Add safe.directory to Release action

* Add cpu_used (all-cpu_idle) to CpustatCollector

* Update to line-protocol/v2

* Update runonce.yml with Golang 1.20

* Update fsnotify in LIKWID Collector

* Use not a pointer to line-protocol.Encoder

* Simplify Makefile

* Use only as many arguments as required

* Allow sum function to handle non float types

* Allow values to be a slice of type float64, float32, int, int64, int32, bool

* Use generic function to simplify code

* Add missing case for type []int32

* Use generic function to compute minimum

* Use generic function to compute maximum

* Use generic function to compute average

* Add error value to sumAnyType

* Use generic function to compute median

* For older versions of go slices is not part of the installation

* Remove old entries from go.sum

* Use simpler sort function

* Compute metrics ib_total and ib_total_pkts

* Add aggregated metrics.
Add missing units

* Update likwidMetric.go

Fixes a potential bug when `fsnotify.NewWatcher()` fails with an error

* Completly avoid memory allocations in infinibandMetric read()

* Fixed initialization: Initalization and measurements should run in the same thread

---------

Co-authored-by: Holger Obermaier <40787752+ho-ob@users.noreply.github.com>

.github/workflows/Release.yml

@@ -51,7 +51,9 @@ jobs:
 
     - name: RPM build MetricCollector
       id: rpmbuild
-      run: make RPM
+      run: |
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+          make RPM
 
     # AlmaLinux 8.5 is a derivate of RedHat Enterprise Linux 8 (UBI8),
     # so the created RPM both contain the substring 'el8' in the RPM file names
@@ -119,7 +121,9 @@ jobs:
 
     - name: RPM build MetricCollector
       id: rpmbuild
-      run: make RPM
+      run: |
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
+          make RPM
 
     # See: https://github.com/actions/upload-artifact
     - name: Save RPM as artifact
@@ -168,6 +172,7 @@ jobs:
       id: dpkg-build
       run: |
           export PATH=/usr/local/go/bin:/usr/local/go/pkg/tool/linux_amd64:$PATH
+          git config --global --add safe.directory /__w/cc-metric-collector/cc-metric-collector
           make DEB
     - name: Rename DEB (add '_ubuntu20.04')
       id: debrename

.github/workflows/runonce.yml

@@ -58,3 +58,29 @@ jobs:
 
     - name: Run MetricCollector once
       run: ./cc-metric-collector --once --config .github/ci-config.json
+
+  #
+  # Job build-1-20
+  # Build on latest Ubuntu using golang version 1.20
+  #
+  build-1-20:
+    runs-on: ubuntu-latest
+    steps:
+    # See: https://github.com/marketplace/actions/checkout
+    # Checkout git repository and submodules
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        submodules: recursive
+
+    # See: https://github.com/marketplace/actions/setup-go-environment
+    - name: Setup Golang
+      uses: actions/setup-go@v3
+      with:
+        go-version: '1.20'
+
+    - name: Build MetricCollector
+      run: make
+
+    - name: Run MetricCollector once
+      run: ./cc-metric-collector --once --config .github/ci-config.json

.zenodo.json

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

Makefile

@@ -22,7 +22,7 @@ GOBIN = $(shell which go)
 .PHONY: all
 all: $(APP)
 
-$(APP): $(GOSRC)
+$(APP): $(GOSRC) go.mod
 	make -C collectors
 	$(GOBIN) get
 	$(GOBIN) build -o $(APP) $(GOSRC_APP)
@@ -84,7 +84,7 @@ RPM: scripts/cc-metric-collector.spec
 	@COMMITISH="HEAD"
 	@VERS=$$(git describe --tags $${COMMITISH})
 	@VERS=$${VERS#v}
-	@VERS=$$(echo $$VERS | sed -e s+'-'+'_'+g)
+	@VERS=$$(echo $${VERS} | sed -e s+'-'+'_'+g)
 	@eval $$(rpmspec --query --queryformat "NAME='%{name}' VERSION='%{version}' RELEASE='%{release}' NVR='%{NVR}' NVRA='%{NVRA}'" --define="VERS $${VERS}" "$${SPECFILE}")
 	@PREFIX="$${NAME}-$${VERSION}"
 	@FORMAT="tar.gz"
@@ -96,10 +96,8 @@ RPM: scripts/cc-metric-collector.spec
 	@if [[ "$${GITHUB_ACTIONS}" == true ]]; then
 	@     RPMFILE="$${RPMDIR}/$${ARCH}/$${NVRA}.rpm"
 	@     SRPMFILE="$${SRPMDIR}/$${NVR}.src.rpm"
-	@     echo "RPM: $${RPMFILE}"
-	@     echo "SRPM: $${SRPMFILE}"
-	@     echo "::set-output name=SRPM::$${SRPMFILE}"
-	@     echo "::set-output name=RPM::$${RPMFILE}"
+	@     echo "SRPM=$${SRPMFILE}" >> $${GITHUB_OUTPUT}
+	@     echo "RPM=$${RPMFILE}" >> $${GITHUB_OUTPUT}
 	@fi
 
