Numastats: Read in config and send abs values by default. Fixes #146

* Add energy metrics from NVML to Nvidia NVML collector

* Add energy metrics to Nvidia collector README

.github/dependabot.yml

@@ -1,11 +0,0 @@
-# To get started with Dependabot version updates, you'll need to specify which
-# package ecosystems to update and where the package manifests are located.
-# Please see the documentation for all configuration options:
-# https://docs.github.com/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
-
-version: 2
-updates:
-  - package-ecosystem: "gomod"
-    directory: "/"
-    schedule:
-      interval: "weekly"

.github/workflows/Release.yml

@@ -36,14 +36,22 @@ jobs:
     # fetch-depth must be 0 to use git describe
     # See: https://github.com/marketplace/actions/checkout
     - name: Checkout
-      uses: actions/checkout@v6
+      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 --enablerepo appstream install go-toolset
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/go-toolset-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-bin-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-src-1.22.9-1.module_el8.10.0+3938+8c723e16.noarch.rpm
 
     - name: RPM build MetricCollector
       id: rpmbuild
@@ -70,13 +78,13 @@ jobs:
 
     # See: https://github.com/actions/upload-artifact
     - name: Save RPM as artifact
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v4
       with:
         name: cc-metric-collector RPM for AlmaLinux 8
         path: ${{ steps.rpmrename.outputs.RPM }}
         overwrite: true
     - name: Save SRPM as artifact
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v4
       with:
         name: cc-metric-collector SRPM for AlmaLinux 8
         path: ${{ steps.rpmrename.outputs.SRPM }}
@@ -106,14 +114,23 @@ jobs:
     # fetch-depth must be 0 to use git describe
     # See: https://github.com/marketplace/actions/checkout
     - name: Checkout
-      uses: actions/checkout@v6
+      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 --enablerepo appstream install go-toolset
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/go-toolset-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-bin-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-src-1.22.7-2.el9_5.noarch.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-race-1.22.7-2.el9_5.x86_64.rpm
 
     - name: RPM build MetricCollector
       id: rpmbuild
@@ -140,26 +157,25 @@ jobs:
 
     # See: https://github.com/actions/upload-artifact
     - name: Save RPM as artifact
-      uses: actions/upload-artifact@v6
+      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@v6
+      uses: actions/upload-artifact@v4
       with:
         name: cc-metric-collector SRPM for AlmaLinux 9
         path: ${{ steps.rpmrename.outputs.SRPM }}
         overwrite: true
 
   #
-  # Build on Red Hat Universal Base Image (UBI 8) using go-toolset
+  # Build on UBI 8 using go-toolset
   #
   UBI-8-RPM-build:
     runs-on: ubuntu-latest
-    # See: https://catalog.redhat.com/en/search?searchType=Containers&q=Red+Hat+Universal+Base+Image+8
+    # See: https://catalog.redhat.com/software/containers/ubi8/ubi/5c35984d70cc534b3a3784e?container-tabs=gti
-    #      https://hub.docker.com/r/redhat/ubi8
+    container: registry.access.redhat.com/ubi8/ubi:8.8-1032.1692772289
-    container: redhat/ubi8
     # The job outputs link to the outputs of the 'rpmbuild' step
     outputs:
       rpm : ${{steps.rpmbuild.outputs.RPM}}
@@ -174,14 +190,22 @@ jobs:
     # fetch-depth must be 0 to use git describe
     # See: https://github.com/marketplace/actions/checkout
     - name: Checkout
-      uses: actions/checkout@v6
+      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 --enablerepo ubi-8-appstream-rpms install go-toolset
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/go-toolset-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-bin-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-src-1.22.9-1.module_el8.10.0+3938+8c723e16.noarch.rpm
 
     - name: RPM build MetricCollector
       id: rpmbuild
@@ -191,25 +215,24 @@ jobs:
 
     # See: https://github.com/actions/upload-artifact
     - name: Save RPM as artifact
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v4
       with:
         name: cc-metric-collector RPM for UBI 8
         path: ${{ steps.rpmbuild.outputs.RPM }}
         overwrite: true
     - name: Save SRPM as artifact
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v4
       with:
         name: cc-metric-collector SRPM for UBI 8
         path: ${{ steps.rpmbuild.outputs.SRPM }}
         overwrite: true
 
   #
-  # Build on Red Hat Universal Base Image (UBI 9) using go-toolset
+  # Build on UBI 9 using go-toolset
   #
   UBI-9-RPM-build:
     runs-on: ubuntu-latest
-    # See: https://catalog.redhat.com/en/search?searchType=Containers&q=Red+Hat+Universal+Base+Image+9
+    # See: https://catalog.redhat.com/software/containers/ubi8/ubi/5c359854d70cc534b3a3784e?container-tabs=gti
-    #      https://hub.docker.com/r/redhat/ubi9
     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
@@ -226,14 +249,24 @@ jobs:
     # fetch-depth must be 0 to use git describe
     # See: https://github.com/marketplace/actions/checkout
     - name: Checkout
-      uses: actions/checkout@v6
+      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 --enablerepo ubi-9-appstream-rpms install go-toolset
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/go-toolset-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-bin-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-src-1.22.7-2.el9_5.noarch.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-race-1.22.7-2.el9_5.x86_64.rpm
 
     - name: RPM build MetricCollector
       id: rpmbuild
@@ -243,13 +276,13 @@ jobs:
 
     # See: https://github.com/actions/upload-artifact
     - name: Save RPM as artifact
-      uses: actions/upload-artifact@v6
+      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@v6
+      uses: actions/upload-artifact@v4
       with:
         name: cc-metric-collector SRPM for UBI 9
         path: ${{ steps.rpmbuild.outputs.SRPM }}
@@ -275,14 +308,13 @@ jobs:
     # fetch-depth must be 0 to use git describe
     # See: https://github.com/marketplace/actions/checkout
     - name: Checkout
-      uses: actions/checkout@v6
+      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@v6
+      uses: actions/setup-go@v5
       with:
         go-version: 'stable'
 
@@ -300,7 +332,7 @@ jobs:
         echo "DEB=${NEW_DEB_FILE}" >> $GITHUB_OUTPUT
     # See: https://github.com/actions/upload-artifact
     - name: Save DEB as artifact
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v4
       with:
         name: cc-metric-collector DEB for Ubuntu 22.04
         path: ${{ steps.debrename.outputs.DEB }}
@@ -326,14 +358,13 @@ jobs:
     # fetch-depth must be 0 to use git describe
     # See: https://github.com/marketplace/actions/checkout
     - name: Checkout
-      uses: actions/checkout@v6
+      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@v6
+      uses: actions/setup-go@v5
       with:
         go-version: 'stable'
 
@@ -351,7 +382,7 @@ jobs:
         echo "DEB=${NEW_DEB_FILE}" >> $GITHUB_OUTPUT
     # See: https://github.com/actions/upload-artifact
     - name: Save DEB as artifact
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v4
       with:
         name: cc-metric-collector DEB for Ubuntu 24.04
         path: ${{ steps.debrename.outputs.DEB }}
@@ -369,48 +400,48 @@ jobs:
     steps:
     # See: https://github.com/actions/download-artifact
     - name: Download AlmaLinux 8 RPM
-      uses: actions/download-artifact@v7
+      uses: actions/download-artifact@v4
       with:
         name: cc-metric-collector RPM for AlmaLinux 8
     - name: Download AlmaLinux 8 SRPM
-      uses: actions/download-artifact@v7
+      uses: actions/download-artifact@v4
       with:
         name: cc-metric-collector SRPM for AlmaLinux 8
 
     - name: Download AlmaLinux 9 RPM
-      uses: actions/download-artifact@v7
+      uses: actions/download-artifact@v4
       with:
         name: cc-metric-collector RPM for AlmaLinux 9
     - name: Download AlmaLinux 9 SRPM
-      uses: actions/download-artifact@v7
+      uses: actions/download-artifact@v4
       with:
         name: cc-metric-collector SRPM for AlmaLinux 9
 
     - name: Download UBI 8 RPM
-      uses: actions/download-artifact@v7
+      uses: actions/download-artifact@v4
       with:
         name: cc-metric-collector RPM for UBI 8
     - name: Download UBI 8 SRPM
-      uses: actions/download-artifact@v7
+      uses: actions/download-artifact@v4
       with:
         name: cc-metric-collector SRPM for UBI 8
 
     - name: Download UBI 9 RPM
-      uses: actions/download-artifact@v7
+      uses: actions/download-artifact@v4
       with:
         name: cc-metric-collector RPM for UBI 9
     - name: Download UBI 9 SRPM
-      uses: actions/download-artifact@v7
+      uses: actions/download-artifact@v4
       with:
         name: cc-metric-collector SRPM for UBI 9
 
     - name: Download Ubuntu 22.04 DEB
-      uses: actions/download-artifact@v7
+      uses: actions/download-artifact@v4
       with:
         name: cc-metric-collector DEB for Ubuntu 22.04
 
     - name: Download Ubuntu 24.04 DEB
-      uses: actions/download-artifact@v7
+      uses: actions/download-artifact@v4
       with:
         name: cc-metric-collector DEB for Ubuntu 24.04
 

.github/workflows/runonce.yml

@@ -20,41 +20,25 @@ jobs:
     # See: https://github.com/marketplace/actions/checkout
     # Checkout git repository and submodules
     - name: Checkout
-      uses: actions/checkout@v6
+      uses: actions/checkout@v4
       with:
         submodules: recursive
 
     # See: https://github.com/marketplace/actions/setup-go-environment
     - name: Setup Golang
-      uses: actions/setup-go@v6
+      uses: actions/setup-go@v5
       with:
-        go-version: 'stable'
+        go-version: '1.21'
         check-latest: true
 
-    - name: Install reviewdog
-      run: |
-        go install github.com/reviewdog/reviewdog/cmd/reviewdog@latest
-
-    # See: https://golangci-lint.run
-    - name: Install GolangCI-Lint
-      run: |
-        go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@latest
-
     - name: Build MetricCollector
       run: make
 
     - name: Run MetricCollector once
       run: ./cc-metric-collector --once --config .github/ci-config.json
 
-    # Running the linter requires likwid.h, which gets downloaded in the build step
-    - name: Static Analysis with GolangCI-Lint and Upload Report with reviewdog
-      run: |
-        golangci-lint run --enable errorlint,govet,misspell,modernize,prealloc,staticcheck,unconvert,wastedassign | reviewdog -f=golangci-lint -name "Check golangci-lint on build-latest" -reporter=github-check -filter-mode=nofilter -fail-level none
-      env:
-        REVIEWDOG_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
   #
-  # Build on AlmaLinux 8 using go-toolset
+  # Build on AlmaLinux 8
   #
   AlmaLinux8-RPM-build:
     runs-on: ubuntu-latest
@@ -74,14 +58,23 @@ jobs:
     # fetch-depth must be 0 to use git describe
     # See: https://github.com/marketplace/actions/checkout
     - name: Checkout
-      uses: actions/checkout@v6
+      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 --enablerepo appstream install go-toolset
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/go-toolset-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-bin-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-src-1.22.9-1.module_el8.10.0+3938+8c723e16.noarch.rpm
 
     - name: RPM build MetricCollector
       id: rpmbuild
@@ -90,7 +83,7 @@ jobs:
           make RPM
 
   #
-  # Build on AlmaLinux 9 using go-toolset
+  # Build on AlmaLinux 9
   #
   AlmaLinux9-RPM-build:
     runs-on: ubuntu-latest
@@ -110,14 +103,24 @@ jobs:
     # fetch-depth must be 0 to use git describe
     # See: https://github.com/marketplace/actions/checkout
     - name: Checkout
-      uses: actions/checkout@v6
+      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 --enablerepo appstream install go-toolset
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/go-toolset-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-bin-1.22.7-2.el9_5.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-src-1.22.7-2.el9_5.noarch.rpm \
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-race-1.22.7-2.el9_5.x86_64.rpm
 
     - name: RPM build MetricCollector
       id: rpmbuild
@@ -125,49 +128,13 @@ jobs:
           git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
           make RPM
 
-  #
-  # Build on AlmaLinux 10 using go-toolset
-  #
-  AlmaLinux10-RPM-build:
-    runs-on: ubuntu-latest
-    # See: https://hub.docker.com/_/almalinux
-    container: almalinux:10
-    # 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@v6
-      with:
-        submodules: recursive
-        fetch-depth: 0
-
-    - name: Setup Golang
-      run: |
-          dnf --assumeyes --disableplugin=subscription-manager --enablerepo appstream install go-toolset
-
-    - name: RPM build MetricCollector
-      id: rpmbuild
-      run: |
-          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
-          make RPM
 
   #
-  # Build on Red Hat Universal Base Image (UBI 8) using go-toolset
+  # Build on UBI 8 using go-toolset
   #
   UBI-8-RPM-build:
     runs-on: ubuntu-latest
-    # See: https://catalog.redhat.com/en/search?searchType=Containers&q=Red+Hat+Universal+Base+Image+8
+    # See: https://catalog.redhat.com/software/containers/ubi8/ubi/5c359854d70cc534b3a3784e?container-tabs=gti
-    #      https://hub.docker.com/r/redhat/ubi8
     container: redhat/ubi8
     # The job outputs link to the outputs of the 'rpmbuild' step
     steps:
@@ -180,14 +147,23 @@ jobs:
     # fetch-depth must be 0 to use git describe
     # See: https://github.com/marketplace/actions/checkout
     - name: Checkout
-      uses: actions/checkout@v6
+      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 --enablerepo ubi-8-appstream-rpms install go-toolset
+          dnf --assumeyes --disableplugin=subscription-manager install \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/go-toolset-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-bin-1.22.9-1.module_el8.10.0+3938+8c723e16.x86_64.rpm \
+              https://repo.almalinux.org/almalinux/8/AppStream/x86_64/os/Packages/golang-src-1.22.9-1.module_el8.10.0+3938+8c723e16.noarch.rpm
 
     - name: RPM build MetricCollector
       id: rpmbuild
@@ -196,12 +172,11 @@ jobs:
           make RPM
 
   #
-  # Build on Red Hat Universal Base Image (UBI 9) using go-toolset
+  # Build on UBI 9 using go-toolset
   #
   UBI-9-RPM-build:
     runs-on: ubuntu-latest
-    # See: https://catalog.redhat.com/en/search?searchType=Containers&q=Red+Hat+Universal+Base+Image+9
+    # See: https://catalog.redhat.com/software/containers/ubi8/ubi/5c359854d70cc534b3a3784e?container-tabs=gti
-    #      https://hub.docker.com/r/redhat/ubi9
     container: redhat/ubi9
     # The job outputs link to the outputs of the 'rpmbuild' step
     steps:
@@ -214,48 +189,24 @@ jobs:
     # fetch-depth must be 0 to use git describe
     # See: https://github.com/marketplace/actions/checkout
     - name: Checkout
-      uses: actions/checkout@v6
+      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 --enablerepo ubi-9-appstream-rpms install go-toolset
+          dnf --assumeyes --disableplugin=subscription-manager install \
-
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/go-toolset-1.22.7-2.el9_5.x86_64.rpm \
-    - name: RPM build MetricCollector
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-1.22.7-2.el9_5.x86_64.rpm \
-      id: rpmbuild
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-bin-1.22.7-2.el9_5.x86_64.rpm \
-      run: |
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-src-1.22.7-2.el9_5.noarch.rpm \
-          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+              https://repo.almalinux.org/almalinux/9/AppStream/x86_64/os/Packages/golang-race-1.22.7-2.el9_5.x86_64.rpm
-          make RPM
-
-  #
-  # Build on Red Hat Universal Base Image (UBI 10) using go-toolset
-  #
-  UBI-10-RPM-build:
-    runs-on: ubuntu-latest
-    # See: https://catalog.redhat.com/en/search?searchType=Containers&q=Red+Hat+Universal+Base+Image+10
-    #      https://hub.docker.com/r/redhat/ubi10
-    container: redhat/ubi10
-    # 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 python3 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@v6
-      with:
-        submodules: recursive
-        fetch-depth: 0
-
-    - name: Setup Golang
-      run: |
-          dnf --assumeyes --disableplugin=subscription-manager --enablerepo ubi-10-for-x86_64-appstream-rpms install go-toolset
 
     - name: RPM build MetricCollector
       id: rpmbuild
@@ -280,14 +231,14 @@ jobs:
     # fetch-depth must be 0 to use git describe
     # See: https://github.com/marketplace/actions/checkout
     - name: Checkout
-      uses: actions/checkout@v6
+      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@v6
+      uses: actions/setup-go@v5
       with:
         go-version: 'stable'
 
@@ -314,14 +265,14 @@ jobs:
     # fetch-depth must be 0 to use git describe
     # See: https://github.com/marketplace/actions/checkout
     - name: Checkout
-      uses: actions/checkout@v6
+      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@v6
+      uses: actions/setup-go@v5
       with:
         go-version: 'stable'
 

Makefile

@@ -72,11 +72,6 @@ staticcheck:
 	$(GOBIN) install honnef.co/go/tools/cmd/staticcheck@latest
 	$$($(GOBIN) env GOPATH)/bin/staticcheck ./...
 
-.PHONY: golangci-lint
-golangci-lint:
-	$(GOBIN) install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@latest
-	$$($(GOBIN) env GOPATH)/bin/golangci-lint run
-
 .ONESHELL:
 .PHONY: RPM
 RPM: scripts/cc-metric-collector.spec

README.md

@@ -32,14 +32,12 @@ There is a main configuration file with basic settings that point to the other c
 
 ``` json
 {
-  "sinks-file": "sinks.json",
+  "sinks": "sinks.json",
-  "collectors-file" : "collectors.json",
+  "collectors" : "collectors.json",
-  "receivers-file" : "receivers.json",
+  "receivers" : "receivers.json",
-  "router-file" : "router.json",
+  "router" : "router.json",
-  "main": {
   "interval": "10s",
   "duration": "1s"
-  }
 }
 ```
 

cc-metric-collector.go

@@ -14,17 +14,17 @@ import (
 	"os/signal"
 	"syscall"
 
-	"github.com/ClusterCockpit/cc-lib/v2/receivers"
+	"github.com/ClusterCockpit/cc-lib/receivers"
-	"github.com/ClusterCockpit/cc-lib/v2/sinks"
+	"github.com/ClusterCockpit/cc-lib/sinks"
 	"github.com/ClusterCockpit/cc-metric-collector/collectors"
 
 	//	"strings"
 	"sync"
 	"time"
 
-	ccconf "github.com/ClusterCockpit/cc-lib/v2/ccConfig"
+	ccconf "github.com/ClusterCockpit/cc-lib/ccConfig"
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 	mr "github.com/ClusterCockpit/cc-metric-collector/internal/metricRouter"
 	mct "github.com/ClusterCockpit/cc-metric-collector/pkg/multiChanTicker"
 )
@@ -50,6 +50,30 @@ type RuntimeConfig struct {
 	Sync     sync.WaitGroup
 }
 
+//// Structure of the configuration file
+//type GlobalConfig struct {
+//	Sink           sinks.SinkConfig           `json:"sink"`
+//	Interval       int                        `json:"interval"`
+//	Duration       int                        `json:"duration"`
+//	Collectors     []string                   `json:"collectors"`
+//	Receiver       receivers.ReceiverConfig   `json:"receiver"`
+//	DefTags        map[string]string          `json:"default_tags"`
+//	CollectConfigs map[string]json.RawMessage `json:"collect_config"`
+//}
+
+//// Load JSON configuration file
+//func LoadConfiguration(file string, config *GlobalConfig) error {
+//	configFile, err := os.Open(file)
+//	defer configFile.Close()
+//	if err != nil {
+//		fmt.Println(err.Error())
+//		return err
+//	}
+//	jsonParser := json.NewDecoder(configFile)
+//	err = jsonParser.Decode(config)
+//	return err
+//}
+
 func ReadCli() map[string]string {
 	var m map[string]string
 	cfg := flag.String("config", "./config.json", "Path to configuration file")
@@ -69,6 +93,22 @@ func ReadCli() map[string]string {
 	return m
 }
 
+//func SetLogging(logfile string) error {
+//	var file *os.File
+//	var err error
+//	if logfile != "stderr" {
+//		file, err = os.OpenFile(logfile, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0600)
+//		if err != nil {
+//			log.Fatal(err)
+//			return err
+//		}
+//	} else {
+//		file = os.Stderr
+//	}
+//	log.SetOutput(file)
+//	return nil
+//}
+
 // General shutdownHandler function that gets executed in case of interrupt or graceful shutdownHandler
 func shutdownHandler(config *RuntimeConfig, shutdownSignal chan os.Signal) {
 	defer config.Sync.Done()
@@ -176,6 +216,11 @@ func mainFunc() int {
 		return 1
 	}
 
+	// Set log file
+	// if logfile := rcfg.CliArgs["logfile"]; logfile != "stderr" {
+	// 	cclog.SetOutput(logfile)
+	// }
+
 	// Creat new multi channel ticker
 	rcfg.MultiChanTicker = mct.NewTicker(rcfg.Interval)
 

collectors.json

@@ -1,19 +1,6 @@
 {
     "cpufreq": {},
     "cpufreq_cpuinfo": {},
-    "cpustat": {
-        "exclude_metrics": [
-            "cpu_idle"
-        ]
-    },
-    "diskstat": {
-        "exclude_metrics": [
-            "disk_total"
-        ],
-        "exclude_mounts": [
-            "slurm-tmpfs"
-        ]
-    },
     "gpfs": {
         "exclude_filesystem": [
             "test_fs"
@@ -34,8 +21,6 @@
     },
     "numastats": {},
     "nvidia": {},
-    "schedstat": {
-    },
     "tempstat": {
         "report_max_temperature": true,
         "report_critical_temperature": true,

collectors/README.md

@@ -52,7 +52,6 @@ In contrast to the configuration files for sinks and receivers, the collectors c
 * [`beegfs_meta`](./beegfsmetaMetric.md)
 * [`beegfs_storage`](./beegfsstorageMetric.md)
 * [`rocm_smi`](./rocmsmiMetric.md)
-* [`slurm_cgroup`](./slurmCgroupMetric.md)
 
 ## Todos
 
@@ -67,7 +66,7 @@ A collector reads data from any source, parses it to metrics and submits these m
 * `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`.
 * `Close()`: Closes down the collector.
 
-It is recommended to call `setup()` in the `Init()` function.
+It is recommanded to call `setup()` in the `Init()` function.
 
 Finally, the collector needs to be registered in the `collectorManager.go`. There is a list of collectors called `AvailableCollectors` which is a map (`collector_type_string` -> `pointer to MetricCollector interface`). Add a new entry with a descriptive name and the new collector.
 
@@ -100,12 +99,11 @@ func (m *SampleCollector) Init(config json.RawMessage) error {
     }
 
     m.name = "SampleCollector"
-    if err := m.setup(); err != nil {
+    m.setup()
-        return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-    }
     if len(config) > 0 {
-        if err := json.Unmarshal(config, &m.config); err != nil {
+        err := json.Unmarshal(config, &m.config)
-            return fmt.Errorf("%s Init(): json.Unmarshal() call failed: %w", m.name, err)
+        if err != nil {
+            return err
         }
     }
     m.meta = map[string]string{"source": m.name, "group": "Sample"}

collectors/beegfsmetaMetric.go

@@ -17,13 +17,12 @@ import (
 	"os/exec"
 	"os/user"
 	"regexp"
-	"slices"
 	"strconv"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 const DEFAULT_BEEGFS_CMD = "beegfs-ctl"
@@ -62,9 +61,7 @@ func (m *BeegfsMetaCollector) Init(config json.RawMessage) error {
 		"rmXA", "setXA", "mirror"}
 
 	m.name = "BeegfsMetaCollector"
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.parallel = true
 	// Set default beegfs-ctl binary
 
@@ -78,10 +75,11 @@ func (m *BeegfsMetaCollector) Init(config json.RawMessage) error {
 		}
 	}
 
-	// Create map with possible variables
+	//create map with possible variables
 	m.matches = make(map[string]string)
 	for _, value := range nodeMdstat_array {
-		if slices.Contains(m.config.ExcludeMetrics, value) {
+		_, skip := stringArrayContains(m.config.ExcludeMetrics, value)
+		if skip {
 			m.matches["other"] = "0"
 		} else {
 			m.matches["beegfs_cmeta_"+value] = "0"
@@ -104,7 +102,7 @@ func (m *BeegfsMetaCollector) Init(config json.RawMessage) error {
 	// Beegfs file system statistics can only be queried by user root
 	user, err := user.Current()
 	if err != nil {
-		return fmt.Errorf("BeegfsMetaCollector.Init(): Failed to get current user: %w", err)
+		return fmt.Errorf("BeegfsMetaCollector.Init(): Failed to get current user: %v", err)
 	}
 	if user.Uid != "0" {
 		return fmt.Errorf("BeegfsMetaCollector.Init(): BeeGFS file system statistics can only be queried by user root")
@@ -113,7 +111,7 @@ func (m *BeegfsMetaCollector) Init(config json.RawMessage) error {
 	// Check if beegfs-ctl is in executable search path
 	_, err = exec.LookPath(m.config.Beegfs)
 	if err != nil {
-		return fmt.Errorf("BeegfsMetaCollector.Init(): Failed to find beegfs-ctl binary '%s': %w", m.config.Beegfs, err)
+		return fmt.Errorf("BeegfsMetaCollector.Init(): Failed to find beegfs-ctl binary '%s': %v", m.config.Beegfs, err)
 	}
 	m.init = true
 	return nil
@@ -123,7 +121,7 @@ func (m *BeegfsMetaCollector) Read(interval time.Duration, output chan lp.CCMess
 	if !m.init {
 		return
 	}
-	// Get mounpoint
+	//get mounpoint
 	buffer, _ := os.ReadFile(string("/proc/mounts"))
 	mounts := strings.Split(string(buffer), "\n")
 	var mountpoints []string
@@ -164,15 +162,12 @@ func (m *BeegfsMetaCollector) Read(interval time.Duration, output chan lp.CCMess
 		cmd.Stderr = cmdStderr
 		err := cmd.Run()
 		if err != nil {
-			dataStdErr, _ := io.ReadAll(cmdStderr)
+			fmt.Fprintf(os.Stderr, "BeegfsMetaCollector.Read(): Failed to execute command \"%s\": %s\n", cmd.String(), err.Error())
-			dataStdOut, _ := io.ReadAll(cmdStdout)
+			fmt.Fprintf(os.Stderr, "BeegfsMetaCollector.Read(): command exit code: \"%d\"\n", cmd.ProcessState.ExitCode())
-			cclog.ComponentError(
+			data, _ := io.ReadAll(cmdStderr)
-				m.name,
+			fmt.Fprintf(os.Stderr, "BeegfsMetaCollector.Read(): command stderr: \"%s\"\n", string(data))
-				fmt.Sprintf("Read(): Failed to execute command \"%s\": %v\n", cmd.String(), err),
+			data, _ = io.ReadAll(cmdStdout)
-				fmt.Sprintf("Read(): command exit code: \"%d\"\n", cmd.ProcessState.ExitCode()),
+			fmt.Fprintf(os.Stderr, "BeegfsMetaCollector.Read(): command stdout: \"%s\"\n", string(data))
-				fmt.Sprintf("Read(): command stderr: \"%s\"\n", string(dataStdErr)),
-				fmt.Sprintf("Read(): command stdout: \"%s\"\n", string(dataStdOut)),
-			)
 			return
 		}
 		// Read I/O statistics
@@ -228,7 +223,7 @@ 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]any{"value": value}, time.Now())
+				y, err := lp.NewMessage(key, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
 				if err == nil {
 					output <- y
 				}

collectors/beegfsstorageMetric.go

@@ -17,13 +17,12 @@ import (
 	"os/exec"
 	"os/user"
 	"regexp"
-	"slices"
 	"strconv"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 // Struct for the collector-specific JSON config
@@ -55,9 +54,7 @@ func (m *BeegfsStorageCollector) Init(config json.RawMessage) error {
 		"storInf", "unlnk"}
 
 	m.name = "BeegfsStorageCollector"
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.parallel = true
 	// Set default beegfs-ctl binary
 
@@ -74,7 +71,8 @@ func (m *BeegfsStorageCollector) Init(config json.RawMessage) error {
 	//create map with possible variables
 	m.matches = make(map[string]string)
 	for _, value := range storageStat_array {
-		if slices.Contains(m.config.ExcludeMetrics, value) {
+		_, skip := stringArrayContains(m.config.ExcludeMetrics, value)
+		if skip {
 			m.matches["other"] = "0"
 		} else {
 			m.matches["beegfs_cstorage_"+value] = "0"
@@ -97,7 +95,7 @@ func (m *BeegfsStorageCollector) Init(config json.RawMessage) error {
 	// Beegfs file system statistics can only be queried by user root
 	user, err := user.Current()
 	if err != nil {
-		return fmt.Errorf("BeegfsStorageCollector.Init(): Failed to get current user: %w", err)
+		return fmt.Errorf("BeegfsStorageCollector.Init(): Failed to get current user: %v", err)
 	}
 	if user.Uid != "0" {
 		return fmt.Errorf("BeegfsStorageCollector.Init(): BeeGFS file system statistics can only be queried by user root")
@@ -106,7 +104,7 @@ func (m *BeegfsStorageCollector) Init(config json.RawMessage) error {
 	// Check if beegfs-ctl is in executable search path
 	_, err = exec.LookPath(m.config.Beegfs)
 	if err != nil {
-		return fmt.Errorf("BeegfsStorageCollector.Init(): Failed to find beegfs-ctl binary '%s': %w", m.config.Beegfs, err)
+		return fmt.Errorf("BeegfsStorageCollector.Init(): Failed to find beegfs-ctl binary '%s': %v", m.config.Beegfs, err)
 	}
 	m.init = true
 	return nil
@@ -156,15 +154,12 @@ func (m *BeegfsStorageCollector) Read(interval time.Duration, output chan lp.CCM
 		cmd.Stderr = cmdStderr
 		err := cmd.Run()
 		if err != nil {
-			dataStdErr, _ := io.ReadAll(cmdStderr)
+			fmt.Fprintf(os.Stderr, "BeegfsStorageCollector.Read(): Failed to execute command \"%s\": %s\n", cmd.String(), err.Error())
-			dataStdOut, _ := io.ReadAll(cmdStdout)
+			fmt.Fprintf(os.Stderr, "BeegfsStorageCollector.Read(): command exit code: \"%d\"\n", cmd.ProcessState.ExitCode())
-			cclog.ComponentError(
+			data, _ := io.ReadAll(cmdStderr)
-				m.name,
+			fmt.Fprintf(os.Stderr, "BeegfsStorageCollector.Read(): command stderr: \"%s\"\n", string(data))
-				fmt.Sprintf("Read(): Failed to execute command \"%s\": %v\n", cmd.String(), err),
+			data, _ = io.ReadAll(cmdStdout)
-				fmt.Sprintf("Read(): command exit code: \"%d\"\n", cmd.ProcessState.ExitCode()),
+			fmt.Fprintf(os.Stderr, "BeegfsStorageCollector.Read(): command stdout: \"%s\"\n", string(data))
-				fmt.Sprintf("Read(): command stderr: \"%s\"\n", string(dataStdErr)),
-				fmt.Sprintf("Read(): command stdout: \"%s\"\n", string(dataStdOut)),
-			)
 			return
 		}
 		// Read I/O statistics
@@ -220,7 +215,7 @@ 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]any{"value": value}, time.Now())
+				y, err := lp.NewMessage(key, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
 				if err == nil {
 					output <- y
 				}

collectors/collectorManager.go

@@ -9,12 +9,11 @@ package collectors
 
 import (
 	"encoding/json"
-	"fmt"
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 	mct "github.com/ClusterCockpit/cc-metric-collector/pkg/multiChanTicker"
 )
 
