXej26snu2//jO3mUF980elT93iV/k11O/c=
-github.com/ClusterCockpit/cc-lib v0.1.0-beta.1 h1:dz9j0g2cod8+SMDjuoIY6ISpiHHeekhX6yQaeiwiwJw=
-github.com/ClusterCockpit/cc-lib v0.1.0-beta.1/go.mod h1:kXMskla1i5ZSfXW0vVRIHgGeXMU5zu2PzYOYnUaOr80=
-github.com/ClusterCockpit/cc-lib v0.1.1 h1:AXZWYUzgTaE/WdxLNSWPR7FJoA5WlzvYZxw4gIw3gNw=
-github.com/ClusterCockpit/cc-lib v0.1.1/go.mod h1:SHKcWW/+kN+pcofAtHJFxvmx1FV0VIJuQv5PuT0HDcc=
+github.com/BurntSushi/toml v1.3.2 h1:o7IhLm0Msx3BaB+n3Ag7L8EVlByGnpq14C4YWiu/gL8=
+github.com/BurntSushi/toml v1.3.2/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
+github.com/CloudyKit/fastprinter v0.0.0-20200109182630-33d98a066a53 h1:sR+/8Yb4slttB4vD+b9btVEnWgL3Q00OBTzVT8B9C0c=
+github.com/CloudyKit/fastprinter v0.0.0-20200109182630-33d98a066a53/go.mod h1:+3IMCy2vIlbG1XG/0ggNQv0SvxCAIpPM5b1nCz56Xno=
+github.com/CloudyKit/jet/v6 v6.2.0 h1:EpcZ6SR9n28BUGtNJSvlBqf90IpjeFr36Tizxhn/oME=
+github.com/CloudyKit/jet/v6 v6.2.0/go.mod h1:d3ypHeIRNo2+XyqnGA8s+aphtcVpjP5hPwP/Lzo7Ro4=
 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=
 github.com/ClusterCockpit/go-rocm-smi v0.3.0/go.mod h1:+I3UMeX3OlizXDf1WpGD43W4KGZZGVSGmny6rTeOnWA=
+github.com/Joker/hpp v1.0.0/go.mod h1:8x5n+M1Hp5hC0g8okX3sR3vFQwynaX/UgSOM9MeBKzY=
+github.com/Joker/jade v1.1.3 h1:Qbeh12Vq6BxURXT1qZBRHsDxeURB8ztcL6f3EXSGeHk=
+github.com/Joker/jade v1.1.3/go.mod h1:T+2WLyt7VH6Lp0TRxQrUYEs64nRc83wkMQrfeIQKduM=
 github.com/NVIDIA/go-nvml v0.11.6-0/go.mod h1:hy7HYeQy335x6nEss0Ne3PYqleRa6Ct+VKD9RQ4nyFs=
-github.com/NVIDIA/go-nvml v0.12.0-2 h1:Sg239yy7jmopu/cuvYauoMj9fOpcGMngxVxxS1EBXeY=
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 golang.org/x/sys v0.0.0-20210122093101-04d7465088b8/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
-golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
-golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
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+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
+golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
+golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/time v0.3.0 h1:rg5rLMjNzMS1RkNLzCG38eapWhnYLFYXDXj2gOlr8j4=
+golang.org/x/time v0.3.0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.1.9/go.mod h1:nABZi5QlRsZVlzPpHl034qft6wpY4eDcsTt5AaioBiU=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/protobuf v1.35.2 h1:8Ar7bF+apOIoThw1EdZl0p1oWvMqTHmpA2fRTyZO8io=
-google.golang.org/protobuf v1.35.2/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
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internal/metricAggregator/README.md

@@ -1,14 +1,3 @@
-<!--
----
-title: Metric Aggregator
-description: Subsystem for evaluating expressions on metrics (deprecated)
-categories: [cc-metric-collector]
-tags: ['Developer']
-weight: 1
-hugo_path: docs/reference/cc-metric-collector/internal/metricaggregator/_index.md
----
--->
-
 # 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.
@@ -46,4 +35,4 @@ The MetricAggregator provides these functions additional to the `Full` language
 ## 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.
+- 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

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package metricAggregator
 
 import (
@@ -16,9 +9,9 @@ import (
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 	topo "github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
 
 	"github.com/PaesslerAG/gval"
@@ -38,14 +31,14 @@ type metricAggregator struct {
 	functions []*MetricAggregatorIntervalConfig
 	constants map[string]interface{}
 	language  gval.Language
-	output    chan lp.CCMessage
+	output    chan lp.CCMetric
 }
 
 type MetricAggregator interface {
 	AddAggregation(name, function, condition string, tags, meta map[string]string) error
 	DeleteAggregation(name string) error
-	Init(output chan lp.CCMessage) error
-	Eval(starttime time.Time, endtime time.Time, metrics []lp.CCMessage)
+	Init(output chan lp.CCMetric) error
+	Eval(starttime time.Time, endtime time.Time, metrics []lp.CCMetric)
 }
 
 var metricCacheLanguage = gval.NewLanguage(
@@ -81,7 +74,7 @@ var evaluables = struct {
 	mapping: make(map[string]gval.Evaluable),
 }
 
-func (c *metricAggregator) Init(output chan lp.CCMessage) error {
+func (c *metricAggregator) Init(output chan lp.CCMetric) error {
 	c.output = output
 	c.functions = make([]*MetricAggregatorIntervalConfig, 0)
 	c.constants = make(map[string]interface{})
@@ -119,7 +112,7 @@ func (c *metricAggregator) Init(output chan lp.CCMessage) error {
 	return nil
 }
 
-func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics []lp.CCMessage) {
+func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics []lp.CCMetric) {
 	vars := make(map[string]interface{})
 	for k, v := range c.constants {
 		vars[k] = v
@@ -134,7 +127,7 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 		var valuesInt32 []int32
 		var valuesInt64 []int64
 		var valuesBool []bool
-		matches := make([]lp.CCMessage, 0)
+		matches := make([]lp.CCMetric, 0)
 		for _, m := range metrics {
 			vars["metric"] = m
 			//value, err := gval.Evaluate(f.Condition, vars, c.language)
@@ -223,7 +216,7 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 				break
 			}
 
-			copy_tags := func(tags map[string]string, metrics []lp.CCMessage) map[string]string {
+			copy_tags := func(tags map[string]string, metrics []lp.CCMetric) map[string]string {
 				out := make(map[string]string)
 				for key, value := range tags {
 					switch value {
@@ -240,7 +233,7 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 				}
 				return out
 			}
-			copy_meta := func(meta map[string]string, metrics []lp.CCMessage) map[string]string {
+			copy_meta := func(meta map[string]string, metrics []lp.CCMetric) map[string]string {
 				out := make(map[string]string)
 				for key, value := range meta {
 					switch value {
@@ -260,18 +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.CCMessage
+			var m lp.CCMetric
 			switch t := value.(type) {
 			case float64:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.New(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			case float32:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.New(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			case int:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.New(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			case int64:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.New(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			case string:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.New(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			default:
 				cclog.ComponentError("MetricCache", "Gval returned invalid type", t, "skipping metric", f.Name)
 			}
@@ -396,7 +389,7 @@ func EvalFloat64Condition(condition string, params map[string]float64) (float64,
 	return value, err
 }
 
-func NewAggregator(output chan lp.CCMessage) (MetricAggregator, error) {
+func NewAggregator(output chan lp.CCMetric) (MetricAggregator, error) {
 	a := new(metricAggregator)
 	err := a.Init(output)
 	if err != nil {

internal/metricAggregator/metricAggregatorFunctions.go

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package metricAggregator
 
 import (

internal/metricRouter/README.md

@@ -1,32 +1,15 @@
-<!--
----
-title: Message Router
-description: Routing component inside cc-metric-collector
-categories: [cc-metric-collector]
-tags: ['Developer']
-weight: 1
-hugo_path: docs/reference/cc-metric-collector/internal/metricrouter/_index.md
----
--->
-
 # 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 [CCMessages](https://pkg.go.dev/github.com/ClusterCockpit/cc-lib/ccMessage).
-
+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).
 
 # Configuration
 
-**Note**: Use the [message processor configuration](https://github.com/ClusterCockpit/cc-lib/blob/main/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",
@@ -80,8 +63,6 @@ The CCMetric router sits in between the collectors and the sinks and can be used
 
 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.
 
-**Note**: Use the [message processor configuration](https://github.com/ClusterCockpit/cc-lib/blob/main/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.
-
 # Processing order in the router
 
 - Add the `hostname_tag` tag (if sent by collectors or cache)
@@ -115,8 +96,6 @@ Every time the router receives a metric through any of the channels, it tries to
 
 # 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
@@ -128,8 +107,6 @@ In the ClusterCockpit world we specified a set of standard metrics. Since some c
 