 .PHONY: DEB
@@ -108,21 +106,24 @@ DEB: scripts/cc-metric-collector.deb.control $(APP)
 	@WORKSPACE=$${PWD}/.dpkgbuild
 	@DEBIANDIR=$${WORKSPACE}/debian
 	@DEBIANBINDIR=$${WORKSPACE}/DEBIAN
-	@mkdir --parents --verbose $$WORKSPACE $$DEBIANBINDIR
+	@mkdir --parents --verbose $${WORKSPACE} $${DEBIANBINDIR}
 	#@mkdir --parents --verbose $$DEBIANDIR
 	@CONTROLFILE="$${BASEDIR}/scripts/cc-metric-collector.deb.control"
 	@COMMITISH="HEAD"
 	@VERS=$$(git describe --tags --abbrev=0 $${COMMITISH})
+	@if [ -z "$${VERS}" ]; then VERS=${GITHUB_REF_NAME}; fi
 	@VERS=$${VERS#v}
-	@VERS=$$(echo $$VERS | sed -e s+'-'+'_'+g)
 	@ARCH=$$(uname -m)
-	@ARCH=$$(echo $$ARCH | sed -e s+'_'+'-'+g)
+	@ARCH=$$(echo $${ARCH} | sed -e s+'_'+'-'+g)
+	@if [ "$${ARCH}" = "x86-64" ]; then ARCH=amd64; fi
 	@PREFIX="$${NAME}-$${VERSION}_$${ARCH}"
-	@SIZE_BYTES=$$(du -bcs --exclude=.dpkgbuild "$$WORKSPACE"/ | awk '{print $$1}' | head -1 | sed -e 's/^0\+//')
-	@SIZE="$$(awk -v size="$$SIZE_BYTES" 'BEGIN {print (size/1024)+1}' | awk '{print int($$0)}')"
-	#@sed -e s+"{VERSION}"+"$$VERS"+g -e s+"{INSTALLED_SIZE}"+"$$SIZE"+g -e s+"{ARCH}"+"$$ARCH"+g $$CONTROLFILE > $${DEBIANDIR}/control
-	@sed -e s+"{VERSION}"+"$$VERS"+g -e s+"{INSTALLED_SIZE}"+"$$SIZE"+g -e s+"{ARCH}"+"$$ARCH"+g $$CONTROLFILE > $${DEBIANBINDIR}/control
+	@SIZE_BYTES=$$(du -bcs --exclude=.dpkgbuild "$${WORKSPACE}"/ | awk '{print $$1}' | head -1 | sed -e 's/^0\+//')
+	@SIZE="$$(awk -v size="$${SIZE_BYTES}" 'BEGIN {print (size/1024)+1}' | awk '{print int($$0)}')"
+	@sed -e s+"{VERSION}"+"$${VERS}"+g -e s+"{INSTALLED_SIZE}"+"$${SIZE}"+g -e s+"{ARCH}"+"$${ARCH}"+g $${CONTROLFILE} > $${DEBIANBINDIR}/control
 	@make PREFIX=$${WORKSPACE} install
 	@DEB_FILE="cc-metric-collector_$${VERS}_$${ARCH}.deb"
-	@dpkg-deb -b $${WORKSPACE} "$$DEB_FILE"
+	@dpkg-deb -b $${WORKSPACE} "$${DEB_FILE}"
+	@if [ "$${GITHUB_ACTIONS}" = "true" ]; then
+	@     echo "DEB=$${DEB_FILE}" >> $${GITHUB_OUTPUT}
+	@fi
 	@rm -r "$${WORKSPACE}"

README.md

@@ -8,6 +8,10 @@ There is a single timer loop that triggers all collectors serially, collects the
 
 The receiver runs as a go routine side-by-side with the timer loop and asynchronously forwards received metrics to the sink.
 
+
+[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.7438287.svg)](https://doi.org/10.5281/zenodo.7438287)
+
+
 # Configuration
 
 Configuration is implemented using a single json document that is distributed over network and may be persisted as file.

collectors/Makefile

@@ -1,31 +1,33 @@
 # LIKWID version
-LIKWID_VERSION = 5.2.1
-LIKWID_INSTALLED_FOLDER=$(shell dirname $(shell which likwid-topology 2>/dev/null) 2>/dev/null)
+LIKWID_VERSION := 5.2.2
+LIKWID_INSTALLED_FOLDER := $(shell dirname $$(which likwid-topology 2>/dev/null) 2>/dev/null)
 