@@ -48,7 +47,6 @@ var AvailableCollectors = map[string]MetricCollector{
 	"self":            new(SelfCollector),
 	"schedstat":       new(SchedstatCollector),
 	"nfsiostat":       new(NfsIOStatCollector),
-	"slurm_cgroup":    new(SlurmCgroupCollector),
 }
 
 // Metric collector manager data structure
@@ -105,7 +103,7 @@ func (cm *collectorManager) Init(ticker mct.MultiChanTicker, duration time.Durat
 
 		err = collector.Init(collectorCfg)
 		if err != nil {
-			cclog.ComponentError("CollectorManager", fmt.Sprintf("Collector %s initialization failed: %v", collectorName, err))
+			cclog.ComponentError("CollectorManager", "Collector", collectorName, "initialization failed:", err.Error())
 			continue
 		}
 		cclog.ComponentDebug("CollectorManager", "ADD COLLECTOR", collector.Name())
@@ -123,7 +121,9 @@ func (cm *collectorManager) Start() {
 	tick := make(chan time.Time)
 	cm.ticker.AddChannel(tick)
 
-	cm.wg.Go(func() {
+	cm.wg.Add(1)
+	go func() {
+		defer cm.wg.Done()
 		// Collector manager is done
 		done := func() {
 			// close all metric collectors
@@ -178,7 +178,7 @@ func (cm *collectorManager) Start() {
 				}
 			}
 		}
-	})
+	}()
 
 	// Collector manager is started
 	cclog.ComponentDebug("CollectorManager", "STARTED")

collectors/cpufreqCpuinfoMetric.go

@@ -17,8 +17,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 // CPUFreqCollector
@@ -35,16 +35,15 @@ type CPUFreqCpuInfoCollector struct {
 	topology []CPUFreqCpuInfoCollectorTopology
 }
 
-func (m *CPUFreqCpuInfoCollector) Init(_ json.RawMessage) error {
+func (m *CPUFreqCpuInfoCollector) Init(config json.RawMessage) error {
 	// Check if already initialized
 	if m.init {
 		return nil
 	}
 
+	m.setup()
+
 	m.name = "CPUFreqCpuInfoCollector"
-	if err := m.setup(); err != nil {
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.parallel = true
 	m.meta = map[string]string{
 		"source": m.name,
@@ -55,8 +54,9 @@ func (m *CPUFreqCpuInfoCollector) Init(_ json.RawMessage) error {
 	const cpuInfoFile = "/proc/cpuinfo"
 	file, err := os.Open(cpuInfoFile)
 	if err != nil {
-		return fmt.Errorf("%s Init(): failed to open file '%s': %w", m.name, cpuInfoFile, err)
+		return fmt.Errorf("failed to open file '%s': %v", cpuInfoFile, err)
 	}
+	defer file.Close()
 
 	// Collect topology information from file cpuinfo
 	foundFreq := false
@@ -86,10 +86,6 @@ func (m *CPUFreqCpuInfoCollector) Init(_ json.RawMessage) error {
 			}
 		}
 
-		if err := file.Close(); err != nil {
-			return fmt.Errorf("%s Init(): Call to file.Close() failed: %w", m.name, err)
-		}
-
 		// were all topology information collected?
 		if foundFreq &&
 			len(processor) > 0 &&
@@ -123,7 +119,7 @@ func (m *CPUFreqCpuInfoCollector) Init(_ json.RawMessage) error {
 
 	// Check if at least one CPU with frequency information was detected
 	if len(m.topology) == 0 {
-		return fmt.Errorf("%s Init(): no CPU frequency info found in %s", m.name, cpuInfoFile)
+		return fmt.Errorf("no CPU frequency info found in %s", cpuInfoFile)
 	}
 
 	m.init = true
@@ -144,13 +140,7 @@ func (m *CPUFreqCpuInfoCollector) Read(interval time.Duration, output chan lp.CC
 			fmt.Sprintf("Read(): Failed to open file '%s': %v", cpuInfoFile, err))
 		return
 	}
-	defer func() {
+	defer file.Close()
-		if err := file.Close(); err != nil {
-			cclog.ComponentError(
-				m.name,
-				fmt.Sprintf("Read(): Failed to close file '%s': %v", cpuInfoFile, err))
-		}
-	}()
 
 	processorCounter := 0
 	now := time.Now()
@@ -171,7 +161,7 @@ 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]any{"value": value}, now); err == nil {
+					if y, err := lp.NewMessage("cpufreq", t.tagSet, m.meta, map[string]interface{}{"value": value}, now); err == nil {
 						output <- y
 					}
 				}

collectors/cpufreqMetric.go

@@ -16,8 +16,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 	"github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
 	"golang.org/x/sys/unix"
 )
@@ -48,9 +48,7 @@ func (m *CPUFreqCollector) Init(config json.RawMessage) error {
 	}
 
 	m.name = "CPUFreqCollector"
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.parallel = true
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
@@ -76,15 +74,15 @@ func (m *CPUFreqCollector) Init(config json.RawMessage) error {
 		scalingCurFreqFile := filepath.Join("/sys/devices/system/cpu", fmt.Sprintf("cpu%d", c.CpuID), "cpufreq/scaling_cur_freq")
 		err := unix.Access(scalingCurFreqFile, unix.R_OK)
 		if err != nil {
-			return fmt.Errorf("unable to access file '%s': %w", scalingCurFreqFile, err)
+			return fmt.Errorf("unable to access file '%s': %v", scalingCurFreqFile, err)
 		}
 
 		m.topology = append(m.topology,
 			CPUFreqCollectorTopology{
 				tagSet: map[string]string{
 					"type":       "hwthread",
-					"type-id":    strconv.Itoa(c.CpuID),
+					"type-id":    fmt.Sprint(c.CpuID),
-					"package_id": strconv.Itoa(c.Socket),
+					"package_id": fmt.Sprint(c.Socket),
 				},
 				scalingCurFreqFile: scalingCurFreqFile,
 			},
@@ -126,7 +124,7 @@ func (m *CPUFreqCollector) Read(interval time.Duration, output chan lp.CCMessage
 			continue
 		}
 
-		if y, err := lp.NewMessage("cpufreq", t.tagSet, m.meta, map[string]any{"value": cpuFreq}, now); err == nil {
+		if y, err := lp.NewMessage("cpufreq", t.tagSet, m.meta, map[string]interface{}{"value": cpuFreq}, now); err == nil {
 			output <- y
 		}
 	}

collectors/cpustatMetric.go

@@ -12,13 +12,12 @@ import (
 	"encoding/json"
 	"fmt"
 	"os"
-	"slices"
 	"strconv"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 	sysconf "github.com/tklauser/go-sysconf"
 )
 
@@ -40,17 +39,10 @@ type CpustatCollector struct {
 
 func (m *CpustatCollector) Init(config json.RawMessage) error {
 	m.name = "CpustatCollector"
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.parallel = true
-	m.meta = map[string]string{
+	m.meta = map[string]string{"source": m.name, "group": "CPU"}
-		"source": m.name,
+	m.nodetags = map[string]string{"type": "node"}
-		"group":  "CPU",
-	}
-	m.nodetags = map[string]string{
-		"type": "node",
-	}
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
@@ -72,7 +64,14 @@ func (m *CpustatCollector) Init(config json.RawMessage) error {
 
 	m.matches = make(map[string]int)
 	for match, index := range matches {
-		if !slices.Contains(m.config.ExcludeMetrics, match) {
+		doExclude := false
+		for _, exclude := range m.config.ExcludeMetrics {
+			if match == exclude {
+				doExclude = true
+				break
+			}
+		}
+		if !doExclude {
 			m.matches[match] = index
 		}
 	}
@@ -80,17 +79,9 @@ func (m *CpustatCollector) Init(config json.RawMessage) error {
 	// Check input file
 	file, err := os.Open(string(CPUSTATFILE))
 	if err != nil {
-		cclog.ComponentError(
+		cclog.ComponentError(m.name, err.Error())
-			m.name,
-			fmt.Sprintf("Init(): Failed to open file '%s': %v", string(CPUSTATFILE), err))
 	}
-	defer func() {
+	defer file.Close()
-		if err := file.Close(); err != nil {
-			cclog.ComponentError(
-				m.name,
-				fmt.Sprintf("Init(): Failed to close file '%s': %v", string(CPUSTATFILE), err))
-		}
-	}()
 
 	// Pre-generate tags for all CPUs
 	num_cpus := 0
@@ -108,9 +99,7 @@ func (m *CpustatCollector) Init(config json.RawMessage) error {
 		} else if strings.HasPrefix(linefields[0], "cpu") && strings.Compare(linefields[0], "cpu") != 0 {
 			cpustr := strings.TrimLeft(linefields[0], "cpu")
 			cpu, _ := strconv.Atoi(cpustr)
-			m.cputags[linefields[0]] = map[string]string{
+			m.cputags[linefields[0]] = map[string]string{"type": "hwthread", "type-id": fmt.Sprintf("%d", cpu)}
-				"type":    "hwthread",
-				"type-id": strconv.Itoa(cpu)}
 			m.olddata[linefields[0]] = make(map[string]int64)
 			for k, v := range m.matches {
 				m.olddata[linefields[0]][k], _ = strconv.ParseInt(linefields[v], 0, 64)
@@ -140,7 +129,7 @@ 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]any{"value": value * 100}, now)
+		y, err := lp.NewMessage(name, tags, m.meta, map[string]interface{}{"value": value * 100}, now)
 		if err == nil {
 			y.AddTag("unit", "Percent")
 			output <- y
@@ -148,7 +137,7 @@ func (m *CpustatCollector) parseStatLine(linefields []string, tags map[string]st
 	}
 	if v, ok := values["cpu_idle"]; ok {
 		sum -= v
-		y, err := lp.NewMessage("cpu_used", tags, m.meta, map[string]any{"value": sum * 100}, now)
+		y, err := lp.NewMessage("cpu_used", tags, m.meta, map[string]interface{}{"value": sum * 100}, now)
 		if err == nil {
 			y.AddTag("unit", "Percent")
 			output <- y
@@ -166,17 +155,9 @@ func (m *CpustatCollector) Read(interval time.Duration, output chan lp.CCMessage
 
 	file, err := os.Open(string(CPUSTATFILE))
 	if err != nil {
-		cclog.ComponentError(
+		cclog.ComponentError(m.name, err.Error())
-			m.name,
-			fmt.Sprintf("Read(): Failed to open file '%s': %v", string(CPUSTATFILE), err))
 	}
-	defer func() {
+	defer file.Close()
-		if err := file.Close(); err != nil {
-			cclog.ComponentError(
-				m.name,
-				fmt.Sprintf("Read(): Failed to close file '%s': %v", string(CPUSTATFILE), err))
-		}
-	}()
 
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {
@@ -193,7 +174,7 @@ func (m *CpustatCollector) Read(interval time.Duration, output chan lp.CCMessage
 	num_cpus_metric, err := lp.NewMessage("num_cpus",
 		m.nodetags,
 		m.meta,
-		map[string]any{"value": num_cpus},
+		map[string]interface{}{"value": int(num_cpus)},
 		now,
 	)
 	if err == nil {

collectors/customCmdMetric.go

@@ -8,22 +8,16 @@
 package collectors
 
 import (
-	"bytes"
 	"encoding/json"
 	"errors"
-	"fmt"
+	"log"
-	"io"
 	"os"
 	"os/exec"
-	"slices"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	influx "github.com/influxdata/line-protocol"
-
-	receivers "github.com/ClusterCockpit/cc-lib/v2/receivers"
-	lp2 "github.com/influxdata/line-protocol/v2/lineprotocol"
 )
 
 const CUSTOMCMDPATH = `/home/unrz139/Work/cc-metric-collector/collectors/custom`
@@ -36,155 +30,102 @@ type CustomCmdCollectorConfig struct {
 
 type CustomCmdCollector struct {
 	metricCollector
+	handler  *influx.MetricHandler
+	parser   *influx.Parser
 	config   CustomCmdCollectorConfig
-	cmdFieldsSlice [][]string
+	commands []string
 	files    []string
 }
 
 func (m *CustomCmdCollector) Init(config json.RawMessage) error {
+	var err error
 	m.name = "CustomCmdCollector"
 	m.parallel = true
-	m.meta = map[string]string{
+	m.meta = map[string]string{"source": m.name, "group": "Custom"}
-		"source": m.name,
-		"group":  "Custom",
-	}
-
-	// Read configuration
 	if len(config) > 0 {
-		if err := json.Unmarshal(config, &m.config); err != nil {
+		err = json.Unmarshal(config, &m.config)
-			return fmt.Errorf("%s Init(): json.Unmarshal() call failed: %w", m.name, err)
+		if err != nil {
+			log.Print(err.Error())
+			return err
 		}
 	}
-
+	m.setup()
-	// Setup
-	if err := m.setup(); err != nil {
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
-
-	// Check if command can be executed
 	for _, c := range m.config.Commands {
-		cmdFields := strings.Fields(c)
+		cmdfields := strings.Fields(c)
-		command := exec.Command(cmdFields[0], cmdFields[1:]...)
+		command := exec.Command(cmdfields[0], strings.Join(cmdfields[1:], " "))
-		if _, err := command.Output(); err != nil {
+		command.Wait()
-			cclog.ComponentWarn(
+		_, err = command.Output()
-				m.name,
+		if err == nil {
-				fmt.Sprintf("%s Init(): Execution of command \"%s\" failed: %v", m.name, command.String(), err))
+			m.commands = append(m.commands, c)
+		}
+	}
+	for _, f := range m.config.Files {
+		_, err = os.ReadFile(f)
+		if err == nil {
+			m.files = append(m.files, f)
+		} else {
+			log.Print(err.Error())
 			continue
 		}
-		m.cmdFieldsSlice = append(m.cmdFieldsSlice, cmdFields)
 	}
-
+	if len(m.files) == 0 && len(m.commands) == 0 {
-	// Check if file can be read
-	for _, fileName := range m.config.Files {
-		if _, err := os.ReadFile(fileName); err != nil {
-			cclog.ComponentWarn(
-				m.name,
-				fmt.Sprintf("%s Init(): Reading of file \"%s\" failed: %v", m.name, fileName, err))
-			continue
-		}
-		m.files = append(m.files, fileName)
-	}
-
-	if len(m.files) == 0 && len(m.cmdFieldsSlice) == 0 {
 		return errors.New("no metrics to collect")
 	}
+	m.handler = influx.NewMetricHandler()
+	m.parser = influx.NewParser(m.handler)
+	m.parser.SetTimeFunc(DefaultTime)
 	m.init = true
 	return nil
 }
 
+var DefaultTime = func() time.Time {
+	return time.Unix(42, 0)
+}
+
 func (m *CustomCmdCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 	if !m.init {
 		return
 	}
-
+	for _, cmd := range m.commands {
-	// Execute configured commands
+		cmdfields := strings.Fields(cmd)
-	for _, cmdFields := range m.cmdFieldsSlice {
+		command := exec.Command(cmdfields[0], strings.Join(cmdfields[1:], " "))
-		command := exec.Command(cmdFields[0], cmdFields[1:]...)
+		command.Wait()
-		stdout, err := command.StdoutPipe()
+		stdout, err := command.Output()
 		if err != nil {
-			cclog.ComponentError(
+			log.Print(err)
-				m.name,
-				fmt.Sprintf("Read(): Failed to create stdout pipe for command \"%s\": %v", command.String(), err),
-			)
 			continue
 		}
-		errBuf := new(bytes.Buffer)
+		cmdmetrics, err := m.parser.Parse(stdout)
-		command.Stderr = errBuf
-
-		// Start command
-		if err := command.Start(); err != nil {
-			cclog.ComponentError(
-				m.name,
-				fmt.Sprintf("Read(): Failed to start command \"%s\": %v", command.String(), err),
-			)
-			continue
-		}
-
-		// Read and decode influxDB line-protocol from command output
-		d := lp2.NewDecoder(stdout)
-		for d.Next() {
-			metric, err := receivers.DecodeInfluxMessage(d)
 		if err != nil {
-				cclog.ComponentError(
+			log.Print(err)
-					m.name,
-					fmt.Sprintf("Read(): Failed to decode influx Message: %v", err),
-				)
 			continue
 		}
-			if slices.Contains(m.config.ExcludeMetrics, metric.Name()) {
+		for _, c := range cmdmetrics {
+			_, skip := stringArrayContains(m.config.ExcludeMetrics, c.Name())
+			if skip {
 				continue
 			}
-			output <- metric
-		}
 
-		// Wait for command end
+			output <- lp.FromInfluxMetric(c)
-		if err := command.Wait(); err != nil {
-			errMsg, _ := io.ReadAll(errBuf)
-			cclog.ComponentError(
-				m.name,
-				fmt.Sprintf("Read(): Failed to wait for the end of command \"%s\": %v\n", command.String(), err),
-			)
-			cclog.ComponentError(
-				m.name,
-				fmt.Sprintf("Read(): command stderr: \"%s\"\n", strings.TrimSpace(string(errMsg))))
-			continue
 		}
 	}
-
+	for _, file := range m.files {
-	// Read configured files
+		buffer, err := os.ReadFile(file)
-	for _, filename := range m.files {
-		file, err := os.Open(filename)
 		if err != nil {
-			cclog.ComponentError(
+			log.Print(err)
-				m.name,
+			return
-				fmt.Sprintf("Read(): Failed to open file \"%s\": %v\n", filename, err),
-			)
-			continue
 		}
-
+		fmetrics, err := m.parser.Parse(buffer)
-		// Read and decode influxDB line-protocol from file
-		d := lp2.NewDecoder(file)
-		for d.Next() {
-			metric, err := receivers.DecodeInfluxMessage(d)
 		if err != nil {
-				cclog.ComponentError(
+			log.Print(err)
-					m.name,
-					fmt.Sprintf("Read(): Failed to decode influx Message: %v", err),
-				)
 			continue
 		}
-			if slices.Contains(m.config.ExcludeMetrics, metric.Name()) {
+		for _, f := range fmetrics {
+			_, skip := stringArrayContains(m.config.ExcludeMetrics, f.Name())
+			if skip {
 				continue
 			}
-			output <- metric
+			output <- lp.FromInfluxMetric(f)
-		}
-
-		if err := file.Close(); err != nil {
-			cclog.ComponentError(
-				m.name,
-				fmt.Sprintf("Read(): Failed to close file \"%s\": %v\n", filename, err),
-			)
-			continue
 		}
 	}
 }

collectors/diskstatMetric.go

@@ -10,14 +10,13 @@ package collectors
 import (
 	"bufio"
 	"encoding/json"
-	"fmt"
 	"os"
 	"strings"
 	"syscall"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 const MOUNTFILE = `/proc/self/mounts`
@@ -37,9 +36,7 @@ func (m *DiskstatCollector) Init(config json.RawMessage) error {
 	m.name = "DiskstatCollector"
 	m.parallel = true
 	m.meta = map[string]string{"source": m.name, "group": "Disk"}
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	if len(config) > 0 {
 		if err := json.Unmarshal(config, &m.config); err != nil {
 			return err
@@ -57,11 +54,10 @@ func (m *DiskstatCollector) Init(config json.RawMessage) error {
 	}
 	file, err := os.Open(MOUNTFILE)
 	if err != nil {
-		return fmt.Errorf("%s Init(): file open for file \"%s\" failed: %w", m.name, MOUNTFILE, err)
+		cclog.ComponentError(m.name, err.Error())
-	}
+		return err
-	if err := file.Close(); err != nil {
-		return fmt.Errorf("%s Init(): file close for file \"%s\" failed: %w", m.name, MOUNTFILE, err)
 	}
+	defer file.Close()
 	m.init = true
 	return nil
 }
@@ -73,18 +69,10 @@ func (m *DiskstatCollector) Read(interval time.Duration, output chan lp.CCMessag
 
 	file, err := os.Open(MOUNTFILE)
 	if err != nil {
-		cclog.ComponentError(
+		cclog.ComponentError(m.name, err.Error())
-			m.name,
-			fmt.Sprintf("Read(): Failed to open file '%s': %v", MOUNTFILE, err))
 		return
 	}
-	defer func() {
+	defer file.Close()
-		if err := file.Close(); err != nil {
-			cclog.ComponentError(
-				m.name,
-				fmt.Sprintf("Read(): Failed to close file '%s': %v", MOUNTFILE, err))
-		}
-	}()
 
 	part_max_used := uint64(0)
 	scanner := bufio.NewScanner(file)
@@ -105,7 +93,7 @@ mountLoop:
 			continue
 		}
 
-		mountPath := strings.ReplaceAll(linefields[1], `\040`, " ")
+		mountPath := strings.Replace(linefields[1], `\040`, " ", -1)
 
 		for _, excl := range m.config.ExcludeMounts {
 			if strings.Contains(mountPath, excl) {
@@ -124,13 +112,7 @@ 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(
+			y, err := lp.NewMessage("disk_total", tags, m.meta, map[string]interface{}{"value": total}, time.Now())
-				"disk_total",
-				tags,
-				m.meta,
-				map[string]any{
-					"value": total},
-				time.Now())
 			if err == nil {
 				y.AddMeta("unit", "GBytes")
 				output <- y
@@ -138,13 +120,7 @@ mountLoop:
 		}
 		free := (stat.Bfree * uint64(stat.Bsize)) / uint64(1000000000)
 		if m.allowedMetrics["disk_free"] {
-			y, err := lp.NewMessage(
+			y, err := lp.NewMessage("disk_free", tags, m.meta, map[string]interface{}{"value": free}, time.Now())
-				"disk_free",
-				tags,
-				m.meta,
-				map[string]any{
-					"value": free},
-				time.Now())
 			if err == nil {
 				y.AddMeta("unit", "GBytes")
 				output <- y
@@ -158,14 +134,7 @@ mountLoop:
 		}
 	}
 	if m.allowedMetrics["part_max_used"] {
-		y, err := lp.NewMessage(
+		y, err := lp.NewMessage("part_max_used", map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": int(part_max_used)}, time.Now())
-			"part_max_used",
-			map[string]string{
-				"type": "node"},
-			m.meta,
-			map[string]any{
-				"value": int(part_max_used)},
-			time.Now())
 		if err == nil {
 			y.AddMeta("unit", "percent")
 			output <- y

collectors/gpfsMetric.go

@@ -11,297 +11,38 @@ import (
 	"bufio"
 	"bytes"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"io"
+	"log"
 	"os/exec"
 	"os/user"
-	"slices"
 	"strconv"
 	"strings"
-	"syscall"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 const DEFAULT_GPFS_CMD = "mmpmon"
 
-type GpfsCollectorState map[string]int64
+type GpfsCollectorLastState struct {
-
+	bytesRead    int64
-type GpfsCollectorConfig struct {
+	bytesWritten int64
-	Mmpmon             string   `json:"mmpmon_path,omitempty"`
-	ExcludeFilesystem  []string `json:"exclude_filesystem,omitempty"`
-	ExcludeMetrics     []string `json:"exclude_metrics,omitempty"`
-	Sudo               bool     `json:"use_sudo,omitempty"`
-	SendAbsoluteValues bool     `json:"send_abs_values,omitempty"`
-	SendDiffValues     bool     `json:"send_diff_values,omitempty"`
-	SendDerivedValues  bool     `json:"send_derived_values,omitempty"`
-	SendTotalValues    bool     `json:"send_total_values,omitempty"`
-	SendBandwidths     bool     `json:"send_bandwidths,omitempty"`
-}
-
-type GpfsMetricDefinition struct {
-	name   string
-	desc   string
-	prefix string
-	unit   string
-	calc   string
 }
 
 type GpfsCollector struct {
 	metricCollector
 	tags   map[string]string
-	config        GpfsCollectorConfig
+	config struct {
-	sudoCmd       string
+		Mmpmon            string   `json:"mmpmon_path,omitempty"`
+		ExcludeFilesystem []string `json:"exclude_filesystem,omitempty"`
+		SendBandwidths    bool     `json:"send_bandwidths"`
+		SendTotalValues   bool     `json:"send_total_values"`
+	}
 	skipFS        map[string]struct{}
-	lastTimestamp map[string]time.Time          // Store timestamp of lastState per filesystem to derive bandwidths
+	lastTimestamp time.Time // Store time stamp of last tick to derive bandwidths
-	definitions   []GpfsMetricDefinition        // all metrics to report
+	lastState     map[string]GpfsCollectorLastState
-	lastState     map[string]GpfsCollectorState // one GpfsCollectorState per filesystem
-}
-
-var GpfsAbsMetrics = []GpfsMetricDefinition{
-	{
-		name:   "gpfs_num_opens",
-		desc:   "number of opens",
-		prefix: "_oc_",
-		unit:   "requests",
-		calc:   "none",
-	},
-	{
-		name:   "gpfs_num_closes",
-		desc:   "number of closes",
-		prefix: "_cc_",
-		unit:   "requests",
-		calc:   "none",
-	},
-	{
-		name:   "gpfs_num_reads",
-		desc:   "number of reads",
-		prefix: "_rdc_",
-		unit:   "requests",
-		calc:   "none",
-	},
-	{
-		name:   "gpfs_num_writes",
-		desc:   "number of writes",
-		prefix: "_wc_",
-		unit:   "requests",
-		calc:   "none",
-	},
-	{
-		name:   "gpfs_num_readdirs",
-		desc:   "number of readdirs",
-		prefix: "_dir_",
-		unit:   "requests",
-		calc:   "none",
-	},
-	{
-		name:   "gpfs_num_inode_updates",
-		desc:   "number of Inode Updates",
-		prefix: "_iu_",
-		unit:   "requests",
-		calc:   "none",
-	},
-	{
-		name:   "gpfs_bytes_read",
-		desc:   "bytes read",
-		prefix: "_br_",
-		unit:   "bytes",
-		calc:   "none",
-	},
-	{
-		name:   "gpfs_bytes_written",
-		desc:   "bytes written",
-		prefix: "_bw_",
-		unit:   "bytes",
-		calc:   "none",
-	},
-}
-
-var GpfsDiffMetrics = []GpfsMetricDefinition{
-	{
-		name:   "gpfs_num_opens_diff",
-		desc:   "number of opens (diff)",
-		prefix: "_oc_",
-		unit:   "requests",
-		calc:   "difference",
-	},
-	{
-		name:   "gpfs_num_closes_diff",
-		desc:   "number of closes (diff)",
-		prefix: "_cc_",
-		unit:   "requests",
-		calc:   "difference",
-	},
-	{
-		name:   "gpfs_num_reads_diff",
-		desc:   "number of reads (diff)",
-		prefix: "_rdc_",
-		unit:   "requests",
-		calc:   "difference",
-	},
-	{
-		name:   "gpfs_num_writes_diff",
-		desc:   "number of writes (diff)",
-		prefix: "_wc_",
-		unit:   "requests",
-		calc:   "difference",
-	},
-	{
-		name:   "gpfs_num_readdirs_diff",
-		desc:   "number of readdirs (diff)",
-		prefix: "_dir_",
-		unit:   "requests",
-		calc:   "difference",
-	},
-	{
-		name:   "gpfs_num_inode_updates_diff",
-		desc:   "number of Inode Updates (diff)",
-		prefix: "_iu_",
-		unit:   "requests",
-		calc:   "difference",
-	},
-	{
-		name:   "gpfs_bytes_read_diff",
-		desc:   "bytes read (diff)",
-		prefix: "_br_",
-		unit:   "bytes",
-		calc:   "difference",
-	},
-	{
-		name:   "gpfs_bytes_written_diff",
-		desc:   "bytes written (diff)",
-		prefix: "_bw_",
-		unit:   "bytes",
-		calc:   "difference",
-	},
-}
-
-var GpfsDeriveMetrics = []GpfsMetricDefinition{
-	{
-		name:   "gpfs_opens_rate",
-		desc:   "number of opens (rate)",
-		prefix: "_oc_",
-		unit:   "requests/sec",
-		calc:   "derivative",
-	},
-	{
-		name:   "gpfs_closes_rate",
-		desc:   "number of closes (rate)",
-		prefix: "_oc_",
-		unit:   "requests/sec",
-		calc:   "derivative",
-	},
-	{
-		name:   "gpfs_reads_rate",
-		desc:   "number of reads (rate)",
-		prefix: "_rdc_",
-		unit:   "requests/sec",
-		calc:   "derivative",
-	},
-	{
-		name:   "gpfs_writes_rate",
-		desc:   "number of writes (rate)",
-		prefix: "_wc_",
-		unit:   "requests/sec",
-		calc:   "derivative",
-	},
-	{
-		name:   "gpfs_readdirs_rate",
-		desc:   "number of readdirs (rate)",
-		prefix: "_dir_",
-		unit:   "requests/sec",
-		calc:   "derivative",
-	},
-	{
-		name:   "gpfs_inode_updates_rate",
-		desc:   "number of Inode Updates (rate)",
-		prefix: "_iu_",
-		unit:   "requests/sec",
-		calc:   "derivative",
-	},
-	{
-		name:   "gpfs_bw_read",
-		desc:   "bytes read (rate)",
-		prefix: "_br_",
-		unit:   "bytes/sec",
-		calc:   "derivative",
-	},
-	{
-		name:   "gpfs_bw_write",
-		desc:   "bytes written (rate)",
-		prefix: "_bw_",
-		unit:   "bytes/sec",
-		calc:   "derivative",
-	},
-}
-
-var GpfsTotalMetrics = []GpfsMetricDefinition{
-	{
-		name:   "gpfs_bytes_total",
-		desc:   "bytes total",
-		prefix: "bytesTotal",
-		unit:   "bytes",
-		calc:   "none",
-	},
-	{
-		name:   "gpfs_bytes_total_diff",
-		desc:   "bytes total (diff)",
-		prefix: "bytesTotal",
-		unit:   "bytes",
-		calc:   "difference",
-	},
-	{
-		name:   "gpfs_bw_total",
-		desc:   "bytes total (rate)",
-		prefix: "bytesTotal",
-		unit:   "bytes/sec",
-		calc:   "derivative",
-	},
-	{
-		name:   "gpfs_iops",
-		desc:   "iops",
-		prefix: "iops",
-		unit:   "requests",
-		calc:   "none",
-	},
-	{
-		name:   "gpfs_iops_diff",
-		desc:   "iops  (diff)",
-		prefix: "iops",
-		unit:   "requests",
-		calc:   "difference",
-	},
-	{
-		name:   "gpfs_iops_rate",
-		desc:   "iops (rate)",
-		prefix: "iops",
-		unit:   "requests/sec",
-		calc:   "derivative",
-	},
-	{
-		name:   "gpfs_metaops",
-		desc:   "metaops",
-		prefix: "metaops",
-		unit:   "requests",
-		calc:   "none",
-	},
-	{
-		name:   "gpfs_metaops_diff",
-		desc:   "metaops (diff)",
-		prefix: "metaops",
-		unit:   "requests",
-		calc:   "difference",
-	},
-	{
-		name:   "gpfs_metaops_rate",
-		desc:   "metaops (rate)",
-		prefix: "metaops",
-		unit:   "requests/sec",
-		calc:   "derivative",
-	},
 }
 
 func (m *GpfsCollector) Init(config json.RawMessage) error {
@@ -310,10 +51,9 @@ func (m *GpfsCollector) Init(config json.RawMessage) error {
 		return nil
 	}
 