 # Conditional manipulation of tags (`add_tags` and `del_tags`)
 
-__deprecated__
-
 Common config format:
 ```json
 {
@@ -141,8 +118,6 @@ Common config format:
 
 ## The `del_tags` option
 
-__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.
@@ -154,8 +129,6 @@ Never delete tags:
 
 ## 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.
@@ -197,8 +170,6 @@ In some cases, you want to drop a metric and don't get it forwarded to the sinks
 
 ## 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
@@ -214,8 +185,6 @@ 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
@@ -231,22 +200,15 @@ The first line is comparable with the example in `drop_metrics`, it drops all me
 # 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-lib/ccUnits) 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 [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-lib/ccUnits). The setting works on the metric name and requires the new prefix for the metric. The cc-units package determines the scaling factor.
+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**
+**Note:** `interval_aggregates` works only if `num_cache_intervals` > 0
 
 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.
 
@@ -274,7 +236,7 @@ The above configuration, collects all metric values for metrics evaluating `if`
 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`:
+- 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",

internal/metricRouter/metricCache.go

@@ -1,20 +1,13 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package metricRouter
 
 import (
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 	agg "github.com/ClusterCockpit/cc-metric-collector/internal/metricAggregator"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 	mct "github.com/ClusterCockpit/cc-metric-collector/pkg/multiChanTicker"
 )
 
@@ -23,7 +16,7 @@ type metricCachePeriod struct {
 	stopstamp   time.Time
 	numMetrics  int
 	sizeMetrics int
-	metrics     []lp.CCMessage
+	metrics     []lp.CCMetric
 }
 
 // Metric cache data structure
@@ -36,21 +29,21 @@ type metricCache struct {
 	ticker     mct.MultiChanTicker
 	tickchan   chan time.Time
 	done       chan bool
-	output     chan lp.CCMessage
+	output     chan lp.CCMetric
 	aggEngine  agg.MetricAggregator
 }
 
 type MetricCache interface {
-	Init(output chan lp.CCMessage, ticker mct.MultiChanTicker, wg *sync.WaitGroup, numPeriods int) error
+	Init(output chan lp.CCMetric, ticker mct.MultiChanTicker, wg *sync.WaitGroup, numPeriods int) error
 	Start()
-	Add(metric lp.CCMessage)
-	GetPeriod(index int) (time.Time, time.Time, []lp.CCMessage)
+	Add(metric lp.CCMetric)
+	GetPeriod(index int) (time.Time, time.Time, []lp.CCMetric)
 	AddAggregation(name, function, condition string, tags, meta map[string]string) error
 	DeleteAggregation(name string) error
 	Close()
 }
 
-func (c *metricCache) Init(output chan lp.CCMessage, ticker mct.MultiChanTicker, wg *sync.WaitGroup, numPeriods int) error {
+func (c *metricCache) Init(output chan lp.CCMetric, ticker mct.MultiChanTicker, wg *sync.WaitGroup, numPeriods int) error {
 	var err error = nil
 	c.done = make(chan bool)
 	c.wg = wg
@@ -62,7 +55,7 @@ func (c *metricCache) Init(output chan lp.CCMessage, ticker mct.MultiChanTicker,
 		p := new(metricCachePeriod)
 		p.numMetrics = 0
 		p.sizeMetrics = 0
-		p.metrics = make([]lp.CCMessage, 0)
+		p.metrics = make([]lp.CCMetric, 0)
 		c.intervals = append(c.intervals, p)
 	}
 
@@ -131,7 +124,7 @@ 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.CCMessage) {
+func (c *metricCache) Add(metric lp.CCMetric) {
 	if c.curPeriod >= 0 && c.curPeriod < c.numPeriods {
 		c.lock.Lock()
 		p := c.intervals[c.curPeriod]
@@ -160,10 +153,10 @@ 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.CCMessage) {
+func (c *metricCache) GetPeriod(index int) (time.Time, time.Time, []lp.CCMetric) {
 	var start time.Time = time.Now()
 	var stop time.Time = time.Now()
-	var metrics []lp.CCMessage
+	var metrics []lp.CCMetric
 	if index >= 0 && index < c.numPeriods {
 		pindex := c.curPeriod - index
 		if pindex < 0 {
@@ -175,10 +168,10 @@ func (c *metricCache) GetPeriod(index int) (time.Time, time.Time, []lp.CCMessage
 			metrics = c.intervals[pindex].metrics
 			//return c.intervals[pindex].startstamp, c.intervals[pindex].stopstamp, c.intervals[pindex].metrics
 		} else {
-			metrics = make([]lp.CCMessage, 0)
+			metrics = make([]lp.CCMetric, 0)
 		}
 	} else {
-		metrics = make([]lp.CCMessage, 0)
+		metrics = make([]lp.CCMetric, 0)
 	}
 	return start, stop, metrics
 }
@@ -189,7 +182,7 @@ func (c *metricCache) Close() {
 	c.done <- true
 }
 
-func NewCache(output chan lp.CCMessage, ticker mct.MultiChanTicker, wg *sync.WaitGroup, numPeriods int) (MetricCache, error) {
+func NewCache(output chan lp.CCMetric, 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

@@ -1,26 +1,18 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package metricRouter
 
 import (
 	"encoding/json"
-	"fmt"
 	"os"
 	"strings"
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 
-	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
-	mp "github.com/ClusterCockpit/cc-lib/messageProcessor"
 	agg "github.com/ClusterCockpit/cc-metric-collector/internal/metricAggregator"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 	mct "github.com/ClusterCockpit/cc-metric-collector/pkg/multiChanTicker"
+	units "github.com/ClusterCockpit/cc-units"
 )
 
 const ROUTER_MAX_FORWARD = 50
@@ -46,17 +38,16 @@ type metricRouterConfig struct {
 	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_messages,omitempty"`
+	dropMetrics       map[string]bool                      // Internal map for O(1) lookup
 }
 
 // Metric router data structure
 type metricRouter struct {
 	hostname    string              // Hostname used in tags
-	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
+	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
 	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
@@ -65,15 +56,14 @@ type metricRouter struct {
 	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, routerConfig json.RawMessage) error
-	AddCollectorInput(input chan lp.CCMessage)
-	AddReceiverInput(input chan lp.CCMessage)
-	AddOutput(output chan lp.CCMessage)
+	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)
 	Start()
 	Close()
 }
@@ -84,10 +74,10 @@ type MetricRouter interface {
 // * wait group synchronization (from variable wg)
 // * ticker (from variable ticker)
 // * configuration (read from config file in variable routerConfigFile)
-func (r *metricRouter) Init(ticker mct.MultiChanTicker, wg *sync.WaitGroup, routerConfig json.RawMessage) error {
-	r.outputs = make([]chan lp.CCMessage, 0)
+func (r *metricRouter) Init(ticker mct.MultiChanTicker, wg *sync.WaitGroup, routerConfigFile string) error {
+	r.outputs = make([]chan lp.CCMetric, 0)
 	r.done = make(chan bool)
-	r.cache_input = make(chan lp.CCMessage)
+	r.cache_input = make(chan lp.CCMetric)
 	r.wg = wg
 	r.ticker = ticker
 	r.config.MaxForward = ROUTER_MAX_FORWARD
@@ -102,7 +92,15 @@ func (r *metricRouter) Init(ticker mct.MultiChanTicker, wg *sync.WaitGroup, rout
 	// Drop domain part of host name
 	r.hostname = strings.SplitN(hostname, `.`, 2)[0]
 
-	err = json.Unmarshal(routerConfig, &r.config)
+	// Read metric router config file
+	configFile, err := os.Open(routerConfigFile)
+	if err != nil {
+		cclog.ComponentError("MetricRouter", err.Error())
+		return err
+	}
+	defer configFile.Close()
+	jsonParser := json.NewDecoder(configFile)
+	err = jsonParser.Decode(&r.config)
 	if err != nil {
 		cclog.ComponentError("MetricRouter", err.Error())
 		return err
@@ -121,56 +119,14 @@ func (r *metricRouter) Init(ticker mct.MultiChanTicker, wg *sync.WaitGroup, rout
 			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())
-		}
-	}
+	r.config.dropMetrics = make(map[string]bool)
 	for _, mname := range r.config.DropMetrics {
-		r.mp.AddDropMessagesByName(mname)
+		r.config.dropMetrics[mname] = true
 	}
-	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
 }
 
-func getParamMap(point lp.CCMessage) map[string]interface{} {
+func getParamMap(point lp.CCMetric) map[string]interface{} {
 	params := make(map[string]interface{})
 	params["metric"] = point
 	params["name"] = point.Name()
@@ -188,7 +144,7 @@ func getParamMap(point lp.CCMessage) map[string]interface{} {
 }
 
 // DoAddTags adds a tag when condition is fullfiled
-func (r *metricRouter) DoAddTags(point lp.CCMessage) {
+func (r *metricRouter) DoAddTags(point lp.CCMetric) {
 	var conditionMatches bool
 	for _, m := range r.config.AddTags {
 		if m.Condition == "*" {
@@ -210,81 +166,81 @@ func (r *metricRouter) DoAddTags(point lp.CCMessage) {
 }
 
 // DoDelTags removes a tag when condition is fullfiled
-// 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)
-// 		}
-// 	}
-// }
+func (r *metricRouter) DoDelTags(point lp.CCMetric) {
+	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)
+		}
+	}
+}
 
 // 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
-// 	}
+func (r *metricRouter) dropMetric(point lp.CCMetric) 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
-// 		}
-// 	}
+	// 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
-// }
+	// 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 {
+func (r *metricRouter) prepareUnit(point lp.CCMetric) 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)
+		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())
-// 					}
-// 				}
-// 			}
+		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
-// }
+	return true
+}
 
 // Start starts the metric router
 func (r *metricRouter) Start() {
@@ -303,75 +259,59 @@ func (r *metricRouter) Start() {
 
 	// Forward takes a received metric, adds or deletes tags
 	// and forwards it to the output channels
-	// 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)
-	// 	}
+	forward := func(point lp.CCMetric) {
+		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)
+		r.prepareUnit(point)
 
-	// 	for _, o := range r.outputs {
-	// 		o <- point
-	// 	}
-	// }
+		for _, o := range r.outputs {
+			o <- point
+		}
+	}
 
 	// Foward message received from collector channel
-	coll_forward := func(p lp.CCMessage) {
+	coll_forward := func(p lp.CCMetric) {
 		// receive from metric collector
-		//p.AddTag(r.config.HostnameTagName, r.hostname)
+		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 <- m
-			}
+		if !r.dropMetric(p) {
+			forward(p)
 		}
-		// 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)
+			r.cache.Add(p)
 		}
 	}
 
 	// Forward message received from receivers channel
-	recv_forward := func(p lp.CCMessage) {
+	recv_forward := func(p lp.CCMetric) {
 		// 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)
 		}
-		// if !r.dropMetric(p) {
-		// 	forward(p)
-		// }
 	}
 
 	// Forward message received from cache channel
-	cache_forward := func(p lp.CCMessage) {
+	cache_forward := func(p lp.CCMetric) {
 		// receive from metric collector
-		m, err := r.mp.ProcessMessage(p)
-		if err == nil && m != nil {
-			for _, o := range r.outputs {
-				o <- m
-			}
+		if !r.dropMetric(p) {
+			p.AddTag(r.config.HostnameTagName, r.hostname)
+			forward(p)
 		}
 	}
 
@@ -418,17 +358,17 @@ func (r *metricRouter) Start() {
 }
 
 // AddCollectorInput adds a channel between metric collector and metric router
-func (r *metricRouter) AddCollectorInput(input chan lp.CCMessage) {
+func (r *metricRouter) AddCollectorInput(input chan lp.CCMetric) {
 	r.coll_input = input
 }
 
 // AddReceiverInput adds a channel between metric receiver and metric router
-func (r *metricRouter) AddReceiverInput(input chan lp.CCMessage) {
+func (r *metricRouter) AddReceiverInput(input chan lp.CCMetric) {
 	r.recv_input = input
 }
 
 // AddOutput adds a output channel to the metric router
-func (r *metricRouter) AddOutput(output chan lp.CCMessage) {
+func (r *metricRouter) AddOutput(output chan lp.CCMetric) {
 	r.outputs = append(r.outputs, output)
 }
 
@@ -448,9 +388,9 @@ func (r *metricRouter) Close() {
 }
 
 // New creates a new initialized metric router
-func New(ticker mct.MultiChanTicker, wg *sync.WaitGroup, routerConfig json.RawMessage) (MetricRouter, error) {
+func New(ticker mct.MultiChanTicker, wg *sync.WaitGroup, routerConfigFile string) (MetricRouter, error) {
 	r := new(metricRouter)
-	err := r.Init(ticker, wg, routerConfig)
+	err := r.Init(ticker, wg, routerConfigFile)
 	if err != nil {
 		return nil, err
 	}

pkg/ccLogger/cclogger.go

@@ -0,0 +1,113 @@
+package cclogger
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"runtime"
+)
+
+var (
+	globalDebug             = false
+	stdout                  = os.Stdout
+	stderr                  = os.Stderr
+	debugLog    *log.Logger = nil
+	infoLog     *log.Logger = nil
+	errorLog    *log.Logger = nil
+	warnLog     *log.Logger = nil
+	defaultLog  *log.Logger = nil
+)
+
+func initLogger() {
+	if debugLog == nil {
+		debugLog = log.New(stderr, "DEBUG ", log.LstdFlags)
+	}
+	if infoLog == nil {
+		infoLog = log.New(stdout, "INFO ", log.LstdFlags)
+	}
+	if errorLog == nil {
+		errorLog = log.New(stderr, "ERROR ", log.LstdFlags)
+	}
+	if warnLog == nil {
+		warnLog = log.New(stderr, "WARN ", log.LstdFlags)
+	}
+	if defaultLog == nil {
+		defaultLog = log.New(stdout, "", log.LstdFlags)
+	}
+}
+
+func Print(e ...interface{}) {
+	initLogger()
+	defaultLog.Print(e...)
+}
+
+func ComponentPrint(component string, e ...interface{}) {
+	initLogger()
+	defaultLog.Print(fmt.Sprintf("[%s] ", component), e)
+}
+
+func Info(e ...interface{}) {
+	initLogger()
+	infoLog.Print(e...)
+}
+
+func ComponentInfo(component string, e ...interface{}) {
+	initLogger()
+	infoLog.Print(fmt.Sprintf("[%s] ", component), e)
+}
+
+func Debug(e ...interface{}) {
+	initLogger()
+	if globalDebug {
+		debugLog.Print(e...)
+	}
+}
+
+func ComponentDebug(component string, e ...interface{}) {
+	initLogger()
+	if globalDebug && debugLog != nil {
+		//CCComponentPrint(debugLog, component,  e)
+		debugLog.Print(fmt.Sprintf("[%s] ", component), e)
+	}
+}
+
+func Error(e ...interface{}) {
+	initLogger()
+	_, fn, line, _ := runtime.Caller(1)
+	errorLog.Print(fmt.Sprintf("[%s:%d] ", fn, line), e)
+}
+
+func ComponentError(component string, e ...interface{}) {
+	initLogger()
+	_, fn, line, _ := runtime.Caller(1)
+	errorLog.Print(fmt.Sprintf("[%s|%s:%d] ", component, fn, line), e)
+}
+
+func SetDebug() {
+	globalDebug = true
+	initLogger()
+}
+
+func SetOutput(filename string) {
+	if filename == "stderr" {
+		if stderr != os.Stderr && stderr != os.Stdout {
+			stderr.Close()
+		}
+		stderr = os.Stderr
+	} else if filename == "stdout" {
+		if stderr != os.Stderr && stderr != os.Stdout {