-LIKWID_FOLDER="$(shell pwd)/likwid"
+LIKWID_FOLDER := $(CURDIR)/likwid
 
-all: $(LIKWID_FOLDER)/likwid.h
+all: likwid
 
 .ONESHELL:
-.PHONY: $(LIKWID_FOLDER)/likwid.h
-$(LIKWID_FOLDER)/likwid.h:
-	if [ "$(LIKWID_INSTALLED_FOLDER)" != "" ]; then \
-		BASE="$(LIKWID_INSTALLED_FOLDER)/../include"; \
-		mkdir -p $(LIKWID_FOLDER); \
-		cp $$BASE/*.h $(LIKWID_FOLDER); \
-	else \
-		BUILD_FOLDER="$${PWD}/likwidbuild"; \
-		if [ -d $(LIKWID_FOLDER) ]; then rm -r $(LIKWID_FOLDER); fi; \
-		mkdir --parents --verbose  $(LIKWID_FOLDER) $${BUILD_FOLDER}; \
-		wget -P "$${BUILD_FOLDER}" http://ftp.rrze.uni-erlangen.de/mirrors/likwid/likwid-$(LIKWID_VERSION).tar.gz; \
-		tar -C $${BUILD_FOLDER} -xf $${BUILD_FOLDER}/likwid-$(LIKWID_VERSION).tar.gz; \
-		install -Dpm 0644 $${BUILD_FOLDER}/likwid-$(LIKWID_VERSION)/src/includes/likwid*.h $(LIKWID_FOLDER)/; \
-		install -Dpm 0644 $${BUILD_FOLDER}/likwid-$(LIKWID_VERSION)/src/includes/bstrlib.h $(LIKWID_FOLDER)/; \
-		rm -r $${BUILD_FOLDER}; \
+.PHONY: likwid
+likwid:
+	if [ -n "$(LIKWID_INSTALLED_FOLDER)" ]; then
+	    # Using likwid include files from system installation
+	    INCLUDE_DIR="$(LIKWID_INSTALLED_FOLDER)/../include"
+	    mkdir --parents --verbose "$(LIKWID_FOLDER)"
+	    cp "$${INCLUDE_DIR}"/*.h "$(LIKWID_FOLDER)"
+	else
+	    # Using likwid include files from downloaded tar archive
+	    if [ -d "$(LIKWID_FOLDER)" ]; then
+	        rm --recursive "$(LIKWID_FOLDER)"
+	    fi
+	    BUILD_FOLDER="$${PWD}/likwidbuild"
+	    mkdir --parents --verbose  "$${BUILD_FOLDER}"
+	    wget --output-document=- http://ftp.rrze.uni-erlangen.de/mirrors/likwid/likwid-$(LIKWID_VERSION).tar.gz |
+	        tar --directory="$${BUILD_FOLDER}" --extract --gz
+		install -D --verbose --preserve-timestamps --mode=0644 --target-directory="$(LIKWID_FOLDER)" "$${BUILD_FOLDER}/likwid-$(LIKWID_VERSION)/src/includes"/likwid*.h "$${BUILD_FOLDER}/likwid-$(LIKWID_VERSION)/src/includes"/bstrlib.h
+	    rm --recursive "$${BUILD_FOLDER}"
 	fi
 
 
+.PHONY: clean
 clean:
 	rm -rf likwid
-
-.PHONY: clean

collectors/README.md

@@ -51,7 +51,7 @@ A collector reads data from any source, parses it to metrics and submits these m
 * `Name() string`: Return the name of the collector
 * `Init(config json.RawMessage) error`: Initializes the collector using the given collector-specific config in JSON. Check if needed files/commands exists, ...
 * `Initialized() bool`: Check if a collector is successfully initialized
-* `Read(duration time.Duration, output chan ccMetric.CCMetric)`: Read, parse and submit data to the `output` channel as [`CCMetric`](../internal/ccMetric/README.md). If the collector has to measure anything for some duration, use the provided function argument `duration`. 
+* `Read(duration time.Duration, output chan ccMetric.CCMetric)`: Read, parse and submit data to the `output` channel as [`CCMetric`](../internal/ccMetric/README.md). If the collector has to measure anything for some duration, use the provided function argument `duration`.
 * `Close()`: Closes down the collector.
 
 It is recommanded to call `setup()` in the `Init()` function.

collectors/collectorManager.go

@@ -36,8 +36,9 @@ var AvailableCollectors = map[string]MetricCollector{
 	"numastats":       new(NUMAStatsCollector),
 	"beegfs_meta":     new(BeegfsMetaCollector),
 	"beegfs_storage":  new(BeegfsStorageCollector),
+	"rapl":            new(RAPLCollector),
 	"rocm_smi":        new(RocmSmiCollector),
-	"smartmon":        new(SmartMonCollector),
+	"self":            new(SelfCollector),
 	"schedstat":       new(SchedstatCollector),
 }
 

collectors/cpufreqCpuinfoMetric.go

@@ -142,6 +142,11 @@ func (m *CPUFreqCpuInfoCollector) Init(config json.RawMessage) error {
 		}
 	}
 
+        // Check if at least one CPU with frequency information was detected
+        if len(m.topology) == 0 {
+                return fmt.Errorf("No CPU frequency info found in %s", cpuInfoFile)
+        }
+
 	numPhysicalPackageID_int := maxPhysicalPackageID + 1
 	numPhysicalPackageID := fmt.Sprint(numPhysicalPackageID_int)
 	numNonHT := fmt.Sprint(numNonHT_int)

collectors/cpufreqMetric.go

@@ -23,20 +23,18 @@ type CPUFreqCollectorTopology struct {
 	numPhysicalPackages     string // number of  sockets / packages
 	numPhysicalPackages_int int64
 	isHT                    bool
-	numNonHT                string // number of non hyperthreading processors
+	numNonHT                string // number of non hyper-threading processors
 	numNonHT_int            int64
 	scalingCurFreqFile      string
 	tagSet                  map[string]string
 }
 