+	var err error
 	m.name = "GpfsCollector"
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.parallel = true
 
 	// Set default mmpmon binary
@@ -321,9 +61,10 @@ func (m *GpfsCollector) Init(config json.RawMessage) error {
 
 	// Read JSON configuration
 	if len(config) > 0 {
-		err := json.Unmarshal(config, &m.config)
+		err = json.Unmarshal(config, &m.config)
 		if err != nil {
-			return fmt.Errorf("%s Init(): failed to unmarshal JSON config: %w", m.name, err)
+			log.Print(err.Error())
+			return err
 		}
 	}
 	m.meta = map[string]string{
@@ -338,104 +79,24 @@ func (m *GpfsCollector) Init(config json.RawMessage) error {
 	for _, fs := range m.config.ExcludeFilesystem {
 		m.skipFS[fs] = struct{}{}
 	}
-	m.lastState = make(map[string]GpfsCollectorState)
+	m.lastState = make(map[string]GpfsCollectorLastState)
-	m.lastTimestamp = make(map[string]time.Time)
 
 	// GPFS / IBM Spectrum Scale file system statistics can only be queried by user root
-	if !m.config.Sudo {
 	user, err := user.Current()
 	if err != nil {
-			cclog.ComponentError(m.name, "Failed to get current user:", err.Error())
+		return fmt.Errorf("failed to get current user: %v", err)
-			return err
 	}
 	if user.Uid != "0" {
-			cclog.ComponentError(m.name, "GPFS file system statistics can only be queried by user root")
+		return fmt.Errorf("GPFS file system statistics can only be queried by user root")
-			return err
-		}
-	} else {
-		p, err := exec.LookPath("sudo")
-		if err != nil {
-			cclog.ComponentError(m.name, "Cannot find 'sudo'")
-			return err
-		}
-		m.sudoCmd = p
-	}
-
-	// when using sudo, the full path of mmpmon must be specified because
-	// exec.LookPath will not work as mmpmon is not executable as user
-	if m.config.Sudo && !strings.HasPrefix(m.config.Mmpmon, "/") {
-		return fmt.Errorf("%s Init(): when using sudo, mmpmon_path must be provided and an absolute path: %s", m.name, m.config.Mmpmon)
 	}
 
 	// Check if mmpmon is in executable search path
 	p, err := exec.LookPath(m.config.Mmpmon)
 	if err != nil {
-		// if using sudo, exec.lookPath will return EACCES (file mode r-x------), this can be ignored
+		return fmt.Errorf("failed to find mmpmon binary '%s': %v", m.config.Mmpmon, err)
-		if m.config.Sudo && errors.Is(err, syscall.EACCES) {
-			cclog.ComponentWarn(m.name, fmt.Sprintf("got error looking for mmpmon binary '%s': %v . This is expected when using sudo, continuing.", m.config.Mmpmon, err))
-			// the file was given in the config, use it
-			p = m.config.Mmpmon
-		} else {
-			cclog.ComponentError(m.name, fmt.Sprintf("failed to find mmpmon binary '%s': %v", m.config.Mmpmon, err))
-			return fmt.Errorf("%s Init(): failed to find mmpmon binary '%s': %w", m.name, m.config.Mmpmon, err)
-		}
 	}
 	m.config.Mmpmon = p
 
-	m.definitions = []GpfsMetricDefinition{}
-	if m.config.SendAbsoluteValues {
-		for _, def := range GpfsAbsMetrics {
-			if !slices.Contains(m.config.ExcludeMetrics, def.name) {
-				m.definitions = append(m.definitions, def)
-			}
-		}
-	}
-	if m.config.SendDiffValues {
-		for _, def := range GpfsDiffMetrics {
-			if !slices.Contains(m.config.ExcludeMetrics, def.name) {
-				m.definitions = append(m.definitions, def)
-			}
-		}
-	}
-	if m.config.SendDerivedValues {
-		for _, def := range GpfsDeriveMetrics {
-			if !slices.Contains(m.config.ExcludeMetrics, def.name) {
-				m.definitions = append(m.definitions, def)
-			}
-		}
-	} else if m.config.SendBandwidths {
-		for _, def := range GpfsDeriveMetrics {
-			if def.unit == "bytes/sec" {
-				if !slices.Contains(m.config.ExcludeMetrics, def.name) {
-					m.definitions = append(m.definitions, def)
-				}
-			}
-		}
-	}
-	if m.config.SendTotalValues {
-		for _, def := range GpfsTotalMetrics {
-			if !slices.Contains(m.config.ExcludeMetrics, def.name) {
-				// only send total metrics of the types requested
-				if (def.calc == "none" && m.config.SendAbsoluteValues) ||
-					(def.calc == "difference" && m.config.SendDiffValues) ||
-					(def.calc == "derivative" && m.config.SendDerivedValues) {
-					m.definitions = append(m.definitions, def)
-				}
-			}
-		}
-	} else if m.config.SendBandwidths {
-		for _, def := range GpfsTotalMetrics {
-			if def.unit == "bytes/sec" {
-				if !slices.Contains(m.config.ExcludeMetrics, def.name) {
-					m.definitions = append(m.definitions, def)
-				}
-			}
-		}
-	}
-	if len(m.definitions) == 0 {
-		return errors.New("no metrics to collect")
-	}
-
 	m.init = true
 	return nil
 }
@@ -446,17 +107,18 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 		return
 	}
 
+	// Current time stamp
+	now := time.Now()
+	// time difference to last time stamp
+	timeDiff := now.Sub(m.lastTimestamp).Seconds()
+	// Save current timestamp
+	m.lastTimestamp = now
+
 	// mmpmon:
 	// -p: generate output that can be parsed
 	// -s: suppress the prompt on input
 	// fs_io_s: Displays I/O statistics per mounted file system
-	var cmd *exec.Cmd
+	cmd := exec.Command(m.config.Mmpmon, "-p", "-s")
-	if m.config.Sudo {
-		cmd = exec.Command(m.sudoCmd, m.config.Mmpmon, "-p", "-s")
-	} else {
-		cmd = exec.Command(m.config.Mmpmon, "-p", "-s")
-	}
-
 	cmd.Stdin = strings.NewReader("once fs_io_s\n")
 	cmdStdout := new(bytes.Buffer)
 	cmdStderr := new(bytes.Buffer)
@@ -499,7 +161,9 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 
 		filesystem, ok := key_value["_fs_"]
 		if !ok {
-			cclog.ComponentError(m.name, "Read(): Failed to get filesystem name.")
+			cclog.ComponentError(
+				m.name,
+				"Read(): Failed to get filesystem name.")
 			continue
 		}
 
@@ -511,141 +175,245 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 		// Add filesystem tag
 		m.tags["filesystem"] = filesystem
 
+		// Create initial last state
+		if m.config.SendBandwidths {
 			if _, ok := m.lastState[filesystem]; !ok {
-			m.lastState[filesystem] = make(GpfsCollectorState)
+				m.lastState[filesystem] = GpfsCollectorLastState{
+					bytesRead:    -1,
+					bytesWritten: -1,
+				}
+			}
 		}
 
-		// read the new values from mmpmon
 		// return code
 		rc, err := strconv.Atoi(key_value["_rc_"])
 		if err != nil {
-			cclog.ComponentError(m.name, fmt.Sprintf("Read(): Failed to convert return code '%s' to int: %v", key_value["_rc_"], err))
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert return code '%s' to int: %v", key_value["_rc_"], err))
 			continue
 		}
 		if rc != 0 {
-			cclog.ComponentError(m.name, fmt.Sprintf("Read(): Filesystem '%s' is not ok.", filesystem))
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Filesystem '%s' is not ok.", filesystem))
 			continue
 		}
 
-		// timestamp
 		sec, err := strconv.ParseInt(key_value["_t_"], 10, 64)
 		if err != nil {
-			cclog.ComponentError(m.name, fmt.Sprintf("Read(): Failed to convert seconds '%s' to int64: %v", key_value["_t_"], err))
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert seconds '%s' to int64: %v", key_value["_t_"], err))
 			continue
 		}
 		msec, err := strconv.ParseInt(key_value["_tu_"], 10, 64)
 		if err != nil {
-			cclog.ComponentError(m.name, fmt.Sprintf("Read(): Failed to convert micro seconds '%s' to int64: %v", key_value["_tu_"], err))
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert micro seconds '%s' to int64: %v", key_value["_tu_"], err))
 			continue
 		}
 		timestamp := time.Unix(sec, msec*1000)
 
-		// time difference to last time stamp
+		// bytes read
-		var timeDiff float64 = 0
+		bytesRead, err := strconv.ParseInt(key_value["_br_"], 10, 64)
-		if lastTime, ok := m.lastTimestamp[filesystem]; !ok {
-			m.lastTimestamp[filesystem] = time.Time{}
-		} else {
-			timeDiff = timestamp.Sub(lastTime).Seconds()
-		}
-
-		// get values of all abs metrics
-		newstate := make(GpfsCollectorState)
-		for _, metric := range GpfsAbsMetrics {
-			value, err := strconv.ParseInt(key_value[metric.prefix], 10, 64)
 		if err != nil {
-				cclog.ComponentError(m.name, fmt.Sprintf("Read(): Failed to convert %s '%s' to int64: %v", metric.desc, key_value[metric.prefix], err))
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert bytes read '%s' to int64: %v", key_value["_br_"], err))
 			continue
 		}
-			newstate[metric.prefix] = value
+		if y, err :=
-		}
+			lp.NewMessage(
-
+				"gpfs_bytes_read",
-		// compute total metrics (map[...] will return 0 if key not found)
+				m.tags,
-		// bytes read and written
+				m.meta,
-		if br, br_ok := newstate["_br_"]; br_ok {
+				map[string]interface{}{
-			newstate["bytesTotal"] += br
+					"value": bytesRead,
-		}
+				},
-		if bw, bw_ok := newstate["_bw_"]; bw_ok {
+				timestamp,
-			newstate["bytesTotal"] += bw
+			); err == nil {
-		}
+			y.AddMeta("unit", "bytes")
-		// read and write count
+			output <- y
-		if rdc, rdc_ok := newstate["_rdc_"]; rdc_ok {
+		}
-			newstate["iops"] += rdc
+		if m.config.SendBandwidths {
-		}
+			if lastBytesRead := m.lastState[filesystem].bytesRead; lastBytesRead >= 0 {
-		if wc, wc_ok := newstate["_wc_"]; wc_ok {
+				bwRead := float64(bytesRead-lastBytesRead) / timeDiff
-			newstate["iops"] += wc
+				if y, err :=
-		}
+					lp.NewMessage(
-		// meta operations
+						"gpfs_bw_read",
-		if oc, oc_ok := newstate["_oc_"]; oc_ok {
+						m.tags,
-			newstate["metaops"] += oc
+						m.meta,
-		}
+						map[string]interface{}{
-		if cc, cc_ok := newstate["_cc_"]; cc_ok {
+							"value": bwRead,
-			newstate["metaops"] += cc
+						},
-		}
+						timestamp,
-		if dir, dir_ok := newstate["_dir_"]; dir_ok {
+					); err == nil {
-			newstate["metaops"] += dir
+					y.AddMeta("unit", "bytes/sec")
-		}
-		if iu, iu_ok := newstate["_iu_"]; iu_ok {
-			newstate["metaops"] += iu
-		}
-		// send desired metrics for this filesystem
-		for _, metric := range m.definitions {
-			vold, vold_ok := m.lastState[filesystem][metric.prefix]
-			vnew, vnew_ok := newstate[metric.prefix]
-			var value any
-			value_ok := false
-			switch metric.calc {
-			case "none":
-				if vnew_ok {
-					value = vnew
-					value_ok = true
-				} else if vold_ok {
-					// for absolute values, if the new value is not available, report no change
-					value = vold
-					value_ok = true
-				}
-			case "difference":
-				if vnew_ok && vold_ok {
-					value = vnew - vold
-					if value.(int64) < 0 {
-						value = 0
-					}
-					value_ok = true
-				} else if vold_ok {
-					// if the difference is not computable, return 0
-					value = 0
-					value_ok = true
-				}
-			case "derivative":
-				if vnew_ok && vold_ok && timeDiff > 0 {
-					value = float64(vnew-vold) / timeDiff
-					if value.(float64) < 0.0 {
-						value = 0.0
-					}
-					value_ok = true
-				} else if vold_ok {
-					// if the difference is not computable, return 0
-					value = 0.0
-					value_ok = true
-				}
-			}
-			if value_ok {
-				y, err := lp.NewMetric(metric.name, m.tags, m.meta, value, timestamp)
-				if err == nil {
-					if len(metric.unit) > 0 {
-						y.AddMeta("unit", metric.unit)
-					}
 					output <- y
 				}
-			} else {
-				// the value could not be computed correctly
-				cclog.ComponentWarn(m.name, fmt.Sprintf("Read(): Could not compute value for filesystem %s of metric %s: vold_ok = %t, vnew_ok = %t", filesystem, metric.name, vold_ok, vnew_ok))
 			}
 		}
 
-		// Save new state, if it contains proper values
+		// bytes written
-		if len(newstate) > 0 {
+		bytesWritten, err := strconv.ParseInt(key_value["_bw_"], 10, 64)
-			m.lastState[filesystem] = newstate
+		if err != nil {
-			m.lastTimestamp[filesystem] = timestamp
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to convert bytes written '%s' to int64: %v", key_value["_bw_"], err))
+			continue
+		}
+		if y, err :=
+			lp.NewMessage(
+				"gpfs_bytes_written",
+				m.tags,
+				m.meta,
+				map[string]interface{}{
+					"value": bytesWritten,
+				},
+				timestamp,
+			); err == nil {
+			y.AddMeta("unit", "bytes")
+			output <- y
+		}
+		if m.config.SendBandwidths {
+			if lastBytesWritten := m.lastState[filesystem].bytesRead; lastBytesWritten >= 0 {
+				bwWrite := float64(bytesWritten-lastBytesWritten) / timeDiff
+				if y, err :=
+					lp.NewMessage(
+						"gpfs_bw_write",
+						m.tags,
+						m.meta,
+						map[string]interface{}{
+							"value": bwWrite,
+						},
+						timestamp,
+					); err == nil {
+					y.AddMeta("unit", "bytes/sec")
+					output <- y
+				}
+			}
+		}
+
+		if m.config.SendBandwidths {
+			m.lastState[filesystem] = GpfsCollectorLastState{
+				bytesRead:    bytesRead,
+				bytesWritten: bytesWritten,
+			}
+		}
+
+		// number of opens
+		numOpens, err := strconv.ParseInt(key_value["_oc_"], 10, 64)
+		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				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 {
+			output <- y
+		}
+
+		// number of closes
+		numCloses, err := strconv.ParseInt(key_value["_cc_"], 10, 64)
+		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				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 {
+			output <- y
+		}
+
+		// number of reads
+		numReads, err := strconv.ParseInt(key_value["_rdc_"], 10, 64)
+		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				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 {
+			output <- y
+		}
+
+		// number of writes
+		numWrites, err := strconv.ParseInt(key_value["_wc_"], 10, 64)
+		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				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 {
+			output <- y
+		}
+
+		// number of read directories
+		numReaddirs, err := strconv.ParseInt(key_value["_dir_"], 10, 64)
+		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				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 {
+			output <- y
+		}
+
+		// Number of inode updates
+		numInodeUpdates, err := strconv.ParseInt(key_value["_iu_"], 10, 64)
+		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				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 {
+			output <- y
+		}
+
+		// Total values
+		if m.config.SendTotalValues {
+			bytesTotal := bytesRead + bytesWritten
+			if y, err :=
+				lp.NewMessage("gpfs_bytes_total",
+					m.tags,
+					m.meta,
+					map[string]interface{}{
+						"value": bytesTotal,
+					},
+					timestamp,
+				); err == nil {
+				y.AddMeta("unit", "bytes")
+				output <- y
+			}
+			iops := numReads + numWrites
+			if y, err :=
+				lp.NewMessage("gpfs_iops",
+					m.tags,
+					m.meta,
+					map[string]interface{}{
+						"value": iops,
+					},
+					timestamp,
+				); err == nil {
+				output <- y
+			}
+			metaops := numInodeUpdates + numCloses + numOpens + numReaddirs
+			if y, err :=
+				lp.NewMessage("gpfs_metaops",
+					m.tags,
+					m.meta,
+					map[string]interface{}{
+						"value": metaops,
+					},
+					timestamp,
+				); err == nil {
+				output <- y
+			}
 		}
 	}
 }

collectors/gpfsMetric.md

@@ -12,20 +12,13 @@ hugo_path: docs/reference/cc-metric-collector/collectors/gpfs.md
 ## `gpfs` collector
 
 ```json
-  "gpfs": {
+  "ibstat": {
     "mmpmon_path": "/path/to/mmpmon",
-    "use_sudo": "true",
     "exclude_filesystem": [
       "fs1"
     ],
-    "exclude_metrics": [
+    "send_bandwidths": true,
-      "gpfs_bytes_written"
+    "send_total_values": true
-    ],
-    "send_abs_values": true,
-    "send_diff_values": true,
-    "send_derived_values": true,
-    "send_total_values": true,
-    "send_bandwidths": true
   }
 ```
 
@@ -34,50 +27,24 @@ GPFS / IBM Spectrum Scale filesystems.
 
 The reported filesystems can be filtered with the `exclude_filesystem` option
 in the configuration.
-Individual metrics can be disabled for reporting using option `exclude_metrics`.
 
 The path to the `mmpmon` command can be configured with the `mmpmon_path` option
 in the configuration. If nothing is set, the collector searches in `$PATH` for `mmpmon`.
 
-If cc-metric-collector is run as non-root, password-less `sudo` can be enabled with `use_sudo`. 
-Because `mmpmon` is by default only executable as root, the Go procedure to
-search for it in `$PATH` will fail. If you use `sudo`, you must specify the
-complete path for `mmpmon` using the parameter `mmpmon_path`.
-
 
 Metrics:
-* `gpfs_bytes_read` (if `send_abs_values == true`)
+* `gpfs_bytes_read`
-* `gpfs_bytes_written` (if `send_abs_values == true`)
+* `gpfs_bytes_written`
-* `gpfs_num_opens` (if `send_abs_values == true`)
+* `gpfs_num_opens`
-* `gpfs_num_closes` (if `send_abs_values == true`)
+* `gpfs_num_closes`
-* `gpfs_num_reads` (if `send_abs_values == true`)
+* `gpfs_num_reads`
-* `gpfs_num_writes` (if `send_abs_values == true`)
+* `gpfs_num_writes`
-* `gpfs_num_readdirs` (if `send_abs_values == true`)
+* `gpfs_num_readdirs`
-* `gpfs_num_inode_updates` (if `send_abs_values == true`)
+* `gpfs_num_inode_updates`
-* `gpfs_bytes_read_diff` (if `send_diff_values == true`)
+* `gpfs_bytes_total = gpfs_bytes_read + gpfs_bytes_written` (if `send_total_values == true`)
-* `gpfs_bytes_written_diff` (if `send_diff_values == true`)
+* `gpfs_iops = gpfs_num_reads + gpfs_num_writes` (if `send_total_values == true`)
-* `gpfs_num_opens_diff` (if `send_diff_values == true`)
+* `gpfs_metaops = gpfs_num_inode_updates + gpfs_num_closes + gpfs_num_opens + gpfs_num_readdirs` (if `send_total_values == true`)
-* `gpfs_num_closes_diff` (if `send_diff_values == true`)
+* `gpfs_bw_read` (if `send_bandwidths == true`)
-* `gpfs_num_reads_diff` (if `send_diff_values == true`)
+* `gpfs_bw_write` (if `send_bandwidths == true`)
-* `gpfs_num_writes_diff` (if `send_diff_values == true`)
-* `gpfs_num_readdirs_diff` (if `send_diff_values == true`)
-* `gpfs_num_inode_updates_diff` (if `send_diff_values == true`)
-* `gpfs_bw_read` (if `send_derived_values == true` or `send_bandwidths == true`)
-* `gpfs_bw_write` (if `send_derived_values == true` or `send_bandwidths == true`)
-* `gpfs_opens_rate` (if `send_derived_values == true`)
-* `gpfs_closes_rate` (if `send_derived_values == true`)
-* `gpfs_reads_rate` (if `send_derived_values == true`)
-* `gpfs_writes_rate` (if `send_derived_values == true`)
-* `gpfs_readdirs_rate` (if `send_derived_values == true`)
-* `gpfs_inode_updates_rate` (if `send_derived_values == true`)
-* `gpfs_bytes_total = gpfs_bytes_read + gpfs_bytes_written` (if `send_total_values == true` and `send_abs_values == true`)
-* `gpfs_bytes_total_diff` (if `send_total_values == true` and `send_diff_values == true`)
-* `gpfs_bw_total` ((if `send_total_values == true` and `send_derived_values == true`) or `send_bandwidths == true`)
-* `gpfs_iops = gpfs_num_reads + gpfs_num_writes` (if `send_total_values == true` and `send_abs_values == true`)
-* `gpfs_iops_diff` (if `send_total_values == true` and `send_diff_values == true`)
-* `gpfs_iops_rate` (if `send_total_values == true` and `send_derived_values == true`)
-* `gpfs_metaops = gpfs_num_inode_updates + gpfs_num_closes + gpfs_num_opens + gpfs_num_readdirs` (if `send_total_values == true` and `send_abs_values == true`)
-* `gpfs_metaops_diff` (if `send_total_values == true` and `send_diff_values == true`)
-* `gpfs_metaops_rate` (if `send_total_values == true` and `send_derived_values == true`)
 
 The collector adds a `filesystem` tag to all metrics

collectors/infinibandMetric.go

@@ -10,10 +10,9 @@ package collectors
 import (
 	"fmt"
 	"os"
-	"slices"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 	"golang.org/x/sys/unix"
 
 	"encoding/json"
@@ -66,9 +65,7 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 
 	var err error
 	m.name = "InfinibandCollector"
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.parallel = true
 	m.meta = map[string]string{
 		"source": m.name,
@@ -90,10 +87,10 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 	globPattern := filepath.Join(IB_BASEPATH, "*", "ports", "*")
 	ibDirs, err := filepath.Glob(globPattern)
 	if err != nil {
-		return fmt.Errorf("%s Init(): unable to glob files with pattern %s: %w", m.name, globPattern, err)
+		return fmt.Errorf("unable to glob files with pattern %s: %v", globPattern, err)
 	}
 	if ibDirs == nil {
-		return fmt.Errorf("%s Init(): unable to find any directories with pattern %s", m.name, globPattern)
+		return fmt.Errorf("unable to find any directories with pattern %s", globPattern)
 	}
 
 	for _, path := range ibDirs {
@@ -114,7 +111,14 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 		port := pathSplit[6]
 
 		// Skip excluded devices
-		if slices.Contains(m.config.ExcludeDevices, device) {
+		skip := false
+		for _, excludedDevice := range m.config.ExcludeDevices {
+			if excludedDevice == device {
+				skip = true
+				break
+			}
+		}
+		if skip {
 			continue
 		}
 
@@ -157,7 +161,7 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 		for _, counter := range portCounterFiles {
 			err := unix.Access(counter.path, unix.R_OK)
 			if err != nil {
-				return fmt.Errorf("%s Init(): unable to access %s: %w", m.name, counter.path, err)
+				return fmt.Errorf("unable to access %s: %v", counter.path, err)
 			}
 		}
 
@@ -177,7 +181,7 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 	}
 
 	if len(m.info) == 0 {
-		return fmt.Errorf("%s Init(): found no IB devices", m.name)
+		return fmt.Errorf("found no IB devices")
 	}
 
 	m.init = true
@@ -237,7 +241,7 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMess
 						counterDef.name,
 						info.tagSet,
 						m.meta,
-						map[string]any{
+						map[string]interface{}{
 							"value": counterDef.currentState,
 						},
 						now); err == nil {
@@ -255,7 +259,7 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMess
 							counterDef.name+"_bw",
 							info.tagSet,
 							m.meta,
-							map[string]any{
+							map[string]interface{}{
 								"value": rate,
 							},
 							now); err == nil {
@@ -285,7 +289,7 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMess
 					"ib_total",
 					info.tagSet,
 					m.meta,
-					map[string]any{
+					map[string]interface{}{
 						"value": ib_total,
 					},
 					now); err == nil {
@@ -298,7 +302,7 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMess
 					"ib_total_pkts",
 					info.tagSet,
 					m.meta,
-					map[string]any{
+					map[string]interface{}{
 						"value": ib_total_pkts,
 					},
 					now); err == nil {

collectors/iostatMetric.go

@@ -11,26 +11,25 @@ import (
 	"bufio"
 	"encoding/json"
 	"errors"
-	"fmt"
 	"os"
-	"slices"
 	"strconv"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
+// Konstante für den Pfad zu /proc/diskstats
 const IOSTATFILE = `/proc/diskstats`
 
 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 {
-	currentValues map[string]int64
 	lastValues map[string]int64
 	tags       map[string]string
 }
@@ -47,9 +46,7 @@ func (m *IOstatCollector) Init(config json.RawMessage) error {
 	m.name = "IOstatCollector"
 	m.parallel = true
 	m.meta = map[string]string{"source": m.name, "group": "Disk"}
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	if len(config) > 0 {
 		err = json.Unmarshal(config, &m.config)
 		if err != nil {
@@ -79,7 +76,7 @@ func (m *IOstatCollector) Init(config json.RawMessage) error {
 	m.devices = make(map[string]IOstatCollectorEntry)
 	m.matches = make(map[string]int)
 	for k, v := range matches {
-		if !slices.Contains(m.config.ExcludeMetrics, k) {
+		if _, skip := stringArrayContains(m.config.ExcludeMetrics, k); !skip {
 			m.matches[k] = v
 		}
 	}
@@ -88,8 +85,10 @@ func (m *IOstatCollector) Init(config json.RawMessage) error {
 	}
 	file, err := os.Open(IOSTATFILE)
 	if err != nil {
-		return fmt.Errorf("%s Init(): Failed to open file \"%s\": %w", m.name, IOSTATFILE, err)
+		cclog.ComponentError(m.name, err.Error())
+		return err
 	}
+	defer file.Close()
 
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {
@@ -103,36 +102,21 @@ func (m *IOstatCollector) Init(config json.RawMessage) error {
 		if strings.Contains(device, "loop") {
 			continue
 		}
-		if slices.Contains(m.config.ExcludeDevices, device) {
+		if _, skip := stringArrayContains(m.config.ExcludeDevices, device); skip {
 			continue
 		}
-		currentValues := make(map[string]int64)
+		values := make(map[string]int64)
-		lastValues := make(map[string]int64)
 		for m := range m.matches {
-			currentValues[m] = 0
+			values[m] = 0
-			lastValues[m] = 0
-		}
-		for name, idx := range m.matches {
-			if idx < len(linefields) {
-				if value, err := strconv.ParseInt(linefields[idx], 0, 64); err == nil {
-					currentValues[name] = value
-					lastValues[name] = value // Set last to current for first read
-				}
-			}
 		}
 		m.devices[device] = IOstatCollectorEntry{
 			tags: map[string]string{
 				"device": device,
 				"type":   "node",
 			},
-			currentValues: currentValues,
+			lastValues: values,
-			lastValues:    lastValues,
 		}
 	}
-	if err := file.Close(); err != nil {
-		return fmt.Errorf("%s Init(): Failed to close file \"%s\": %w", m.name, IOSTATFILE, err)
-	}
-
 	m.init = true
 	return err
 }
@@ -144,18 +128,10 @@ func (m *IOstatCollector) Read(interval time.Duration, output chan lp.CCMessage)
 
 	file, err := os.Open(IOSTATFILE)
 	if err != nil {
-		cclog.ComponentError(
+		cclog.ComponentError(m.name, err.Error())
-			m.name,
-			fmt.Sprintf("Read(): Failed to open file '%s': %v", IOSTATFILE, err))
 		return
 	}
-	defer func() {
+	defer file.Close()
-		if err := file.Close(); err != nil {
-			cclog.ComponentError(
-				m.name,
-				fmt.Sprintf("Read(): Failed to close file '%s': %v", IOSTATFILE, err))
-		}
-	}()
 