+			stderr.Close()
+		}
+		stderr = os.Stdout
+	} else {
+		file, err := os.OpenFile(filename, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0600)
+		if err == nil {
+			defer file.Close()
+			stderr = file
+		}
+	}
+	debugLog = nil
+	errorLog = nil
+	warnLog = nil
+	initLogger()
+}

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

@@ -1,10 +1,3 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package ccTopology
 
 import (
@@ -16,7 +9,7 @@ import (
 	"strconv"
 	"strings"
 
-	cclogger "github.com/ClusterCockpit/cc-lib/ccLogger"
+	cclogger "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 	"golang.org/x/exp/slices"
 )
 
@@ -303,25 +296,6 @@ func GetTypeList(topology_type string) []int {
 	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
@@ -449,22 +423,3 @@ func GetCoreHwthreads(core int) []int {
 	}
 	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/multiChanTicker/README.md

@@ -1,14 +1,3 @@
-<!--
----
-title: Multi-channel Ticker
-description: Timer ticker that sends out the tick to multiple channels
-categories: [cc-metric-collector]
-tags: ['Developer']
-weight: 1
-hugo_path: docs/reference/cc-metric-collector/pkg/multichanticker/_index.md
----
--->
-
 # MultiChanTicker
 
 The idea of this ticker is to multiply the output channels. The original Golang `time.Ticker` provides only a single output channel, so the signal can only be received by a single other class. This ticker allows to add multiple channels which get all notified about the time tick.

pkg/multiChanTicker/multiChanTicker.go

@@ -1,16 +1,9 @@
-// Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
-// All rights reserved. This file is part of cc-lib.
-// Use of this source code is governed by a MIT-style
-// license that can be found in the LICENSE file.
-// additional authors:
-// Holger Obermaier (NHR@KIT)
-
 package multiChanTicker
 
 import (
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 )
 
 type multiChanTicker struct {

receivers/README.md

@@ -0,0 +1,32 @@
+# CCMetric receivers
+
+This folder contains the ReceiveManager and receiver implementations for the cc-metric-collector.
+
+## Configuration
+
+The configuration file for the receivers is a list of configurations. The `type` field in each specifies which receiver to initialize.
+
+```json
+{
+  "myreceivername" : {
+    "type": "receiver-type",
+    <receiver-specific configuration>
+  }
+}
+```
+
+This allows to specify
+
+## Available receivers
+
+- [`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
+
+## 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)

receivers/httpReceiver.go

@@ -0,0 +1,227 @@
+package receivers
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"net/http"
+	"strings"
+	"sync"
+	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
+	influx "github.com/influxdata/line-protocol/v2/lineprotocol"
+)
+
+const HTTP_RECEIVER_PORT = "8080"
+
+type HttpReceiverConfig struct {
+	Type string `json:"type"`
+	Addr string `json:"address"`
+	Port string `json:"port"`
+	Path string `json:"path"`
+
+	// Maximum amount of time to wait for the next request when keep-alives are enabled
+	// should be larger than the measurement interval to keep the connection open
+	IdleTimeout string `json:"idle_timeout"`
+	idleTimeout time.Duration
+
+	// Controls whether HTTP keep-alives are enabled. By default, keep-alives are enabled
+	KeepAlivesEnabled bool `json:"keep_alives_enabled"`
+
+	// Basic authentication
+	Username     string `json:"username"`
+	Password     string `json:"password"`
+	useBasicAuth bool
+}
+
+type HttpReceiver struct {
+	receiver
+	meta   map[string]string
+	config HttpReceiverConfig
+	server *http.Server
+	wg     sync.WaitGroup
+}
+
+func (r *HttpReceiver) Init(name string, config json.RawMessage) error {
+	r.name = fmt.Sprintf("HttpReceiver(%s)", name)
+
+	// Set default values
+	r.config.Port = HTTP_RECEIVER_PORT
+	r.config.KeepAlivesEnabled = true
+	// should be larger than the measurement interval to keep the connection open
+	r.config.IdleTimeout = "120s"
+
+	// Read config
+	if len(config) > 0 {
+		err := json.Unmarshal(config, &r.config)
+		if err != nil {
+			cclog.ComponentError(r.name, "Error reading config:", err.Error())
+			return err
+		}
+	}
+	if len(r.config.Port) == 0 {
+		return errors.New("not all configuration variables set required by HttpReceiver")
+	}
+
+	// Check idle timeout config
+	if len(r.config.IdleTimeout) > 0 {
+		t, err := time.ParseDuration(r.config.IdleTimeout)
+		if err == nil {
+			cclog.ComponentDebug(r.name, "idleTimeout", t)
+			r.config.idleTimeout = t
+		}
+	}
+
+	// Check basic authentication config
+	if len(r.config.Username) > 0 || len(r.config.Password) > 0 {
+		r.config.useBasicAuth = true
+	}
+	if r.config.useBasicAuth && len(r.config.Username) == 0 {
+		return errors.New("basic authentication requires username")
+	}
+	if r.config.useBasicAuth && len(r.config.Password) == 0 {
+		return errors.New("basic authentication requires password")
+	}
+
+	r.meta = map[string]string{"source": r.name}
+	p := r.config.Path
+	if !strings.HasPrefix(p, "/") {
+		p = "/" + p
+	}
+	addr := fmt.Sprintf("%s:%s", r.config.Addr, r.config.Port)
+	uri := addr + p
+	cclog.ComponentDebug(r.name, "INIT", "listen on:", uri)
+
+	// Register handler function r.ServerHttp for path p in the DefaultServeMux
+	http.HandleFunc(p, r.ServerHttp)
+
+	// Create http server
+	r.server = &http.Server{
+		Addr:        addr,
+		Handler:     nil, // handler to invoke, http.DefaultServeMux if nil
+		IdleTimeout: r.config.idleTimeout,
+	}
+	r.server.SetKeepAlivesEnabled(r.config.KeepAlivesEnabled)
+
+	return nil
+}
+
+func (r *HttpReceiver) Start() {
+	cclog.ComponentDebug(r.name, "START")
+	r.wg.Add(1)
+	go func() {
+		err := r.server.ListenAndServe()
+		if err != nil && err.Error() != "http: Server closed" {
+			cclog.ComponentError(r.name, err.Error())
+		}
+		r.wg.Done()
+	}()
+}
+
+func (r *HttpReceiver) ServerHttp(w http.ResponseWriter, req *http.Request) {
+
+	// Check request method, only post method is handled
+	if req.Method != http.MethodPost {
+		http.Error(w, "Method Not Allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	// Check basic authentication
+	if r.config.useBasicAuth {
+		username, password, ok := req.BasicAuth()
+		if !ok || username != r.config.Username || password != r.config.Password {
+			http.Error(w, "Unauthorized", http.StatusUnauthorized)
+			return
+		}
+	}
+
+	d := influx.NewDecoder(req.Body)
+	for d.Next() {
+
+		// Decode measurement name
+		measurement, err := d.Measurement()
+		if err != nil {
+			msg := "ServerHttp: Failed to decode measurement: " + err.Error()
+			cclog.ComponentError(r.name, msg)
+			http.Error(w, msg, http.StatusInternalServerError)
+			return
+		}
+
+		// Decode tags
+		tags := make(map[string]string)
+		for {
+			key, value, err := d.NextTag()
+			if err != nil {
+				msg := "ServerHttp: Failed to decode tag: " + err.Error()
+				cclog.ComponentError(r.name, msg)
+				http.Error(w, msg, http.StatusInternalServerError)
+				return
+			}
+			if key == nil {
+				break
+			}
+			tags[string(key)] = string(value)
+		}
+
+		// Decode fields
+		fields := make(map[string]interface{})
+		for {
+			key, value, err := d.NextField()
+			if err != nil {
+				msg := "ServerHttp: Failed to decode field: " + err.Error()
+				cclog.ComponentError(r.name, msg)
+				http.Error(w, msg, http.StatusInternalServerError)
+				return
+			}
+			if key == nil {
+				break
+			}
+			fields[string(key)] = value.Interface()
+		}
+
+		// Decode time stamp
+		t, err := d.Time(influx.Nanosecond, time.Time{})
+		if err != nil {
+			msg := "ServerHttp: Failed to decode time stamp: " + err.Error()
+			cclog.ComponentError(r.name, msg)
+			http.Error(w, msg, http.StatusInternalServerError)
+			return
+		}
+
+		y, _ := lp.New(
+			string(measurement),
+			tags,
+			r.meta,
+			fields,
+			t,
+		)
+
+		if r.sink != nil {
+			r.sink <- y
+		}
+	}
+
+	// Check for IO errors
+	err := d.Err()
+	if err != nil {
+		msg := "ServerHttp: Failed to decode: " + err.Error()
+		cclog.ComponentError(r.name, msg)
+		http.Error(w, msg, http.StatusInternalServerError)
+		return
+	}
+
+	w.WriteHeader(http.StatusOK)
+}
+
+func (r *HttpReceiver) Close() {
+	r.server.Shutdown(context.Background())
+}
+
+func NewHttpReceiver(name string, config json.RawMessage) (Receiver, error) {
+	r := new(HttpReceiver)
+	err := r.Init(name, config)
+	return r, err
+}

receivers/httpReceiver.md

@@ -0,0 +1,43 @@
+## `http` receiver
+
+The `http` receiver can be used receive metrics through HTTP POST requests.
+
+### Configuration structure
+
+```json
+{
+  "<name>": {
+    "type": "http",
+    "address" : "",
+    "port" : "8080",
+    "path" : "/write",
+    "idle_timeout": "120s",
+    "username": "myUser",
+    "password": "myPW"
+  }
+}
+```
+
+- `type`: makes the receiver a `http` receiver
+- `address`: Listen address
+- `port`: Listen port
+- `path`: URL path for the write endpoint
+- `idle_timeout`: Maximum amount of time to wait for the next request when keep-alives are enabled should be larger than the measurement interval to keep the connection open
+- `keep_alives_enabled`: Controls whether HTTP keep-alives are enabled. By default, keep-alives are enabled.
+- `username`: username for basic authentication
+- `password`: password for basic authentication
+
+The HTTP endpoint listens to `http://<address>:<port>/<path>`
+
+### Debugging
+
+- Install [curl](https://curl.se/)
+- Use curl to send message to `http` receiver
+
+  ```bash
+  curl http://localhost:8080/write \
+  --user "myUser:myPW" \
+  --data \
+  "myMetric,hostname=myHost,type=hwthread,type-id=0,unit=Hz value=400000i 1694777161164284635
+  myMetric,hostname=myHost,type=hwthread,type-id=1,unit=Hz value=400001i 1694777161164284635"
+  ```

receivers/ipmiReceiver.go

@@ -0,0 +1,534 @@
+package receivers
+
+import (
+	"bufio"
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"os/exec"
+	"regexp"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
+	"github.com/ClusterCockpit/cc-metric-collector/pkg/hostlist"
+)
+
+type IPMIReceiverClientConfig struct {
+
+	// Hostname the IPMI service belongs to
+	Protocol         string            // Protocol / tool to use for IPMI sensor reading
+	DriverType       string            // Out of band IPMI driver
+	Fanout           int               // Maximum number of simultaneous IPMI connections
+	NumHosts         int               // Number of remote IPMI devices with the same configuration
+	IPMIHosts        string            // List of remote IPMI devices to communicate with
+	IPMI2HostMapping map[string]string // Mapping between IPMI device name and host name
+	Username         string            // User name to authenticate with
+	Password         string            // Password to use for authentication
+	CLIOptions       []string          // Additional command line options for ipmi-sensors
+	isExcluded       map[string]bool   // is metric excluded
+}
+
+type IPMIReceiver struct {
+	receiver
+	config struct {
+		Interval time.Duration
+
+		// Client config for each IPMI hosts
+		ClientConfigs []IPMIReceiverClientConfig
+	}
+
+	// Storage for static information
+	meta map[string]string
+
+	done chan bool      // channel to finish / stop IPMI receiver
+	wg   sync.WaitGroup // wait group for IPMI receiver
+}
+
+// doReadMetrics reads metrics from all configure IPMI hosts.
+func (r *IPMIReceiver) doReadMetric() {
+	for i := range r.config.ClientConfigs {
+		clientConfig := &r.config.ClientConfigs[i]
+		var cmd_options []string
+		if clientConfig.Protocol == "ipmi-sensors" {
+			cmd_options = append(cmd_options,
+				"--always-prefix",
+				"--sdr-cache-recreate",
+				// Attempt to interpret OEM data, such as event data, sensor readings, or general extra info
+				"--interpret-oem-data",
+				// Ignore not-available (i.e. N/A) sensors in output
+				"--ignore-not-available-sensors",
+				// Ignore unrecognized sensor events
+				"--ignore-unrecognized-events",
+				// Output fields in comma separated format
+				"--comma-separated-output",
+				// Do not output column headers
+				"--no-header-output",
+				// Output non-abbreviated units (e.g. 'Amps' instead of 'A').
+				// May aid in disambiguation of units (e.g. 'C' for Celsius or Coulombs).
+				"--non-abbreviated-units",
+				"--fanout", fmt.Sprint(clientConfig.Fanout),
+				"--driver-type", clientConfig.DriverType,
+				"--hostname", clientConfig.IPMIHosts,
+				"--username", clientConfig.Username,
+				"--password", clientConfig.Password,
+			)
+			cmd_options := append(cmd_options, clientConfig.CLIOptions...)
+
+			command := exec.Command("ipmi-sensors", cmd_options...)
+			stdout, _ := command.StdoutPipe()
+			errBuf := new(bytes.Buffer)
+			command.Stderr = errBuf
+
+			// start command
+			if err := command.Start(); err != nil {
+				cclog.ComponentError(
+					r.name,
+					fmt.Sprintf("doReadMetric(): Failed to start command \"%s\": %v", command.String(), err),
+				)
+				continue
+			}
+
+			// Read command output
+			const (
+				idxID = iota
+				idxName
+				idxType
+				idxReading
+				idxUnits
+				idxEvent
+			)
+			numPrefixRegex := regexp.MustCompile("^[[:digit:]][[:digit:]]-(.*)$")
+			scanner := bufio.NewScanner(stdout)
+			for scanner.Scan() {
+				// Read host
+				v1 := strings.Split(scanner.Text(), ": ")
+				if len(v1) != 2 {
+					continue
+				}
+				host, ok := clientConfig.IPMI2HostMapping[v1[0]]
+				if !ok {
+					continue
+				}
+
+				// Read sensors
+				v2 := strings.Split(v1[1], ",")
+				if len(v2) != 6 {
+					continue
+				}
+				// Skip sensors with non available sensor readings
+				if v2[idxReading] == "N/A" {
+					continue
+				}
+
+				metric := strings.ToLower(v2[idxType])
+				name := strings.ToLower(
+					strings.Replace(
+						strings.TrimSpace(
+							v2[idxName]), " ", "_", -1))
+				// remove prefix enumeration like 01-...
+				if v := numPrefixRegex.FindStringSubmatch(name); v != nil {
+					name = v[1]
+				}
+				unit := v2[idxUnits]
+				if unit == "Watts" {
+
+					// Power
+					metric = "power"
+					name = strings.TrimSuffix(name, "_power")
+					name = strings.TrimSuffix(name, "_pwr")
+					name = strings.TrimPrefix(name, "pwr_")
+				} else if metric == "voltage" &&
+					unit == "Volts" {
+
+					// Voltage
+					name = strings.TrimPrefix(name, "volt_")
+				} else if metric == "current" &&
+					unit == "Amps" {
+
+					// Current
+					unit = "Ampere"
+				} else if metric == "temperature" &&
+					unit == "degrees C" {
+
+					// Temperature