-//
 // CPUFreqCollector
 // a metric collector to measure the current frequency of the CPUs
 // as obtained from the hardware (in KHz)
-// Only measure on the first hyper thread
+// Only measure on the first hyper-thread
 //
 // See: https://www.kernel.org/doc/html/latest/admin-guide/pm/cpufreq.html
-//
 type CPUFreqCollector struct {
 	metricCollector
 	topology []CPUFreqCollectorTopology
@@ -126,7 +124,7 @@ func (m *CPUFreqCollector) Init(config json.RawMessage) error {
 		t.scalingCurFreqFile = scalingCurFreqFile
 	}
 
-	// is processor a hyperthread?
+	// is processor a hyper-thread?
 	coreSeenBefore := make(map[string]bool)
 	for i := range m.topology {
 		t := &m.topology[i]
@@ -136,23 +134,20 @@ func (m *CPUFreqCollector) Init(config json.RawMessage) error {
 		coreSeenBefore[globalID] = true
 	}
 
-	// number of non hyper thread cores and packages / sockets
+	// number of non hyper-thread cores and packages / sockets
 	var numNonHT_int int64 = 0
-	var maxPhysicalPackageID int64 = 0
+	PhysicalPackageIDs := make(map[int64]struct{})
 	for i := range m.topology {
 		t := &m.topology[i]
 
-		// Update maxPackageID
-		if t.physicalPackageID_int > maxPhysicalPackageID {
-			maxPhysicalPackageID = t.physicalPackageID_int
-		}
-
 		if !t.isHT {
 			numNonHT_int++
 		}
+
+		PhysicalPackageIDs[t.physicalPackageID_int] = struct{}{}
 	}
 
-	numPhysicalPackageID_int := maxPhysicalPackageID + 1
+	numPhysicalPackageID_int := int64(len(PhysicalPackageIDs))
 	numPhysicalPackageID := fmt.Sprint(numPhysicalPackageID_int)
 	numNonHT := fmt.Sprint(numNonHT_int)
 	for i := range m.topology {
@@ -168,6 +163,13 @@ func (m *CPUFreqCollector) Init(config json.RawMessage) error {
 		}
 	}
 
+	// Initialized
+	cclog.ComponentDebug(
+		m.name,
+		"initialized",
+		numPhysicalPackageID_int, "physical packages,",
+		len(cpuDirs), "CPUs,",
+		numNonHT, "non-hyper-threading CPUs")
 	m.init = true
 	return nil
 }
@@ -182,7 +184,7 @@ func (m *CPUFreqCollector) Read(interval time.Duration, output chan lp.CCMetric)
 	for i := range m.topology {
 		t := &m.topology[i]
 
-		// skip hyperthreads
+		// skip hyper-threads
 		if t.isHT {
 			continue
 		}