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {
@@ -171,28 +147,24 @@ func (m *IOstatCollector) Read(interval time.Duration, output chan lp.CCMessage)
 		if strings.Contains(device, "loop") {
 			continue
 		}
-		if slices.Contains(m.config.ExcludeDevices, device) {
+		if _, skip := stringArrayContains(m.config.ExcludeDevices, device); skip {
 			continue
 		}
 		if _, ok := m.devices[device]; !ok {
 			continue
 		}
-		// Update current and last values
 		entry := m.devices[device]
 		for name, idx := range m.matches {
 			if idx < len(linefields) {
 				x, err := strconv.ParseInt(linefields[idx], 0, 64)
 				if err == nil {
-					// Calculate difference using previous current and new value
+					diff := x - entry.lastValues[name]
-					diff := x - entry.currentValues[name]
+					y, err := lp.NewMessage(name, entry.tags, m.meta, map[string]interface{}{"value": int(diff)}, time.Now())
-					y, err := lp.NewMetric(name, entry.tags, m.meta, int(diff), time.Now())
 					if err == nil {
 						output <- y
 					}
-					// Update last to previous current, and current to new value
-					entry.lastValues[name] = entry.currentValues[name]
-					entry.currentValues[name] = x
 				}
+				entry.lastValues[name] = x
 			}
 		}
 		m.devices[device] = entry

collectors/ipmiMetric.go

@@ -14,13 +14,14 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"log"
 	"os/exec"
 	"strconv"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 const IPMISENSORS_PATH = `ipmi-sensors`
@@ -43,9 +44,7 @@ func (m *IpmiCollector) Init(config json.RawMessage) error {
 	}
 
 	m.name = "IpmiCollector"
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.parallel = true
 	m.meta = map[string]string{
 		"source": m.name,
@@ -117,20 +116,19 @@ func (m *IpmiCollector) readIpmiTool(cmd string, output chan lp.CCMessage) {
 		}
 		v, err := strconv.ParseFloat(strings.TrimSpace(lv[1]), 64)
 		if err == nil {
-			name := strings.ToLower(strings.ReplaceAll(strings.TrimSpace(lv[0]), " ", "_"))
+			name := strings.ToLower(strings.Replace(strings.TrimSpace(lv[0]), " ", "_", -1))
 			unit := strings.TrimSpace(lv[2])
-			switch unit {
+			if unit == "Volts" {
-			case "Volts":
 				unit = "Volts"
-			case "degrees C":
+			} else if unit == "degrees C" {
 				unit = "degC"
-			case "degrees F":
+			} else if unit == "degrees F" {
 				unit = "degF"
-			case "Watts":
+			} else if unit == "Watts" {
 				unit = "Watts"
 			}
 
-			y, err := lp.NewMessage(name, map[string]string{"type": "node"}, m.meta, map[string]any{"value": v}, time.Now())
+			y, err := lp.NewMessage(name, map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": v}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", unit)
 				output <- y
@@ -152,30 +150,23 @@ func (m *IpmiCollector) readIpmiTool(cmd string, output chan lp.CCMessage) {
 
 func (m *IpmiCollector) readIpmiSensors(cmd string, output chan lp.CCMessage) {
 
-	// Setup ipmisensors command
 	command := exec.Command(cmd, "--comma-separated-output", "--sdr-cache-recreate")
-	stdout, _ := command.StdoutPipe()
+	command.Wait()
-	errBuf := new(bytes.Buffer)
+	stdout, err := command.Output()
-	command.Stderr = errBuf
+	if err != nil {
-
+		log.Print(err)
-	// start command
-	if err := command.Start(); err != nil {
-		cclog.ComponentError(
-			m.name,
-			fmt.Sprintf("readIpmiSensors(): Failed to start command \"%s\": %v", command.String(), err),
-		)
 		return
 	}
 
-	// Read command output
+	ll := strings.Split(string(stdout), "\n")
-	scanner := bufio.NewScanner(stdout)
+
-	for scanner.Scan() {
+	for _, line := range ll {
-		lv := strings.Split(scanner.Text(), ",")
+		lv := strings.Split(line, ",")
 		if len(lv) > 3 {
 			v, err := strconv.ParseFloat(lv[3], 64)
 			if err == nil {
-				name := strings.ToLower(strings.ReplaceAll(lv[1], " ", "_"))
+				name := strings.ToLower(strings.Replace(lv[1], " ", "_", -1))
-				y, err := lp.NewMessage(name, map[string]string{"type": "node"}, m.meta, map[string]any{"value": v}, time.Now())
+				y, err := lp.NewMessage(name, map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": v}, time.Now())
 				if err == nil {
 					if len(lv) > 4 {
 						y.AddMeta("unit", lv[4])
@@ -185,18 +176,6 @@ func (m *IpmiCollector) readIpmiSensors(cmd string, output chan lp.CCMessage) {
 			}
 		}
 	}
-
-	// Wait for command end
-	if err := command.Wait(); err != nil {
-		errMsg, _ := io.ReadAll(errBuf)
-		cclog.ComponentError(
-			m.name,
-			fmt.Sprintf("readIpmiSensors(): Failed to wait for the end of command \"%s\": %v\n", command.String(), err),
-		)
-		cclog.ComponentError(m.name, fmt.Sprintf("readIpmiSensors(): command stderr: \"%s\"\n", strings.TrimSpace(string(errMsg))))
-		return
-	}
-
 }
 
 func (m *IpmiCollector) Read(interval time.Duration, output chan lp.CCMessage) {

collectors/likwidMetric.go

@@ -19,12 +19,11 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"maps"
 	"math"
 	"os"
 	"os/signal"
 	"os/user"
-	"slices"
+	"sort"
 	"strconv"
 	"strings"
 	"sync"
@@ -32,8 +31,8 @@ import (
 	"time"
 	"unsafe"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 	agg "github.com/ClusterCockpit/cc-metric-collector/internal/metricAggregator"
 	topo "github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
 	"github.com/NVIDIA/go-nvml/pkg/dl"
@@ -125,14 +124,22 @@ func checkMetricType(t string) bool {
 	return ok
 }
 
+func eventsToEventStr(events map[string]string) string {
+	elist := make([]string, 0)
+	for k, v := range events {
+		elist = append(elist, fmt.Sprintf("%s:%s", v, k))
+	}
+	return strings.Join(elist, ",")
+}
+
 func genLikwidEventSet(input LikwidCollectorEventsetConfig) LikwidEventsetConfig {
-	clist := make([]string, 0, len(input.Events))
+	tmplist := make([]string, 0)
+	clist := make([]string, 0)
 	for k := range input.Events {
 		clist = append(clist, k)
 	}
-	slices.Sort(clist)
+	sort.Strings(clist)
-	tmplist := make([]string, 0, len(clist))
+	elist := make([]*C.char, 0)
-	elist := make([]*C.char, 0, len(clist))
 	for _, k := range clist {
 		v := input.Events[k]
 		tmplist = append(tmplist, fmt.Sprintf("%s:%s", v, k))
@@ -180,7 +187,7 @@ func getBaseFreq() float64 {
 	for _, f := range files {
 		buffer, err := os.ReadFile(f)
 		if err == nil {
-			data := strings.ReplaceAll(string(buffer), "\n", "")
+			data := strings.Replace(string(buffer), "\n", "", -1)
 			x, err := strconv.ParseInt(data, 0, 64)
 			if err == nil {
 				freq = float64(x)
@@ -209,7 +216,7 @@ func (m *LikwidCollector) Init(config json.RawMessage) error {
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
-			return fmt.Errorf("%s Init(): failed to unmarshal JSON config: %w", m.name, err)
+			return err
 		}
 	}
 	lib := dl.New(m.config.LibraryPath, LIKWID_LIB_DL_FLAGS)
@@ -218,18 +225,14 @@ func (m *LikwidCollector) Init(config json.RawMessage) error {
 	}
 	err := lib.Open()
 	if err != nil {
-		return fmt.Errorf("error opening %s: %w", m.config.LibraryPath, err)
+		return fmt.Errorf("error opening %s: %v", m.config.LibraryPath, err)
 	}
 
 	if m.config.ForceOverwrite {
 		cclog.ComponentDebug(m.name, "Set LIKWID_FORCE=1")
-		if err := os.Setenv("LIKWID_FORCE", "1"); err != nil {
+		os.Setenv("LIKWID_FORCE", "1")
-			return fmt.Errorf("error setting environment variable LIKWID_FORCE=1: %w", err)
-		}
-	}
-	if err := m.setup(); err != nil {
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
 	}
+	m.setup()
 
 	m.meta = map[string]string{"group": "PerfCounter"}
 	cclog.ComponentDebug(m.name, "Get cpulist and init maps and lists")
@@ -313,14 +316,7 @@ func (m *LikwidCollector) Init(config json.RawMessage) error {
 	case "accessdaemon":
 		if len(m.config.DaemonPath) > 0 {
 			p := os.Getenv("PATH")
-			if len(p) > 0 {
+			os.Setenv("PATH", m.config.DaemonPath+":"+p)
-				p = m.config.DaemonPath + ":" + p
-			} else {
-				p = m.config.DaemonPath
-			}
-			if err := os.Setenv("PATH", p); err != nil {
-				return fmt.Errorf("error setting environment variable PATH=%s: %w", p, err)
-			}
 		}
 		C.HPMmode(1)
 		retCode := C.HPMinit()
@@ -373,23 +369,16 @@ func (m *LikwidCollector) Init(config json.RawMessage) error {
 // take a measurement for 'interval' seconds of event set index 'group'
 func (m *LikwidCollector) takeMeasurement(evidx int, evset LikwidEventsetConfig, interval time.Duration) (bool, error) {
 	var ret C.int
+	var gid C.int = -1
 	sigchan := make(chan os.Signal, 1)
 
 	// Watch changes for the lock file ()
 	watcher, err := fsnotify.NewWatcher()
 	if err != nil {
-		cclog.ComponentError(
+		cclog.ComponentError(m.name, err.Error())
-			m.name,
-			fmt.Sprintf("takeMeasurement(): Failed to create a new fsnotify.Watcher: %v", err))
 		return true, err
 	}
-	defer func() {
+	defer watcher.Close()
-		if err := watcher.Close(); err != nil {
-			cclog.ComponentError(
-				m.name,
-				fmt.Sprintf("takeMeasurement(): Failed to close fsnotify.Watcher: %v", err))
-		}
-	}()
 	if len(m.config.LockfilePath) > 0 {
 		// Check if the lock file exists
 		info, err := os.Stat(m.config.LockfilePath)
@@ -397,11 +386,9 @@ func (m *LikwidCollector) takeMeasurement(evidx int, evset LikwidEventsetConfig,
 			// 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: %w", createErr)
+				return true, fmt.Errorf("failed to create lock file: %v", createErr)
-			}
-			if err := file.Close(); err != nil {
-				return true, fmt.Errorf("failed to close lock file: %w", err)
 			}
+			file.Close()
 			info, err = os.Stat(m.config.LockfilePath) // Recheck the file after creation
 		}
 		if err != nil {
@@ -453,7 +440,6 @@ func (m *LikwidCollector) takeMeasurement(evidx int, evset LikwidEventsetConfig,
 	signal.Notify(sigchan, syscall.SIGCHLD)
 
 	// Add an event string to LIKWID
-	var gid C.int
 	select {
 	case <-sigchan:
 		gid = -1
@@ -609,6 +595,7 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 				evset.metrics[tid][metric.Name] = value
 				// Now we have the result, send it with the proper tags
 				if !math.IsNaN(value) && metric.Publish {
+					fields := map[string]interface{}{"value": value}
 					y, err :=
 						lp.NewMessage(
 							metric.Name,
@@ -616,14 +603,12 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 								"type": metric.Type,
 							},
 							m.meta,
-							map[string]any{
+							fields,
-								"value": value,
-							},
 							now,
 						)
 					if err == nil {
 						if metric.Type != "node" {
-							y.AddTag("type-id", strconv.Itoa(domain))
+							y.AddTag("type-id", fmt.Sprintf("%d", domain))
 						}
 						if len(metric.Unit) > 0 {
 							y.AddMeta("unit", metric.Unit)
@@ -653,10 +638,10 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 						metric.Name,
 						map[string]string{
 							"type":    "core",
-							"type-id": strconv.Itoa(coreID),
+							"type-id": fmt.Sprintf("%d", coreID),
 						},
 						m.meta,
-						map[string]any{
+						map[string]interface{}{
 							"value": value,
 						},
 						now,
@@ -690,10 +675,10 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 						metric.Name,
 						map[string]string{
 							"type":    "socket",
-							"type-id": strconv.Itoa(socketID),
+							"type-id": fmt.Sprintf("%d", socketID),
 						},
 						m.meta,
-						map[string]any{
+						map[string]interface{}{
 							"value": value,
 						},
 						now,
@@ -727,7 +712,7 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 						"type": "node",
 					},
 					m.meta,
-					map[string]any{
+					map[string]interface{}{
 						"value": totalNodeValue,
 					},
 					now,
@@ -763,7 +748,9 @@ func (m *LikwidCollector) calcGlobalMetrics(groups []LikwidEventsetConfig, inter
 				// Here we generate parameter list
 				params := make(map[string]float64)
 				for _, evset := range groups {
-					maps.Copy(params, evset.metrics[tid])
+					for mname, mres := range evset.metrics[tid] {
+						params[mname] = mres
+					}
 				}
 				params["gotime"] = interval.Seconds()
 				// Evaluate the metric
@@ -785,14 +772,14 @@ func (m *LikwidCollector) calcGlobalMetrics(groups []LikwidEventsetConfig, inter
 									"type": metric.Type,
 								},
 								m.meta,
-								map[string]any{
+								map[string]interface{}{
 									"value": value,
 								},
 								now,
 							)
 						if err == nil {
 							if metric.Type != "node" {
-								y.AddTag("type-id", strconv.Itoa(domain))
+								y.AddTag("type-id", fmt.Sprintf("%d", domain))
 							}
 							if len(metric.Unit) > 0 {
 								y.AddMeta("unit", metric.Unit)
@@ -808,7 +795,7 @@ func (m *LikwidCollector) calcGlobalMetrics(groups []LikwidEventsetConfig, inter
 }
 
 func (m *LikwidCollector) ReadThread(interval time.Duration, output chan lp.CCMessage) {
-	var err error
+	var err error = nil
 	groups := make([]LikwidEventsetConfig, 0)
 
 	for evidx, evset := range m.config.Eventsets {
@@ -826,21 +813,13 @@ func (m *LikwidCollector) ReadThread(interval time.Duration, output chan lp.CCMe
 
 		if !skip {
 			// read measurements and derive event set metrics
-			err = m.calcEventsetMetrics(e, interval, output)
+			m.calcEventsetMetrics(e, interval, output)
-			if err != nil {
-				cclog.ComponentError(m.name, err.Error())
-				return
-			}
 			groups = append(groups, e)
 		}
 	}
 	if len(groups) > 0 {
 		// calculate global metrics
-		err = m.calcGlobalMetrics(groups, interval, output)
+		m.calcGlobalMetrics(groups, interval, output)
-		if err != nil {
-			cclog.ComponentError(m.name, err.Error())
-			return
-		}
 	}
 }
 

collectors/loadavgMetric.go

@@ -11,13 +11,12 @@ import (
 	"encoding/json"
 	"fmt"
 	"os"
-	"slices"
 	"strconv"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 // LoadavgCollector collects:
@@ -43,9 +42,7 @@ type LoadavgCollector struct {
 func (m *LoadavgCollector) Init(config json.RawMessage) error {
 	m.name = "LoadavgCollector"
 	m.parallel = true
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
@@ -67,10 +64,10 @@ func (m *LoadavgCollector) Init(config json.RawMessage) error {
 	m.proc_skips = make([]bool, len(m.proc_matches))
 
 	for i, name := range m.load_matches {
-		m.load_skips[i] = slices.Contains(m.config.ExcludeMetrics, name)
+		_, m.load_skips[i] = stringArrayContains(m.config.ExcludeMetrics, name)
 	}
 	for i, name := range m.proc_matches {
-		m.proc_skips[i] = slices.Contains(m.config.ExcludeMetrics, name)
+		_, m.proc_skips[i] = stringArrayContains(m.config.ExcludeMetrics, name)
 	}
 	m.init = true
 	return nil
@@ -102,7 +99,7 @@ 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]any{"value": x}, now)
+		y, err := lp.NewMessage(name, m.tags, m.meta, map[string]interface{}{"value": x}, now)
 		if err == nil {
 			output <- y
 		}
@@ -121,7 +118,7 @@ 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]any{"value": x}, now)
+		y, err := lp.NewMessage(name, m.tags, m.meta, map[string]interface{}{"value": x}, now)
 		if err == nil {
 			output <- y
 		}

collectors/lustreMetric.go

@@ -13,13 +13,12 @@ import (
 	"fmt"
 	"os/exec"
 	"os/user"
-	"slices"
 	"strconv"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 const LUSTRE_SYSFS = `/sys/fs/lustre`
@@ -62,6 +61,7 @@ func (m *LustreCollector) getDeviceDataCommand(device string) []string {
 	} else {
 		command = exec.Command(m.lctl, LCTL_OPTION, statsfile)
 	}
+	command.Wait()
 	stdout, _ := command.Output()
 	return strings.Split(string(stdout), "\n")
 }
@@ -302,9 +302,7 @@ func (m *LustreCollector) Init(config json.RawMessage) error {
 			return err
 		}
 	}
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.tags = map[string]string{"type": "node"}
 	m.meta = map[string]string{"source": m.name, "group": "Lustre"}
 
@@ -341,21 +339,21 @@ func (m *LustreCollector) Init(config json.RawMessage) error {
 	m.definitions = []LustreMetricDefinition{}
 	if m.config.SendAbsoluteValues {
 		for _, def := range LustreAbsMetrics {
-			if !slices.Contains(m.config.ExcludeMetrics, def.name) {
+			if _, skip := stringArrayContains(m.config.ExcludeMetrics, def.name); !skip {
 				m.definitions = append(m.definitions, def)
 			}
 		}
 	}
 	if m.config.SendDiffValues {
 		for _, def := range LustreDiffMetrics {
-			if !slices.Contains(m.config.ExcludeMetrics, def.name) {
+			if _, skip := stringArrayContains(m.config.ExcludeMetrics, def.name); !skip {
 				m.definitions = append(m.definitions, def)
 			}
 		}
 	}
 	if m.config.SendDerivedValues {
 		for _, def := range LustreDeriveMetrics {
-			if !slices.Contains(m.config.ExcludeMetrics, def.name) {
+			if _, skip := stringArrayContains(m.config.ExcludeMetrics, def.name); !skip {
 				m.definitions = append(m.definitions, def)
 			}
 		}
@@ -404,23 +402,23 @@ func (m *LustreCollector) Read(interval time.Duration, output chan lp.CCMessage)
 			} else {
 				use_x = devData[def.name]
 			}
-			var value any
+			var value interface{}
 			switch def.calc {
 			case "none":
 				value = use_x
-				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]any{"value": value}, time.Now())
+				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
 			case "difference":
 				value = use_x - devData[def.name]
 				if value.(int64) < 0 {
 					value = 0
 				}
-				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]any{"value": value}, time.Now())
+				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
 			case "derivative":
 				value = float64(use_x-devData[def.name]) / tdiff.Seconds()
 				if value.(float64) < 0 {
 					value = 0
 				}
-				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]any{"value": value}, time.Now())
+				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
 			}
 			if err == nil {
 				y.AddTag("device", device)

collectors/memstatMetric.go

@@ -15,13 +15,12 @@ import (
 	"os"
 	"path/filepath"
 	"regexp"
-	"slices"
 	"strconv"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 const MEMSTATFILE = "/proc/meminfo"
@@ -59,11 +58,7 @@ func getStats(filename string) map[string]MemstatStats {
 	if err != nil {
 		cclog.Error(err.Error())
 	}
-	defer func() {
+	defer file.Close()
-		if err := file.Close(); err != nil {
-			cclog.Error(err.Error())
-		}
-	}()
 
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {
@@ -120,20 +115,19 @@ func (m *MemstatCollector) Init(config json.RawMessage) error {
 		"MemShared":    "mem_shared",
 	}
 	for k, v := range matches {
-		if !slices.Contains(m.config.ExcludeMetrics, k) {
+		_, skip := stringArrayContains(m.config.ExcludeMetrics, k)
+		if !skip {
 			m.matches[k] = v
 		}
 	}
 	m.sendMemUsed = false
-	if !slices.Contains(m.config.ExcludeMetrics, "mem_used") {
+	if _, skip := stringArrayContains(m.config.ExcludeMetrics, "mem_used"); !skip {
 		m.sendMemUsed = true
 	}
 	if len(m.matches) == 0 {
 		return errors.New("no metrics to collect")
 	}
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 
 	if m.config.NodeStats {
 		if stats := getStats(MEMSTATFILE); len(stats) == 0 {
@@ -159,7 +153,7 @@ func (m *MemstatCollector) Init(config json.RawMessage) error {
 							file: f,
 							tags: map[string]string{
 								"type":    "memoryDomain",
-								"type-id": strconv.Itoa(id),
+								"type-id": fmt.Sprintf("%d", id),
 							},
 						}
 						m.nodefiles[id] = f
@@ -180,7 +174,7 @@ func (m *MemstatCollector) Read(interval time.Duration, output chan lp.CCMessage
 	sendStats := func(stats map[string]MemstatStats, tags map[string]string) {
 		for match, name := range m.matches {
 			var value float64 = 0
-			unit := ""
+			var unit string = ""
 			if v, ok := stats[match]; ok {
 				value = v.value
 				if len(v.unit) > 0 {
@@ -188,7 +182,7 @@ func (m *MemstatCollector) Read(interval time.Duration, output chan lp.CCMessage
 				}
 			}
 
-			y, err := lp.NewMessage(name, tags, m.meta, map[string]any{"value": value}, time.Now())
+			y, err := lp.NewMessage(name, tags, m.meta, map[string]interface{}{"value": value}, time.Now())
 			if err == nil {
 				if len(unit) > 0 {
 					y.AddMeta("unit", unit)
@@ -221,7 +215,7 @@ func (m *MemstatCollector) Read(interval time.Duration, output chan lp.CCMessage
 					}
 				}
 			}
-			y, err := lp.NewMessage("mem_used", tags, m.meta, map[string]any{"value": memUsed}, time.Now())
+			y, err := lp.NewMessage("mem_used", tags, m.meta, map[string]interface{}{"value": memUsed}, time.Now())
 			if err == nil {
 				if len(unit) > 0 {
 					y.AddMeta("unit", unit)

collectors/metricCollector.go

@@ -12,7 +12,7 @@ import (
 	"fmt"
 	"time"
 
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 type MetricCollector interface {
@@ -51,6 +51,30 @@ func (c *metricCollector) Initialized() bool {
 	return c.init
 }
 
+// intArrayContains scans an array of ints if the value str is present in the array
+// If the specified value is found, the corresponding array index is returned.
+// The bool value is used to signal success or failure
+func intArrayContains(array []int, str int) (int, bool) {
+	for i, a := range array {
+		if a == str {
+			return i, true
+		}
+	}
+	return -1, false
+}
+
+// stringArrayContains scans an array of strings if the value str is present in the array
+// If the specified value is found, the corresponding array index is returned.
+// The bool value is used to signal success or failure
+func stringArrayContains(array []string, str string) (int, bool) {
+	for i, a := range array {
+		if a == str {
+			return i, true
+		}
+	}
+	return -1, false
+}
+
 // RemoveFromStringList removes the string r from the array of strings s
 // If r is not contained in the array an error is returned
 func RemoveFromStringList(s []string, r string) ([]string, error) {

collectors/netstatMetric.go

@@ -10,15 +10,14 @@ package collectors
 import (
 	"bufio"
 	"encoding/json"
-	"fmt"
+	"errors"
 	"os"
-	"slices"
 	"strconv"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 const NETSTATFILE = "/proc/net/dev"
@@ -66,9 +65,7 @@ func getCanonicalName(raw string, aliasToCanonical map[string]string) string {
 func (m *NetstatCollector) Init(config json.RawMessage) error {
 	m.name = "NetstatCollector"
 	m.parallel = true
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.lastTimestamp = time.Now()
 
 	const (
@@ -110,8 +107,10 @@ func (m *NetstatCollector) Init(config json.RawMessage) error {
 	// Check access to net statistic file
 	file, err := os.Open(NETSTATFILE)
 	if err != nil {
-		return fmt.Errorf("%s Init(): failed to open netstat file \"%s\": %w", m.name, NETSTATFILE, err)
+		cclog.ComponentError(m.name, err.Error())
+		return err
 	}
+	defer file.Close()
 
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {
@@ -130,7 +129,7 @@ func (m *NetstatCollector) Init(config json.RawMessage) error {
 		canonical := getCanonicalName(raw, m.aliasToCanonical)
 
 		// Check if device is a included device
-		if slices.Contains(m.config.IncludeDevices, canonical) {
+		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"}
 			meta_unit_byte := map[string]string{"source": m.name, "group": "Network", "unit": "bytes"}
@@ -175,13 +174,8 @@ func (m *NetstatCollector) Init(config json.RawMessage) error {
 		}
 	}
 
-	// Close netstat file
-	if err := file.Close(); err != nil {
-		return fmt.Errorf("%s Init(): failed to close netstat file \"%s\": %w", m.name, NETSTATFILE, err)
-	}
-
 	if len(m.matches) == 0 {
-		return fmt.Errorf("%s Init(): no devices to collect metrics found", m.name)
+		return errors.New("no devices to collector metrics found")
 	}
 	m.init = true
 	return nil
@@ -200,18 +194,10 @@ func (m *NetstatCollector) Read(interval time.Duration, output chan lp.CCMessage
 
 	file, err := os.Open(NETSTATFILE)
 	if err != nil {
-		cclog.ComponentError(
+		cclog.ComponentError(m.name, err.Error())
-			m.name,
-			fmt.Sprintf("Read(): Failed to open file '%s': %v", NETSTATFILE, err))
 		return
 	}
-	defer func() {
+	defer file.Close()
-		if err := file.Close(); err != nil {
-			cclog.ComponentError(
-				m.name,
-				fmt.Sprintf("Read(): Failed to close file '%s': %v", NETSTATFILE, err))
-		}
-	}()
 
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {
@@ -240,14 +226,14 @@ 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]any{"value": v}, now); err == nil {
+					if y, err := lp.NewMessage(metric.name, metric.tags, metric.meta, map[string]interface{}{"value": v}, now); err == nil {
 						output <- y
 					}
 				}
 				if m.config.SendDerivedValues {
 					if metric.lastValue >= 0 {
 						rate := float64(v-metric.lastValue) / timeDiff
-						if y, err := lp.NewMessage(metric.name+"_bw", metric.tags, metric.meta_rates, map[string]any{"value": rate}, now); err == nil {
+						if y, err := lp.NewMessage(metric.name+"_bw", metric.tags, metric.meta_rates, map[string]interface{}{"value": rate}, now); err == nil {
 							output <- y
 						}
 					}

collectors/nfsMetric.go

@@ -10,7 +10,7 @@ package collectors
 import (
 	"encoding/json"
 	"fmt"
-	"slices"
+	"log"
 
 	//	"os"
 	"os/exec"
@@ -18,8 +18,7 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
 )
 
 // First part contains the code for the general NfsCollector.
@@ -45,15 +44,10 @@ type nfsCollector struct {
 
 func (m *nfsCollector) initStats() error {
 	cmd := exec.Command(m.config.Nfsstats, `-l`, `--all`)
-
+	cmd.Wait()
-	// Wait for cmd end
-	if err := cmd.Wait(); err != nil {
-		return fmt.Errorf("%s initStats(): %w", m.name, err)
-	}
-
 	buffer, err := cmd.Output()
 	if err == nil {
-		for line := range strings.Lines(string(buffer)) {
+		for _, line := range strings.Split(string(buffer), "\n") {
 			lf := strings.Fields(line)
 			if len(lf) != 5 {
 				continue
@@ -77,15 +71,10 @@ func (m *nfsCollector) initStats() error {
 
 func (m *nfsCollector) updateStats() error {
 	cmd := exec.Command(m.config.Nfsstats, `-l`, `--all`)
-
+	cmd.Wait()
-	// Wait for cmd end
-	if err := cmd.Wait(); err != nil {
-		return fmt.Errorf("%s updateStats(): %w", m.name, err)
-	}
-
 	buffer, err := cmd.Output()
 	if err == nil {
-		for line := range strings.Lines(string(buffer)) {
+		for _, line := range strings.Split(string(buffer), "\n") {
 			lf := strings.Fields(line)
 			if len(lf) != 5 {
 				continue
@@ -113,7 +102,8 @@ func (m *nfsCollector) MainInit(config json.RawMessage) error {
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
-			return fmt.Errorf("%s Init(): failed to unmarshal JSON config: %w", m.name, err)
+			log.Print(err.Error())
+			return err
 		}
 	}
 	m.meta = map[string]string{
@@ -126,12 +116,10 @@ func (m *nfsCollector) MainInit(config json.RawMessage) error {
 	// Check if nfsstat is in executable search path
 	_, err := exec.LookPath(m.config.Nfsstats)
 	if err != nil {
-		return fmt.Errorf("%s Init(): Failed to find nfsstat binary '%s': %w", m.name, m.config.Nfsstats, err)
+		return fmt.Errorf("NfsCollector.Init(): Failed to find nfsstat binary '%s': %v", m.config.Nfsstats, err)
 	}
 	m.data = make(map[string]NfsCollectorData)
-	if err := m.initStats(); err != nil {
+	m.initStats()
-		return fmt.Errorf("%s Init(): %w", m.name, err)
-	}
 	m.init = true
 	m.parallel = true
 	return nil
@@ -143,14 +131,8 @@ func (m *nfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 	}
 	timestamp := time.Now()
 