+					name = strings.TrimSuffix(name, "_temp")
+					unit = "degC"
+				} else if metric == "temperature" &&
+					unit == "degrees F" {
+
+					// Temperature
+					name = strings.TrimSuffix(name, "_temp")
+					unit = "degF"
+				} else if metric == "fan" && unit == "RPM" {
+
+					// Fan speed
+					metric = "fan_speed"
+					name = strings.TrimSuffix(name, "_tach")
+					name = strings.TrimPrefix(name, "spd_")
+				} else if (metric == "cooling device" ||
+					metric == "other units based sensor") &&
+					name == "system_air_flow" &&
+					unit == "CFM" {
+
+					// Air flow
+					metric = "air_flow"
+					name = strings.TrimSuffix(name, "_air_flow")
+					unit = "CubicFeetPerMinute"
+				} else if (metric == "processor" ||
+					metric == "other units based sensor") &&
+					(name == "cpu_utilization" ||
+						name == "io_utilization" ||
+						name == "mem_utilization" ||
+						name == "sys_utilization") &&
+					(unit == "unspecified" ||
+						unit == "%") {
+
+					// Utilization
+					metric = "utilization"
+					name = strings.TrimSuffix(name, "_utilization")
+					unit = "percent"
+				} else {
+					if false {
+						// Debug output for unprocessed metrics
+						fmt.Printf(
+							"host: '%s', metric: '%s', name: '%s', unit: '%s'\n",
+							host, metric, name, unit)
+					}
+					continue
+				}
+
+				// Skip excluded metrics
+				if clientConfig.isExcluded[metric] {
+					continue
+				}
+
+				// Parse sensor value
+				value, err := strconv.ParseFloat(v2[idxReading], 64)
+				if err != nil {
+					continue
+				}
+
+				y, err := lp.New(
+					metric,
+					map[string]string{
+						"hostname": host,
+						"type":     "node",
+						"name":     name,
+					},
+					map[string]string{
+						"source": r.name,
+						"group":  "IPMI",
+						"unit":   unit,
+					},
+					map[string]interface{}{
+						"value": value,
+					},
+					time.Now())
+				if err == nil {
+					r.sink <- y
+				}
+			}
+
+			// Wait for command end
+			if err := command.Wait(); err != nil {
+				errMsg, _ := io.ReadAll(errBuf)
+				cclog.ComponentError(
+					r.name,
+					fmt.Sprintf("doReadMetric(): Failed to wait for the end of command \"%s\": %v\n",
+						strings.Replace(command.String(), clientConfig.Password, "<PW>", -1), err),
+					fmt.Sprintf("doReadMetric(): command stderr: \"%s\"\n", string(errMsg)),
+				)
+			}
+		}
+	}
+}
+
+func (r *IPMIReceiver) Start() {
+	cclog.ComponentDebug(r.name, "START")
+
+	// Start IPMI receiver
+	r.wg.Add(1)
+	go func() {
+		defer r.wg.Done()
+
+		// Create ticker
+		ticker := time.NewTicker(r.config.Interval)
+		defer ticker.Stop()
+
+		for {
+			r.doReadMetric()
+
+			select {
+			case tickerTime := <-ticker.C:
+				// Check if we missed the ticker event
+				if since := time.Since(tickerTime); since > 5*time.Second {
+					cclog.ComponentInfo(r.name, "Missed ticker event for more then", since)
+				}
+
+				// process ticker event -> continue
+				continue
+			case <-r.done:
+				// process done event
+				return
+			}
+		}
+	}()
+
+	cclog.ComponentDebug(r.name, "STARTED")
+}
+
+// Close receiver: close network connection, close files, close libraries, ...
+func (r *IPMIReceiver) Close() {
+	cclog.ComponentDebug(r.name, "CLOSE")
+
+	// Send the signal and wait
+	close(r.done)
+	r.wg.Wait()
+
+	cclog.ComponentDebug(r.name, "DONE")
+}
+
+// NewIPMIReceiver creates a new instance of the redfish receiver
+// Initialize the receiver by giving it a name and reading in the config JSON
+func NewIPMIReceiver(name string, config json.RawMessage) (Receiver, error) {
+	r := new(IPMIReceiver)
+
+	// Config options from config file
+	configJSON := struct {
+		Type string `json:"type"`
+
+		// How often the IPMI sensor metrics should be read and send to the sink (default: 30 s)
+		IntervalString string `json:"interval,omitempty"`
+
+		// Maximum number of simultaneous IPMI connections (default: 64)
+		Fanout int `json:"fanout,omitempty"`
+
+		// Out of band IPMI driver (default: LAN_2_0)
+		DriverType string `json:"driver_type,omitempty"`
+
+		// Default client username, password and endpoint
+		Username *string `json:"username"` // User name to authenticate with
+		Password *string `json:"password"` // Password to use for authentication
+		Endpoint *string `json:"endpoint"` // URL of the IPMI device
+
+		// Globally excluded metrics
+		ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
+
+		ClientConfigs []struct {
+			Fanout     int     `json:"fanout,omitempty"`      // Maximum number of simultaneous IPMI connections (default: 64)
+			DriverType string  `json:"driver_type,omitempty"` // Out of band IPMI driver (default: LAN_2_0)
+			HostList   string  `json:"host_list"`             // List of hosts with the same client configuration
+			Username   *string `json:"username"`              // User name to authenticate with
+			Password   *string `json:"password"`              // Password to use for authentication
+			Endpoint   *string `json:"endpoint"`              // URL of the IPMI service
+
+			// Per client excluded metrics
+			ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
+
+			// Additional command line options for ipmi-sensors
+			CLIOptions []string `json:"cli_options,omitempty"`
+		} `json:"client_config"`
+	}{
+		// Set defaults values
+		// Allow overwriting these defaults by reading config JSON
+		Fanout:         64,
+		DriverType:     "LAN_2_0",
+		IntervalString: "30s",
+	}
+
+	// Set name of IPMIReceiver
+	r.name = fmt.Sprintf("IPMIReceiver(%s)", name)
+
+	// Create done channel
+	r.done = make(chan bool)
+
+	// Set static information
+	r.meta = map[string]string{"source": r.name}
+
+	// Read the IPMI receiver specific JSON config
+	if len(config) > 0 {
+		d := json.NewDecoder(bytes.NewReader(config))
+		d.DisallowUnknownFields()
+		if err := d.Decode(&configJSON); err != nil {
+			cclog.ComponentError(r.name, "Error reading config:", err.Error())
+			return nil, err
+		}
+	}
+
+	// Convert interval string representation to duration
+	var err error
+	r.config.Interval, err = time.ParseDuration(configJSON.IntervalString)
+	if err != nil {
+		err := fmt.Errorf(
+			"Failed to parse duration string interval='%s': %w",
+			configJSON.IntervalString,
+			err,
+		)
+		cclog.Error(r.name, err)
+		return nil, err
+	}
+
+	// Create client config from JSON config
+	totalNumHosts := 0
+	for i := range configJSON.ClientConfigs {
+		clientConfigJSON := &configJSON.ClientConfigs[i]
+
+		var endpoint string
+		if clientConfigJSON.Endpoint != nil {
+			endpoint = *clientConfigJSON.Endpoint
+		} else if configJSON.Endpoint != nil {
+			endpoint = *configJSON.Endpoint
+		} else {
+			err := fmt.Errorf("client config number %v requires endpoint", i)
+			cclog.ComponentError(r.name, err)
+			return nil, err
+		}
+
+		fanout := configJSON.Fanout
+		if clientConfigJSON.Fanout != 0 {
+			fanout = clientConfigJSON.Fanout
+		}
+
+		driverType := configJSON.DriverType
+		if clientConfigJSON.DriverType != "" {
+			driverType = clientConfigJSON.DriverType
+		}
+		if driverType != "LAN" && driverType != "LAN_2_0" {
+			err := fmt.Errorf("client config number %v has invalid driver type %s", i, driverType)
+			cclog.ComponentError(r.name, err)
+			return nil, err
+		}
+
+		var protocol string
+		var host_pattern string
+		if e := strings.Split(endpoint, "://"); len(e) == 2 {
+			protocol = e[0]
+			host_pattern = e[1]
+		} else {
+			err := fmt.Errorf("client config number %v has invalid endpoint %s", i, endpoint)
+			cclog.ComponentError(r.name, err)
+			return nil, err
+		}
+
+		var username string
+		if clientConfigJSON.Username != nil {
+			username = *clientConfigJSON.Username
+		} else if configJSON.Username != nil {
+			username = *configJSON.Username
+		} else {
+			err := fmt.Errorf("client config number %v requires username", i)
+			cclog.ComponentError(r.name, err)
+			return nil, err
+		}
+
+		var password string
+		if clientConfigJSON.Password != nil {
+			password = *clientConfigJSON.Password
+		} else if configJSON.Password != nil {
+			password = *configJSON.Password
+		} else {
+			err := fmt.Errorf("client config number %v requires password", i)
+			cclog.ComponentError(r.name, err)
+			return nil, err
+		}
+
+		// Create mapping between IPMI host name and node host name
+		// This also guaranties that all IPMI host names are unique
+		ipmi2HostMapping := make(map[string]string)
+		hostList, err := hostlist.Expand(clientConfigJSON.HostList)
+		if err != nil {
+			err := fmt.Errorf("client config number %d failed to parse host list %s: %v",
+				i, clientConfigJSON.HostList, err)
+			cclog.ComponentError(r.name, err)
+			return nil, err
+		}
+		for _, host := range hostList {
+			ipmiHost := strings.Replace(host_pattern, "%h", host, -1)
+			ipmi2HostMapping[ipmiHost] = host
+		}
+
+		numHosts := len(ipmi2HostMapping)
+		totalNumHosts += numHosts
+		ipmiHostList := make([]string, 0, numHosts)
+		for ipmiHost := range ipmi2HostMapping {
+			ipmiHostList = append(ipmiHostList, ipmiHost)
+		}
+
+		// Additional command line options
+		for _, v := range clientConfigJSON.CLIOptions {
+			switch {
+			case v == "-u" || strings.HasPrefix(v, "--username"):
+				err := fmt.Errorf("client config number %v: do not set username in cli_options. Use json config username instead", i)
+				cclog.ComponentError(r.name, err)
+				return nil, err
+			case v == "-p" || strings.HasPrefix(v, "--password"):
+				err := fmt.Errorf("client config number %v: do not set password in cli_options. Use json config password instead", i)
+				cclog.ComponentError(r.name, err)
+				return nil, err
+			case v == "-h" || strings.HasPrefix(v, "--hostname"):
+				err := fmt.Errorf("client config number %v: do not set hostname in cli_options. Use json config host_list instead", i)
+				cclog.ComponentError(r.name, err)
+				return nil, err
+			case v == "-D" || strings.HasPrefix(v, "--driver-type"):
+				err := fmt.Errorf("client config number %v: do not set driver type in cli_options. Use json config driver_type instead", i)
+				cclog.ComponentError(r.name, err)
+				return nil, err
+			case v == "-F" || strings.HasPrefix(v, " --fanout"):
+				err := fmt.Errorf("client config number %v: do not set fanout in cli_options. Use json config fanout instead", i)
+				cclog.ComponentError(r.name, err)
+				return nil, err
+			case v == "--always-prefix" ||
+				v == "--sdr-cache-recreate" ||
+				v == "--interpret-oem-data" ||
+				v == "--ignore-not-available-sensors" ||
+				v == "--ignore-unrecognized-events" ||
+				v == "--comma-separated-output" ||
+				v == "--no-header-output" ||
+				v == "--non-abbreviated-units":
+				err := fmt.Errorf("client config number %v: Do not use option %s in cli_options, it is used internally", i, v)
+				cclog.ComponentError(r.name, err)
+				return nil, err
+			}
+		}
+		cliOptions := make([]string, 0)
+		cliOptions = append(cliOptions, clientConfigJSON.CLIOptions...)
+
+		// Is metrics excluded globally or per client
+		isExcluded := make(map[string]bool)
+		for _, key := range clientConfigJSON.ExcludeMetrics {
+			isExcluded[key] = true
+		}
+		for _, key := range configJSON.ExcludeMetrics {
+			isExcluded[key] = true
+		}
+
+		r.config.ClientConfigs = append(
+			r.config.ClientConfigs,
+			IPMIReceiverClientConfig{
+				Protocol:         protocol,
+				Fanout:           fanout,
+				DriverType:       driverType,
+				NumHosts:         numHosts,
+				IPMIHosts:        strings.Join(ipmiHostList, ","),
+				IPMI2HostMapping: ipmi2HostMapping,
+				Username:         username,
+				Password:         password,
+				CLIOptions:       cliOptions,
+				isExcluded:       isExcluded,
+			})
+	}
+
+	if totalNumHosts == 0 {
+		err := fmt.Errorf("at least one IPMI host config is required")
+		cclog.ComponentError(r.name, err)
+		return nil, err
+	}
+
+	cclog.ComponentInfo(r.name, "monitoring", totalNumHosts, "IPMI hosts")
+	return r, nil
+}

receivers/ipmiReceiver.md

@@ -0,0 +1,48 @@
+## IPMI Receiver
+
+The IPMI Receiver uses `ipmi-sensors` from the [FreeIPMI](https://www.gnu.org/software/freeipmi/) project to read IPMI sensor readings and sensor data repository (SDR) information. The available metrics depend on the sensors provided by the hardware vendor but typically contain temperature, fan speed, voltage and power metrics.
+
+### Configuration structure
+
+```json
+{
+    "<IPMI receiver name>": {
+        "type": "ipmi",
+        "interval": "30s",
+        "fanout": 256,
+        "username": "<Username>",
+        "password": "<Password>",
+        "endpoint": "ipmi-sensors://%h-bmc",
+        "exclude_metrics": [ "fan_speed", "voltage" ],
+        "client_config": [
+            {
+                "host_list": "n[1,2-4]"
+            },
+            {
+                "host_list": "n[5-6]",
+                "driver_type": "LAN",
+                "cli_options": [ "--workaround-flags=..." ],
+                "password": "<Password 2>"
+            }
+        ]
+    }
+}
+```
+
+Global settings:
+
+- `interval`: How often the IPMI sensor metrics should be read and send to the sink (default: 30 s)
+
+Global and per IPMI device settings (per IPMI device settings overwrite the global settings):
+
+- `exclude_metrics`: list of excluded metrics e.g. fan_speed, power, temperature, utilization, voltage
+- `fanout`: Maximum number of simultaneous IPMI connections (default: 64)
+- `driver_type`: Out of band IPMI driver (default: LAN_2_0)
+- `username`: User name to authenticate with
+- `password`: Password to use for authentication
+- `endpoint`: URL of the IPMI device (placeholder `%h` gets replaced by the hostname)
+
+Per IPMI device settings:
+
+- `host_list`: List of hosts with the same client configuration
+- `cli_options`: Additional command line options for ipmi-sensors

receivers/metricReceiver.go

@@ -0,0 +1,40 @@
+package receivers
+
+import (
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
+)
+
+type defaultReceiverConfig struct {
+	Type string `json:"type"`
+}
+
+// Receiver configuration: Listen address, port
+type ReceiverConfig struct {
+	Addr         string `json:"address"`
+	Port         string `json:"port"`
+	Database     string `json:"database"`
+	Organization string `json:"organization,omitempty"`
+	Type         string `json:"type"`
+}
+
+type receiver struct {
+	name string
+	sink chan lp.CCMetric
+}
+
+type Receiver interface {
+	Start()
+	Close()                        // Close / finish metric receiver
+	Name() string                  // Name of the metric receiver
+	SetSink(sink chan lp.CCMetric) // Set sink channel
+}
+