collectors/cpufreqMetric.md

@@ -1,4 +1,5 @@
 ## `cpufreq_cpuinfo` collector
+
 ```json
   "cpufreq": {
     "exclude_metrics": []
@@ -8,4 +9,5 @@
 The `cpufreq` collector reads the clock frequency from `/sys/devices/system/cpu/cpu*/cpufreq` and outputs a handful **hwthread** metrics.
 
 Metrics:
-* `cpufreq`
+
+* `cpufreq`

collectors/cpustatMetric.go

@@ -119,12 +119,21 @@ func (m *CpustatCollector) parseStatLine(linefields []string, tags map[string]st
 		}
 	}
 
+	sum := float64(0)
 	for name, value := range values {
+		sum += value
 		y, err := lp.New(name, tags, m.meta, map[string]interface{}{"value": value * 100}, now)
 		if err == nil {
 			output <- y
 		}
 	}
+	if v, ok := values["cpu_idle"]; ok {
+		sum -= v
+		y, err := lp.New("cpu_used", tags, m.meta, map[string]interface{}{"value": sum * 100}, now)
+		if err == nil {
+			output <- y
+		}
+	}
 }
 
 func (m *CpustatCollector) Read(interval time.Duration, output chan lp.CCMetric) {

collectors/cpustatMetric.md

@@ -1,5 +1,6 @@
 
 ## `cpustat` collector
+
 ```json
   "cpustat": {
     "exclude_metrics": [
@@ -8,9 +9,10 @@
   }
 ```
 
-The `cpustat` collector reads data from `/proc/stats` and outputs a handful **node** and **hwthread** metrics. If a metric is not required, it can be excluded from forwarding it to the sink.
+The `cpustat` collector reads data from `/proc/stat` and outputs a handful **node** and **hwthread** metrics. If a metric is not required, it can be excluded from forwarding it to the sink.
 
 Metrics:
+
 * `cpu_user`
 * `cpu_nice`
 * `cpu_system`
@@ -21,3 +23,4 @@ Metrics:
 * `cpu_steal`
 * `cpu_guest`
 * `cpu_guest_nice`
+* `cpu_used` = `cpu_* - cpu_idle`

collectors/customCmdMetric.go

@@ -48,7 +48,7 @@ func (m *CustomCmdCollector) Init(config json.RawMessage) error {
 		command := exec.Command(cmdfields[0], strings.Join(cmdfields[1:], " "))
 		command.Wait()
 		_, err = command.Output()
-		if err != nil {
+		if err == nil {
 			m.commands = append(m.commands, c)
 		}
 	}

collectors/gpfsMetric.go

@@ -31,6 +31,7 @@ type GpfsCollector struct {
 		Mmpmon            string   `json:"mmpmon_path,omitempty"`
 		ExcludeFilesystem []string `json:"exclude_filesystem,omitempty"`
 		SendBandwidths    bool     `json:"send_bandwidths"`
+		SendTotalValues   bool     `json:"send_total_values"`
 	}
 	skipFS        map[string]struct{}
 	lastTimestamp time.Time // Store time stamp of last tick to derive bandwidths
@@ -216,13 +217,33 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 				fmt.Sprintf("Read(): Failed to convert bytes read '%s' to int64: %v", key_value["_br_"], err))
 			continue
 		}
-		if y, err := lp.New("gpfs_bytes_read", m.tags, m.meta, map[string]interface{}{"value": bytesRead}, timestamp); err == nil {
+		if y, err :=
+			lp.New(
+				"gpfs_bytes_read",
+				m.tags,
+				m.meta,
+				map[string]interface{}{
+					"value": bytesRead,
+				},
+				timestamp,
+			); err == nil {
+			y.AddMeta("unit", "bytes")
 			output <- y
 		}
 		if m.config.SendBandwidths {
 			if lastBytesRead := m.lastState[filesystem].bytesRead; lastBytesRead >= 0 {
 				bwRead := float64(bytesRead-lastBytesRead) / timeDiff
-				if y, err := lp.New("gpfs_bw_read", m.tags, m.meta, map[string]interface{}{"value": bwRead}, timestamp); err == nil {
+				if y, err :=
+					lp.New(
+						"gpfs_bw_read",
+						m.tags,
+						m.meta,
+						map[string]interface{}{
+							"value": bwRead,
+						},
+						timestamp,
+					); err == nil {
+					y.AddMeta("unit", "bytes/sec")
 					output <- y
 				}
 			}
@@ -236,13 +257,33 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 				fmt.Sprintf("Read(): Failed to convert bytes written '%s' to int64: %v", key_value["_bw_"], err))
 			continue
 		}
-		if y, err := lp.New("gpfs_bytes_written", m.tags, m.meta, map[string]interface{}{"value": bytesWritten}, timestamp); err == nil {
+		if y, err :=
+			lp.New(
+				"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.New("gpfs_bw_write", m.tags, m.meta, map[string]interface{}{"value": bwWrite}, timestamp); err == nil {
+				if y, err :=
+					lp.New(
+						"gpfs_bw_write",
+						m.tags,
+						m.meta,
+						map[string]interface{}{
+							"value": bwWrite,
+						},
+						timestamp,
+					); err == nil {
+					y.AddMeta("unit", "bytes/sec")
 					output <- y
 				}
 			}
@@ -326,6 +367,47 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMetric) {
 		if y, err := lp.New("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.New("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.New("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.New("gpfs_metaops",
+					m.tags,
+					m.meta,
+					map[string]interface{}{
+						"value": metaops,
+					},
+					timestamp,
+				); err == nil {
+				output <- y
+			}
+		}
 	}
 }
 

collectors/gpfsMetric.md

@@ -6,7 +6,8 @@
     "exclude_filesystem": [
       "fs1"
     ],
-    "send_bandwidths" : true
+    "send_bandwidths": true,
+    "send_total_values": true
   }
 ```
 
@@ -26,8 +27,12 @@ Metrics:
 * `gpfs_num_opens`
 * `gpfs_num_closes`
 * `gpfs_num_reads`
+* `gpfs_num_writes`
 * `gpfs_num_readdirs`
 * `gpfs_num_inode_updates`
+* `gpfs_bytes_total = gpfs_bytes_read + gpfs_bytes_written` (if `send_total_values == true`)
+* `gpfs_iops = gpfs_num_reads + gpfs_num_writes` (if `send_total_values == true`)
+* `gpfs_metaops = gpfs_num_inode_updates + gpfs_num_closes + gpfs_num_opens + gpfs_num_readdirs` (if `send_total_values == true`)
 * `gpfs_bw_read` (if `send_bandwidths == true`)
 * `gpfs_bw_write` (if `send_bandwidths == true`)
 

collectors/infinibandMetric.go

@@ -18,18 +18,22 @@ import (
 const IB_BASEPATH = "/sys/class/infiniband/"
 
 type InfinibandCollectorMetric struct {
-	path  string
-	unit  string
-	scale int64
+	name             string
+	path             string
+	unit             string
+	scale            int64
+	addToIBTotal     bool
+	addToIBTotalPkgs bool
+	currentState     int64
+	lastState        int64
 }
 
 type InfinibandCollectorInfo struct {
-	LID              string                               // IB local Identifier (LID)
-	device           string                               // IB device
-	port             string                               // IB device port
-	portCounterFiles map[string]InfinibandCollectorMetric // mapping counter name -> InfinibandCollectorMetric
-	tagSet           map[string]string                    // corresponding tag list
-	lastState        map[string]int64                     // State from last measurement
+	LID              string                      // IB local Identifier (LID)
+	device           string                      // IB device
+	port             string                      // IB device port
+	portCounterFiles []InfinibandCollectorMetric // mapping counter name -> InfinibandCollectorMetric
+	tagSet           map[string]string           // corresponding tag list
 }
 
 type InfinibandCollector struct {
@@ -37,9 +41,10 @@ type InfinibandCollector struct {
 	config struct {
 		ExcludeDevices     []string `json:"exclude_devices,omitempty"` // IB device to exclude e.g. mlx5_0
 		SendAbsoluteValues bool     `json:"send_abs_values"`           // Send absolut values as read from sys filesystem
+		SendTotalValues    bool     `json:"send_total_values"`         // Send computed total values
 		SendDerivedValues  bool     `json:"send_derived_values"`       // Send derived values e.g. rates
 	}
-	info          []*InfinibandCollectorInfo
+	info          []InfinibandCollectorInfo
 	lastTimestamp time.Time // Store time stamp of last tick to derive bandwidths
 }
 