-	if err := m.updateStats(); err != nil {
+	m.updateStats()
-		cclog.ComponentError(
+	prefix := ""
-			m.name,
-			fmt.Sprintf("Read(): updateStats() failed: %v", err),
-		)
-		return
-	}
-	var prefix string
 	switch m.version {
 	case "v3":
 		prefix = "nfs3"
@@ -161,11 +143,11 @@ func (m *nfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 	}
 
 	for name, data := range m.data {
-		if slices.Contains(m.config.ExcludeMetrics, name) {
+		if _, skip := stringArrayContains(m.config.ExcludeMetrics, name); skip {
 			continue
 		}
 		value := data.current - data.last
-		y, err := lp.NewMessage(fmt.Sprintf("%s_%s", prefix, name), m.tags, m.meta, map[string]any{"value": value}, timestamp)
+		y, err := lp.NewMessage(fmt.Sprintf("%s_%s", prefix, name), m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
 		if err == nil {
 			y.AddMeta("version", m.version)
 			output <- y
@@ -188,17 +170,13 @@ type Nfs4Collector struct {
 func (m *Nfs3Collector) Init(config json.RawMessage) error {
 	m.name = "Nfs3Collector"
 	m.version = `v3`
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	return m.MainInit(config)
 }
 
 func (m *Nfs4Collector) Init(config json.RawMessage) error {
 	m.name = "Nfs4Collector"
 	m.version = `v4`
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	return m.MainInit(config)
 }

collectors/nfsiostatMetric.go

@@ -12,13 +12,12 @@ import (
 	"fmt"
 	"os"
 	"regexp"
-	"slices"
 	"strconv"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 // These are the fields we read from the JSON configuration
@@ -72,7 +71,7 @@ func (m *NfsIOStatCollector) readNfsiostats() map[string]map[string]int64 {
 		// Is this a device line with mount point, remote target and NFS version?
 		dev := resolve_regex_fields(l, deviceRegex)
 		if len(dev) > 0 {
-			if !slices.Contains(m.config.ExcludeFilesystem, dev[m.key]) {
+			if _, ok := stringArrayContains(m.config.ExcludeFilesystem, dev[m.key]); !ok {
 				current = dev
 				if len(current["version"]) == 0 {
 					current["version"] = "3"
@@ -86,7 +85,7 @@ func (m *NfsIOStatCollector) readNfsiostats() map[string]map[string]int64 {
 			if len(bytes) > 0 {
 				data[current[m.key]] = make(map[string]int64)
 				for name, sval := range bytes {
-					if !slices.Contains(m.config.ExcludeMetrics, name) {
+					if _, ok := stringArrayContains(m.config.ExcludeMetrics, name); !ok {
 						val, err := strconv.ParseInt(sval, 10, 64)
 						if err == nil {
 							data[current[m.key]][name] = val
@@ -103,9 +102,7 @@ func (m *NfsIOStatCollector) readNfsiostats() map[string]map[string]int64 {
 func (m *NfsIOStatCollector) Init(config json.RawMessage) error {
 	var err error = nil
 	m.name = "NfsIOStatCollector"
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.parallel = true
 	m.meta = map[string]string{"source": m.name, "group": "NFS", "unit": "bytes"}
 	m.tags = map[string]string{"type": "node"}
@@ -143,13 +140,7 @@ func (m *NfsIOStatCollector) Read(interval time.Duration, output chan lp.CCMessa
 		if old, ok := m.data[mntpoint]; ok {
 			for name, newVal := range values {
 				if m.config.SendAbsoluteValues {
-					msg, err := lp.NewMessage(
+					msg, err := lp.NewMessage(fmt.Sprintf("nfsio_%s", name), m.tags, m.meta, map[string]interface{}{"value": newVal}, now)
-						"nfsio_"+name,
-						m.tags,
-						m.meta,
-						map[string]any{
-							"value": newVal},
-						now)
 					if err == nil {
 						msg.AddTag("stype", "filesystem")
 						msg.AddTag("stype-id", mntpoint)
@@ -158,7 +149,7 @@ func (m *NfsIOStatCollector) Read(interval time.Duration, output chan lp.CCMessa
 				}
 				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]any{"value": rate}, now)
+					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")

collectors/numastatsMetric.go

@@ -10,8 +10,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 type NUMAStatsCollectorConfig struct {
@@ -72,9 +72,7 @@ func (m *NUMAStatsCollector) Init(config json.RawMessage) error {
 
 	m.name = "NUMAStatsCollector"
 	m.parallel = true
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.meta = map[string]string{
 		"source": m.name,
 		"group":  "NUMA",
@@ -84,7 +82,7 @@ func (m *NUMAStatsCollector) Init(config json.RawMessage) error {
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
-			return fmt.Errorf("%s Init(): unable to unmarshal numastat configuration: %w", m.name, err)
+			return fmt.Errorf("unable to unmarshal numastat configuration: %s", err.Error())
 		}
 	}
 
@@ -93,10 +91,10 @@ func (m *NUMAStatsCollector) Init(config json.RawMessage) error {
 	globPattern := base + "[0-9]*"
 	dirs, err := filepath.Glob(globPattern)
 	if err != nil {
-		return fmt.Errorf("%s Init(): unable to glob files with pattern '%s'", m.name, globPattern)
+		return fmt.Errorf("unable to glob files with pattern '%s'", globPattern)
 	}
 	if dirs == nil {
-		return fmt.Errorf("%s Init(): unable to find any files with pattern '%s'", m.name, globPattern)
+		return fmt.Errorf("unable to find any files with pattern '%s'", globPattern)
 	}
 	m.topology = make([]NUMAStatsCollectorTopolgy, 0, len(dirs))
 	for _, dir := range dirs {
@@ -105,10 +103,7 @@ func (m *NUMAStatsCollector) Init(config json.RawMessage) error {
 		m.topology = append(m.topology,
 			NUMAStatsCollectorTopolgy{
 				file:           file,
-				tagSet: map[string]string{
+				tagSet:         map[string]string{"memoryDomain": node},
-					"type":    "memoryDomain",
-					"type-id": node,
-				},
 				previousValues: make(map[string]int64),
 			})
 	}
@@ -188,11 +183,7 @@ func (m *NUMAStatsCollector) Read(interval time.Duration, output chan lp.CCMessa
 				t.previousValues[key] = value
 			}
 		}
-		if err := file.Close(); err != nil {
+		file.Close()
-			cclog.ComponentError(
-				m.name,
-				fmt.Sprintf("Read(): Failed to close file '%s': %v", t.file, err))
-		}
 	}
 }
 

collectors/nvidiaMetric.go

@@ -12,14 +12,11 @@ import (
 	"errors"
 	"fmt"
 	"log"
-	"maps"
-	"slices"
-	"strconv"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 	"github.com/NVIDIA/go-nvml/pkg/nvml"
 )
 
@@ -67,9 +64,7 @@ func (m *NvidiaCollector) Init(config json.RawMessage) error {
 	m.config.ProcessMigDevices = false
 	m.config.UseUuidForMigDevices = false
 	m.config.UseSliceForMigDevices = false
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	if len(config) > 0 {
 		err = json.Unmarshal(config, &m.config)
 		if err != nil {
@@ -110,11 +105,11 @@ func (m *NvidiaCollector) Init(config json.RawMessage) error {
 	// For all GPUs
 	idx := 0
 	m.gpus = make([]NvidiaCollectorDevice, num_gpus)
-	for i := range num_gpus {
+	for i := 0; i < num_gpus; i++ {
 
 		// Skip excluded devices by ID
-		str_i := strconv.Itoa(i)
+		str_i := fmt.Sprintf("%d", i)
-		if slices.Contains(m.config.ExcludeDevices, str_i) {
+		if _, skip := stringArrayContains(m.config.ExcludeDevices, str_i); skip {
 			cclog.ComponentDebug(m.name, "Skipping excluded device", str_i)
 			continue
 		}
@@ -142,7 +137,7 @@ func (m *NvidiaCollector) Init(config json.RawMessage) error {
 			pciInfo.Device)
 
 		// Skip excluded devices specified by PCI ID
-		if slices.Contains(m.config.ExcludeDevices, pci_id) {
+		if _, skip := stringArrayContains(m.config.ExcludeDevices, pci_id); skip {
 			cclog.ComponentDebug(m.name, "Skipping excluded device", pci_id)
 			continue
 		}
@@ -227,20 +222,18 @@ func readMemoryInfo(device *NvidiaCollectorDevice, output chan lp.CCMessage) err
 		var total uint64
 		var used uint64
 		var reserved uint64 = 0
-		v2 := false
+		var v2 bool = false
 		meminfo, ret := nvml.DeviceGetMemoryInfo(device.device)
 		if ret != nvml.SUCCESS {
 			err := errors.New(nvml.ErrorString(ret))
 			return err
 		}
-		// Total physical device memory (in bytes)
 		total = meminfo.Total
-		// Sum of Reserved and Allocated device memory (in bytes)
 		used = meminfo.Used
 
 		if !device.excludeMetrics["nv_fb_mem_total"] {
 			t := float64(total) / (1024 * 1024)
-			y, err := lp.NewMetric("nv_fb_mem_total", device.tags, device.meta, t, time.Now())
+			y, err := lp.NewMessage("nv_fb_mem_total", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MByte")
 				output <- y
@@ -249,7 +242,7 @@ func readMemoryInfo(device *NvidiaCollectorDevice, output chan lp.CCMessage) err
 
 		if !device.excludeMetrics["nv_fb_mem_used"] {
 			f := float64(used) / (1024 * 1024)
-			y, err := lp.NewMetric("nv_fb_mem_used", device.tags, device.meta, f, time.Now())
+			y, err := lp.NewMessage("nv_fb_mem_used", device.tags, device.meta, map[string]interface{}{"value": f}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MByte")
 				output <- y
@@ -258,7 +251,7 @@ func readMemoryInfo(device *NvidiaCollectorDevice, output chan lp.CCMessage) err
 
 		if v2 && !device.excludeMetrics["nv_fb_mem_reserved"] {
 			r := float64(reserved) / (1024 * 1024)
-			y, err := lp.NewMetric("nv_fb_mem_reserved", device.tags, device.meta, r, time.Now())
+			y, err := lp.NewMessage("nv_fb_mem_reserved", device.tags, device.meta, map[string]interface{}{"value": r}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MByte")
 				output <- y
@@ -277,7 +270,7 @@ func readBarMemoryInfo(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		}
 		if !device.excludeMetrics["nv_bar1_mem_total"] {
 			t := float64(meminfo.Bar1Total) / (1024 * 1024)
-			y, err := lp.NewMetric("nv_bar1_mem_total", device.tags, device.meta, t, time.Now())
+			y, err := lp.NewMessage("nv_bar1_mem_total", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MByte")
 				output <- y
@@ -285,7 +278,7 @@ func readBarMemoryInfo(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		}
 		if !device.excludeMetrics["nv_bar1_mem_used"] {
 			t := float64(meminfo.Bar1Used) / (1024 * 1024)
-			y, err := lp.NewMetric("nv_bar1_mem_used", device.tags, device.meta, t, time.Now())
+			y, err := lp.NewMessage("nv_bar1_mem_used", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MByte")
 				output <- y
@@ -319,14 +312,14 @@ func readUtilization(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 		util, ret := nvml.DeviceGetUtilizationRates(device.device)
 		if ret == nvml.SUCCESS {
 			if !device.excludeMetrics["nv_util"] {
-				y, err := lp.NewMetric("nv_util", device.tags, device.meta, float64(util.Gpu), time.Now())
+				y, err := lp.NewMessage("nv_util", device.tags, device.meta, map[string]interface{}{"value": float64(util.Gpu)}, time.Now())
 				if err == nil {
 					y.AddMeta("unit", "%")
 					output <- y
 				}
 			}
 			if !device.excludeMetrics["nv_mem_util"] {
-				y, err := lp.NewMetric("nv_mem_util", device.tags, device.meta, float64(util.Memory), time.Now())
+				y, err := lp.NewMessage("nv_mem_util", device.tags, device.meta, map[string]interface{}{"value": float64(util.Memory)}, time.Now())
 				if err == nil {
 					y.AddMeta("unit", "%")
 					output <- y
@@ -346,7 +339,7 @@ func readTemp(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 		// * NVML_TEMPERATURE_COUNT
 		temp, ret := nvml.DeviceGetTemperature(device.device, nvml.TEMPERATURE_GPU)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_temp", device.tags, device.meta, float64(temp), time.Now())
+			y, err := lp.NewMessage("nv_temp", device.tags, device.meta, map[string]interface{}{"value": float64(temp)}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "degC")
 				output <- y
@@ -369,7 +362,7 @@ func readFan(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 		// This value may exceed 100% in certain cases.
 		fan, ret := nvml.DeviceGetFanSpeed(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_fan", device.tags, device.meta, float64(fan), time.Now())
+			y, err := lp.NewMessage("nv_fan", device.tags, device.meta, map[string]interface{}{"value": float64(fan)}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "%")
 				output <- y
@@ -379,6 +372,27 @@ func readFan(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 	return nil
 }
 
+// func readFans(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
+// 	if !device.excludeMetrics["nv_fan"] {
+// 		numFans, ret := nvml.DeviceGetNumFans(device.device)
+// 		if ret == nvml.SUCCESS {
+// 			for i := 0; i < numFans; i++ {
+// 				fan, ret := nvml.DeviceGetFanSpeed_v2(device.device, i)
+// 				if ret == nvml.SUCCESS {
+// 					y, err := lp.NewMessage("nv_fan", device.tags, device.meta, map[string]interface{}{"value": float64(fan)}, time.Now())
+// 					if err == nil {
+// 						y.AddMeta("unit", "%")
+// 						y.AddTag("stype", "fan")
+// 						y.AddTag("stype-id", fmt.Sprintf("%d", i))
+// 						output <- y
+// 					}
+// 				}
+// 			}
+// 		}
+// 	}
+// 	return nil
+// }
+
 func readEccMode(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 	if !device.excludeMetrics["nv_ecc_mode"] {
 		// Retrieves the current and pending ECC modes for the device.
@@ -389,23 +403,22 @@ func readEccMode(device *NvidiaCollectorDevice, output chan lp.CCMessage) error
 		// Changing ECC modes requires a reboot.
 		// The "pending" ECC mode refers to the target mode following the next reboot.
 		_, ecc_pend, ret := nvml.DeviceGetEccMode(device.device)
-		switch ret {
+		if ret == nvml.SUCCESS {
-		case nvml.SUCCESS:
 			var y lp.CCMessage
 			var err error
 			switch ecc_pend {
 			case nvml.FEATURE_DISABLED:
-				y, err = lp.NewMetric("nv_ecc_mode", device.tags, device.meta, "OFF", time.Now())
+				y, err = lp.NewMessage("nv_ecc_mode", device.tags, device.meta, map[string]interface{}{"value": "OFF"}, time.Now())
 			case nvml.FEATURE_ENABLED:
-				y, err = lp.NewMetric("nv_ecc_mode", device.tags, device.meta, "ON", time.Now())
+				y, err = lp.NewMessage("nv_ecc_mode", device.tags, device.meta, map[string]interface{}{"value": "ON"}, time.Now())
 			default:
-				y, err = lp.NewMetric("nv_ecc_mode", device.tags, device.meta, "UNKNOWN", time.Now())
+				y, err = lp.NewMessage("nv_ecc_mode", device.tags, device.meta, map[string]interface{}{"value": "UNKNOWN"}, time.Now())
 			}
 			if err == nil {
 				output <- y
 			}
-		case nvml.ERROR_NOT_SUPPORTED:
+		} else if ret == nvml.ERROR_NOT_SUPPORTED {
-			y, err := lp.NewMetric("nv_ecc_mode", device.tags, device.meta, "N/A", time.Now())
+			y, err := lp.NewMessage("nv_ecc_mode", device.tags, device.meta, map[string]interface{}{"value": "N/A"}, time.Now())
 			if err == nil {
 				output <- y
 			}
@@ -425,7 +438,7 @@ func readPerfState(device *NvidiaCollectorDevice, output chan lp.CCMessage) erro
 		// 32: Unknown performance state.
 		pState, ret := nvml.DeviceGetPerformanceState(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_perf_state", device.tags, device.meta, fmt.Sprintf("P%d", int(pState)), time.Now())
+			y, err := lp.NewMessage("nv_perf_state", device.tags, device.meta, map[string]interface{}{"value": fmt.Sprintf("P%d", int(pState))}, time.Now())
 			if err == nil {
 				output <- y
 			}
@@ -451,7 +464,7 @@ func readPowerUsage(device *NvidiaCollectorDevice, output chan lp.CCMessage) err
 		if mode == nvml.FEATURE_ENABLED {
 			power, ret := nvml.DeviceGetPowerUsage(device.device)
 			if ret == nvml.SUCCESS {
-				y, err := lp.NewMetric("nv_power_usage", device.tags, device.meta, float64(power)/1000, time.Now())
+				y, err := lp.NewMessage("nv_power_usage", device.tags, device.meta, map[string]interface{}{"value": float64(power) / 1000}, time.Now())
 				if err == nil {
 					y.AddMeta("unit", "watts")
 					output <- y
@@ -477,12 +490,7 @@ func readEnergyConsumption(device *NvidiaCollectorDevice, output chan lp.CCMessa
 			if ret == nvml.SUCCESS {
 				if device.lastEnergyReading != 0 {
 					if !device.excludeMetrics["nv_energy"] {
-						y, err := lp.NewMetric(
+						y, err := lp.NewMetric("nv_energy", device.tags, device.meta, (energy-device.lastEnergyReading)/1000, now)
-							"nv_energy",
-							device.tags,
-							device.meta,
-							(energy-device.lastEnergyReading)/1000,
-							now)
 						if err == nil {
 							y.AddMeta("unit", "Joules")
 							output <- y
@@ -524,7 +532,7 @@ func readClocks(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 	if !device.excludeMetrics["nv_graphics_clock"] {
 		graphicsClock, ret := nvml.DeviceGetClockInfo(device.device, nvml.CLOCK_GRAPHICS)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_graphics_clock", device.tags, device.meta, float64(graphicsClock), time.Now())
+			y, err := lp.NewMessage("nv_graphics_clock", device.tags, device.meta, map[string]interface{}{"value": float64(graphicsClock)}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MHz")
 				output <- y
@@ -535,7 +543,7 @@ func readClocks(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 	if !device.excludeMetrics["nv_sm_clock"] {
 		smCock, ret := nvml.DeviceGetClockInfo(device.device, nvml.CLOCK_SM)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_sm_clock", device.tags, device.meta, float64(smCock), time.Now())
+			y, err := lp.NewMessage("nv_sm_clock", device.tags, device.meta, map[string]interface{}{"value": float64(smCock)}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MHz")
 				output <- y
@@ -546,7 +554,7 @@ func readClocks(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 	if !device.excludeMetrics["nv_mem_clock"] {
 		memClock, ret := nvml.DeviceGetClockInfo(device.device, nvml.CLOCK_MEM)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_mem_clock", device.tags, device.meta, float64(memClock), time.Now())
+			y, err := lp.NewMessage("nv_mem_clock", device.tags, device.meta, map[string]interface{}{"value": float64(memClock)}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MHz")
 				output <- y
@@ -556,7 +564,7 @@ func readClocks(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 	if !device.excludeMetrics["nv_video_clock"] {
 		memClock, ret := nvml.DeviceGetClockInfo(device.device, nvml.CLOCK_VIDEO)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_video_clock", device.tags, device.meta, float64(memClock), time.Now())
+			y, err := lp.NewMessage("nv_video_clock", device.tags, device.meta, map[string]interface{}{"value": float64(memClock)}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MHz")
 				output <- y
@@ -581,7 +589,7 @@ func readMaxClocks(device *NvidiaCollectorDevice, output chan lp.CCMessage) erro
 	if !device.excludeMetrics["nv_max_graphics_clock"] {
 		max_gclk, ret := nvml.DeviceGetMaxClockInfo(device.device, nvml.CLOCK_GRAPHICS)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_max_graphics_clock", device.tags, device.meta, float64(max_gclk), time.Now())
+			y, err := lp.NewMessage("nv_max_graphics_clock", device.tags, device.meta, map[string]interface{}{"value": float64(max_gclk)}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MHz")
 				output <- y
@@ -590,9 +598,9 @@ func readMaxClocks(device *NvidiaCollectorDevice, output chan lp.CCMessage) erro
 	}
 
 	if !device.excludeMetrics["nv_max_sm_clock"] {
-		maxSmClock, ret := nvml.DeviceGetMaxClockInfo(device.device, nvml.CLOCK_SM)
+		maxSmClock, ret := nvml.DeviceGetClockInfo(device.device, nvml.CLOCK_SM)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_max_sm_clock", device.tags, device.meta, float64(maxSmClock), time.Now())
+			y, err := lp.NewMessage("nv_max_sm_clock", device.tags, device.meta, map[string]interface{}{"value": float64(maxSmClock)}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MHz")
 				output <- y
@@ -601,9 +609,9 @@ func readMaxClocks(device *NvidiaCollectorDevice, output chan lp.CCMessage) erro
 	}
 
 	if !device.excludeMetrics["nv_max_mem_clock"] {
-		maxMemClock, ret := nvml.DeviceGetMaxClockInfo(device.device, nvml.CLOCK_MEM)
+		maxMemClock, ret := nvml.DeviceGetClockInfo(device.device, nvml.CLOCK_MEM)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_max_mem_clock", device.tags, device.meta, float64(maxMemClock), time.Now())
+			y, err := lp.NewMessage("nv_max_mem_clock", device.tags, device.meta, map[string]interface{}{"value": float64(maxMemClock)}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MHz")
 				output <- y
@@ -612,9 +620,9 @@ func readMaxClocks(device *NvidiaCollectorDevice, output chan lp.CCMessage) erro
 	}
 
 	if !device.excludeMetrics["nv_max_video_clock"] {
-		maxVideoClock, ret := nvml.DeviceGetMaxClockInfo(device.device, nvml.CLOCK_VIDEO)
+		maxMemClock, ret := nvml.DeviceGetClockInfo(device.device, nvml.CLOCK_VIDEO)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_max_video_clock", device.tags, device.meta, float64(maxVideoClock), time.Now())
+			y, err := lp.NewMessage("nv_max_video_clock", device.tags, device.meta, map[string]interface{}{"value": float64(maxMemClock)}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MHz")
 				output <- y
@@ -637,7 +645,7 @@ func readEccErrors(device *NvidiaCollectorDevice, output chan lp.CCMessage) erro
 		// i.e. the total set of errors across the entire device.
 		ecc_db, ret := nvml.DeviceGetTotalEccErrors(device.device, nvml.MEMORY_ERROR_TYPE_UNCORRECTED, nvml.AGGREGATE_ECC)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_ecc_uncorrected_error", device.tags, device.meta, float64(ecc_db), time.Now())
+			y, err := lp.NewMessage("nv_ecc_uncorrected_error", device.tags, device.meta, map[string]interface{}{"value": float64(ecc_db)}, time.Now())
 			if err == nil {
 				output <- y
 			}
@@ -646,7 +654,7 @@ func readEccErrors(device *NvidiaCollectorDevice, output chan lp.CCMessage) erro
 	if !device.excludeMetrics["nv_ecc_corrected_error"] {
 		ecc_sb, ret := nvml.DeviceGetTotalEccErrors(device.device, nvml.MEMORY_ERROR_TYPE_CORRECTED, nvml.AGGREGATE_ECC)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_ecc_corrected_error", device.tags, device.meta, float64(ecc_sb), time.Now())
+			y, err := lp.NewMessage("nv_ecc_corrected_error", device.tags, device.meta, map[string]interface{}{"value": float64(ecc_sb)}, time.Now())
 			if err == nil {
 				output <- y
 			}
@@ -665,7 +673,7 @@ func readPowerLimit(device *NvidiaCollectorDevice, output chan lp.CCMessage) err
 		// If the card's total power draw reaches this limit the power management algorithm kicks in.
 		pwr_limit, ret := nvml.DeviceGetPowerManagementLimit(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_power_max_limit", device.tags, device.meta, float64(pwr_limit)/1000, time.Now())
+			y, err := lp.NewMessage("nv_power_max_limit", device.tags, device.meta, map[string]interface{}{"value": float64(pwr_limit) / 1000}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "watts")
 				output <- y
@@ -692,7 +700,7 @@ func readEncUtilization(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		// Note: On MIG-enabled GPUs, querying encoder utilization is not currently supported.
 		enc_util, _, ret := nvml.DeviceGetEncoderUtilization(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_encoder_util", device.tags, device.meta, float64(enc_util), time.Now())
+			y, err := lp.NewMessage("nv_encoder_util", device.tags, device.meta, map[string]interface{}{"value": float64(enc_util)}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "%")
 				output <- y
@@ -719,7 +727,7 @@ func readDecUtilization(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		// Note: On MIG-enabled GPUs, querying encoder utilization is not currently supported.
 		dec_util, _, ret := nvml.DeviceGetDecoderUtilization(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_decoder_util", device.tags, device.meta, float64(dec_util), time.Now())
+			y, err := lp.NewMessage("nv_decoder_util", device.tags, device.meta, map[string]interface{}{"value": float64(dec_util)}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "%")
 				output <- y
@@ -746,33 +754,33 @@ func readRemappedRows(device *NvidiaCollectorDevice, output chan lp.CCMessage) e
 		corrected, uncorrected, pending, failure, ret := nvml.DeviceGetRemappedRows(device.device)
 		if ret == nvml.SUCCESS {
 			if !device.excludeMetrics["nv_remapped_rows_corrected"] {
-				y, err := lp.NewMetric("nv_remapped_rows_corrected", device.tags, device.meta, float64(corrected), time.Now())
+				y, err := lp.NewMessage("nv_remapped_rows_corrected", device.tags, device.meta, map[string]interface{}{"value": float64(corrected)}, time.Now())
 				if err == nil {
 					output <- y
 				}
 			}
 			if !device.excludeMetrics["nv_remapped_rows_uncorrected"] {
-				y, err := lp.NewMetric("nv_remapped_rows_corrected", device.tags, device.meta, float64(uncorrected), time.Now())
+				y, err := lp.NewMessage("nv_remapped_rows_corrected", device.tags, device.meta, map[string]interface{}{"value": float64(uncorrected)}, time.Now())
 				if err == nil {
 					output <- y
 				}
 			}
 			if !device.excludeMetrics["nv_remapped_rows_pending"] {
-				p := 0
+				var p int = 0
 				if pending {
 					p = 1
 				}
-				y, err := lp.NewMetric("nv_remapped_rows_pending", device.tags, device.meta, p, time.Now())
+				y, err := lp.NewMessage("nv_remapped_rows_pending", device.tags, device.meta, map[string]interface{}{"value": p}, time.Now())
 				if err == nil {
 					output <- y
 				}
 			}
 			if !device.excludeMetrics["nv_remapped_rows_failure"] {
-				f := 0
+				var f int = 0
 				if failure {
 					f = 1
 				}
-				y, err := lp.NewMetric("nv_remapped_rows_failure", device.tags, device.meta, f, time.Now())
+				y, err := lp.NewMessage("nv_remapped_rows_failure", device.tags, device.meta, map[string]interface{}{"value": f}, time.Now())
 				if err == nil {
 					output <- y
 				}
@@ -806,7 +814,7 @@ func readProcessCounts(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		//        Querying per-instance information using MIG device handles is not supported if the device is in vGPU Host virtualization mode.
 		procList, ret := nvml.DeviceGetComputeRunningProcesses(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_compute_processes", device.tags, device.meta, len(procList), time.Now())
+			y, err := lp.NewMessage("nv_compute_processes", device.tags, device.meta, map[string]interface{}{"value": len(procList)}, time.Now())
 			if err == nil {
 				output <- y
 			}
@@ -835,7 +843,7 @@ func readProcessCounts(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		//       Querying per-instance information using MIG device handles is not supported if the device is in vGPU Host virtualization mode.
 		procList, ret := nvml.DeviceGetGraphicsRunningProcesses(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMetric("nv_graphics_processes", device.tags, device.meta, len(procList), time.Now())
+			y, err := lp.NewMessage("nv_graphics_processes", device.tags, device.meta, map[string]interface{}{"value": len(procList)}, time.Now())
 			if err == nil {
 				output <- y
 			}
@@ -865,7 +873,7 @@ func readProcessCounts(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 	// 	//       Querying per-instance information using MIG device handles is not supported if the device is in vGPU Host virtualization mode.
 	// 	procList, ret := nvml.DeviceGetMPSComputeRunningProcesses(device.device)
 	// 	if ret == nvml.SUCCESS {
-	// 		y, err := lp.NewMetric("nv_mps_compute_processes", device.tags, device.meta, len(procList), time.Now())
+	// 		y, err := lp.NewMessage("nv_mps_compute_processes", device.tags, device.meta, map[string]interface{}{"value": len(procList)}, time.Now())
 	// 		if err == nil {
 	// 			output <- y
 	// 		}
@@ -893,7 +901,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_POWER)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMetric("nv_violation_power", device.tags, device.meta, t, time.Now())
+			y, err := lp.NewMessage("nv_violation_power", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -905,7 +913,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_THERMAL)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMetric("nv_violation_thermal", device.tags, device.meta, t, time.Now())
+			y, err := lp.NewMessage("nv_violation_thermal", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -917,7 +925,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_SYNC_BOOST)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMetric("nv_violation_sync_boost", device.tags, device.meta, t, time.Now())
+			y, err := lp.NewMessage("nv_violation_sync_boost", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -929,7 +937,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_BOARD_LIMIT)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMetric("nv_violation_board_limit", device.tags, device.meta, t, time.Now())
+			y, err := lp.NewMessage("nv_violation_board_limit", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -941,7 +949,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_LOW_UTILIZATION)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMetric("nv_violation_low_util", device.tags, device.meta, t, time.Now())
+			y, err := lp.NewMessage("nv_violation_low_util", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -953,7 +961,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_RELIABILITY)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMetric("nv_violation_reliability", device.tags, device.meta, t, time.Now())
+			y, err := lp.NewMessage("nv_violation_reliability", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -965,7 +973,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_TOTAL_APP_CLOCKS)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMetric("nv_violation_below_app_clock", device.tags, device.meta, t, time.Now())
+			y, err := lp.NewMessage("nv_violation_below_app_clock", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -977,7 +985,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_TOTAL_BASE_CLOCKS)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMetric("nv_violation_below_base_clock", device.tags, device.meta, t, time.Now())
+			y, err := lp.NewMessage("nv_violation_below_base_clock", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -1000,19 +1008,19 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 	var aggregate_recovery_errors uint64 = 0
 	var aggregate_crc_flit_errors uint64 = 0
 