+// Name returns the name of the metric receiver
+func (r *receiver) Name() string {
+	return r.name
+}
+
+// SetSink set the sink channel
+func (r *receiver) SetSink(sink chan lp.CCMetric) {
+	r.sink = sink
+}

receivers/natsReceiver.go

@@ -0,0 +1,147 @@
+package receivers
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
+	influx "github.com/influxdata/line-protocol/v2/lineprotocol"
+	nats "github.com/nats-io/nats.go"
+)
+
+type NatsReceiverConfig struct {
+	Type    string `json:"type"`
+	Addr    string `json:"address"`
+	Port    string `json:"port"`
+	Subject string `json:"subject"`
+}
+
+type NatsReceiver struct {
+	receiver
+	nc     *nats.Conn
+	meta   map[string]string
+	config NatsReceiverConfig
+}
+
+// Start subscribes to the configured NATS subject
+// Messages wil be handled by r._NatsReceive
+func (r *NatsReceiver) Start() {
+	cclog.ComponentDebug(r.name, "START")
+	r.nc.Subscribe(r.config.Subject, r._NatsReceive)
+}
+
+// _NatsReceive receives subscribed messages from the NATS server
+func (r *NatsReceiver) _NatsReceive(m *nats.Msg) {
+
+	d := influx.NewDecoderWithBytes(m.Data)
+	for d.Next() {
+
+		// Decode measurement name
+		measurement, err := d.Measurement()
+		if err != nil {
+			msg := "_NatsReceive: Failed to decode measurement: " + err.Error()
+			cclog.ComponentError(r.name, msg)
+			return
+		}
+
+		// Decode tags
+		tags := make(map[string]string)
+		for {
+			key, value, err := d.NextTag()
+			if err != nil {
+				msg := "_NatsReceive: Failed to decode tag: " + err.Error()
+				cclog.ComponentError(r.name, msg)
+				return
+			}
+			if key == nil {
+				break
+			}
+			tags[string(key)] = string(value)
+		}
+
+		// Decode fields
+		fields := make(map[string]interface{})
+		for {
+			key, value, err := d.NextField()
+			if err != nil {
+				msg := "_NatsReceive: Failed to decode field: " + err.Error()
+				cclog.ComponentError(r.name, msg)
+				return
+			}
+			if key == nil {
+				break
+			}
+			fields[string(key)] = value.Interface()
+		}
+
+		// Decode time stamp
+		t, err := d.Time(influx.Nanosecond, time.Time{})
+		if err != nil {
+			msg := "_NatsReceive: Failed to decode time: " + err.Error()
+			cclog.ComponentError(r.name, msg)
+			return
+		}
+
+		y, _ := lp.New(
+			string(measurement),
+			tags,
+			r.meta,
+			fields,
+			t,
+		)
+
+		if r.sink != nil {
+			r.sink <- y
+		}
+	}
+}
+
+// Close closes the connection to the NATS server
+func (r *NatsReceiver) Close() {
+	if r.nc != nil {
+		cclog.ComponentDebug(r.name, "CLOSE")
+		r.nc.Close()
+	}
+}
+
+// NewNatsReceiver creates a new Receiver which subscribes to messages from a NATS server
+func NewNatsReceiver(name string, config json.RawMessage) (Receiver, error) {
+	r := new(NatsReceiver)
+	r.name = fmt.Sprintf("NatsReceiver(%s)", name)
+
+	// Read configuration file, allow overwriting default config
+	r.config.Addr = "localhost"
+	r.config.Port = "4222"
+	if len(config) > 0 {
+		err := json.Unmarshal(config, &r.config)
+		if err != nil {
+			cclog.ComponentError(r.name, "Error reading config:", err.Error())
+			return nil, err
+		}
+	}
+	if len(r.config.Addr) == 0 ||
+		len(r.config.Port) == 0 ||
+		len(r.config.Subject) == 0 {
+		return nil, errors.New("not all configuration variables set required by NatsReceiver")
+	}
+
+	// Set metadata
+	r.meta = map[string]string{
+		"source": r.name,
+	}
+
+	// Connect to NATS server
+	url := fmt.Sprintf("nats://%s:%s", r.config.Addr, r.config.Port)
+	cclog.ComponentDebug(r.name, "NewNatsReceiver", url, "Subject", r.config.Subject)
+	if nc, err := nats.Connect(url); err == nil {
+		r.nc = nc
+	} else {
+		r.nc = nil
+		return nil, err
+	}
+
+	return r, nil
+}

receivers/natsReceiver.md

@@ -0,0 +1,50 @@
+## `nats` receiver
+
+The `nats` receiver can be used receive metrics from the NATS network. The `nats` receiver subscribes to the topic `database` and listens on `address` and `port` for metrics in the InfluxDB line protocol.
+
+### Configuration structure
+
+```json
+{
+  "<name>": {
+    "type": "nats",
+    "address" : "nats-server.example.org",
+    "port" : "4222",
+    "subject" : "subject"
+  }
+}
+```
+
+- `type`: makes the receiver a `nats` receiver
+- `address`: Address of the NATS control server
+- `port`: Port of the NATS control server
+- `subject`: Subscribes to this subject and receive metrics
+
+### Debugging
+
+- Install NATS server and command line client
+- Start NATS server
+
+  ```bash
+  nats-server --net nats-server.example.org --port 4222
+  ```
+
+- Check NATS server works as expected
+
+  ```bash
+  nats --server=nats-server-db.example.org:4222 server check
+  ```
+
+- Use NATS command line client to subscribe to all messages
+
+  ```bash
+  nats --server=nats-server-db.example.org:4222 sub ">"
+  ```
+
+- Use NATS command line client to send message to NATS receiver
+
+  ```bash
+  nats --server=nats-server-db.example.org:4222 pub subject \
+  "myMetric,hostname=myHost,type=hwthread,type-id=0,unit=Hz value=400000i 1694777161164284635
+  myMetric,hostname=myHost,type=hwthread,type-id=1,unit=Hz value=400001i 1694777161164284635"
+  ```

receivers/prometheusReceiver.go

@@ -0,0 +1,122 @@
+package receivers
+
+import (
+	"bufio"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"log"
+	"net/http"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
+)
+
+type PrometheusReceiverConfig struct {
+	defaultReceiverConfig
+	Addr     string `json:"address"`
+	Port     string `json:"port"`
+	Path     string `json:"path"`
+	Interval string `json:"interval"`
+	SSL      bool   `json:"ssl"`
+}
+
+type PrometheusReceiver struct {
+	receiver
+	meta     map[string]string
+	config   PrometheusReceiverConfig
+	interval time.Duration
+	done     chan bool
+	wg       sync.WaitGroup
+	ticker   *time.Ticker
+	uri      string
+}
+
+func (r *PrometheusReceiver) Start() {
+	cclog.ComponentDebug(r.name, "START", r.uri)
+	r.wg.Add(1)
+
+	r.ticker = time.NewTicker(r.interval)
+	go func() {
+		for {
+			select {
+			case <-r.done:
+				r.wg.Done()
+				return
+			case t := <-r.ticker.C:
+				resp, err := http.Get(r.uri)
+				if err != nil {
+					log.Fatal(err)
+				}
+				defer resp.Body.Close()
+
+				scanner := bufio.NewScanner(resp.Body)
+				for scanner.Scan() {
+					line := scanner.Text()
+					if strings.HasPrefix(line, "#") {
+						continue
+					}
+					lineSplit := strings.Fields(line)
+					// separate metric name from tags (labels in Prometheus)
+					tags := map[string]string{}
+					name := lineSplit[0]
+					if sindex := strings.Index(name, "{"); sindex >= 0 {
+						eindex := strings.Index(name, "}")
+						for _, kv := range strings.Split(name[sindex+1:eindex], ",") {
+							eq := strings.Index(kv, "=")
+							tags[kv[0:eq]] = strings.Trim(kv[eq+1:], "\"")
+						}
+						name = lineSplit[0][0:sindex]
+					}
+					value, err := strconv.ParseFloat(lineSplit[1], 64)
+					if err == nil {
+						y, err := lp.New(name, tags, r.meta, map[string]interface{}{"value": value}, t)
+						if err == nil {
+							r.sink <- y
+						}
+					}
+				}
+			}
+		}
+	}()
+}
+
+func (r *PrometheusReceiver) Close() {
+	cclog.ComponentDebug(r.name, "CLOSE")
+	r.done <- true
+	r.wg.Wait()
+}
+
+func NewPrometheusReceiver(name string, config json.RawMessage) (Receiver, error) {
+	r := new(PrometheusReceiver)
+	r.name = fmt.Sprintf("PrometheusReceiver(%s)", name)
+	if len(config) > 0 {
+		err := json.Unmarshal(config, &r.config)
+		if err != nil {
+			cclog.ComponentError(r.name, "Error reading config:", err.Error())
+			return nil, err
+		}
+	}
+	if len(r.config.Addr) == 0 ||
+		len(r.config.Port) == 0 ||
+		len(r.config.Interval) == 0 {
+		return nil, errors.New("not all configuration variables set required by PrometheusReceiver (address and port)")
+	}
+	if len(r.config.Interval) > 0 {
+		t, err := time.ParseDuration(r.config.Interval)
+		if err == nil {
+			r.interval = t
+		}
+	}
+	r.meta = map[string]string{"source": r.name}
+	proto := "http"
+	if r.config.SSL {
+		proto = "https"
+	}
+	r.uri = fmt.Sprintf("%s://%s:%s/%s", proto, r.config.Addr, r.config.Port, r.config.Path)
+	return r, nil
+}

receivers/prometheusReceiver.md

@@ -0,0 +1,27 @@
+## `prometheus` receiver
+
+The `prometheus` receiver can be used to scrape the metrics of a single `prometheus` client. It does **not** use any official Golang library but making simple HTTP get requests and parse the response.
+
+### Configuration structure
+
+```json
+{
+  "<name>": {
+    "type": "prometheus",
+    "address" : "testpromhost",
+    "port" : "12345",
+    "path" : "/prometheus",
+    "interval": "5s",
+    "ssl" : true,
+  }
+}
+```
+
+- `type`: makes the receiver a `prometheus` receiver
+- `address`: Hostname or IP of the Prometheus agent
+- `port`: Port of Prometheus agent
+- `path`: Path to the Prometheus endpoint
+- `interval`: Scrape the Prometheus endpoint in this interval (default '5s')
+- `ssl`: Use SSL or not
+
+The receiver requests data from `http(s)://<address>:<port>/<path>`.

receivers/receiveManager.go

@@ -0,0 +1,122 @@
+package receivers
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"sync"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
+)
+
+var AvailableReceivers = map[string]func(name string, config json.RawMessage) (Receiver, error){
+	"http":    NewHttpReceiver,
+	"ipmi":    NewIPMIReceiver,
+	"nats":    NewNatsReceiver,
+	"redfish": NewRedfishReceiver,
+}
+
+type receiveManager struct {
+	inputs []Receiver
+	output chan lp.CCMetric
+	config []json.RawMessage
+}
+
+type ReceiveManager interface {
+	Init(wg *sync.WaitGroup, receiverConfigFile string) error
+	AddInput(name string, rawConfig json.RawMessage) error
+	AddOutput(output chan lp.CCMetric)
+	Start()
+	Close()
+}
+
+func (rm *receiveManager) Init(wg *sync.WaitGroup, receiverConfigFile string) error {
+	// Initialize struct fields
+	rm.inputs = make([]Receiver, 0)
+	rm.output = nil
+	rm.config = make([]json.RawMessage, 0)
+
+	configFile, err := os.Open(receiverConfigFile)
+	if err != nil {
+		cclog.ComponentError("ReceiveManager", err.Error())
+		return err
+	}
+	defer configFile.Close()
+	jsonParser := json.NewDecoder(configFile)
+	var rawConfigs map[string]json.RawMessage
+	err = jsonParser.Decode(&rawConfigs)
+	if err != nil {
+		cclog.ComponentError("ReceiveManager", err.Error())
+		return err
+	}
+	for name, raw := range rawConfigs {
+		rm.AddInput(name, raw)
+	}
+
+	return nil
+}
+
+func (rm *receiveManager) Start() {
+	cclog.ComponentDebug("ReceiveManager", "START")
+
+	for _, r := range rm.inputs {
+		cclog.ComponentDebug("ReceiveManager", "START", r.Name())
+		r.Start()
+	}
+	cclog.ComponentDebug("ReceiveManager", "STARTED")
+}
+
+func (rm *receiveManager) AddInput(name string, rawConfig json.RawMessage) error {
+	var config defaultReceiverConfig
+	err := json.Unmarshal(rawConfig, &config)
+	if err != nil {
+		cclog.ComponentError("ReceiveManager", "SKIP", config.Type, "JSON config error:", err.Error())
+		return err
+	}
+	if config.Type == "" {
+		cclog.ComponentError("ReceiveManager", "SKIP", "JSON config for receiver", name, "does not contain a receiver type")
+		return fmt.Errorf("JSON config for receiver %s does not contain a receiver type", name)
+	}
+	if _, found := AvailableReceivers[config.Type]; !found {
+		cclog.ComponentError("ReceiveManager", "SKIP", "unknown receiver type:", config.Type)
+		return fmt.Errorf("unknown receiver type: %s", config.Type)
+	}
+	r, err := AvailableReceivers[config.Type](name, rawConfig)
+	if err != nil {
+		cclog.ComponentError("ReceiveManager", "SKIP", name, "initialization failed:", err.Error())
+		return err
+	}
+	rm.inputs = append(rm.inputs, r)
+	rm.config = append(rm.config, rawConfig)
+	cclog.ComponentDebug("ReceiveManager", "ADD RECEIVER", r.Name())
+	return nil
+}
+
+func (rm *receiveManager) AddOutput(output chan lp.CCMetric) {
+	rm.output = output
+	for _, r := range rm.inputs {
+		r.SetSink(rm.output)
+	}
+}
+
+func (rm *receiveManager) Close() {
+	cclog.ComponentDebug("ReceiveManager", "CLOSE")
+
+	// Close all receivers
+	for _, r := range rm.inputs {
+		cclog.ComponentDebug("ReceiveManager", "CLOSE", r.Name())
+		r.Close()
+	}
+
+	cclog.ComponentDebug("ReceiveManager", "DONE")
+}
+
+func New(wg *sync.WaitGroup, receiverConfigFile string) (ReceiveManager, error) {
+	r := new(receiveManager)
+	err := r.Init(wg, receiverConfigFile)
+	if err != nil {
+		return nil, err
+	}
+	return r, err
+}

receivers/redfishReceiver.go

@@ -0,0 +1,843 @@
+package receivers
+
+import (
+	"bytes"
+	"crypto/tls"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
+	"github.com/ClusterCockpit/cc-metric-collector/pkg/hostlist"
+
+	// See: https://pkg.go.dev/github.com/stmcginnis/gofish
+	"github.com/stmcginnis/gofish"
+	"github.com/stmcginnis/gofish/common"
+	"github.com/stmcginnis/gofish/redfish"
+)
+
+type RedfishReceiverClientConfig struct {
+
+	// Hostname the redfish service belongs to
+	Hostname string
+
+	// is metric excluded globally or per client
+	isExcluded map[string](bool)
+
+	doPowerMetric      bool
+	doProcessorMetrics bool
+	doThermalMetrics   bool
+
+	skipProcessorMetricsURL map[string]bool
+
+	gofish gofish.ClientConfig
+}
+
+// RedfishReceiver configuration:
+type RedfishReceiver struct {
+	receiver
+
+	config struct {
+		fanout      int
+		Interval    time.Duration
+		HttpTimeout time.Duration
+
+		// Client config for each redfish service
+		ClientConfigs []RedfishReceiverClientConfig
+	}
+
+	done chan bool      // channel to finish / stop redfish receiver
+	wg   sync.WaitGroup // wait group for redfish receiver
+}
+
+// readThermalMetrics reads thermal metrics from a redfish device
+func (r *RedfishReceiver) readThermalMetrics(
+	clientConfig *RedfishReceiverClientConfig,
+	chassis *redfish.Chassis) error {
+
+	// Get thermal information for each chassis
+	thermal, err := chassis.Thermal()
+	if err != nil {
+		return fmt.Errorf("readMetrics: chassis.Thermal() failed: %v", err)
+	}
+
+	// Skip empty thermal information
+	if thermal == nil {
+		return nil
+	}
+
+	timestamp := time.Now()
+
+	for _, temperature := range thermal.Temperatures {
+
+		// Skip, when temperature metric is excluded
+		if clientConfig.isExcluded["temperature"] {
+			break
+		}
+
+		// Skip all temperatures which are not in enabled state
+		if temperature.Status.State != "" && temperature.Status.State != common.EnabledState {
+			continue
+		}
+
+		tags := map[string]string{
+			"hostname": clientConfig.Hostname,
+			"type":     "node",
+			// ChassisType shall indicate the physical form factor for the type of chassis
+			"chassis_typ": string(chassis.ChassisType),