@@ -112,11 +117,39 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 
 		// Check access to counter files
 		countersDir := filepath.Join(path, "counters")
-		portCounterFiles := map[string]InfinibandCollectorMetric{
-			"ib_recv":      {path: filepath.Join(countersDir, "port_rcv_data"), unit: "bytes", scale: 4},
-			"ib_xmit":      {path: filepath.Join(countersDir, "port_xmit_data"), unit: "bytes", scale: 4},
-			"ib_recv_pkts": {path: filepath.Join(countersDir, "port_rcv_packets"), unit: "packets", scale: 1},
-			"ib_xmit_pkts": {path: filepath.Join(countersDir, "port_xmit_packets"), unit: "packets", scale: 1},
+		portCounterFiles := []InfinibandCollectorMetric{
+			{
+				name:         "ib_recv",
+				path:         filepath.Join(countersDir, "port_rcv_data"),
+				unit:         "bytes",
+				scale:        4,
+				addToIBTotal: true,
+				lastState:    -1,
+			},
+			{
+				name:         "ib_xmit",
+				path:         filepath.Join(countersDir, "port_xmit_data"),
+				unit:         "bytes",
+				scale:        4,
+				addToIBTotal: true,
+				lastState:    -1,
+			},
+			{
+				name:             "ib_recv_pkts",
+				path:             filepath.Join(countersDir, "port_rcv_packets"),
+				unit:             "packets",
+				scale:            1,
+				addToIBTotalPkgs: true,
+				lastState:        -1,
+			},
+			{
+				name:             "ib_xmit_pkts",
+				path:             filepath.Join(countersDir, "port_xmit_packets"),
+				unit:             "packets",
+				scale:            1,
+				addToIBTotalPkgs: true,
+				lastState:        -1,
+			},
 		}
 		for _, counter := range portCounterFiles {
 			err := unix.Access(counter.path, unix.R_OK)
@@ -125,14 +158,8 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 			}
 		}
 
-		// Initialize last state
-		lastState := make(map[string]int64)
-		for counter := range portCounterFiles {
-			lastState[counter] = -1
-		}
-
 		m.info = append(m.info,
-			&InfinibandCollectorInfo{
+			InfinibandCollectorInfo{
 				LID:              LID,
 				device:           device,
 				port:             port,
@@ -143,7 +170,6 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 					"port":   port,
 					"lid":    LID,
 				},
-				lastState: lastState,
 			})
 	}
 
@@ -170,8 +196,12 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMetr
 	// Save current timestamp
 	m.lastTimestamp = now
 
-	for _, info := range m.info {
-		for counterName, counterDef := range info.portCounterFiles {
+	for i := range m.info {
+		info := &m.info[i]
+
+		var ib_total, ib_total_pkts int64
+		for i := range info.portCounterFiles {
+			counterDef := &info.portCounterFiles[i]
 
 			// Read counter file
 			line, err := os.ReadFile(counterDef.path)
@@ -188,15 +218,26 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMetr
 			if err != nil {
 				cclog.ComponentError(
 					m.name,
-					fmt.Sprintf("Read(): Failed to convert Infininiband metrice %s='%s' to int64: %v", counterName, data, err))
+					fmt.Sprintf("Read(): Failed to convert Infininiband metrice %s='%s' to int64: %v", counterDef.name, data, err))
 				continue
 			}
 			// Scale raw value
 			v *= counterDef.scale
 
+			// Save current state
+			counterDef.currentState = v
+
 			// Send absolut values
 			if m.config.SendAbsoluteValues {
-				if y, err := lp.New(counterName, info.tagSet, m.meta, map[string]interface{}{"value": v}, now); err == nil {
+				if y, err :=
+					lp.New(
+						counterDef.name,
+						info.tagSet,
+						m.meta,
+						map[string]interface{}{
+							"value": counterDef.currentState,
+						},
+						now); err == nil {
 					y.AddMeta("unit", counterDef.unit)
 					output <- y
 				}
@@ -204,18 +245,64 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMetr
 
 			// Send derived values
 			if m.config.SendDerivedValues {
-				if info.lastState[counterName] >= 0 {
-					rate := float64((v - info.lastState[counterName])) / timeDiff
-					if y, err := lp.New(counterName+"_bw", info.tagSet, m.meta, map[string]interface{}{"value": rate}, now); err == nil {
+				if counterDef.lastState >= 0 {
+					rate := float64((counterDef.currentState - counterDef.lastState)) / timeDiff
+					if y, err :=
+						lp.New(
+							counterDef.name+"_bw",
+							info.tagSet,
+							m.meta,
+							map[string]interface{}{
+								"value": rate,
+							},
+							now); err == nil {
 						y.AddMeta("unit", counterDef.unit+"/sec")
 						output <- y
+
 					}
 				}
-				// Save current state
-				info.lastState[counterName] = v
+				counterDef.lastState = counterDef.currentState
+			}
+
+			// Sum up total values
+			if m.config.SendTotalValues {
+				switch {
+				case counterDef.addToIBTotal:
+					ib_total += counterDef.currentState
+				case counterDef.addToIBTotalPkgs:
+					ib_total_pkts += counterDef.currentState
+				}
 			}
 		}
 