-	for i := range nvml.NVLINK_MAX_LINKS {
+	for i := 0; i < nvml.NVLINK_MAX_LINKS; i++ {
 		state, ret := nvml.DeviceGetNvLinkState(device.device, i)
 		if ret == nvml.SUCCESS {
 			if state == nvml.FEATURE_ENABLED {
 				if !device.excludeMetrics["nv_nvlink_crc_errors"] {
 					// Data link receive data CRC error counter
 					count, ret := nvml.DeviceGetNvLinkErrorCounter(device.device, i, nvml.NVLINK_ERROR_DL_CRC_DATA)
-					aggregate_crc_errors += count
+					aggregate_crc_errors = aggregate_crc_errors + count
 					if ret == nvml.SUCCESS {
-						y, err := lp.NewMetric("nv_nvlink_crc_errors", device.tags, device.meta, count, time.Now())
+						y, err := lp.NewMessage("nv_nvlink_crc_errors", device.tags, device.meta, map[string]interface{}{"value": count}, time.Now())
 						if err == nil {
 							y.AddTag("stype", "nvlink")
-							y.AddTag("stype-id", strconv.Itoa(i))
+							y.AddTag("stype-id", fmt.Sprintf("%d", i))
 							output <- y
 						}
 					}
@@ -1020,12 +1028,12 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 				if !device.excludeMetrics["nv_nvlink_ecc_errors"] {
 					// Data link receive data ECC error counter
 					count, ret := nvml.DeviceGetNvLinkErrorCounter(device.device, i, nvml.NVLINK_ERROR_DL_ECC_DATA)
-					aggregate_ecc_errors += count
+					aggregate_ecc_errors = aggregate_ecc_errors + count
 					if ret == nvml.SUCCESS {
-						y, err := lp.NewMetric("nv_nvlink_ecc_errors", device.tags, device.meta, count, time.Now())
+						y, err := lp.NewMessage("nv_nvlink_ecc_errors", device.tags, device.meta, map[string]interface{}{"value": count}, time.Now())
 						if err == nil {
 							y.AddTag("stype", "nvlink")
-							y.AddTag("stype-id", strconv.Itoa(i))
+							y.AddTag("stype-id", fmt.Sprintf("%d", i))
 							output <- y
 						}
 					}
@@ -1033,12 +1041,12 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 				if !device.excludeMetrics["nv_nvlink_replay_errors"] {
 					// Data link transmit replay error counter
 					count, ret := nvml.DeviceGetNvLinkErrorCounter(device.device, i, nvml.NVLINK_ERROR_DL_REPLAY)
-					aggregate_replay_errors += count
+					aggregate_replay_errors = aggregate_replay_errors + count
 					if ret == nvml.SUCCESS {
-						y, err := lp.NewMetric("nv_nvlink_replay_errors", device.tags, device.meta, count, time.Now())
+						y, err := lp.NewMessage("nv_nvlink_replay_errors", device.tags, device.meta, map[string]interface{}{"value": count}, time.Now())
 						if err == nil {
 							y.AddTag("stype", "nvlink")
-							y.AddTag("stype-id", strconv.Itoa(i))
+							y.AddTag("stype-id", fmt.Sprintf("%d", i))
 							output <- y
 						}
 					}
@@ -1046,12 +1054,12 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 				if !device.excludeMetrics["nv_nvlink_recovery_errors"] {
 					// Data link transmit recovery error counter
 					count, ret := nvml.DeviceGetNvLinkErrorCounter(device.device, i, nvml.NVLINK_ERROR_DL_RECOVERY)
-					aggregate_recovery_errors += count
+					aggregate_recovery_errors = aggregate_recovery_errors + count
 					if ret == nvml.SUCCESS {
-						y, err := lp.NewMetric("nv_nvlink_recovery_errors", device.tags, device.meta, count, time.Now())
+						y, err := lp.NewMessage("nv_nvlink_recovery_errors", device.tags, device.meta, map[string]interface{}{"value": count}, time.Now())
 						if err == nil {
 							y.AddTag("stype", "nvlink")
-							y.AddTag("stype-id", strconv.Itoa(i))
+							y.AddTag("stype-id", fmt.Sprintf("%d", i))
 							output <- y
 						}
 					}
@@ -1059,12 +1067,12 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 				if !device.excludeMetrics["nv_nvlink_crc_flit_errors"] {
 					// Data link receive flow control digit CRC error counter
 					count, ret := nvml.DeviceGetNvLinkErrorCounter(device.device, i, nvml.NVLINK_ERROR_DL_CRC_FLIT)
-					aggregate_crc_flit_errors += count
+					aggregate_crc_flit_errors = aggregate_crc_flit_errors + count
 					if ret == nvml.SUCCESS {
-						y, err := lp.NewMetric("nv_nvlink_crc_flit_errors", device.tags, device.meta, count, time.Now())
+						y, err := lp.NewMessage("nv_nvlink_crc_flit_errors", device.tags, device.meta, map[string]interface{}{"value": count}, time.Now())
 						if err == nil {
 							y.AddTag("stype", "nvlink")
-							y.AddTag("stype-id", strconv.Itoa(i))
+							y.AddTag("stype-id", fmt.Sprintf("%d", i))
 							output <- y
 						}
 					}
@@ -1076,7 +1084,7 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 	// Export aggegated values
 	if !device.excludeMetrics["nv_nvlink_crc_errors"] {
 		// Data link receive data CRC error counter
-		y, err := lp.NewMetric("nv_nvlink_crc_errors_sum", device.tags, device.meta, aggregate_crc_errors, time.Now())
+		y, err := lp.NewMessage("nv_nvlink_crc_errors_sum", device.tags, device.meta, map[string]interface{}{"value": aggregate_crc_errors}, time.Now())
 		if err == nil {
 			y.AddTag("stype", "nvlink")
 			output <- y
@@ -1084,7 +1092,7 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 	}
 	if !device.excludeMetrics["nv_nvlink_ecc_errors"] {
 		// Data link receive data ECC error counter
-		y, err := lp.NewMetric("nv_nvlink_ecc_errors_sum", device.tags, device.meta, aggregate_ecc_errors, time.Now())
+		y, err := lp.NewMessage("nv_nvlink_ecc_errors_sum", device.tags, device.meta, map[string]interface{}{"value": aggregate_ecc_errors}, time.Now())
 		if err == nil {
 			y.AddTag("stype", "nvlink")
 			output <- y
@@ -1092,7 +1100,7 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 	}
 	if !device.excludeMetrics["nv_nvlink_replay_errors"] {
 		// Data link transmit replay error counter
-		y, err := lp.NewMetric("nv_nvlink_replay_errors_sum", device.tags, device.meta, aggregate_replay_errors, time.Now())
+		y, err := lp.NewMessage("nv_nvlink_replay_errors_sum", device.tags, device.meta, map[string]interface{}{"value": aggregate_replay_errors}, time.Now())
 		if err == nil {
 			y.AddTag("stype", "nvlink")
 			output <- y
@@ -1100,7 +1108,7 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 	}
 	if !device.excludeMetrics["nv_nvlink_recovery_errors"] {
 		// Data link transmit recovery error counter
-		y, err := lp.NewMetric("nv_nvlink_recovery_errors_sum", device.tags, device.meta, aggregate_recovery_errors, time.Now())
+		y, err := lp.NewMessage("nv_nvlink_recovery_errors_sum", device.tags, device.meta, map[string]interface{}{"value": aggregate_recovery_errors}, time.Now())
 		if err == nil {
 			y.AddTag("stype", "nvlink")
 			output <- y
@@ -1108,7 +1116,7 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 	}
 	if !device.excludeMetrics["nv_nvlink_crc_flit_errors"] {
 		// Data link receive flow control digit CRC error counter
-		y, err := lp.NewMetric("nv_nvlink_crc_flit_errors_sum", device.tags, device.meta, aggregate_crc_flit_errors, time.Now())
+		y, err := lp.NewMessage("nv_nvlink_crc_flit_errors_sum", device.tags, device.meta, map[string]interface{}{"value": aggregate_crc_flit_errors}, time.Now())
 		if err == nil {
 			y.AddTag("stype", "nvlink")
 			output <- y
@@ -1248,7 +1256,7 @@ func (m *NvidiaCollector) Read(interval time.Duration, output chan lp.CCMessage)
 			}
 			cclog.ComponentDebug(m.name, "Reading MIG devices for GPU", i)
 
-			for j := range maxMig {
+			for j := 0; j < maxMig; j++ {
 				mdev, ret := nvml.DeviceGetMigDeviceHandleByIndex(m.gpus[i].device, j)
 				if ret != nvml.SUCCESS {
 					continue
@@ -1265,7 +1273,9 @@ func (m *NvidiaCollector) Read(interval time.Duration, output chan lp.CCMessage)
 					meta:           map[string]string{},
 					excludeMetrics: excludeMetrics,
 				}
-				maps.Copy(migDevice.tags, m.gpus[i].tags)
+				for k, v := range m.gpus[i].tags {
+					migDevice.tags[k] = v
+				}
 				migDevice.tags["stype"] = "mig"
 				if m.config.UseUuidForMigDevices {
 					uuid, ret := nvml.DeviceGetUUID(mdev)
@@ -1279,17 +1289,19 @@ func (m *NvidiaCollector) Read(interval time.Duration, output chan lp.CCMessage)
 					if ret == nvml.SUCCESS {
 						mname, ret := nvml.DeviceGetName(mdev)
 						if ret == nvml.SUCCESS {
-							x := strings.ReplaceAll(mname, name, "")
+							x := strings.Replace(mname, name, "", -1)
-							x = strings.ReplaceAll(x, "MIG", "")
+							x = strings.Replace(x, "MIG", "", -1)
 							x = strings.TrimSpace(x)
 							migDevice.tags["stype-id"] = x
 						}
 					}
 				}
 				if _, ok := migDevice.tags["stype-id"]; !ok {
-					migDevice.tags["stype-id"] = strconv.Itoa(j)
+					migDevice.tags["stype-id"] = fmt.Sprintf("%d", j)
+				}
+				for k, v := range m.gpus[i].meta {
+					migDevice.meta[k] = v
 				}
-				maps.Copy(migDevice.meta, m.gpus[i].meta)
 				if _, ok := migDevice.meta["uuid"]; ok && !m.config.UseUuidForMigDevices {
 					uuid, ret := nvml.DeviceGetUUID(mdev)
 					if ret == nvml.SUCCESS {
@@ -1305,9 +1317,7 @@ func (m *NvidiaCollector) Read(interval time.Duration, output chan lp.CCMessage)
 
 func (m *NvidiaCollector) Close() {
 	if m.init {
-		if ret := nvml.Shutdown(); ret != nvml.SUCCESS {
+		nvml.Shutdown()
-			cclog.ComponentError(m.name, "nvml.Shutdown() not successful")
-		}
 		m.init = false
 	}
 }

collectors/raplMetric.go

@@ -16,8 +16,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 // running average power limit (RAPL) monitoring attributes for a zone
@@ -54,10 +54,9 @@ func (m *RAPLCollector) Init(config json.RawMessage) error {
 		return nil
 	}
 
+	var err error = nil
 	m.name = "RAPLCollector"
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.parallel = true
 	m.meta = map[string]string{
 		"source": m.name,
@@ -67,7 +66,7 @@ func (m *RAPLCollector) Init(config json.RawMessage) error {
 
 	// Read in the JSON configuration
 	if len(config) > 0 {
-		err := json.Unmarshal(config, &m.config)
+		err = json.Unmarshal(config, &m.config)
 		if err != nil {
 			cclog.ComponentError(m.name, "Error reading config:", err.Error())
 			return err
@@ -249,7 +248,7 @@ func (m *RAPLCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 					"rapl_average_power",
 					p.tags,
 					m.meta,
-					map[string]any{"value": averagePower},
+					map[string]interface{}{"value": averagePower},
 					energyTimestamp)
 				if err == nil {
 					output <- y

collectors/rocmsmiMetric.go

@@ -11,12 +11,10 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"slices"
-	"strconv"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 	"github.com/ClusterCockpit/go-rocm-smi/pkg/rocm_smi"
 )
 
@@ -54,9 +52,7 @@ func (m *RocmSmiCollector) Init(config json.RawMessage) error {
 	// Always set the name early in Init() to use it in cclog.Component* functions
 	m.name = "RocmSmiCollector"
 	// This is for later use, also call it early
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	// Define meta information sent with each metric
 	// (Can also be dynamic or this is the basic set with extension through AddMeta())
 	//m.meta = map[string]string{"source": m.name, "group": "AMD"}
@@ -89,11 +85,22 @@ func (m *RocmSmiCollector) Init(config json.RawMessage) error {
 		return err
 	}
 
+	exclDev := func(s string) bool {
+		skip_device := false
+		for _, excl := range m.config.ExcludeDevices {
+			if excl == s {
+				skip_device = true
+				break
+			}
+		}
+		return skip_device
+	}
+
 	m.devices = make([]RocmSmiCollectorDevice, 0)
 
-	for i := range numDevs {
+	for i := 0; i < numDevs; i++ {
-		str_i := strconv.Itoa(i)
+		str_i := fmt.Sprintf("%d", i)
-		if slices.Contains(m.config.ExcludeDevices, str_i) {
+		if exclDev(str_i) {
 			continue
 		}
 		device, ret := rocm_smi.DeviceGetHandleByIndex(i)
@@ -117,7 +124,7 @@ func (m *RocmSmiCollector) Init(config json.RawMessage) error {
 			pciInfo.Device,
 			pciInfo.Function)
 
-		if slices.Contains(m.config.ExcludeDevices, pciId) {
+		if exclDev(pciId) {
 			continue
 		}
 
@@ -175,130 +182,130 @@ 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]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_gfx_util", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_umc_util"] {
 			value := metrics.Average_umc_activity
-			y, err := lp.NewMessage("rocm_umc_util", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_umc_util", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_mm_util"] {
 			value := metrics.Average_mm_activity
-			y, err := lp.NewMessage("rocm_mm_util", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_mm_util", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_avg_power"] {
 			value := metrics.Average_socket_power
-			y, err := lp.NewMessage("rocm_avg_power", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_avg_power", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_mem"] {
 			value := metrics.Temperature_mem
-			y, err := lp.NewMessage("rocm_temp_mem", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_temp_mem", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_hotspot"] {
 			value := metrics.Temperature_hotspot
-			y, err := lp.NewMessage("rocm_temp_hotspot", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_temp_hotspot", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_edge"] {
 			value := metrics.Temperature_edge
-			y, err := lp.NewMessage("rocm_temp_edge", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_temp_edge", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_vrgfx"] {
 			value := metrics.Temperature_vrgfx
-			y, err := lp.NewMessage("rocm_temp_vrgfx", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_temp_vrgfx", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_vrsoc"] {
 			value := metrics.Temperature_vrsoc
-			y, err := lp.NewMessage("rocm_temp_vrsoc", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_temp_vrsoc", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_vrmem"] {
 			value := metrics.Temperature_vrmem
-			y, err := lp.NewMessage("rocm_temp_vrmem", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_temp_vrmem", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_gfx_clock"] {
 			value := metrics.Average_gfxclk_frequency
-			y, err := lp.NewMessage("rocm_gfx_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_gfx_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_soc_clock"] {
 			value := metrics.Average_socclk_frequency
-			y, err := lp.NewMessage("rocm_soc_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_soc_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_u_clock"] {
 			value := metrics.Average_uclk_frequency
-			y, err := lp.NewMessage("rocm_u_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_u_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_v0_clock"] {
 			value := metrics.Average_vclk0_frequency
-			y, err := lp.NewMessage("rocm_v0_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_v0_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_v1_clock"] {
 			value := metrics.Average_vclk1_frequency
-			y, err := lp.NewMessage("rocm_v1_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_v1_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_d0_clock"] {
 			value := metrics.Average_dclk0_frequency
-			y, err := lp.NewMessage("rocm_d0_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_d0_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_d1_clock"] {
 			value := metrics.Average_dclk1_frequency
-			y, err := lp.NewMessage("rocm_d1_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_d1_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_hbm"] {
-			for i := range rocm_smi.NUM_HBM_INSTANCES {
+			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]any{"value": value}, timestamp)
+				y, err := lp.NewMessage("rocm_temp_hbm", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
 				if err == nil {
 					y.AddTag("stype", "device")
-					y.AddTag("stype-id", strconv.Itoa(i))
+					y.AddTag("stype-id", fmt.Sprintf("%d", i))
 					output <- y
 				}
 			}

collectors/rocmsmiMetric.md

@@ -15,9 +15,7 @@ hugo_path: docs/reference/cc-metric-collector/collectors/rocmsmi.md
 ```json
   "rocm_smi": {
     "exclude_devices": [
-      "0",
+      "0","1", "0000000:ff:01.0"
-      "1",
-      "0000000:ff:01.0"
     ],
     "exclude_metrics": [
       "rocm_mm_util",
@@ -25,7 +23,7 @@ hugo_path: docs/reference/cc-metric-collector/collectors/rocmsmi.md
     ],
     "use_pci_info_as_type_id": true,
     "add_pci_info_tag": false,
-    "add_serial_meta": false
+    "add_serial_meta": false,
   }
 ```
 

collectors/sampleMetric.go

@@ -9,11 +9,10 @@ package collectors
 
 import (
 	"encoding/json"
-	"fmt"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 // These are the fields we read from the JSON configuration
@@ -42,9 +41,7 @@ func (m *SampleCollector) Init(config json.RawMessage) error {
 	// Always set the name early in Init() to use it in cclog.Component* functions
 	m.name = "SampleCollector"
 	// This is for later use, also call it early
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	// Tell whether the collector should be run in parallel with others (reading files, ...)
 	// or it should be run serially, mostly for collectors actually doing measurements
 	// because they should not measure the execution of the other collectors
@@ -95,7 +92,7 @@ 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]any{"value": value}, timestamp)
+	y, err := lp.NewMessage("sample_metric", m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
 	if err == nil {
 		// Send it to output channel
 		output <- y

collectors/sampleTimerMetric.go

@@ -9,12 +9,11 @@ package collectors
 
 import (
 	"encoding/json"
-	"fmt"
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 // These are the fields we read from the JSON configuration
@@ -37,13 +36,11 @@ type SampleTimerCollector struct {
 }
 
 func (m *SampleTimerCollector) Init(name string, config json.RawMessage) error {
-	var err error
+	var err error = nil
 	// Always set the name early in Init() to use it in cclog.Component* functions
 	m.name = "SampleTimerCollector"
 	// This is for later use, also call it early
-	if err = m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	// Define meta information sent with each metric
 	// (Can also be dynamic or this is the basic set with extension through AddMeta())
 	m.meta = map[string]string{"source": m.name, "group": "SAMPLE"}
@@ -110,7 +107,7 @@ 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]any{"value": value}, timestamp)
+	y, err := lp.NewMessage("sample_metric", m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
 	if err == nil && m.output != nil {
 		// Send it to output channel if we have a valid channel
 		m.output <- y

collectors/schedstatMetric.go

@@ -11,13 +11,14 @@ import (
 	"bufio"
 	"encoding/json"
 	"fmt"
+	"math"
 	"os"
 	"strconv"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 const SCHEDSTATFILE = `/proc/schedstat`
@@ -46,37 +47,37 @@ type SchedstatCollector struct {
 // Called once by the collector manager
 // All tags, meta data tags and metrics that do not change over the runtime should be set here
 func (m *SchedstatCollector) Init(config json.RawMessage) error {
+	var err error = nil
 	// Always set the name early in Init() to use it in cclog.Component* functions
 	m.name = "SchedstatCollector"
 	// This is for later use, also call it early
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	// Tell whether the collector should be run in parallel with others (reading files, ...)
-	// or it should be run serially, mostly for collectors actually doing measurements
+	// or it should be run serially, mostly for collectors acutally doing measurements
 	// because they should not measure the execution of the other collectors
 	m.parallel = true
 	// Define meta information sent with each metric
 	// (Can also be dynamic or this is the basic set with extension through AddMeta())
-	m.meta = map[string]string{
+	m.meta = map[string]string{"source": m.name, "group": "SCHEDSTAT"}
-		"source": m.name,
-		"group":  "SCHEDSTAT",
-	}
 
 	// Read in the JSON configuration
 	if len(config) > 0 {
-		if err := json.Unmarshal(config, &m.config); err != nil {
+		err = json.Unmarshal(config, &m.config)
-			return fmt.Errorf("%s Init(): Error reading config: %w", m.name, err)
+		if err != nil {
+			cclog.ComponentError(m.name, "Error reading config:", err.Error())
+			return err
 		}
 	}
 
 	// Check input file
-	file, err := os.Open(SCHEDSTATFILE)
+	file, err := os.Open(string(SCHEDSTATFILE))
 	if err != nil {
-		return fmt.Errorf("%s Init(): Failed opening scheduler statistics file \"%s\": %w", m.name, SCHEDSTATFILE, err)
+		cclog.ComponentError(m.name, err.Error())
 	}
+	defer file.Close()
 
 	// Pre-generate tags for all CPUs
+	num_cpus := 0
 	m.cputags = make(map[string]map[string]string)
 	m.olddata = make(map[string]map[string]int64)
 	scanner := bufio.NewScanner(file)
@@ -88,18 +89,10 @@ func (m *SchedstatCollector) Init(config json.RawMessage) error {
 			cpu, _ := strconv.Atoi(cpustr)
 			running, _ := strconv.ParseInt(linefields[7], 10, 64)
 			waiting, _ := strconv.ParseInt(linefields[8], 10, 64)
-			m.cputags[linefields[0]] = map[string]string{
+			m.cputags[linefields[0]] = map[string]string{"type": "hwthread", "type-id": fmt.Sprintf("%d", cpu)}
-				"type":    "hwthread",
+			m.olddata[linefields[0]] = map[string]int64{"running": running, "waiting": waiting}
-				"type-id": strconv.Itoa(cpu),
+			num_cpus++
 		}
-			m.olddata[linefields[0]] = map[string]int64{
-				"running": running,
-				"waiting": waiting,
-			}
-		}
-	}
-	if err := file.Close(); err != nil {
-		return fmt.Errorf("%s Init(): Failed closing scheduler statistics file \"%s\": %w", m.name, SCHEDSTATFILE, err)
 	}
 
 	// Save current timestamp
@@ -116,14 +109,14 @@ func (m *SchedstatCollector) ParseProcLine(linefields []string, tags map[string]
 	diff_running := running - m.olddata[linefields[0]]["running"]
 	diff_waiting := waiting - m.olddata[linefields[0]]["waiting"]
 
-	l_running := float64(diff_running) / tsdelta.Seconds() / 1000_000_000
+	var l_running float64 = float64(diff_running) / tsdelta.Seconds() / (math.Pow(1000, 3))
-	l_waiting := float64(diff_waiting) / tsdelta.Seconds() / 1000_000_000
+	var l_waiting float64 = float64(diff_waiting) / tsdelta.Seconds() / (math.Pow(1000, 3))
 
 	m.olddata[linefields[0]]["running"] = running
 	m.olddata[linefields[0]]["waiting"] = waiting
 	value := l_running + l_waiting
 
-	y, err := lp.NewMessage("cpu_load_core", tags, m.meta, map[string]any{"value": value}, now)
+	y, err := lp.NewMessage("cpu_load_core", tags, m.meta, map[string]interface{}{"value": value}, now)
 	if err == nil {
 		// Send it to output channel
 		output <- y
@@ -141,19 +134,11 @@ func (m *SchedstatCollector) Read(interval time.Duration, output chan lp.CCMessa
 	now := time.Now()
 	tsdelta := now.Sub(m.lastTimestamp)
 
-	file, err := os.Open(SCHEDSTATFILE)
+	file, err := os.Open(string(SCHEDSTATFILE))
 	if err != nil {
-		cclog.ComponentError(
+		cclog.ComponentError(m.name, err.Error())
-			m.name,
-			fmt.Sprintf("Read(): Failed to open file '%s': %v", SCHEDSTATFILE, err))
 	}
-	defer func() {
+	defer file.Close()
-		if err := file.Close(); err != nil {
-			cclog.ComponentError(
-				m.name,
-				fmt.Sprintf("Read(): Failed to close file '%s': %v", SCHEDSTATFILE, err))
-		}
-	}()
 
 	scanner := bufio.NewScanner(file)
 	for scanner.Scan() {

collectors/selfMetric.go

@@ -9,13 +9,12 @@ package collectors
 
 import (
 	"encoding/json"
-	"fmt"
 	"runtime"
 	"syscall"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 type SelfCollectorConfig struct {
@@ -35,9 +34,7 @@ type SelfCollector struct {
 func (m *SelfCollector) Init(config json.RawMessage) error {
 	var err error = nil
 	m.name = "SelfCollector"
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	m.parallel = true
 	m.meta = map[string]string{"source": m.name, "group": "Self"}
 	m.tags = map[string]string{"type": "node"}
@@ -59,49 +56,49 @@ func (m *SelfCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 		var memstats runtime.MemStats
 		runtime.ReadMemStats(&memstats)
 
-		y, err := lp.NewMessage("total_alloc", m.tags, m.meta, map[string]any{"value": memstats.TotalAlloc}, timestamp)
+		y, err := lp.NewMessage("total_alloc", m.tags, m.meta, map[string]interface{}{"value": memstats.TotalAlloc}, timestamp)
 		if err == nil {
 			y.AddMeta("unit", "Bytes")
 			output <- y
 		}
-		y, err = lp.NewMessage("heap_alloc", m.tags, m.meta, map[string]any{"value": memstats.HeapAlloc}, timestamp)
+		y, err = lp.NewMessage("heap_alloc", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapAlloc}, timestamp)
 		if err == nil {
 			y.AddMeta("unit", "Bytes")
 			output <- y
 		}
-		y, err = lp.NewMessage("heap_sys", m.tags, m.meta, map[string]any{"value": memstats.HeapSys}, timestamp)
+		y, err = lp.NewMessage("heap_sys", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapSys}, timestamp)
 		if err == nil {
 			y.AddMeta("unit", "Bytes")
 			output <- y
 		}
-		y, err = lp.NewMessage("heap_idle", m.tags, m.meta, map[string]any{"value": memstats.HeapIdle}, timestamp)
+		y, err = lp.NewMessage("heap_idle", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapIdle}, timestamp)
 		if err == nil {
 			y.AddMeta("unit", "Bytes")
 			output <- y
 		}
-		y, err = lp.NewMessage("heap_inuse", m.tags, m.meta, map[string]any{"value": memstats.HeapInuse}, timestamp)
+		y, err = lp.NewMessage("heap_inuse", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapInuse}, timestamp)
 		if err == nil {
 			y.AddMeta("unit", "Bytes")
 			output <- y
 		}
-		y, err = lp.NewMessage("heap_released", m.tags, m.meta, map[string]any{"value": memstats.HeapReleased}, timestamp)
+		y, err = lp.NewMessage("heap_released", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapReleased}, timestamp)
 		if err == nil {
 			y.AddMeta("unit", "Bytes")
 			output <- y
 		}
-		y, err = lp.NewMessage("heap_objects", m.tags, m.meta, map[string]any{"value": memstats.HeapObjects}, timestamp)
+		y, err = lp.NewMessage("heap_objects", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapObjects}, timestamp)
 		if err == nil {
 			output <- y
 		}
 	}
 	if m.config.GoRoutines {
-		y, err := lp.NewMessage("num_goroutines", m.tags, m.meta, map[string]any{"value": runtime.NumGoroutine()}, timestamp)
+		y, err := lp.NewMessage("num_goroutines", m.tags, m.meta, map[string]interface{}{"value": runtime.NumGoroutine()}, timestamp)
 		if err == nil {
 			output <- y
 		}
 	}
 	if m.config.CgoCalls {
-		y, err := lp.NewMessage("num_cgo_calls", m.tags, m.meta, map[string]any{"value": runtime.NumCgoCall()}, timestamp)
+		y, err := lp.NewMessage("num_cgo_calls", m.tags, m.meta, map[string]interface{}{"value": runtime.NumCgoCall()}, timestamp)
 		if err == nil {
 			output <- y
 		}
@@ -112,35 +109,35 @@ 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]any{"value": t}, timestamp)
+			y, err := lp.NewMessage("rusage_user_time", m.tags, m.meta, map[string]interface{}{"value": t}, timestamp)
 			if err == nil {
 				y.AddMeta("unit", "seconds")
 				output <- y
 			}
 			sec, nsec = rusage.Stime.Unix()
 			t = float64(sec) + (float64(nsec) * 1e-9)
-			y, err = lp.NewMessage("rusage_system_time", m.tags, m.meta, map[string]any{"value": t}, timestamp)
+			y, err = lp.NewMessage("rusage_system_time", m.tags, m.meta, map[string]interface{}{"value": t}, timestamp)
 			if err == nil {
 				y.AddMeta("unit", "seconds")
 				output <- y
 			}
-			y, err = lp.NewMessage("rusage_vol_ctx_switch", m.tags, m.meta, map[string]any{"value": rusage.Nvcsw}, timestamp)
+			y, err = lp.NewMessage("rusage_vol_ctx_switch", m.tags, m.meta, map[string]interface{}{"value": rusage.Nvcsw}, timestamp)
 			if err == nil {
 				output <- y
 			}
-			y, err = lp.NewMessage("rusage_invol_ctx_switch", m.tags, m.meta, map[string]any{"value": rusage.Nivcsw}, timestamp)
+			y, err = lp.NewMessage("rusage_invol_ctx_switch", m.tags, m.meta, map[string]interface{}{"value": rusage.Nivcsw}, timestamp)
 			if err == nil {
 				output <- y
 			}
-			y, err = lp.NewMessage("rusage_signals", m.tags, m.meta, map[string]any{"value": rusage.Nsignals}, timestamp)
+			y, err = lp.NewMessage("rusage_signals", m.tags, m.meta, map[string]interface{}{"value": rusage.Nsignals}, timestamp)
 			if err == nil {
 				output <- y
 			}
-			y, err = lp.NewMessage("rusage_major_pgfaults", m.tags, m.meta, map[string]any{"value": rusage.Majflt}, timestamp)
+			y, err = lp.NewMessage("rusage_major_pgfaults", m.tags, m.meta, map[string]interface{}{"value": rusage.Majflt}, timestamp)
 			if err == nil {
 				output <- y
 			}
-			y, err = lp.NewMessage("rusage_minor_pgfaults", m.tags, m.meta, map[string]any{"value": rusage.Minflt}, timestamp)
+			y, err = lp.NewMessage("rusage_minor_pgfaults", m.tags, m.meta, map[string]interface{}{"value": rusage.Minflt}, timestamp)
 			if err == nil {
 				output <- y
 			}