+			// Chassis name
+			"chassis_name": chassis.Name,
+			// ID uniquely identifies the resource
+			"temperature_id": temperature.ID,
+			// MemberID shall uniquely identify the member within the collection. For
+			// services supporting Redfish v1.6 or higher, this value shall be the
+			// zero-based array index.
+			"temperature_member_id": temperature.MemberID,
+			// PhysicalContext shall be a description of the affected device or region
+			// within the chassis to which this temperature measurement applies
+			"temperature_physical_context": string(temperature.PhysicalContext),
+			// Name
+			"temperature_name": temperature.Name,
+		}
+
+		// Delete empty tags
+		for key, value := range tags {
+			if value == "" {
+				delete(tags, key)
+			}
+		}
+
+		// Set meta data tags
+		meta := map[string]string{
+			"source": r.name,
+			"group":  "Temperature",
+			"unit":   "degC",
+		}
+
+		// ReadingCelsius shall be the current value of the temperature sensor's reading.
+		value := temperature.ReadingCelsius
+
+		y, err := lp.New("temperature", tags, meta,
+			map[string]interface{}{
+				"value": value,
+			},
+			timestamp)
+		if err == nil {
+			r.sink <- y
+		}
+	}
+
+	for _, fan := range thermal.Fans {
+		// Skip, when fan_speed metric is excluded
+		if clientConfig.isExcluded["fan_speed"] {
+			break
+		}
+
+		// Skip all fans which are not in enabled state
+		if fan.Status.State != common.EnabledState {
+			continue
+		}
+
+		tags := map[string]string{
+			"hostname": clientConfig.Hostname,
+			"type":     "node",
+			// ChassisType shall indicate the physical form factor for the type of chassis
+			"chassis_typ": string(chassis.ChassisType),
+			// Chassis name
+			"chassis_name": chassis.Name,
+			// ID uniquely identifies the resource
+			"fan_id": fan.ID,
+			// MemberID shall uniquely identify the member within the collection. For
+			// services supporting Redfish v1.6 or higher, this value shall be the
+			// zero-based array index.
+			"fan_member_id": fan.MemberID,
+			// PhysicalContext shall be a description of the affected device or region
+			// within the chassis to which this fan is associated
+			"fan_physical_context": string(fan.PhysicalContext),
+			// Name
+			"fan_name": fan.Name,
+		}
+
+		// Delete empty tags
+		for key, value := range tags {
+			if value == "" {
+				delete(tags, key)
+			}
+		}
+
+		// Set meta data tags
+		meta := map[string]string{
+			"source": r.name,
+			"group":  "FanSpeed",
+			"unit":   string(fan.ReadingUnits),
+		}
+
+		// Reading shall be the current value of the fan sensor's reading
+		value := fan.Reading
+
+		y, err := lp.New("fan_speed", tags, meta,
+			map[string]interface{}{
+				"value": value,
+			},
+			timestamp)
+		if err == nil {
+			r.sink <- y
+		}
+	}
+
+	return nil
+}
+
+// readPowerMetrics reads power metrics from a redfish device
+func (r *RedfishReceiver) readPowerMetrics(
+	clientConfig *RedfishReceiverClientConfig,
+	chassis *redfish.Chassis) error {
+
+	// Get power information for each chassis
+	power, err := chassis.Power()
+	if err != nil {
+		return fmt.Errorf("readMetrics: chassis.Power() failed: %v", err)
+	}
+
+	// Skip empty power information
+	if power == nil {
+		return nil
+	}
+
+	timestamp := time.Now()
+
+	// Read min, max and average consumed watts for each power control
+	for _, pc := range power.PowerControl {
+
+		// Skip all power controls which are not in enabled state
+		if pc.Status.State != "" && pc.Status.State != common.EnabledState {
+			continue
+		}
+
+		// Map of collected metrics
+		metrics := make(map[string]float32)
+
+		// PowerConsumedWatts shall represent the actual power being consumed (in
+		// Watts) by the chassis
+		if !clientConfig.isExcluded["consumed_watts"] {
+			metrics["consumed_watts"] = pc.PowerConsumedWatts
+		}
+		// AverageConsumedWatts shall represent the
+		// average power level that occurred averaged over the last IntervalInMin
+		// minutes.
+		if !clientConfig.isExcluded["average_consumed_watts"] {
+			metrics["average_consumed_watts"] = pc.PowerMetrics.AverageConsumedWatts
+		}
+		// MinConsumedWatts shall represent the
+		// minimum power level in watts that occurred within the last
+		// IntervalInMin minutes.
+		if !clientConfig.isExcluded["min_consumed_watts"] {
+			metrics["min_consumed_watts"] = pc.PowerMetrics.MinConsumedWatts
+		}
+		// MaxConsumedWatts shall represent the
+		// maximum power level in watts that occurred within the last
+		// IntervalInMin minutes
+		if !clientConfig.isExcluded["max_consumed_watts"] {
+			metrics["max_consumed_watts"] = pc.PowerMetrics.MaxConsumedWatts
+		}
+		// IntervalInMin shall represent the time interval (or window), in minutes,
+		// in which the PowerMetrics properties are measured over.
+		// Should be an integer, but some Dell implementations return as a float
+		intervalInMin :=
+			strconv.FormatFloat(
+				float64(pc.PowerMetrics.IntervalInMin), 'f', -1, 32)
+
+		// Set tags
+		tags := map[string]string{
+			"hostname": clientConfig.Hostname,
+			"type":     "node",
+			// ChassisType shall indicate the physical form factor for the type of chassis
+			"chassis_typ": string(chassis.ChassisType),
+			// Chassis name
+			"chassis_name": chassis.Name,
+			// ID uniquely identifies the resource
+			"power_control_id": pc.ID,
+			// MemberID shall uniquely identify the member within the collection. For
+			// services supporting Redfish v1.6 or higher, this value shall be the
+			// zero-based array index.
+			"power_control_member_id": pc.MemberID,
+			// PhysicalContext shall be a description of the affected device(s) or region
+			// within the chassis to which this power control applies.
+			"power_control_physical_context": string(pc.PhysicalContext),
+			// Name
+			"power_control_name": pc.Name,
+		}
+
+		// Delete empty tags
+		for key, value := range tags {
+			if value == "" {
+				delete(tags, key)
+			}
+		}
+
+		// Set meta data tags
+		meta := map[string]string{
+			"source":              r.name,
+			"group":               "Energy",
+			"interval_in_minutes": intervalInMin,
+			"unit":                "watts",
+		}
+
+		// Delete empty meta data tags
+		for key, value := range meta {
+			if value == "" {
+				delete(meta, key)
+			}
+		}
+
+		for name, value := range metrics {
+
+			y, err := lp.New(name, tags, meta,
+				map[string]interface{}{
+					"value": value,
+				},
+				timestamp)
+			if err == nil {
+				r.sink <- y
+			}
+		}
+	}
+
+	return nil
+}
+
+// readProcessorMetrics reads processor metrics from a redfish device
+// See: https://redfish.dmtf.org/schemas/v1/ProcessorMetrics.json
+func (r *RedfishReceiver) readProcessorMetrics(
+	clientConfig *RedfishReceiverClientConfig,
+	processor *redfish.Processor) error {
+
+	timestamp := time.Now()
+
+	// URL to processor metrics
+	URL := processor.ODataID + "/ProcessorMetrics"
+
+	// Skip previously detected non existing URLs
+	if clientConfig.skipProcessorMetricsURL[URL] {
+		return nil
+	}
+
+	resp, err := processor.Client.Get(URL)
+	if err != nil {
+		// Skip non existing URLs
+		if statusCode := err.(*common.Error).HTTPReturnedStatusCode; statusCode == http.StatusNotFound {
+			clientConfig.skipProcessorMetricsURL[URL] = true
+			return nil
+		}
+
+		return fmt.Errorf("processor.Client.Get(%v) failed: %+w", URL, err)
+	}
+
+	var processorMetrics struct {
+		common.Entity
+		ODataType   string `json:"@odata.type"`
+		ODataEtag   string `json:"@odata.etag"`
+		Description string `json:"Description"`
+		// This property shall contain the power, in watts, that the processor has consumed.
+		ConsumedPowerWatt float32 `json:"ConsumedPowerWatt"`
+		// This property shall contain the temperature, in Celsius, of the processor.
+		TemperatureCelsius float32 `json:"TemperatureCelsius"`
+	}
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return fmt.Errorf("unable to read JSON for processor metrics: %+w", err)
+	}
+	err = json.Unmarshal(body, &processorMetrics)
+	if err != nil {
+		return fmt.Errorf(
+			"unable to unmarshal JSON='%s' for processor metrics: %+w",
+			string(body),
+			err,
+		)
+	}
+	processorMetrics.SetClient(processor.Client)
+
+	// Set tags
+	tags := map[string]string{
+		"hostname": clientConfig.Hostname,
+		"type":     "socket",
+		// ProcessorType shall contain the string which identifies the type of processor contained in this Socket
+		"processor_typ": string(processor.ProcessorType),
+		// Processor name
+		"processor_name": processor.Name,
+		// ID uniquely identifies the resource
+		"processor_id": processor.ID,
+	}
+
+	// Delete empty tags
+	for key, value := range tags {
+		if value == "" {
+			delete(tags, key)
+		}
+	}
+
+	// Set meta data tags
+	metaPower := map[string]string{
+		"source": r.name,
+		"group":  "Energy",
+		"unit":   "watts",
+	}
+
+	namePower := "consumed_power"
+
+	if !clientConfig.isExcluded[namePower] &&
+		// Some servers return "ConsumedPowerWatt":65535 instead of "ConsumedPowerWatt":null
+		processorMetrics.ConsumedPowerWatt != 65535 {
+		y, err := lp.New(namePower, tags, metaPower,
+			map[string]interface{}{
+				"value": processorMetrics.ConsumedPowerWatt,
+			},
+			timestamp)
+		if err == nil {
+			r.sink <- y
+		}
+	}
+	// Set meta data tags
+	metaThermal := map[string]string{
+		"source": r.name,
+		"group":  "Temperature",
+		"unit":   "degC",
+	}
+
+	nameThermal := "temperature"
+
+	if !clientConfig.isExcluded[nameThermal] {
+		y, err := lp.New(nameThermal, tags, metaThermal,
+			map[string]interface{}{
+				"value": processorMetrics.TemperatureCelsius,
+			},
+			timestamp)
+		if err == nil {
+			r.sink <- y
+		}
+	}
+	return nil
+}
+
+// readMetrics reads redfish thermal, power and processor metrics from the redfish device
+// configured in clientConfig
+func (r *RedfishReceiver) readMetrics(clientConfig *RedfishReceiverClientConfig) error {
+
+	// Connect to redfish service
+	c, err := gofish.Connect(clientConfig.gofish)
+	if err != nil {
+		return fmt.Errorf(
+			"readMetrics: gofish.Connect({Username: %v, Endpoint: %v, BasicAuth: %v, HttpTimeout: %v, HttpInsecure: %v}) failed: %v",
+			clientConfig.gofish.Username,
+			clientConfig.gofish.Endpoint,
+			clientConfig.gofish.BasicAuth,
+			clientConfig.gofish.HTTPClient.Timeout,
+			clientConfig.gofish.HTTPClient.Transport.(*http.Transport).TLSClientConfig.InsecureSkipVerify,
+			err)
+	}
+	defer c.Logout()
+
+	// Create a session, when required
+	if _, err = c.GetSession(); err != nil {
+		c, err = c.CloneWithSession()
+		if err != nil {
+			return fmt.Errorf("readMetrics: Failed to create a session: %+w", err)
+		}
+	}
+
+	// Get all chassis managed by this service
+	isChassisListRequired :=
+		clientConfig.doThermalMetrics ||
+			clientConfig.doPowerMetric
+	var chassisList []*redfish.Chassis
+	if isChassisListRequired {
+		chassisList, err = c.Service.Chassis()
+		if err != nil {
+			return fmt.Errorf("readMetrics: c.Service.Chassis() failed: %v", err)
+		}
+	}
+
+	// Get all computer systems managed by this service
+	isComputerSystemListRequired := clientConfig.doProcessorMetrics
+	var computerSystemList []*redfish.ComputerSystem
+	if isComputerSystemListRequired {
+		computerSystemList, err = c.Service.Systems()
+		if err != nil {
+			return fmt.Errorf("readMetrics: c.Service.Systems() failed: %v", err)
+		}
+	}
+
+	// read thermal metrics
+	if clientConfig.doThermalMetrics {
+		for _, chassis := range chassisList {
+			err := r.readThermalMetrics(clientConfig, chassis)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	// read power metrics
+	if clientConfig.doPowerMetric {
+		for _, chassis := range chassisList {
+			err = r.readPowerMetrics(clientConfig, chassis)
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	// read processor metrics
+	if clientConfig.doProcessorMetrics {
+		// loop for all computer systems
+		for _, system := range computerSystemList {
+
+			// loop for all processors
+			processors, err := system.Processors()
+			if err != nil {
+				return fmt.Errorf("readMetrics: system.Processors() failed: %v", err)
+			}
+			for _, processor := range processors {
+				err := r.readProcessorMetrics(clientConfig, processor)
+				if err != nil {
+					return err
+				}
+			}
+		}
+	}
+
+	return nil
+}
+
+// doReadMetrics reads metrics from all configure redfish devices.
+// To compensate latencies of the Redfish devices a fanout is used.
+func (r *RedfishReceiver) doReadMetric() {
+
+	// Create wait group and input channel for workers
+	var workerWaitGroup sync.WaitGroup
+	workerInput := make(chan *RedfishReceiverClientConfig, r.config.fanout)
+
+	// Create worker go routines
+	for i := 0; i < r.config.fanout; i++ {
+		// Increment worker wait group counter
+		workerWaitGroup.Add(1)
+		go func() {
+			// Decrement worker wait group counter
+			defer workerWaitGroup.Done()
+
+			// Read power metrics for each client config
+			for clientConfig := range workerInput {
+				err := r.readMetrics(clientConfig)
+				if err != nil {
+					cclog.ComponentError(r.name, err)
+				}
+			}
+		}()
+	}
+
+	// Distribute client configs to workers
+	for i := range r.config.ClientConfigs {
+
+		// Check done channel status
+		select {
+		case workerInput <- &r.config.ClientConfigs[i]:
+		case <-r.done:
+			// process done event
+			// Stop workers, clear channel and wait for all workers to finish
+			close(workerInput)
+			for range workerInput {
+			}
+			workerWaitGroup.Wait()
+			return
+		}
+	}
+
+	// Stop workers and wait for all workers to finish
+	close(workerInput)
+	workerWaitGroup.Wait()
+}
+
+// Start starts the redfish receiver
+func (r *RedfishReceiver) Start() {
+	cclog.ComponentDebug(r.name, "START")
+
+	// Start redfish receiver
+	r.wg.Add(1)
+	go func() {
+		defer r.wg.Done()
+
+		// Create ticker
+		ticker := time.NewTicker(r.config.Interval)
+		defer ticker.Stop()
+
+		for {
+			r.doReadMetric()
+
+			select {
+			case tickerTime := <-ticker.C:
+				// Check if we missed the ticker event
+				if since := time.Since(tickerTime); since > 5*time.Second {
+					cclog.ComponentInfo(r.name, "Missed ticker event for more then", since)
+				}
+
+				// process ticker event -> continue
+				continue
+			case <-r.done:
+				// process done event
+				return
+			}
+		}
+	}()
+
+	cclog.ComponentDebug(r.name, "STARTED")
+}
+
+// Close closes the redfish receiver
+func (r *RedfishReceiver) Close() {
+	cclog.ComponentDebug(r.name, "CLOSE")
+
+	// Send the signal and wait
+	close(r.done)
+	r.wg.Wait()
+
+	cclog.ComponentDebug(r.name, "DONE")
+}
+
+// NewRedfishReceiver creates a new instance of the redfish receiver