+		// Send total values
+		if m.config.SendTotalValues {
+			if y, err :=
+				lp.New(
+					"ib_total",
+					info.tagSet,
+					m.meta,
+					map[string]interface{}{
+						"value": ib_total,
+					},
+					now); err == nil {
+				y.AddMeta("unit", "bytes")
+				output <- y
+			}
+
+			if y, err :=
+				lp.New(
+					"ib_total_pkts",
+					info.tagSet,
+					m.meta,
+					map[string]interface{}{
+						"value": ib_total_pkts,
+					},
+					now); err == nil {
+				y.AddMeta("unit", "packets")
+				output <- y
+			}
+		}
 	}
 }
 

collectors/infinibandMetric.md

@@ -17,13 +17,16 @@ LID file (`/sys/class/infiniband/<dev>/ports/<port>/lid`)
 
 The devices can be filtered with the `exclude_devices` option in the configuration.
 
-For each found LID the collector reads data through the sysfs files below `/sys/class/infiniband/<device>`.
+For each found LID the collector reads data through the sysfs files below `/sys/class/infiniband/<device>`. (See: <https://www.kernel.org/doc/Documentation/ABI/stable/sysfs-class-infiniband>)
 
 Metrics:
+
 * `ib_recv`
 * `ib_xmit`
 * `ib_recv_pkts`
 * `ib_xmit_pkts`
+* `ib_total = ib_recv + ib_xmit` (if `send_total_values == true`)
+* `ib_total_pkts = ib_recv_pkts + ib_xmit_pkts` (if `send_total_values == true`)
 * `ib_recv_bw` (if `send_derived_values == true`)
 * `ib_xmit_bw` (if `send_derived_values == true`)
 * `ib_recv_pkts_bw` (if `send_derived_values == true`)

collectors/ipmiMetric.go

@@ -1,51 +1,57 @@
 package collectors
 
 import (
+	"bufio"
+	"bytes"
 	"encoding/json"
 	"errors"
+	"fmt"
+	"io"
 	"log"
-	"os"
 	"os/exec"
 	"strconv"
 	"strings"
 	"time"
-
+	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
-const IPMITOOL_PATH = `ipmitool`
 const IPMISENSORS_PATH = `ipmi-sensors`
 
-type IpmiCollectorConfig struct {
-	ExcludeDevices  []string `json:"exclude_devices"`
-	IpmitoolPath    string   `json:"ipmitool_path"`
-	IpmisensorsPath string   `json:"ipmisensors_path"`
-}
-
 type IpmiCollector struct {
 	metricCollector
-	//tags        map[string]string
-	//matches     map[string]string
-	config      IpmiCollectorConfig
+	config struct {
+		ExcludeDevices  []string `json:"exclude_devices"`
+		IpmitoolPath    string   `json:"ipmitool_path"`
+		IpmisensorsPath string   `json:"ipmisensors_path"`
+	}
 	ipmitool    string
 	ipmisensors string
 }
 
 func (m *IpmiCollector) Init(config json.RawMessage) error {
+	// Check if already initialized
+	if m.init {
+		return nil
+	}
+
 	m.name = "IpmiCollector"
 	m.setup()
 	m.parallel = true
-	m.meta = map[string]string{"source": m.name, "group": "IPMI"}
-	m.config.IpmitoolPath = string(IPMITOOL_PATH)
-	m.config.IpmisensorsPath = string(IPMISENSORS_PATH)
-	m.ipmitool = ""
-	m.ipmisensors = ""
+	m.meta = map[string]string{
+		"source": m.name,
+		"group":  "IPMI",
+	}
+	// default path to IPMI tools
+	m.config.IpmitoolPath = "ipmitool"
+	m.config.IpmisensorsPath = "ipmi-sensors"
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
 			return err
 		}
 	}
+	// Check if executables ipmitool or ipmisensors are found
 	p, err := exec.LookPath(m.config.IpmitoolPath)
 	if err == nil {
 		m.ipmitool = p
@@ -62,25 +68,33 @@ func (m *IpmiCollector) Init(config json.RawMessage) error {
 }
 
 func (m *IpmiCollector) readIpmiTool(cmd string, output chan lp.CCMetric) {
+
+	// Setup ipmitool command
 	command := exec.Command(cmd, "sensor")
-	command.Wait()
-	stdout, err := command.Output()
-	if err != nil {
-		log.Print(err)
+	stdout, _ := command.StdoutPipe()
+	errBuf := new(bytes.Buffer)
+	command.Stderr = errBuf
+
+	// start command
+	if err := command.Start(); err != nil {
+		cclog.ComponentError(
+			m.name,
+			fmt.Sprintf("readIpmiTool(): Failed to start command \"%s\": %v", command.String(), err),
+		)
 		return
 	}
 