collectors/slurmCgroupMetric.go

@@ -1,400 +0,0 @@
-package collectors
-
-import (
-	"encoding/json"
-	"fmt"
-	"os"
-	"os/exec"
-	"os/user"
-	"path/filepath"
-	"strconv"
-	"strings"
-	"time"
-
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
-)
-
-type SlurmJobData struct {
-	MemoryUsage      float64
-	MaxMemoryUsage   float64
-	LimitMemoryUsage float64
-	CpuUsageUser     float64
-	CpuUsageSys      float64
-	CpuSet           []int
-}
-
-type SlurmCgroupsConfig struct {
-	CgroupBase     string   `json:"cgroup_base"`
-	ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
-	UseSudo        bool     `json:"use_sudo,omitempty"`
-}
-
-type SlurmCgroupCollector struct {
-	metricCollector
-	config         SlurmCgroupsConfig
-	meta           map[string]string
-	tags           map[string]string
-	allCPUs        []int
-	cpuUsed        map[int]bool
-	cgroupBase     string
-	excludeMetrics map[string]struct{}
-	useSudo        bool
-}
-
-const defaultCgroupBase = "/sys/fs/cgroup/system.slice/slurmstepd.scope"
-
-func ParseCPUs(cpuset string) ([]int, error) {
-	var result []int
-	if cpuset == "" {
-		return result, nil
-	}
-
-	for r := range strings.SplitSeq(cpuset, ",") {
-		if strings.Contains(r, "-") {
-			parts := strings.Split(r, "-")
-			if len(parts) != 2 {
-				return nil, fmt.Errorf("invalid CPU range: %s", r)
-			}
-			start, err := strconv.Atoi(strings.TrimSpace(parts[0]))
-			if err != nil {
-				return nil, fmt.Errorf("invalid CPU range start: %s", parts[0])
-			}
-			end, err := strconv.Atoi(strings.TrimSpace(parts[1]))
-			if err != nil {
-				return nil, fmt.Errorf("invalid CPU range end: %s", parts[1])
-			}
-			for i := start; i <= end; i++ {
-				result = append(result, i)
-			}
-		} else {
-			cpu, err := strconv.Atoi(strings.TrimSpace(r))
-			if err != nil {
-				return nil, fmt.Errorf("invalid CPU ID: %s", r)
-			}
-			result = append(result, cpu)
-		}
-	}
-	return result, nil
-}
-
-func GetAllCPUs() ([]int, error) {
-	cpuOnline := "/sys/devices/system/cpu/online"
-	data, err := os.ReadFile(cpuOnline)
-	if err != nil {
-		return nil, fmt.Errorf("failed to read file \"%s\": %w", cpuOnline, err)
-	}
-	return ParseCPUs(strings.TrimSpace(string(data)))
-}
-
-func (m *SlurmCgroupCollector) isExcluded(metric string) bool {
-	_, found := m.excludeMetrics[metric]
-	return found
-}
-
-func (m *SlurmCgroupCollector) readFile(path string) ([]byte, error) {
-	if m.useSudo {
-		cmd := exec.Command("sudo", "cat", path)
-		return cmd.Output()
-	}
-	return os.ReadFile(path)
-}
-
-func (m *SlurmCgroupCollector) Init(config json.RawMessage) error {
-	var err error
-	m.name = "SlurmCgroupCollector"
-	if err := m.setup(); err != nil {
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
-	m.parallel = true
-	m.meta = map[string]string{
-		"source": m.name,
-		"group":  "SLURM"}
-	m.tags = map[string]string{
-		"type": "hwthread"}
-	m.cpuUsed = make(map[int]bool)
-	m.cgroupBase = defaultCgroupBase
-
-	if len(config) > 0 {
-		err = json.Unmarshal(config, &m.config)
-		if err != nil {
-			return fmt.Errorf("%s Init(): Error reading JSON config: %w", m.name, err)
-		}
-		m.excludeMetrics = make(map[string]struct{})
-		for _, metric := range m.config.ExcludeMetrics {
-			m.excludeMetrics[metric] = struct{}{}
-		}
-		if m.config.CgroupBase != "" {
-			m.cgroupBase = m.config.CgroupBase
-		}
-	}
-
-	m.useSudo = m.config.UseSudo
-	if !m.useSudo {
-		user, err := user.Current()
-		if err != nil {
-			return fmt.Errorf("%s Init(): Failed to get current user: %w", m.name, err)
-		}
-		if user.Uid != "0" {
-			return fmt.Errorf("%s Init(): Reading cgroup files requires root privileges (or enable use_sudo in config)", m.name)
-		}
-	}
-
-	m.allCPUs, err = GetAllCPUs()
-	if err != nil {
-		return fmt.Errorf("%s Init(): Error reading online CPUs: %w", m.name, err)
-	}
-
-	m.init = true
-	return nil
-}
-
-func (m *SlurmCgroupCollector) ReadJobData(jobdir string) (SlurmJobData, error) {
-	jobdata := SlurmJobData{
-		MemoryUsage:      0,
-		MaxMemoryUsage:   0,
-		LimitMemoryUsage: 0,
-		CpuUsageUser:     0,
-		CpuUsageSys:      0,
-		CpuSet:           []int{},
-	}
-
-	cg := func(f string) string {
-		return filepath.Join(m.cgroupBase, jobdir, f)
-	}
-
-	memUsage, err := m.readFile(cg("memory.current"))
-	if err == nil {
-		x, err := strconv.ParseFloat(strings.TrimSpace(string(memUsage)), 64)
-		if err == nil {
-			jobdata.MemoryUsage = x
-		}
-	}
-
-	maxMem, err := m.readFile(cg("memory.peak"))
-	if err == nil {
-		x, err := strconv.ParseFloat(strings.TrimSpace(string(maxMem)), 64)
-		if err == nil {
-			jobdata.MaxMemoryUsage = x
-		}
-	}
-
-	limitMem, err := m.readFile(cg("memory.max"))
-	if err == nil {
-		x, err := strconv.ParseFloat(strings.TrimSpace(string(limitMem)), 64)
-		if err == nil {
-			jobdata.LimitMemoryUsage = x
-		}
-	}
-
-	cpuStat, err := m.readFile(cg("cpu.stat"))
-	if err == nil {
-		lines := strings.Split(strings.TrimSpace(string(cpuStat)), "\n")
-		var usageUsec, userUsec, systemUsec float64
-		for _, line := range lines {
-			fields := strings.Fields(line)
-			if len(fields) < 2 {
-				continue
-			}
-			value, err := strconv.ParseFloat(fields[1], 64)
-			if err != nil {
-				continue
-			}
-			switch fields[0] {
-			case "usage_usec":
-				usageUsec = value
-			case "user_usec":
-				userUsec = value
-			case "system_usec":
-				systemUsec = value
-			}
-		}
-		if usageUsec > 0 {
-			jobdata.CpuUsageUser = (userUsec * 100.0 / usageUsec)
-			jobdata.CpuUsageSys = (systemUsec * 100.0 / usageUsec)
-		}
-	}
-
-	cpuSet, err := m.readFile(cg("cpuset.cpus"))
-	if err == nil {
-		cpus, err := ParseCPUs(strings.TrimSpace(string(cpuSet)))
-		if err == nil {
-			jobdata.CpuSet = cpus
-		}
-	}
-
-	return jobdata, nil
-}
-
-func (m *SlurmCgroupCollector) Read(interval time.Duration, output chan lp.CCMessage) {
-	timestamp := time.Now()
-
-	for k := range m.cpuUsed {
-		delete(m.cpuUsed, k)
-	}
-
-	globPattern := filepath.Join(m.cgroupBase, "job_*")
-	jobDirs, err := filepath.Glob(globPattern)
-	if err != nil {
-		cclog.ComponentError(m.name, "Error globbing job directories:", err.Error())
-		return
-	}
-
-	for _, jdir := range jobDirs {
-		jKey := filepath.Base(jdir)
-
-		jobdata, err := m.ReadJobData(jKey)
-		if err != nil {
-			cclog.ComponentError(m.name, "Error reading job data for", jKey, ":", err.Error())
-			continue
-		}
-
-		if len(jobdata.CpuSet) > 0 {
-			coreCount := float64(len(jobdata.CpuSet))
-			for _, cpu := range jobdata.CpuSet {
-				coreTags := map[string]string{
-					"type":    "hwthread",
-					"type-id": strconv.Itoa(cpu),
-				}
-
-				if coreCount > 0 && !m.isExcluded("job_mem_used") {
-					memPerCore := jobdata.MemoryUsage / coreCount
-					if y, err := lp.NewMessage(
-						"job_mem_used",
-						coreTags,
-						m.meta,
-						map[string]any{
-							"value": memPerCore},
-						timestamp); err == nil {
-						y.AddMeta("unit", "Bytes")
-						output <- y
-					}
-				}
-
-				if coreCount > 0 && !m.isExcluded("job_max_mem_used") {
-					maxMemPerCore := jobdata.MaxMemoryUsage / coreCount
-					if y, err := lp.NewMessage(
-						"job_max_mem_used",
-						coreTags,
-						m.meta,
-						map[string]any{
-							"value": maxMemPerCore},
-						timestamp); err == nil {
-						y.AddMeta("unit", "Bytes")
-						output <- y
-					}
-				}
-
-				if coreCount > 0 && !m.isExcluded("job_mem_limit") {
-					limitPerCore := jobdata.LimitMemoryUsage / coreCount
-					if y, err := lp.NewMessage(
-						"job_mem_limit",
-						coreTags,
-						m.meta,
-						map[string]any{
-							"value": limitPerCore},
-						timestamp); err == nil {
-						y.AddMeta("unit", "Bytes")
-						output <- y
-					}
-				}
-
-				if coreCount > 0 && !m.isExcluded("job_user_cpu") {
-					cpuUserPerCore := jobdata.CpuUsageUser / coreCount
-					if y, err := lp.NewMessage(
-						"job_user_cpu",
-						coreTags,
-						m.meta,
-						map[string]any{
-							"value": cpuUserPerCore},
-						timestamp); err == nil {
-						y.AddMeta("unit", "%")
-						output <- y
-					}
-				}
-
-				if coreCount > 0 && !m.isExcluded("job_sys_cpu") {
-					cpuSysPerCore := jobdata.CpuUsageSys / coreCount
-					if y, err := lp.NewMessage(
-						"job_sys_cpu",
-						coreTags,
-						m.meta,
-						map[string]any{
-							"value": cpuSysPerCore},
-						timestamp); err == nil {
-						y.AddMeta("unit", "%")
-						output <- y
-					}
-				}
-
-				m.cpuUsed[cpu] = true
-			}
-		}
-	}
-
-	for _, cpu := range m.allCPUs {
-		if !m.cpuUsed[cpu] {
-			coreTags := map[string]string{
-				"type":    "hwthread",
-				"type-id": strconv.Itoa(cpu),
-			}
-
-			if !m.isExcluded("job_mem_used") {
-				if y, err := lp.NewMessage(
-					"job_mem_used",
-					coreTags,
-					m.meta,
-					map[string]any{
-						"value": 0},
-					timestamp); err == nil {
-					y.AddMeta("unit", "Bytes")
-					output <- y
-				}
-			}
-
-			if !m.isExcluded("job_max_mem_used") {
-				if y, err := lp.NewMessage(
-					"job_max_mem_used",
-					coreTags,
-					m.meta,
-					map[string]any{
-						"value": 0},
-					timestamp); err == nil {
-					y.AddMeta("unit", "Bytes")
-					output <- y
-				}
-			}
-
-			if !m.isExcluded("job_mem_limit") {
-				if y, err := lp.NewMessage(
-					"job_mem_limit",
-					coreTags,
-					m.meta,
-					map[string]any{
-						"value": 0},
-					timestamp); err == nil {
-					y.AddMeta("unit", "Bytes")
-					output <- y
-				}
-			}
-
-			if !m.isExcluded("job_user_cpu") {
-				if y, err := lp.NewMessage("job_user_cpu", coreTags, m.meta, map[string]any{"value": 0}, timestamp); err == nil {
-					y.AddMeta("unit", "%")
-					output <- y
-				}
-			}
-
-			if !m.isExcluded("job_sys_cpu") {
-				if y, err := lp.NewMessage("job_sys_cpu", coreTags, m.meta, map[string]any{"value": 0}, timestamp); err == nil {
-					y.AddMeta("unit", "%")
-					output <- y
-				}
-			}
-		}
-	}
-}
-
-func (m *SlurmCgroupCollector) Close() {
-	m.init = false
-}

collectors/slurmCgroupMetric.md

@@ -1,50 +0,0 @@
-<!--
----
-title: Slurm cgroup metric collector
-description: Collect per-core memory and CPU usage for SLURM jobs from cgroup v2
-categories: [cc-metric-collector]
-tags: ['Admin']
-weight: 3
-hugo_path: docs/reference/cc-metric-collector/collectors/slurm_cgroup.md
----
--->
-
-## `slurm_cgroup` collector
-
-The `slurm_cgroup` collector reads job-specific resource metrics from the cgroup v2 filesystem and provides **hwthread** metrics for memory and CPU usage of running SLURM jobs.  
-
-### Example configuration
-
-```json
-"slurm_cgroup": {
-  "cgroup_base": "/sys/fs/cgroup/system.slice/slurmstepd.scope",
-  "exclude_metrics": [
-    "job_sys_cpu",
-    "job_mem_limit"
-  ],
-  "use_sudo": false
-}
-```
-
-* The `cgroup_base` parameter (optional) can be set to specify the root path to SLURM job cgroups. The default is `/sys/fs/cgroup/system.slice/slurmstepd.scope`.
-* The `exclude_metrics` array can be used to suppress individual metrics from being sent to the sink.
-* The cgroups metrics are only available for root users. If password-less sudo is configured, you can enable sudo in the configuration.
-
-### Reported metrics
-
-All metrics are available **per hardware thread** :
-
-* `job_mem_used` (`unit=Bytes`): Current memory usage of the job
-* `job_max_mem_used` (`unit=Bytes`): Peak memory usage
-* `job_mem_limit` (`unit=Bytes`): Cgroup memory limit
-* `job_user_cpu` (`unit=%`): User CPU utilization percentage
-* `job_sys_cpu` (`unit=%`): System CPU utilization percentage
-
-Each metric has tags:
-
-* `type=hwthread`
-* `type-id=<core_id>`
-
-### Limitations
-
-* **cgroups v2 required:** This collector only supports systems running with cgroups v2 (unified hierarchy).

collectors/tempMetric.go

@@ -16,8 +16,8 @@ import (
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 )
 
 // See: https://www.kernel.org/doc/html/latest/hwmon/sysfs-interface.html
@@ -58,13 +58,11 @@ func (m *TempCollector) Init(config json.RawMessage) error {
 
 	m.name = "TempCollector"
 	m.parallel = true
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
-			return fmt.Errorf("%s Init(): failed to unmarshal JSON config: %w", m.name, err)
+			return err
 		}
 	}
 
@@ -80,10 +78,10 @@ func (m *TempCollector) Init(config json.RawMessage) error {
 	globPattern := filepath.Join("/sys/class/hwmon", "*", "temp*_input")
 	inputFiles, err := filepath.Glob(globPattern)
 	if err != nil {
-		return fmt.Errorf("%s Init(): unable to glob files with pattern '%s': %w", m.name, globPattern, err)
+		return fmt.Errorf("unable to glob files with pattern '%s': %v", globPattern, err)
 	}
 	if inputFiles == nil {
-		return fmt.Errorf("%s Init(): unable to find any files with pattern '%s'", m.name, globPattern)
+		return fmt.Errorf("unable to find any files with pattern '%s'", globPattern)
 	}
 
 	// Get sensor name for each temperature sensor file
@@ -119,7 +117,7 @@ func (m *TempCollector) Init(config json.RawMessage) error {
 			sensor.metricName = sensor.label
 		}
 		sensor.metricName = strings.ToLower(sensor.metricName)
-		sensor.metricName = strings.ReplaceAll(sensor.metricName, " ", "_")
+		sensor.metricName = strings.Replace(sensor.metricName, " ", "_", -1)
 		// Add temperature prefix, if required
 		if !strings.Contains(sensor.metricName, "temp") {
 			sensor.metricName = "temp_" + sensor.metricName
@@ -172,7 +170,7 @@ func (m *TempCollector) Init(config json.RawMessage) error {
 
 	// Empty sensors map
 	if len(m.sensors) == 0 {
-		return fmt.Errorf("%s Init(): no temperature sensors found", m.name)
+		return fmt.Errorf("no temperature sensors found")
 	}
 
 	// Finished initialization
@@ -203,7 +201,7 @@ func (m *TempCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 			sensor.metricName,
 			sensor.tags,
 			m.meta,
-			map[string]any{"value": x},
+			map[string]interface{}{"value": x},
 			time.Now(),
 		)
 		if err == nil {
@@ -216,7 +214,7 @@ func (m *TempCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 				sensor.maxTempName,
 				sensor.tags,
 				m.meta,
-				map[string]any{"value": sensor.maxTemp},
+				map[string]interface{}{"value": sensor.maxTemp},
 				time.Now(),
 			)
 			if err == nil {
@@ -230,7 +228,7 @@ func (m *TempCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 				sensor.critTempName,
 				sensor.tags,
 				m.meta,
-				map[string]any{"value": sensor.critTemp},
+				map[string]interface{}{"value": sensor.critTemp},
 				time.Now(),
 			)
 			if err == nil {

collectors/topprocsMetric.go

@@ -9,13 +9,14 @@ package collectors
 
 import (
 	"encoding/json"
+	"errors"
 	"fmt"
+	"log"
 	"os/exec"
 	"strings"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
 )
 
 const MAX_NUM_PROCS = 10
@@ -35,17 +36,12 @@ func (m *TopProcsCollector) Init(config json.RawMessage) error {
 	var err error
 	m.name = "TopProcsCollector"
 	m.parallel = true
-	m.tags = map[string]string{
+	m.tags = map[string]string{"type": "node"}
-		"type": "node",
+	m.meta = map[string]string{"source": m.name, "group": "TopProcs"}
-	}
-	m.meta = map[string]string{
-		"source": m.name,
-		"group":  "TopProcs",
-	}
 	if len(config) > 0 {
 		err = json.Unmarshal(config, &m.config)
 		if err != nil {
-			return fmt.Errorf("%s Init(): json.Unmarshal() failed: %w", m.name, err)
+			return err
 		}
 	} else {
 		m.config.Num_procs = int(DEFAULT_NUM_PROCS)
@@ -53,13 +49,12 @@ func (m *TopProcsCollector) Init(config json.RawMessage) error {
 	if m.config.Num_procs <= 0 || m.config.Num_procs > MAX_NUM_PROCS {
 		return fmt.Errorf("num_procs option must be set in 'topprocs' config (range: 1-%d)", MAX_NUM_PROCS)
 	}
-	if err := m.setup(); err != nil {
+	m.setup()
-		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
-	}
 	command := exec.Command("ps", "-Ao", "comm", "--sort=-pcpu")
+	command.Wait()
 	_, err = command.Output()
 	if err != nil {
-		return fmt.Errorf("%s Init(): failed to get output from command: %w", m.name, err)
+		return errors.New("failed to execute command")
 	}
 	m.init = true
 	return nil
@@ -70,24 +65,17 @@ func (m *TopProcsCollector) Read(interval time.Duration, output chan lp.CCMessag
 		return
 	}
 	command := exec.Command("ps", "-Ao", "comm", "--sort=-pcpu")
+	command.Wait()
 	stdout, err := command.Output()
 	if err != nil {
-		cclog.ComponentError(
+		log.Print(m.name, err)
-			m.name,
-			fmt.Sprintf("Read(): Failed to read output from command \"%s\": %v", command.String(), err))
 		return
 	}
 
 	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(
+		y, err := lp.NewMessage(name, m.tags, m.meta, map[string]interface{}{"value": string(lines[i])}, time.Now())
-			name,
-			m.tags,
-			m.meta,
-			map[string]any{
-				"value": lines[i]},
-			time.Now())
 		if err == nil {
 			output <- y
 		}

docs/configuration.md

@@ -4,7 +4,7 @@ The configuration of the CC metric collector consists of five configuration file
 