+// Initialize the receiver by giving it a name and reading in the config JSON
+func NewRedfishReceiver(name string, config json.RawMessage) (Receiver, error) {
+	r := new(RedfishReceiver)
+
+	// Config options from config file
+	configJSON := struct {
+		Type string `json:"type"`
+
+		// Maximum number of simultaneous redfish connections (default: 64)
+		Fanout int `json:"fanout,omitempty"`
+		// How often the redfish power metrics should be read and send to the sink (default: 30 s)
+		IntervalString string `json:"interval,omitempty"`
+
+		// Control whether a client verifies the server's certificate
+		// (default: true == do not verify server's certificate)
+		HttpInsecure bool `json:"http_insecure,omitempty"`
+		// Time limit for requests made by this HTTP client (default: 10 s)
+		HttpTimeoutString string `json:"http_timeout,omitempty"`
+
+		// Default client username, password and endpoint
+		Username *string `json:"username"` // User name to authenticate with
+		Password *string `json:"password"` // Password to use for authentication
+		Endpoint *string `json:"endpoint"` // URL of the redfish service
+
+		// Globally disable collection of power, processor or thermal metrics
+		DisablePowerMetrics     bool `json:"disable_power_metrics"`
+		DisableProcessorMetrics bool `json:"disable_processor_metrics"`
+		DisableThermalMetrics   bool `json:"disable_thermal_metrics"`
+
+		// Globally excluded metrics
+		ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
+
+		ClientConfigs []struct {
+			HostList string  `json:"host_list"` // List of hosts with the same client configuration
+			Username *string `json:"username"`  // User name to authenticate with
+			Password *string `json:"password"`  // Password to use for authentication
+			Endpoint *string `json:"endpoint"`  // URL of the redfish service
+
+			// Per client disable collection of power,processor or thermal metrics
+			DisablePowerMetrics     bool `json:"disable_power_metrics"`
+			DisableProcessorMetrics bool `json:"disable_processor_metrics"`
+			DisableThermalMetrics   bool `json:"disable_thermal_metrics"`
+
+			// Per client excluded metrics
+			ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
+		} `json:"client_config"`
+	}{
+		// Set defaults values
+		// Allow overwriting these defaults by reading config JSON
+		Fanout:            64,
+		IntervalString:    "30s",
+		HttpTimeoutString: "10s",
+		HttpInsecure:      true,
+	}
+
+	// Set name
+	r.name = fmt.Sprintf("RedfishReceiver(%s)", name)
+
+	// Create done channel
+	r.done = make(chan bool)
+
+	// Read the redfish receiver specific JSON config
+	if len(config) > 0 {
+		d := json.NewDecoder(bytes.NewReader(config))
+		d.DisallowUnknownFields()
+		if err := d.Decode(&configJSON); err != nil {
+			cclog.ComponentError(r.name, "Error reading config:", err.Error())
+			return nil, err
+		}
+	}
+
+	// Convert interval string representation to duration
+	var err error
+	r.config.Interval, err = time.ParseDuration(configJSON.IntervalString)
+	if err != nil {
+		err := fmt.Errorf(
+			"Failed to parse duration string interval='%s': %w",
+			configJSON.IntervalString,
+			err,
+		)
+		cclog.Error(r.name, err)
+		return nil, err
+	}
+
+	// HTTP timeout duration
+	r.config.HttpTimeout, err = time.ParseDuration(configJSON.HttpTimeoutString)
+	if err != nil {
+		err := fmt.Errorf(
+			"Failed to parse duration string http_timeout='%s': %w",
+			configJSON.HttpTimeoutString,
+			err,
+		)
+		cclog.Error(r.name, err)
+		return nil, err
+	}
+
+	// Create new http client
+	customTransport := http.DefaultTransport.(*http.Transport).Clone()
+	customTransport.TLSClientConfig = &tls.Config{
+		InsecureSkipVerify: configJSON.HttpInsecure,
+	}
+	httpClient := &http.Client{
+		Timeout:   r.config.HttpTimeout,
+		Transport: customTransport,
+	}
+
+	// Initialize client configurations
+	r.config.ClientConfigs = make([]RedfishReceiverClientConfig, 0)
+
+	// Create client config from JSON config
+	for i := range configJSON.ClientConfigs {
+
+		clientConfigJSON := &configJSON.ClientConfigs[i]
+
+		var endpoint_pattern string
+		if clientConfigJSON.Endpoint != nil {
+			endpoint_pattern = *clientConfigJSON.Endpoint
+		} else if configJSON.Endpoint != nil {
+			endpoint_pattern = *configJSON.Endpoint
+		} else {
+			err := fmt.Errorf("client config number %v requires endpoint", i)
+			cclog.ComponentError(r.name, err)
+			return nil, err
+		}
+
+		var username string
+		if clientConfigJSON.Username != nil {
+			username = *clientConfigJSON.Username
+		} else if configJSON.Username != nil {
+			username = *configJSON.Username
+		} else {
+			err := fmt.Errorf("client config number %v requires username", i)
+			cclog.ComponentError(r.name, err)
+			return nil, err
+		}
+
+		var password string
+		if clientConfigJSON.Password != nil {
+			password = *clientConfigJSON.Password
+		} else if configJSON.Password != nil {
+			password = *configJSON.Password
+		} else {
+			err := fmt.Errorf("client config number %v requires password", i)
+			cclog.ComponentError(r.name, err)
+			return nil, err
+		}
+
+		// Which metrics should be collected
+		doPowerMetric :=
+			!(configJSON.DisablePowerMetrics ||
+				clientConfigJSON.DisablePowerMetrics)
+		doProcessorMetrics :=
+			!(configJSON.DisableProcessorMetrics ||
+				clientConfigJSON.DisableProcessorMetrics)
+		doThermalMetrics :=
+			!(configJSON.DisableThermalMetrics ||
+				clientConfigJSON.DisableThermalMetrics)
+
+		// Is metrics excluded globally or per client
+		isExcluded := make(map[string]bool)
+		for _, key := range clientConfigJSON.ExcludeMetrics {
+			isExcluded[key] = true
+		}
+		for _, key := range configJSON.ExcludeMetrics {
+			isExcluded[key] = true
+		}
+
+		hostList, err := hostlist.Expand(clientConfigJSON.HostList)
+		if err != nil {
+			err := fmt.Errorf("client config number %d failed to parse host list %s: %v",
+				i, clientConfigJSON.HostList, err)
+			cclog.ComponentError(r.name, err)
+			return nil, err
+		}
+		for _, host := range hostList {
+
+			// Endpoint of the redfish service
+			endpoint := strings.Replace(endpoint_pattern, "%h", host, -1)
+
+			r.config.ClientConfigs = append(
+				r.config.ClientConfigs,
+				RedfishReceiverClientConfig{
+					Hostname:                host,
+					isExcluded:              isExcluded,
+					doPowerMetric:           doPowerMetric,
+					doProcessorMetrics:      doProcessorMetrics,
+					doThermalMetrics:        doThermalMetrics,
+					skipProcessorMetricsURL: make(map[string]bool),
+					gofish: gofish.ClientConfig{
+						Username:   username,
+						Password:   password,
+						Endpoint:   endpoint,
+						HTTPClient: httpClient,
+					},
+				})
+		}
+
+	}
+
+	// Compute parallel fanout to use
+	numClients := len(r.config.ClientConfigs)
+	r.config.fanout = configJSON.Fanout
+	if numClients < r.config.fanout {
+		r.config.fanout = numClients
+	}
+
+	if numClients == 0 {
+		err := fmt.Errorf("at least one client config is required")
+		cclog.ComponentError(r.name, err)
+		return nil, err
+	}
+
+	// Check for duplicate client configurations
+	isDuplicate := make(map[string]bool)
+	for i := range r.config.ClientConfigs {
+		host := r.config.ClientConfigs[i].Hostname
+		if isDuplicate[host] {
+			err := fmt.Errorf("Found duplicate client config for host %s", host)
+			cclog.ComponentError(r.name, err)
+			return nil, err
+		}
+		isDuplicate[host] = true
+	}
+
+	// Give some basic info about redfish receiver status
+	cclog.ComponentInfo(r.name, "Monitoring", numClients, "clients")
+	cclog.ComponentInfo(r.name, "Monitoring interval:", r.config.Interval)
+	cclog.ComponentInfo(r.name, "Monitoring parallel fanout:", r.config.fanout)
+
+	return r, nil
+}

receivers/redfishReceiver.md

@@ -0,0 +1,54 @@
+## Redfish receiver
+
+The Redfish receiver uses the [Redfish (specification)](https://www.dmtf.org/standards/redfish) to query thermal and power metrics. Thermal metrics may include various fan speeds and temperatures. Power metrics may include the current power consumption of various hardware components. It may also include the minimum, maximum and average power consumption of these components in a given time interval. The receiver will poll each configured redfish device once in a given interval. Multiple devices can be accessed in parallel to increase throughput.
+
+### Configuration structure
+
+```json
+{
+    "<redfish receiver name>": {
+        "type": "redfish",
+        "username": "<Username>",
+        "password": "<Password>",
+        "endpoint": "https://%h-bmc",
+        "exclude_metrics": [ "min_consumed_watts" ],
+        "client_config": [
+            {
+                "host_list": "n[1,2-4]"
+            },
+            {
+                "host_list": "n5"
+                "disable_power_metrics": true
+            },
+            {
+                "host_list": "n6" ],
+                "username": "<Username 2>",
+                "password": "<Password 2>",
+                "endpoint": "https://%h-BMC",
+                "disable_thermal_metrics": true
+            }
+        ]
+    }
+}
+```
+
+Global settings:
+
+- `fanout`: Maximum number of simultaneous redfish connections (default: 64)
+- `interval`: How often the redfish power metrics should be read and send to the sink (default: 30 s)
+- `http_insecure`: Control whether a client verifies the server's certificate (default: true == do not verify server's certificate)
+- `http_timeout`: Time limit for requests made by this HTTP client (default: 10 s)
+
+Global and per redfish device settings (per redfish device settings overwrite the global settings):
+
+- `disable_power_metrics`: disable collection of power metrics
+- `disable_processor_metrics`: disable collection of processor metrics
+- `disable_thermal_metrics`: disable collection of thermal metrics
+- `exclude_metrics`: list of excluded metrics
+- `username`: User name to authenticate with
+- `password`: Password to use for authentication
+- `endpoint`: URL of the redfish service (placeholder `%h` gets replaced by the hostname)
+
+Per redfish device settings:
+
+- `host_list`: List of hosts with the same client configuration

receivers/sampleReceiver.go

@@ -0,0 +1,101 @@
+package receivers
+
+import (
+	"encoding/json"
+	"fmt"
+
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+)
+
+// SampleReceiver configuration: receiver type, listen address, port
+type SampleReceiverConfig struct {
+	Type string `json:"type"`
+	Addr string `json:"address"`
+	Port string `json:"port"`
+}
+
+type SampleReceiver struct {
+	receiver
+	config SampleReceiverConfig
+
+	// Storage for static information
+	meta map[string]string
+	// Use in case of own go routine
+	// done chan bool
+	// wg   sync.WaitGroup
+}
+
+// Implement functions required for Receiver interface
+// Start(), Close()
+// See: metricReceiver.go
+
+func (r *SampleReceiver) Start() {
+	cclog.ComponentDebug(r.name, "START")
+
+	// Start server process like http.ListenAndServe()
+
+	// or use own go routine but always make sure it exits
+	// as soon as it gets the signal of the r.done channel
+	//
+	// r.done = make(chan bool)
+	// r.wg.Add(1)
+	// go func() {
+	//      defer r.wg.Done()
+	//
+	//      // Create ticker
+	//      ticker := time.NewTicker(30 * time.Second)
+	//      defer ticker.Stop()
+	//
+	//      for {
+	//          readMetric()
+	//          select {
+	//          case <-ticker.C:
+	//              // process ticker event -> continue
+	//              continue
+	//          case <-r.done:
+	//              return
+	//          }
+	//      }
+	// }()
+}
+
+// Close receiver: close network connection, close files, close libraries, ...
+func (r *SampleReceiver) Close() {
+	cclog.ComponentDebug(r.name, "CLOSE")
+
+	// Close server like http.Shutdown()
+
+	// in case of own go routine, send the signal and wait
+	// r.done <- true
+	// r.wg.Wait()
+}
+
+// New function to create a new instance of the receiver
+// Initialize the receiver by giving it a name and reading in the config JSON
+func NewSampleReceiver(name string, config json.RawMessage) (Receiver, error) {
+	r := new(SampleReceiver)
+
+	// Set name of SampleReceiver
+	// The name should be chosen in such a way that different instances of SampleReceiver can be distinguished
+	r.name = fmt.Sprintf("SampleReceiver(%s)", name)
+
+	// Set static information
+	r.meta = map[string]string{"source": r.name}
+
+	// Set defaults in r.config
+	// Allow overwriting these defaults by reading config JSON
+
+	// Read the sample receiver specific JSON config
+	if len(config) > 0 {
+		err := json.Unmarshal(config, &r.config)
+		if err != nil {
+			cclog.ComponentError(r.name, "Error reading config:", err.Error())
+			return nil, err
+		}
+	}
+
+	// Check that all required fields in the configuration are set
+	// Use 'if len(r.config.Option) > 0' for strings
+
+	return r, nil
+}

router.json

@@ -1,23 +1,22 @@
 {
-    "process_messages" : {
-        "add_tag_if": [
-            {
-                "key" : "cluster",
-                "value" : "testcluster",
-                "if" : "true"
-            },
-            {
-                "key" : "test",
-                "value" : "testing",
-                "if" : "name == 'temp_package_id_0'"
-            }
-        ],
-        "delete_tag_if": [
-            {
-                "key" : "unit",
-                "if" : "true"
-            }
-        ]
-    },
+    "add_tags" : [
+        {
+            "key" : "cluster",
+            "value" : "testcluster",
+            "if" : "*"
+        },
+        {
+            "key" : "test",
+            "value" : "testing",
+            "if" : "name == 'temp_package_id_0'"
+        }
+    ],
+    "delete_tags" : [
+        {
+            "key" : "unit",
+            "value" : "*",
+            "if" : "*"
+        }
+    ],
     "interval_timestamp" : true
 }

scripts/generate_docs.sh

@@ -1,175 +0,0 @@
-#!/bin/bash -l
-
-SRCDIR="$(pwd)"
-DESTDIR="$1"
-
-if [ -z "$DESTDIR" ]; then
-    echo "Destination folder not provided"
-    exit 1
-fi
-
-
-COLLECTORS=$(find "${SRCDIR}/collectors" -name "*Metric.md")
-SINKS=$(find "${SRCDIR}/sinks"  -name "*Sink.md")
-RECEIVERS=$(find "${SRCDIR}/receivers"  -name "*Receiver.md")
-
-
-
-# Collectors
-mkdir -p "${DESTDIR}/collectors"
-for F in $COLLECTORS; do
-    echo "$F"
-    FNAME=$(basename "$F")
-    TITLE=$(grep -E "^##" "$F" | head -n 1 | sed -e 's+## ++g')
-    echo "'${TITLE//\`/}'"
-    if [ "${TITLE}" == "" ]; then continue; fi
-    rm --force "${DESTDIR}/collectors/${FNAME}"
-    cat << EOF >> "${DESTDIR}/collectors/${FNAME}"