 ## Global configuration
 
-The global file contains the paths to the other four files and some global options. You can find examples in `example_configs`.
+The global file contains the paths to the other four files and some global options. 
 
 ```json
 {

go.mod

@@ -1,45 +1,48 @@
 module github.com/ClusterCockpit/cc-metric-collector
 
-go 1.25.0
+go 1.23.4
+
+toolchain go1.23.7
 
 require (
-	github.com/ClusterCockpit/cc-lib/v2 v2.4.0
+	github.com/ClusterCockpit/cc-lib v0.1.1
 	github.com/ClusterCockpit/go-rocm-smi v0.3.0
-	github.com/NVIDIA/go-nvml v0.13.0-1
+	github.com/NVIDIA/go-nvml v0.12.0-2
-	github.com/PaesslerAG/gval v1.2.4
+	github.com/PaesslerAG/gval v1.2.2
-	github.com/fsnotify/fsnotify v1.9.0
+	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/influxdata/line-protocol v0.0.0-20210922203350-b1ad95c89adf
 	github.com/influxdata/line-protocol/v2 v2.2.1
-	github.com/tklauser/go-sysconf v0.3.16
+	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
 	golang.design/x/thread v0.0.0-20210122121316-335e9adffdf1
-	golang.org/x/sys v0.41.0
+	golang.org/x/exp v0.0.0-20250215185904-eff6e970281f
+	golang.org/x/sys v0.30.0
 )
 
 require (
+	github.com/ClusterCockpit/cc-backend v1.4.2 // indirect
+	github.com/ClusterCockpit/cc-units v0.4.0 // indirect
 	github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
-	github.com/expr-lang/expr v1.17.7 // indirect
+	github.com/expr-lang/expr v1.17.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
-	github.com/gorilla/mux v1.8.1 // indirect
+	github.com/klauspost/compress v1.17.9 // indirect
-	github.com/influxdata/influxdb-client-go/v2 v2.14.0 // indirect
-	github.com/influxdata/line-protocol v0.0.0-20210922203350-b1ad95c89adf // indirect
-	github.com/klauspost/compress v1.18.4 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
-	github.com/nats-io/nats.go v1.48.0 // indirect
+	github.com/nats-io/nkeys v0.4.9 // indirect
-	github.com/nats-io/nkeys v0.4.15 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
-	github.com/oapi-codegen/runtime v1.1.2 // indirect
+	github.com/oapi-codegen/runtime v1.1.1 // indirect
-	github.com/prometheus/client_golang v1.23.2 // indirect
+	github.com/prometheus/client_model v0.6.1 // indirect
-	github.com/prometheus/client_model v0.6.2 // indirect
+	github.com/prometheus/common v0.55.0 // indirect
-	github.com/prometheus/common v0.67.5 // indirect
+	github.com/prometheus/procfs v0.15.1 // indirect
-	github.com/prometheus/procfs v0.19.2 // indirect
 	github.com/santhosh-tekuri/jsonschema/v5 v5.3.1 // indirect
-	github.com/shopspring/decimal v1.4.0 // indirect
+	github.com/shopspring/decimal v1.3.1 // indirect
-	github.com/stmcginnis/gofish v0.20.0 // indirect
+	github.com/tklauser/numcpus v0.7.0 // indirect
-	github.com/tklauser/numcpus v0.11.0 // indirect
+	golang.org/x/crypto v0.35.0 // indirect
-	go.yaml.in/yaml/v2 v2.4.3 // indirect
+	golang.org/x/net v0.36.0 // indirect
-	golang.org/x/crypto v0.48.0 // indirect
+	google.golang.org/protobuf v1.35.2 // indirect
-	golang.org/x/exp v0.0.0-20260212183809-81e46e3db34a // indirect
-	golang.org/x/net v0.50.0 // indirect
-	google.golang.org/protobuf v1.36.11 // indirect
 )

go.sum

@@ -1,19 +1,21 @@
-github.com/ClusterCockpit/cc-lib/v2 v2.2.1 h1:iCVas+Jc61zFH5S2VG3H1sc7tsn+U4lOJwUYjYZEims=
+github.com/ClusterCockpit/cc-backend v1.4.2 h1:kTOzqkh9N0564N9nqQThnSs7TAfg8RLgvSm00e5HtIc=
-github.com/ClusterCockpit/cc-lib/v2 v2.2.1/go.mod h1:JuxMAuEOaLLNEnnL9U3ejha8kMvsSatLdKPZEgJw6iw=
+github.com/ClusterCockpit/cc-backend v1.4.2/go.mod h1:g8TNHXe4AXej26snu2//jO3mUF980elT93iV/k11O/c=
-github.com/ClusterCockpit/cc-lib/v2 v2.4.0 h1:OnZlvqSatg7yCQ2NtSR7AddpUVSiuSMZ8scF1a7nfOk=
+github.com/ClusterCockpit/cc-lib v0.1.0-beta.1 h1:dz9j0g2cod8+SMDjuoIY6ISpiHHeekhX6yQaeiwiwJw=
-github.com/ClusterCockpit/cc-lib/v2 v2.4.0/go.mod h1:JuxMAuEOaLLNEnnL9U3ejha8kMvsSatLdKPZEgJw6iw=
+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/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/NVIDIA/go-nvml v0.11.6-0/go.mod h1:hy7HYeQy335x6nEss0Ne3PYqleRa6Ct+VKD9RQ4nyFs=
-github.com/NVIDIA/go-nvml v0.13.0-1 h1:OLX8Jq3dONuPOQPC7rndB6+iDmDakw0XTYgzMxObkEw=
+github.com/NVIDIA/go-nvml v0.12.0-2 h1:Sg239yy7jmopu/cuvYauoMj9fOpcGMngxVxxS1EBXeY=
-github.com/NVIDIA/go-nvml v0.13.0-1/go.mod h1:+KNA7c7gIBH7SKSJ1ntlwkfN80zdx8ovl4hrK3LmPt4=
+github.com/NVIDIA/go-nvml v0.12.0-2/go.mod h1:7ruy85eOM73muOc/I37euONSwEyFqZsv5ED9AogD4G0=
-github.com/PaesslerAG/gval v1.2.4 h1:rhX7MpjJlcxYwL2eTTYIOBUyEKZ+A96T9vQySWkVUiU=
+github.com/PaesslerAG/gval v1.2.2 h1:Y7iBzhgE09IGTt5QgGQ2IdaYYYOU134YGHBThD+wm9E=
-github.com/PaesslerAG/gval v1.2.4/go.mod h1:XRFLwvmkTEdYziLdaCeCa5ImcGVrfQbeNUbVR+C6xac=
+github.com/PaesslerAG/gval v1.2.2/go.mod h1:XRFLwvmkTEdYziLdaCeCa5ImcGVrfQbeNUbVR+C6xac=
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-golang.org/x/crypto v0.47.0 h1:V6e3FRj+n4dbpw86FJ8Fv7XVOql7TEwpHapKoMJ/GO8=
+golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
-golang.org/x/crypto v0.47.0/go.mod h1:ff3Y9VzzKbwSSEzWqJsJVBnWmRwRSHt/6Op5n9bQc4A=
+golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
-golang.org/x/crypto v0.48.0 h1:/VRzVqiRSggnhY7gNRxPauEQ5Drw9haKdM0jqfcCFts=
+golang.org/x/crypto v0.35.0 h1:b15kiHdrGCHrP6LvwaQ3c03kgNhhiMgvlhxHQhmg2Xs=
-golang.org/x/crypto v0.48.0/go.mod h1:r0kV5h3qnFPlQnBSrULhlsRfryS2pmewsg+XfMgkVos=
+golang.org/x/crypto v0.35.0/go.mod h1:dy7dXNW32cAb/6/PRuTNsix8T+vJAqvuIy5Bli/x0YQ=
-golang.org/x/exp v0.0.0-20260112195511-716be5621a96 h1:Z/6YuSHTLOHfNFdb8zVZomZr7cqNgTJvA8+Qz75D8gU=
+golang.org/x/exp v0.0.0-20250215185904-eff6e970281f h1:oFMYAjX0867ZD2jcNiLBrI9BdpmEkvPyi5YrBGXbamg=
-golang.org/x/exp v0.0.0-20260112195511-716be5621a96/go.mod h1:nzimsREAkjBCIEFtHiYkrJyT+2uy9YZJB7H1k68CXZU=
+golang.org/x/exp v0.0.0-20250215185904-eff6e970281f/go.mod h1:BHOTPb3L19zxehTsLoJXVaTktb06DFgmdW6Wb9s8jqk=
-golang.org/x/exp v0.0.0-20260212183809-81e46e3db34a h1:ovFr6Z0MNmU7nH8VaX5xqw+05ST2uO1exVfZPVqRC5o=
+golang.org/x/net v0.31.0 h1:68CPQngjLL0r2AlUKiSxtQFKvzRVbnzLwMUn5SzcLHo=
-golang.org/x/exp v0.0.0-20260212183809-81e46e3db34a/go.mod h1:K79w1Vqn7PoiZn+TkNpx3BUWUQksGO3JcVX6qIjytmA=
+golang.org/x/net v0.31.0/go.mod h1:P4fl1q7dY2hnZFxEk4pPSkDHF+QqjitcnDjUQyMM+pM=
-golang.org/x/net v0.49.0 h1:eeHFmOGUTtaaPSGNmjBKpbng9MulQsJURQUAfUwY++o=
+golang.org/x/net v0.36.0 h1:vWF2fRbw4qslQsQzgFqZff+BItCvGFQqKzKIzx1rmoA=
-golang.org/x/net v0.49.0/go.mod h1:/ysNB2EvaqvesRkuLAyjI1ycPZlQHM3q01F02UY/MV8=
+golang.org/x/net v0.36.0/go.mod h1:bFmbeoIPfrw4sMHNhb4J9f6+tPziuGjq7Jk/38fxi1I=
-golang.org/x/net v0.50.0 h1:ucWh9eiCGyDR3vtzso0WMQinm2Dnt8cFMuQa9K33J60=
-golang.org/x/net v0.50.0/go.mod h1:UgoSli3F/pBgdJBHCTc+tp3gmrU4XswgGRgtnwWTfyM=
 golang.org/x/sys v0.0.0-20210122093101-04d7465088b8/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
+golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
-golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
+golang.org/x/sys v0.30.0 h1:QjkSwP/36a20jFYWkSue1YwXzLmsV5Gfq7Eiy72C1uc=
-golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
+golang.org/x/sys v0.30.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
+google.golang.org/protobuf v1.35.2 h1:8Ar7bF+apOIoThw1EdZl0p1oWvMqTHmpA2fRTyZO8io=
-google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
+google.golang.org/protobuf v1.35.2/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/metricAggregator/metricAggregator.go

@@ -10,17 +10,15 @@ package metricAggregator
 import (
 	"context"
 	"fmt"
-	"maps"
 	"math"
 	"os"
-	"slices"
 	"strings"
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
 
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 	topo "github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
 
 	"github.com/PaesslerAG/gval"
@@ -38,7 +36,7 @@ type MetricAggregatorIntervalConfig struct {
 
 type metricAggregator struct {
 	functions []*MetricAggregatorIntervalConfig
-	constants map[string]any
+	constants map[string]interface{}
 	language  gval.Language
 	output    chan lp.CCMessage
 }
@@ -86,7 +84,7 @@ var evaluables = struct {
 func (c *metricAggregator) Init(output chan lp.CCMessage) error {
 	c.output = output
 	c.functions = make([]*MetricAggregatorIntervalConfig, 0)
-	c.constants = make(map[string]any)
+	c.constants = make(map[string]interface{})
 
 	// add constants like hostname, numSockets, ... to constants list
 	// Set hostname
@@ -122,8 +120,10 @@ func (c *metricAggregator) Init(output chan lp.CCMessage) error {
 }
 
 func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics []lp.CCMessage) {
-	vars := make(map[string]any)
+	vars := make(map[string]interface{})
-	maps.Copy(vars, c.constants)
+	for k, v := range c.constants {
+		vars[k] = v
+	}
 	vars["starttime"] = starttime
 	vars["endtime"] = endtime
 	for _, f := range c.functions {
@@ -137,6 +137,7 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 		matches := make([]lp.CCMessage, 0)
 		for _, m := range metrics {
 			vars["metric"] = m
+			//value, err := gval.Evaluate(f.Condition, vars, c.language)
 			value, err := f.gvalCond.EvalBool(context.Background(), vars)
 			if err != nil {
 				cclog.ComponentError("MetricCache", "COLLECT", f.Name, "COND", f.Condition, ":", err.Error())
@@ -170,22 +171,22 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 		// Check, that only values of one type were collected
 		countValueTypes := 0
 		if len(valuesFloat64) > 0 {
-			countValueTypes++
+			countValueTypes += 1
 		}
 		if len(valuesFloat32) > 0 {
-			countValueTypes++
+			countValueTypes += 1
 		}
 		if len(valuesInt) > 0 {
-			countValueTypes++
+			countValueTypes += 1
 		}
 		if len(valuesInt32) > 0 {
-			countValueTypes++
+			countValueTypes += 1
 		}
 		if len(valuesInt64) > 0 {
-			countValueTypes++
+			countValueTypes += 1
 		}
 		if len(valuesBool) > 0 {
-			countValueTypes++
+			countValueTypes += 1
 		}
 		if countValueTypes > 1 {
 			cclog.ComponentError("MetricCache", "Collected values of different types")
@@ -262,15 +263,15 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 			var m lp.CCMessage
 			switch t := value.(type) {
 			case float64:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]any{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			case float32:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]any{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			case int:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]any{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			case int64:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]any{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			case string:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]any{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
 			default:
 				cclog.ComponentError("MetricCache", "Gval returned invalid type", t, "skipping metric", f.Name)
 			}
@@ -328,21 +329,18 @@ func (c *metricAggregator) AddAggregation(name, function, condition string, tags
 }
 
 func (c *metricAggregator) DeleteAggregation(name string) error {
-	i := slices.IndexFunc(
+	for i, agg := range c.functions {
-		c.functions,
+		if agg.Name == name {
-		func(agg *MetricAggregatorIntervalConfig) bool {
-			return agg.Name == name
-		})
-	if i == -1 {
-		return fmt.Errorf("no aggregation for metric name %s", name)
-	}
 			copy(c.functions[i:], c.functions[i+1:])
 			c.functions[len(c.functions)-1] = nil
 			c.functions = c.functions[:len(c.functions)-1]
 			return nil
+		}
+	}
+	return fmt.Errorf("no aggregation for metric name %s", name)
 }
 
-func (c *metricAggregator) AddConstant(name string, value any) {
+func (c *metricAggregator) AddConstant(name string, value interface{}) {
 	c.constants[name] = value
 }
 
@@ -350,11 +348,11 @@ func (c *metricAggregator) DelConstant(name string) {
 	delete(c.constants, name)
 }
 
-func (c *metricAggregator) AddFunction(name string, function func(args ...any) (any, error)) {
+func (c *metricAggregator) AddFunction(name string, function func(args ...interface{}) (interface{}, error)) {
 	c.language = gval.NewLanguage(c.language, gval.Function(name, function))
 }
 
-func EvalBoolCondition(condition string, params map[string]any) (bool, error) {
+func EvalBoolCondition(condition string, params map[string]interface{}) (bool, error) {
 	evaluables.mutex.Lock()
 	evaluable, ok := evaluables.mapping[condition]
 	evaluables.mutex.Unlock()

internal/metricAggregator/metricAggregatorFunctions.go

@@ -11,10 +11,10 @@ import (
 	"errors"
 	"fmt"
 	"regexp"
-	"slices"
-	"strconv"
 	"strings"
 
+	"golang.org/x/exp/slices"
+
 	topo "github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
 )
 
@@ -34,7 +34,7 @@ func sumAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error
 }
 
 // Sum up values
-func sumfunc(args any) (any, error) {
+func sumfunc(args interface{}) (interface{}, error) {
 
 	var err error
 	switch values := args.(type) {
@@ -63,7 +63,7 @@ func minAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error
 }
 
 // Get the minimum value
-func minfunc(args any) (any, error) {
+func minfunc(args interface{}) (interface{}, error) {
 	switch values := args.(type) {
 	case []float64:
 		return minAnyType(values)
@@ -84,12 +84,12 @@ func avgAnyType[T float64 | float32 | int | int32 | int64](values []T) (float64,
 	if len(values) == 0 {
 		return 0.0, errors.New("average function requires at least one argument")
 	}
-	sum, err := sumAnyType(values)
+	sum, err := sumAnyType[T](values)
 	return float64(sum) / float64(len(values)), err
 }
 
 // Get the average or mean value
-func avgfunc(args any) (any, error) {
+func avgfunc(args interface{}) (interface{}, error) {
 	switch values := args.(type) {
 	case []float64:
 		return avgAnyType(values)
@@ -114,7 +114,7 @@ func maxAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error
 }
 
 // Get the maximum value
-func maxfunc(args any) (any, error) {
+func maxfunc(args interface{}) (interface{}, error) {
 	switch values := args.(type) {
 	case []float64:
 		return maxAnyType(values)
@@ -146,7 +146,7 @@ func medianAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, er
 }
 
 // Get the median value
-func medianfunc(args any) (any, error) {
+func medianfunc(args interface{}) (interface{}, error) {
 	switch values := args.(type) {
 	case []float64:
 		return medianAnyType(values)
@@ -167,9 +167,9 @@ func medianfunc(args any) (any, error) {
  * Get number of values in list. Returns always an int
  */
 
-func lenfunc(args any) (any, error) {
+func lenfunc(args interface{}) (interface{}, error) {
 	var err error = nil
-	length := 0
+	var length int = 0
 	switch values := args.(type) {
 	case []float64:
 		length = len(values)
@@ -181,7 +181,13 @@ func lenfunc(args any) (any, error) {
 		length = len(values)
 	case []int32:
 		length = len(values)
-	case float64, float32, int, int64:
+	case float64:
+		err = errors.New("function 'len' can only be applied on arrays and strings")
+	case float32:
+		err = errors.New("function 'len' can only be applied on arrays and strings")
+	case int:
+		err = errors.New("function 'len' can only be applied on arrays and strings")
+	case int64:
 		err = errors.New("function 'len' can only be applied on arrays and strings")
 	case string:
 		length = len(values)
@@ -191,13 +197,13 @@ func lenfunc(args any) (any, error) {
 
 /*
  * Check if a values is in a list
- * In contrast to most of the other functions, this one is an infix operator for
+ * In constrast to most of the other functions, this one is an infix operator for
  * - substring matching: `"abc" in "abcdef"` -> true
  * - substring matching with int casting: `3 in "abd3"` -> true
  * - search for an int in an int list: `3 in getCpuList()` -> true (if you have more than 4 CPU hardware threads)
  */
 
-func infunc(a any, b any) (any, error) {
+func infunc(a interface{}, b interface{}) (interface{}, error) {
 	switch match := a.(type) {
 	case string:
 		switch total := b.(type) {
@@ -207,9 +213,13 @@ func infunc(a any, b any) (any, error) {
 	case int:
 		switch total := b.(type) {
 		case []int:
-			return slices.Contains(total, match), nil
+			for _, x := range total {
+				if x == match {
+					return true, nil
+				}
+			}
 		case string:
-			smatch := strconv.Itoa(match)
+			smatch := fmt.Sprintf("%d", match)
 			return strings.Contains(total, smatch), nil
 		}
 
@@ -223,12 +233,12 @@ func infunc(a any, b any) (any, error) {
  * format keys \d = %d, \w = %d, ... Not sure how to fix this
  */
 
-func matchfunc(args ...any) (any, error) {
+func matchfunc(args ...interface{}) (interface{}, error) {
 	switch match := args[0].(type) {
 	case string:
 		switch total := args[1].(type) {
 		case string:
-			smatch := strings.ReplaceAll(match, "%", "\\")
+			smatch := strings.Replace(match, "%", "\\", -1)
 			regex, err := regexp.Compile(smatch)
 			if err != nil {
 				return false, err
@@ -245,7 +255,7 @@ func matchfunc(args ...any) (any, error) {
  */
 
 // for a given cpuid, it returns the core id
-func getCpuCoreFunc(args any) (any, error) {
+func getCpuCoreFunc(args interface{}) (interface{}, error) {
 	switch cpuid := args.(type) {
 	case int:
 		return topo.GetHwthreadCore(cpuid), nil
@@ -254,7 +264,7 @@ func getCpuCoreFunc(args any) (any, error) {
 }
 
 // for a given cpuid, it returns the socket id
-func getCpuSocketFunc(args any) (any, error) {
+func getCpuSocketFunc(args interface{}) (interface{}, error) {
 	switch cpuid := args.(type) {
 	case int:
 		return topo.GetHwthreadSocket(cpuid), nil
@@ -263,7 +273,7 @@ func getCpuSocketFunc(args any) (any, error) {
 }
 
 // for a given cpuid, it returns the id of the NUMA node
-func getCpuNumaDomainFunc(args any) (any, error) {
+func getCpuNumaDomainFunc(args interface{}) (interface{}, error) {
 	switch cpuid := args.(type) {
 	case int:
 		return topo.GetHwthreadNumaDomain(cpuid), nil
@@ -272,7 +282,7 @@ func getCpuNumaDomainFunc(args any) (any, error) {
 }
 
 // for a given cpuid, it returns the id of the CPU die
-func getCpuDieFunc(args any) (any, error) {
+func getCpuDieFunc(args interface{}) (interface{}, error) {
 	switch cpuid := args.(type) {
 	case int:
 		return topo.GetHwthreadDie(cpuid), nil
@@ -281,7 +291,7 @@ func getCpuDieFunc(args any) (any, error) {
 }
 
 // for a given core id, it returns the list of cpuids
-func getCpuListOfCoreFunc(args any) (any, error) {
+func getCpuListOfCoreFunc(args interface{}) (interface{}, error) {
 	cpulist := make([]int, 0)
 	switch in := args.(type) {
 	case int:
@@ -295,7 +305,7 @@ func getCpuListOfCoreFunc(args any) (any, error) {
 }
 
 // for a given socket id, it returns the list of cpuids
-func getCpuListOfSocketFunc(args any) (any, error) {
+func getCpuListOfSocketFunc(args interface{}) (interface{}, error) {
 	cpulist := make([]int, 0)
 	switch in := args.(type) {
 	case int:
@@ -309,7 +319,7 @@ func getCpuListOfSocketFunc(args any) (any, error) {
 }
 
 // for a given id of a NUMA domain, it returns the list of cpuids
-func getCpuListOfNumaDomainFunc(args any) (any, error) {
+func getCpuListOfNumaDomainFunc(args interface{}) (interface{}, error) {
 	cpulist := make([]int, 0)
 	switch in := args.(type) {
 	case int:
@@ -323,7 +333,7 @@ func getCpuListOfNumaDomainFunc(args any) (any, error) {
 }
 
 // for a given CPU die id, it returns the list of cpuids
-func getCpuListOfDieFunc(args any) (any, error) {
+func getCpuListOfDieFunc(args interface{}) (interface{}, error) {
 	cpulist := make([]int, 0)
 	switch in := args.(type) {
 	case int:
@@ -337,14 +347,14 @@ func getCpuListOfDieFunc(args any) (any, error) {
 }
 
 // wrapper function to get a list of all cpuids of the node
-func getCpuListOfNode() (any, error) {
+func getCpuListOfNode() (interface{}, error) {
 	return topo.HwthreadList(), nil
 }
 
 // helper function to get the cpuid list for a CCMetric type tag set (type and type-id)
 // since there is no access to the metric data in the function, is should be called like
 // `getCpuListOfType()`
-func getCpuListOfType(args ...any) (any, error) {
+func getCpuListOfType(args ...interface{}) (interface{}, error) {
 	cpulist := make([]int, 0)
 	switch typ := args[0].(type) {
 	case string:

internal/metricRouter/metricCache.go

@@ -11,9 +11,9 @@ import (
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
 
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
 	agg "github.com/ClusterCockpit/cc-metric-collector/internal/metricAggregator"
 	mct "github.com/ClusterCockpit/cc-metric-collector/pkg/multiChanTicker"
 )
@@ -51,7 +51,7 @@ type MetricCache interface {
 }
 
 func (c *metricCache) Init(output chan lp.CCMessage, ticker mct.MultiChanTicker, wg *sync.WaitGroup, numPeriods int) error {
-	var err error
+	var err error = nil
 	c.done = make(chan bool)
 	c.wg = wg
 	c.ticker = ticker
@@ -102,7 +102,9 @@ func (c *metricCache) Start() {
 		return oldPeriod
 	}
 
-	c.wg.Go(func() {
+	c.wg.Add(1)
+	go func() {
+		defer c.wg.Done()
 		for {
 			select {
 			case <-c.done:
@@ -122,7 +124,7 @@ func (c *metricCache) Start() {
 				}
 			}
 		}
-	})
+	}()
 	cclog.ComponentDebug("MetricCache", "START")
 }
 
@@ -135,12 +137,12 @@ func (c *metricCache) Add(metric lp.CCMessage) {
 		p := c.intervals[c.curPeriod]
 		if p.numMetrics < p.sizeMetrics {
 			p.metrics[p.numMetrics] = metric
-			p.numMetrics++
+			p.numMetrics = p.numMetrics + 1
 			p.stopstamp = metric.Time()
 		} else {
 			p.metrics = append(p.metrics, metric)
-			p.numMetrics++
+			p.numMetrics = p.numMetrics + 1
-			p.sizeMetrics++
+			p.sizeMetrics = p.sizeMetrics + 1
 			p.stopstamp = metric.Time()
 		}
 		c.lock.Unlock()
@@ -159,8 +161,8 @@ func (c *metricCache) DeleteAggregation(name string) error {
 // 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) {
-	start := time.Now()
+	var start time.Time = time.Now()
-	stop := time.Now()
+	var stop time.Time = time.Now()
 	var metrics []lp.CCMessage
 	if index >= 0 && index < c.numPeriods {
 		pindex := c.curPeriod - index

internal/metricRouter/metricRouter.go

@@ -10,16 +10,15 @@ package metricRouter
 import (
 	"encoding/json"
 	"fmt"
-	"maps"
 	"os"
 	"strings"
 	"sync"
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
 
-	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
+	lp "github.com/ClusterCockpit/cc-lib/ccMessage"
-	mp "github.com/ClusterCockpit/cc-lib/v2/messageProcessor"
+	mp "github.com/ClusterCockpit/cc-lib/messageProcessor"
 	agg "github.com/ClusterCockpit/cc-metric-collector/internal/metricAggregator"
 	mct "github.com/ClusterCockpit/cc-metric-collector/pkg/multiChanTicker"
 )
@@ -108,8 +107,10 @@ func (r *metricRouter) Init(ticker mct.MultiChanTicker, wg *sync.WaitGroup, rout
 		cclog.ComponentError("MetricRouter", err.Error())
 		return err
 	}
-	r.maxForward = max(1, r.config.MaxForward)
+	r.maxForward = 1
-
+	if r.config.MaxForward > r.maxForward {
+		r.maxForward = r.config.MaxForward
+	}
 	if r.config.NumCacheIntervals > 0 {
 		r.cache, err = NewCache(r.cache_input, r.ticker, &r.cachewg, r.config.NumCacheIntervals)
 		if err != nil {
@@ -117,80 +118,60 @@ func (r *metricRouter) Init(ticker mct.MultiChanTicker, wg *sync.WaitGroup, rout
 			return err
 		}
 		for _, agg := range r.config.IntervalAgg {
-			err = r.cache.AddAggregation(agg.Name, agg.Function, agg.Condition, agg.Tags, agg.Meta)
+			r.cache.AddAggregation(agg.Name, agg.Function, agg.Condition, agg.Tags, agg.Meta)
-			if err != nil {
-				return fmt.Errorf("MetricCache AddAggregation() failed: %w", err)
-			}
 		}
 	}
 	p, err := mp.NewMessageProcessor()
 	if err != nil {
-		return fmt.Errorf("MessageProcessor NewMessageProcessor() failed: %w", err)
+		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("MessageProcessor FromConfigJSON() failed: %w", err)
+			return fmt.Errorf("failed parsing JSON for message processor: %v", err.Error())
 		}
 	}
 	for _, mname := range r.config.DropMetrics {
-		err = r.mp.AddDropMessagesByName(mname)
+		r.mp.AddDropMessagesByName(mname)
-		if err != nil {
-			return fmt.Errorf("MessageProcessor AddDropMessagesByName() failed: %w", err)
-		}
 	}
 	for _, cond := range r.config.DropMetricsIf {
-		err = r.mp.AddDropMessagesByCondition(cond)
+		r.mp.AddDropMessagesByCondition(cond)
-		if err != nil {
-			return fmt.Errorf("MessageProcessor AddDropMessagesByCondition() failed: %w", err)
-		}
 	}
 	for _, data := range r.config.AddTags {
 		cond := data.Condition
 		if cond == "*" {
 			cond = "true"
 		}
-		err = r.mp.AddAddTagsByCondition(cond, data.Key, data.Value)
+		r.mp.AddAddTagsByCondition(cond, data.Key, data.Value)
-		if err != nil {
-			return fmt.Errorf("MessageProcessor AddAddTagsByCondition() failed: %w", err)
-		}
 	}
 	for _, data := range r.config.DelTags {
 		cond := data.Condition
 		if cond == "*" {
 			cond = "true"
 		}
-		err = r.mp.AddDeleteTagsByCondition(cond, data.Key, data.Value)
+		r.mp.AddDeleteTagsByCondition(cond, data.Key, data.Value)
-		if err != nil {
-			return fmt.Errorf("MessageProcessor AddDeleteTagsByCondition() failed: %w", err)
-		}
 	}
 	for oldname, newname := range r.config.RenameMetrics {
-		err = r.mp.AddRenameMetricByName(oldname, newname)
+		r.mp.AddRenameMetricByName(oldname, newname)
-		if err != nil {
-			return fmt.Errorf("MessageProcessor AddRenameMetricByName() failed: %w", err)
-		}
 	}
 	for metricName, prefix := range r.config.ChangeUnitPrefix {
-		err = r.mp.AddChangeUnitPrefix(fmt.Sprintf("name == '%s'", metricName), prefix)
+		r.mp.AddChangeUnitPrefix(fmt.Sprintf("name == '%s'", metricName), prefix)
-		if err != nil {
-			return fmt.Errorf("MessageProcessor AddChangeUnitPrefix() failed: %w", err)
-		}
 	}
 	r.mp.SetNormalizeUnits(r.config.NormalizeUnits)
 
-	err = r.mp.AddAddTagsByCondition("true", r.config.HostnameTagName, r.hostname)
+	r.mp.AddAddTagsByCondition("true", r.config.HostnameTagName, r.hostname)
-	if err != nil {
-		return fmt.Errorf("MessageProcessor AddAddTagsByCondition() failed: %w", err)
-	}
 
+	// 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]any {
+func getParamMap(point lp.CCMessage) map[string]interface{} {
-	params := make(map[string]any)
+	params := make(map[string]interface{})
 	params["metric"] = point
 	params["name"] = point.Name()
 	for key, value := range point.Tags() {
@@ -199,12 +180,14 @@ func getParamMap(point lp.CCMessage) map[string]any {
 	for key, value := range point.Meta() {
 		params[key] = value
 	}
-	maps.Copy(params, point.Fields())
+	for key, value := range point.Fields() {
+		params[key] = value
+	}
 	params["timestamp"] = point.Time()
 	return params
 }
 
-// DoAddTags adds a tag when condition is fulfilled
+// DoAddTags adds a tag when condition is fullfiled
 func (r *metricRouter) DoAddTags(point lp.CCMessage) {
 	var conditionMatches bool
 	for _, m := range r.config.AddTags {
@@ -226,6 +209,83 @@ 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)
+// 		}
+// 	}
+// }
+
+// Conditional test whether a metric should be dropped
+// func (r *metricRouter) dropMetric(point lp.CCMessage) bool {
+// 	// Simple drop check
+// 	if conditionMatches, ok := r.config.dropMetrics[point.Name()]; ok {
+// 		return conditionMatches
+// 	}
+
+// 	// Checking the dropping conditions
+// 	for _, m := range r.config.DropMetricsIf {
+// 		conditionMatches, err := agg.EvalBoolCondition(m, getParamMap(point))
+// 		if err != nil {
+// 			cclog.ComponentError("MetricRouter", err.Error())
+// 			conditionMatches = false
+// 		}
+// 		if conditionMatches {
+// 			return conditionMatches
+// 		}
+// 	}
+
+// 	// No dropping condition met
+// 	return false
+// }
+
+// func (r *metricRouter) prepareUnit(point lp.CCMessage) bool {
+// 	if r.config.NormalizeUnits {
+// 		if in_unit, ok := point.GetMeta("unit"); ok {
+// 			u := units.NewUnit(in_unit)
+// 			if u.Valid() {
+// 				point.AddMeta("unit", u.Short())
+// 			}
+// 		}
+// 	}
+// 	if newP, ok := r.config.ChangeUnitPrefix[point.Name()]; ok {
+
+// 		newPrefix := units.NewPrefix(newP)
+
+// 		if in_unit, ok := point.GetMeta("unit"); ok && newPrefix != units.InvalidPrefix {
+// 			u := units.NewUnit(in_unit)
+// 			if u.Valid() {
+// 				cclog.ComponentDebug("MetricRouter", "Change prefix to", newP, "for metric", point.Name())
+// 				conv, out_unit := units.GetUnitPrefixFactor(u, newPrefix)
+// 				if conv != nil && out_unit.Valid() {
+// 					if val, ok := point.GetField("value"); ok {
+// 						point.AddField("value", conv(val))
+// 						point.AddMeta("unit", out_unit.Short())
+// 					}
+// 				}
+// 			}
+
+// 		}
+// 	}
+
+// 	return true
+// }
+
 // Start starts the metric router
 func (r *metricRouter) Start() {
 	// start timer if configured
@@ -241,7 +301,28 @@ func (r *metricRouter) Start() {
 		cclog.ComponentDebug("MetricRouter", "DONE")
 	}
 
-	// Forward message received from collector channel
+	// 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)
+	// 	}
+
+	// 	r.prepareUnit(point)
+
+	// 	for _, o := range r.outputs {
+	// 		o <- point
+	// 	}
+	// }
+
+	// Foward message received from collector channel
 	coll_forward := func(p lp.CCMessage) {
 		// receive from metric collector
 		//p.AddTag(r.config.HostnameTagName, r.hostname)
@@ -254,6 +335,11 @@ func (r *metricRouter) Start() {
 				o <- m
 			}
 		}
+		// if !r.dropMetric(p) {
+		// 	for _, o := range r.outputs {
+		// 		o <- point
+		// 	}
+		// }
 		// even if the metric is dropped, it is stored in the cache for
 		// aggregations
 		if r.config.NumCacheIntervals > 0 {
@@ -273,6 +359,9 @@ func (r *metricRouter) Start() {
 				o <- m
 			}
 		}
+		// if !r.dropMetric(p) {
+		// 	forward(p)
+		// }
 	}
 
 	// Forward message received from cache channel
@@ -291,7 +380,9 @@ func (r *metricRouter) Start() {
 		r.cache.Start()
 	}
 
-	r.wg.Go(func() {
+	r.wg.Add(1)
+	go func() {
+		defer r.wg.Done()
 
 		for {
 			select {
@@ -322,7 +413,7 @@ func (r *metricRouter) Start() {
 				}
 			}
 		}
-	})
+	}()
 	cclog.ComponentDebug("MetricRouter", "STARTED")
 }
 

pkg/ccTopology/ccTopology.go

@@ -13,11 +13,11 @@ import (
 	"os"
 	"path/filepath"
 	"regexp"
-	"slices"
 	"strconv"
 	"strings"
 
-	cclogger "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclogger "github.com/ClusterCockpit/cc-lib/ccLogger"
+	"golang.org/x/exp/slices"
 )
 
 const SYSFS_CPUBASE = `/sys/devices/system/cpu`
@@ -51,13 +51,14 @@ var cache struct {
 func fileToInt(path string) int {
 	buffer, err := os.ReadFile(path)
 	if err != nil {
-		cclogger.ComponentError("ccTopology", fmt.Sprintf("fileToInt(): Reading \"%s\": %v", path, err))
+		log.Print(err)
+		cclogger.ComponentError("ccTopology", "fileToInt", "Reading", path, ":", err.Error())
 		return -1
 	}
 	stringBuffer := strings.TrimSpace(string(buffer))
 	id, err := strconv.Atoi(stringBuffer)
 	if err != nil {
-		cclogger.ComponentError("ccTopology", fmt.Sprintf("fileToInt(): Parsing \"%s\": %v", stringBuffer, err))
+		cclogger.ComponentError("ccTopology", "fileToInt", "Parsing", path, ":", stringBuffer, err.Error())
 		return -1
 	}
 	return id
@@ -79,7 +80,7 @@ func fileToList(path string) []int {
 	// Create list
 	list := make([]int, 0)
 	stringBuffer := strings.TrimSpace(string(buffer))
-	for valueRangeString := range strings.SplitSeq(stringBuffer, ",") {
+	for _, valueRangeString := range strings.Split(stringBuffer, ",") {
 		valueRange := strings.Split(valueRangeString, "-")
 		switch len(valueRange) {
 		case 1:
@@ -303,19 +304,20 @@ func GetTypeList(topology_type string) []int {
 }
 
 func GetTypeId(hwt HwthreadEntry, topology_type string) (int, error) {
+	var err error = nil
 	switch topology_type {
 	case "node":
-		return 0, nil
+		return 0, err
 	case "socket":
-		return hwt.Socket, nil
+		return hwt.Socket, err
 	case "die":
-		return hwt.Die, nil
+		return hwt.Die, err
 	case "memoryDomain":
-		return hwt.NumaDomain, nil
+		return hwt.NumaDomain, err
 	case "core":
-		return hwt.Core, nil
+		return hwt.Core, err
 	case "hwthread":
-		return hwt.CpuID, nil
+		return hwt.CpuID, err
 	}
 	return -1, fmt.Errorf("unknown topology type '%s'", topology_type)
 }

pkg/multiChanTicker/multiChanTicker.go

@@ -10,7 +10,7 @@ package multiChanTicker
 import (
 	"time"
 
-	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
+	cclog "github.com/ClusterCockpit/cc-lib/ccLogger"
 )
 
 type multiChanTicker struct {
@@ -21,7 +21,7 @@ type multiChanTicker struct {
 
 type MultiChanTicker interface {
 	Init(duration time.Duration)
-	AddChannel(channel chan time.Time)
+	AddChannel(chan time.Time)
 	Close()
 }
 

scripts/cc-metric-collector.deb.control

@@ -1,6 +1,4 @@
 Package: cc-metric-collector
-Section: misc
-Priority: optional
 Version: {VERSION}
 Installed-Size: {INSTALLED_SIZE}
 Architecture: {ARCH}

scripts/cc-metric-collector.spec

@@ -30,11 +30,11 @@ make
 
 %install
 install -Dpm 0750 %{name} %{buildroot}%{_bindir}/%{name}
-install -Dpm 0600 example-configs/config.json %{buildroot}%{_sysconfdir}/%{name}/%{name}.json
+install -Dpm 0600 config.json %{buildroot}%{_sysconfdir}/%{name}/%{name}.json
-install -Dpm 0600 example-configs/collectors.json %{buildroot}%{_sysconfdir}/%{name}/collectors.json
+install -Dpm 0600 collectors.json %{buildroot}%{_sysconfdir}/%{name}/collectors.json
-install -Dpm 0600 example-configs/sinks.json %{buildroot}%{_sysconfdir}/%{name}/sinks.json
+install -Dpm 0600 sinks.json %{buildroot}%{_sysconfdir}/%{name}/sinks.json
-install -Dpm 0600 example-configs/receivers.json %{buildroot}%{_sysconfdir}/%{name}/receivers.json
+install -Dpm 0600 receivers.json %{buildroot}%{_sysconfdir}/%{name}/receivers.json
-install -Dpm 0600 example-configs/router.json %{buildroot}%{_sysconfdir}/%{name}/router.json
+install -Dpm 0600 router.json %{buildroot}%{_sysconfdir}/%{name}/router.json
 install -Dpm 0644 scripts/%{name}.service %{buildroot}%{_unitdir}/%{name}.service
 install -Dpm 0600 scripts/%{name}.config %{buildroot}%{_sysconfdir}/default/%{name}
 install -Dpm 0644 scripts/%{name}.sysusers %{buildroot}%{_sysusersdir}/%{name}.conf

scripts/likwid_perfgroup_to_cc_config.py

@@ -44,8 +44,6 @@ def group_to_json(groupfile):
                 scope = "socket"
             if "PWR" in calc:
                 scope = "socket"
-            if "UMC" in calc:
-                scope = "socket"
 
             m = {"name" : metric, "calc": calc, "type" : scope, "publish" : True}
             metrics.append(m)