----
-title: ${TITLE//\`/}
-description: >
-  Toplevel ${FNAME/.md/}
-categories: [cc-metric-collector]
-tags: [cc-metric-collector, Collector, ${FNAME/Metric.md/}]
-weight: 2
----
-
-EOF
-    cat "$F" >> "${DESTDIR}/collectors/${FNAME}"
-done
-
-if [ -e "${SRCDIR}/collectors/README.md" ]; then
-    cat << EOF > "${DESTDIR}/collectors/_index.md"
----
-title: cc-metric-collector's collectors
-description: Documentation of cc-metric-collector's collectors
-categories: [cc-metric-collector]
-tags: [cc-metric-collector, Collector, General]
-weight: 40
----
-
-EOF
-    cat "${SRCDIR}/collectors/README.md" >> "${DESTDIR}/collectors/_index.md"
-fi
-
-# Sinks
-mkdir -p "${DESTDIR}/sinks"
-for F in $SINKS; do
-    echo "$F"
-    FNAME=$(basename "$F")
-    TITLE=$(grep -E "^##" "$F" | head -n 1 | sed -e 's+## ++g')
-    echo "'${TITLE//\`/}'"
-    if [ "${TITLE}" == "" ]; then continue; fi
-    rm --force "${DESTDIR}/sinks/${FNAME}"
-    cat << EOF >> "${DESTDIR}/sinks/${FNAME}"
----
-title: ${TITLE//\`/}
-description: >
-  Toplevel ${FNAME/.md/}
-categories: [cc-metric-collector]
-tags: [cc-metric-collector, Sink, ${FNAME/Sink.md/}]
-weight: 2
----
-
-EOF
-    cat "$F" >> "${DESTDIR}/sinks/${FNAME}"
-done
-
-if [ -e "${SRCDIR}/collectors/README.md" ]; then
-    cat << EOF > "${DESTDIR}/sinks/_index.md"
----
-title: cc-metric-collector's sinks
-description: Documentation of cc-metric-collector's sinks
-categories: [cc-metric-collector]
-tags: [cc-metric-collector, Sink, General]
-weight: 40
----
-
-EOF
-    cat "${SRCDIR}/sinks/README.md" >> "${DESTDIR}/sinks/_index.md"
-fi
-
-
-# Receivers
-mkdir -p "${DESTDIR}/receivers"
-for F in $RECEIVERS; do
-    echo "$F"
-    FNAME=$(basename "$F")
-    TITLE=$(grep -E "^##" "$F" | head -n 1 | sed -e 's+## ++g')
-    echo "'${TITLE//\`/}'"
-    if [ "${TITLE}" == "" ]; then continue; fi
-    rm --force "${DESTDIR}/receivers/${FNAME}"
-    cat << EOF >> "${DESTDIR}/receivers/${FNAME}"
----
-title: ${TITLE//\`/}
-description: >
-  Toplevel ${FNAME/.md/}
-categories: [cc-metric-collector]
-tags: [cc-metric-collector, Receiver, ${FNAME/Receiver.md/}]
-weight: 2
----
-
-EOF
-    cat "$F" >> "${DESTDIR}/receivers/${FNAME}"
-done
-
-if [ -e "${SRCDIR}/receivers/README.md" ]; then
-    cat << EOF > "${DESTDIR}/receivers/_index.md"
----
-title: cc-metric-collector's receivers
-description: Documentation of cc-metric-collector's receivers
-categories: [cc-metric-collector]
-tags: [cc-metric-collector, Receiver, General]
-weight: 40
----
-
-EOF
-    cat "${SRCDIR}/receivers/README.md" >> "${DESTDIR}/receivers/_index.md"
-fi
-
-mkdir -p "${DESTDIR}/internal/metricRouter"
-if [ -e "${SRCDIR}/internal/metricRouter/README.md" ]; then
-    cat << EOF > "${DESTDIR}/internal/metricRouter/_index.md"
----
-title: cc-metric-collector's router
-description: Documentation of cc-metric-collector's router
-categories: [cc-metric-collector]
-tags: [cc-metric-collector, Router, General]
-weight: 40
----
-
-EOF
-    cat "${SRCDIR}/internal/metricRouter/README.md" >> "${DESTDIR}/internal/metricRouter/_index.md"
-fi
-
-if [ -e "${SRCDIR}/README.md" ]; then
-    cat << EOF > "${DESTDIR}/_index.md"
----
-title: cc-metric-collector
-description: Documentation of cc-metric-collector
-categories: [cc-metric-collector]
-tags: [cc-metric-collector, General]
-weight: 40
----
-
-EOF
-    cat "${SRCDIR}/README.md" >> "${DESTDIR}/_index.md"
-    sed -i -e 's+README.md+_index.md+g' "${DESTDIR}/_index.md"
-fi
-
-
-mkdir -p "${DESTDIR}/pkg/messageProcessor"
-if [ -e "${SRCDIR}/pkg/messageProcessor/README.md" ]; then
-    cat << EOF > "${DESTDIR}/pkg/messageProcessor/_index.md"
----
-title: cc-metric-collector's message processor
-description: Documentation of cc-metric-collector's message processor
-categories: [cc-metric-collector]
-tags: [cc-metric-collector, Message Processor]
-weight: 40
----
-
-EOF
-    cat "${SRCDIR}/pkg/messageProcessor/README.md" >> "${DESTDIR}/pkg/messageProcessor/_index.md"
-fi
-

sinks/README.md

@@ -0,0 +1,108 @@
+# CCMetric sinks
+
+This folder contains the SinkManager and sink implementations for the cc-metric-collector.
+
+# Available sinks:
+- [`stdout`](./stdoutSink.md): Print all metrics to `stdout`, `stderr` or a file
+- [`http`](./httpSink.md): Send metrics to an HTTP server as POST requests
+- [`influxdb`](./influxSink.md): Send metrics to an [InfluxDB](https://www.influxdata.com/products/influxdb/) database
+- [`influxasync`](./influxAsyncSink.md): Send metrics to an [InfluxDB](https://www.influxdata.com/products/influxdb/) database with non-blocking write API
+- [`nats`](./natsSink.md): Publish metrics to the [NATS](https://nats.io/) network overlay system
+- [`ganglia`](./gangliaSink.md): Publish metrics in the [Ganglia Monitoring System](http://ganglia.info/) using the `gmetric` CLI tool
+- [`libganglia`](./libgangliaSink.md): Publish metrics in the [Ganglia Monitoring System](http://ganglia.info/) directly using `libganglia.so`
+- [`prometeus`](./prometheusSink.md): Publish metrics for the [Prometheus Monitoring System](https://prometheus.io/)
+
+# Configuration
+
+The configuration file for the sinks is a list of configurations. The `type` field in each specifies which sink to initialize.
+
+```json
+[
+  "mystdout" : {
+    "type" : "stdout",
+    "meta_as_tags" : [
+    	"unit"
+    ]
+  },
+  "metricstore" : {
+    "type" : "http",
+    "host" : "localhost",
+    "port" : "4123",
+    "database" : "ccmetric",
+    "password" : "<jwt token>"
+  }
+]
+```
+
+
+
+
+# Contributing own sinks
+A sink contains five functions and is derived from the type `sink`:
+* `Init(name string, config json.RawMessage) error`
+* `Write(point CCMetric) error`
+* `Flush() error`
+* `Close()`
+* `New<Typename>(name string, config json.RawMessage) (Sink, error)` (calls the `Init()` function)
+
+The data structures should be set up in `Init()` like opening a file or server connection. The `Write()` function writes/sends the data. For non-blocking sinks, the `Flush()` method tells the sink to drain its internal buffers. The `Close()` function should tear down anything created in `Init()`.
+
+Finally, the sink needs to be registered in the `sinkManager.go`. There is a list of sinks called `AvailableSinks` which is a map (`sink_type_string` -> `pointer to sink interface`). Add a new entry with a descriptive name and the new sink.
+
+## Sample sink
+
+```go
+package sinks
+
+import (
+	"encoding/json"
+	"log"
+	lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
+)
+
+type SampleSinkConfig struct {
+	defaultSinkConfig  // defines JSON tags for 'name' and 'meta_as_tags'
+}
+
+type SampleSink struct {
+	sink              // declarate 'name' and 'meta_as_tags'
+	config StdoutSinkConfig // entry point to the SampleSinkConfig
+}
+
+// Initialize the sink by giving it a name and reading in the config JSON
+func (s *SampleSink) Init(name string, config json.RawMessage) error {
+	s.name = fmt.Sprintf("SampleSink(%s)", name)   // Always specify a name here
+  // Read in the config JSON
+	if len(config) > 0 {
+		err := json.Unmarshal(config, &s.config)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// Code to submit a single CCMetric to the sink
+func (s *SampleSink) Write(point lp.CCMetric) error {
+	log.Print(point)
+	return nil
+}
+
+// If the sink uses batched sends internally, you can tell to flush its buffers
+func (s *SampleSink) Flush() error {
+	return nil
+}
+
+
+// Close sink: close network connection, close files, close libraries, ...
+func (s *SampleSink) Close() {}
+
+
+// New function to create a new instance of the sink
+func NewSampleSink(name string, config json.RawMessage) (Sink, error) {
+	s := new(SampleSink)
+	err := s.Init(name, config)
+	return s, err
+}
+
+```

sinks/gangliaCommon.go

@@ -0,0 +1,269 @@
+package sinks
+
+import (
+	"fmt"
+	"strings"
+
+	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
+)
+
+func GangliaMetricName(point lp.CCMetric) string {
+	name := point.Name()
+	metricType, typeOK := point.GetTag("type")
+	metricTid, tidOk := point.GetTag("type-id")
+	gangliaType := metricType + metricTid
+	if strings.Contains(name, metricType) && tidOk {
+		name = strings.Replace(name, metricType, gangliaType, -1)
+	} else if typeOK && tidOk {
+		name = metricType + metricTid + "_" + name
+	} else if point.HasTag("device") {
+		device, _ := point.GetTag("device")
+		name = name + "_" + device
+	}
+
+	return name
+}
+
+func GangliaMetricRename(name string) string {
+	if name == "net_bytes_in" {
+		return "bytes_in"
+	} else if name == "net_bytes_out" {
+		return "bytes_out"
+	} else if name == "net_pkts_in" {
+		return "pkts_in"
+	} else if name == "net_pkts_out" {
+		return "pkts_out"
+	} else if name == "cpu_iowait" {
+		return "cpu_wio"
+	}
+	return name
+}
+
+func GangliaSlopeType(point lp.CCMetric) uint {
+	name := point.Name()
+	if name == "mem_total" || name == "swap_total" {
+		return 0
+	}
+	return 3
+}
+
+const DEFAULT_GANGLIA_METRIC_TMAX = 300
+const DEFAULT_GANGLIA_METRIC_SLOPE = "both"
+
+type GangliaMetric struct {
+	Name  string
+	Type  string
+	Slope string
+	Tmax  int
+	Unit  string
+}
+
+type GangliaMetricGroup struct {
+	Name    string
+	Metrics []GangliaMetric
+}
+
+var CommonGangliaMetrics = []GangliaMetricGroup{
+	{
+		Name: "memory",
+		Metrics: []GangliaMetric{
+			{"mem_total", "float", "zero", 1200, "KB"},
+			{"swap_total", "float", "zero", 1200, "KB"},
+			{"mem_free", "float", "both", 180, "KB"},
+			{"mem_shared", "float", "both", 180, "KB"},
+			{"mem_buffers", "float", "both", 180, "KB"},
+			{"mem_cached", "float", "both", 180, "KB"},
+			{"swap_free", "float", "both", 180, "KB"},
+			{"mem_sreclaimable", "float", "both", 180, "KB"},
+			{"mem_slab", "float", "both", 180, "KB"},
+		},
+	},
+	{
+		Name: "cpu",
+		Metrics: []GangliaMetric{
+			{"cpu_num", "uint32", "zero", 1200, "CPUs"},
+			{"cpu_speed", "uint32", "zero", 1200, "MHz"},
+			{"cpu_user", "float", "both", 90, "%"},
+			{"cpu_nice", "float", "both", 90, "%"},
+			{"cpu_system", "float", "both", 90, "%"},
+			{"cpu_idle", "float", "both", 3800, "%"},
+			{"cpu_aidle", "float", "both", 90, "%"},
+			{"cpu_wio", "float", "both", 90, "%"},
+			{"cpu_intr", "float", "both", 90, "%"},
+			{"cpu_sintr", "float", "both", 90, "%"},
+			{"cpu_steal", "float", "both", 90, "%"},
+			{"cpu_guest", "float", "both", 90, "%"},
+			{"cpu_gnice", "float", "both", 90, "%"},
+		},
+	},
+	{
+		Name: "load",
+		Metrics: []GangliaMetric{
+			{"load_one", "float", "both", 70, ""},
+			{"load_five", "float", "both", 325, ""},
+			{"load_fifteen", "float", "both", 950, ""},
+		},
+	},
+	{
+		Name: "disk",
+		Metrics: []GangliaMetric{
+			{"disk_total", "double", "both", 1200, "GB"},
+			{"disk_free", "double", "both", 180, "GB"},
+			{"part_max_used", "float", "both", 180, "%"},
+		},
+	},
+	{
+		Name: "network",
+		Metrics: []GangliaMetric{
+			{"bytes_out", "float", "both", 300, "bytes/sec"},
+			{"bytes_in", "float", "both", 300, "bytes/sec"},
+			{"pkts_in", "float", "both", 300, "packets/sec"},
+			{"pkts_out", "float", "both", 300, "packets/sec"},
+		},
+	},
+	{
+		Name: "process",
+		Metrics: []GangliaMetric{
+			{"proc_run", "uint32", "both", 950, ""},
+			{"proc_total", "uint32", "both", 950, ""},
+		},
+	},
+	{
+		Name: "system",
+		Metrics: []GangliaMetric{
+			{"boottime", "uint32", "zero", 1200, "s"},
+			{"sys_clock", "uint32", "zero", 1200, "s"},
+			{"machine_type", "string", "zero", 1200, ""},
+			{"os_name", "string", "zero", 1200, ""},
+			{"os_release", "string", "zero", 1200, ""},
+			{"mtu", "uint32", "both", 1200, ""},
+		},
+	},
+}
+
+type GangliaMetricConfig struct {
+	Type  string
+	Slope string
+	Tmax  int
+	Unit  string
+	Group string
+	Value string
+	Name  string
+}
+
+func GetCommonGangliaConfig(point lp.CCMetric) GangliaMetricConfig {
+	mname := GangliaMetricRename(point.Name())
+	if oldname, ok := point.GetMeta("oldname"); ok {
+		mname = GangliaMetricRename(oldname)
+	}
+	for _, group := range CommonGangliaMetrics {
+		for _, metric := range group.Metrics {
+			if metric.Name == mname {
+				valueStr := ""
+				value, ok := point.GetField("value")
+				if ok {
+					switch real := value.(type) {
+					case float64:
+						valueStr = fmt.Sprintf("%f", real)
+					case float32:
+						valueStr = fmt.Sprintf("%f", real)
+					case int64:
+						valueStr = fmt.Sprintf("%d", real)
+					case int32:
+						valueStr = fmt.Sprintf("%d", real)
+					case int:
+						valueStr = fmt.Sprintf("%d", real)
+					case uint64:
+						valueStr = fmt.Sprintf("%d", real)
+					case uint32:
+						valueStr = fmt.Sprintf("%d", real)
+					case uint:
+						valueStr = fmt.Sprintf("%d", real)
+					case string:
+						valueStr = real
+					default:
+					}
+				}
+				return GangliaMetricConfig{
+					Group: group.Name,
+					Type:  metric.Type,
+					Slope: metric.Slope,
+					Tmax:  metric.Tmax,
+					Unit:  metric.Unit,
+					Value: valueStr,
+					Name:  GangliaMetricRename(mname),
+				}
+			}
+		}
+	}
+	return GangliaMetricConfig{
+		Group: "",
+		Type:  "",
+		Slope: "",
+		Tmax:  0,
+		Unit:  "",
+		Value: "",
+		Name:  "",
+	}
+}
+
+func GetGangliaConfig(point lp.CCMetric) GangliaMetricConfig {
+	mname := GangliaMetricRename(point.Name())
+	if oldname, ok := point.GetMeta("oldname"); ok {
+		mname = GangliaMetricRename(oldname)
+	}
+	group := ""
+	if g, ok := point.GetMeta("group"); ok {
+		group = g
+	}
+	unit := ""
+	if u, ok := point.GetMeta("unit"); ok {
+		unit = u
+	}
+	valueType := "double"
+	valueStr := ""
+	value, ok := point.GetField("value")
+	if ok {
+		switch real := value.(type) {
+		case float64:
+			valueStr = fmt.Sprintf("%f", real)
+			valueType = "double"
+		case float32:
+			valueStr = fmt.Sprintf("%f", real)
+			valueType = "float"
+		case int64:
+			valueStr = fmt.Sprintf("%d", real)
+			valueType = "int32"
+		case int32:
+			valueStr = fmt.Sprintf("%d", real)
+			valueType = "int32"
+		case int:
+			valueStr = fmt.Sprintf("%d", real)
+			valueType = "int32"
+		case uint64:
+			valueStr = fmt.Sprintf("%d", real)
+			valueType = "uint32"
+		case uint32:
+			valueStr = fmt.Sprintf("%d", real)
+			valueType = "uint32"
+		case uint:
+			valueStr = fmt.Sprintf("%d", real)
+			valueType = "uint32"
+		case string:
+			valueStr = real
+			valueType = "string"
+		default:
+			valueType = "invalid"
+		}
+	}
+
+	return GangliaMetricConfig{
+		Group: group,
+		Type:  valueType,
+		Slope: DEFAULT_GANGLIA_METRIC_SLOPE,
+		Tmax:  DEFAULT_GANGLIA_METRIC_TMAX,
+		Unit:  unit,
+		Value: valueStr,
+		Name:  GangliaMetricRename(mname),
+	}
+}