-	ll := strings.Split(string(stdout), "\n")
-
-	for _, line := range ll {
-		lv := strings.Split(line, "|")
+	// Read command output
+	scanner := bufio.NewScanner(stdout)
+	for scanner.Scan() {
+		lv := strings.Split(scanner.Text(), "|")
 		if len(lv) < 3 {
 			continue
 		}
-		v, err := strconv.ParseFloat(strings.Trim(lv[1], " "), 64)
+		v, err := strconv.ParseFloat(strings.TrimSpace(lv[1]), 64)
 		if err == nil {
-			name := strings.ToLower(strings.Replace(strings.Trim(lv[0], " "), " ", "_", -1))
-			unit := strings.Trim(lv[2], " ")
+			name := strings.ToLower(strings.Replace(strings.TrimSpace(lv[0]), " ", "_", -1))
+			unit := strings.TrimSpace(lv[2])
 			if unit == "Volts" {
 				unit = "Volts"
 			} else if unit == "degrees C" {
@@ -98,6 +112,17 @@ func (m *IpmiCollector) readIpmiTool(cmd string, output chan lp.CCMetric) {
 			}
 		}
 	}
+
+	// Wait for command end
+	if err := command.Wait(); err != nil {
+		errMsg, _ := io.ReadAll(errBuf)
+		cclog.ComponentError(
+			m.name,
+			fmt.Sprintf("readIpmiTool(): Failed to wait for the end of command \"%s\": %v\n", command.String(), err),
+			fmt.Sprintf("readIpmiTool(): command stderr: \"%s\"\n", string(errMsg)),
+		)
+		return
+	}
 }
 
 func (m *IpmiCollector) readIpmiSensors(cmd string, output chan lp.CCMetric) {
@@ -131,16 +156,16 @@ func (m *IpmiCollector) readIpmiSensors(cmd string, output chan lp.CCMetric) {
 }
 
 func (m *IpmiCollector) Read(interval time.Duration, output chan lp.CCMetric) {
+
+	// Check if already initialized
+	if !m.init {
+		return
+	}
+
 	if len(m.config.IpmitoolPath) > 0 {
-		_, err := os.Stat(m.config.IpmitoolPath)
-		if err == nil {
-			m.readIpmiTool(m.config.IpmitoolPath, output)
-		}
+		m.readIpmiTool(m.config.IpmitoolPath, output)
 	} else if len(m.config.IpmisensorsPath) > 0 {
-		_, err := os.Stat(m.config.IpmisensorsPath)
-		if err == nil {
-			m.readIpmiSensors(m.config.IpmisensorsPath, output)
-		}
+		m.readIpmiSensors(m.config.IpmisensorsPath, output)
 	}
 }
 

collectors/ipmiMetric.md

@@ -8,9 +8,6 @@
   }
 ```
 
-The `ipmistat` collector reads data from `ipmitool` (`ipmitool sensor`) or `ipmi-sensors` (`ipmi-sensors --sdr-cache-recreate --comma-separated-output`). 
+The `ipmistat` collector reads data from `ipmitool` (`ipmitool sensor`) or `ipmi-sensors` (`ipmi-sensors --sdr-cache-recreate --comma-separated-output`).
 
 The metrics depend on the output of the underlying tools but contain temperature, power and energy metrics.
-
-
-

collectors/likwidMetric.go

@@ -15,6 +15,7 @@ import (
 	"math"
 	"os"
 	"os/signal"
+	"os/user"
 	"sort"
 	"strconv"
 	"strings"
@@ -28,12 +29,15 @@ import (
 	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 	topo "github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
 	"github.com/NVIDIA/go-nvml/pkg/dl"
+	"golang.design/x/thread"
+	fsnotify "gopkg.in/fsnotify.v1"
 )
 
 const (
 	LIKWID_LIB_NAME       = "liblikwid.so"
 	LIKWID_LIB_DL_FLAGS   = dl.RTLD_LAZY | dl.RTLD_GLOBAL
 	LIKWID_DEF_ACCESSMODE = "direct"
+	LIKWID_DEF_LOCKFILE   = "/var/run/likwid.lock"
 )
 
 type LikwidCollectorMetricConfig struct {
@@ -67,22 +71,25 @@ type LikwidCollectorConfig struct {
 	AccessMode     string                          `json:"access_mode,omitempty"`
 	DaemonPath     string                          `json:"accessdaemon_path,omitempty"`
 	LibraryPath    string                          `json:"liblikwid_path,omitempty"`
+	LockfilePath   string                          `json:"lockfile_path,omitempty"`
 }
 
 type LikwidCollector struct {
 	metricCollector
-	cpulist      []C.int
-	cpu2tid      map[int]int
-	sock2tid     map[int]int
-	metrics      map[C.int]map[string]int
-	groups       []C.int
-	config       LikwidCollectorConfig
-	gmresults    map[int]map[string]float64
-	basefreq     float64
-	running      bool
-	initialized  bool
-	likwidGroups map[C.int]LikwidEventsetConfig
-	lock         sync.Mutex
+	cpulist       []C.int
+	cpu2tid       map[int]int
+	sock2tid      map[int]int
+	metrics       map[C.int]map[string]int
+	groups        []C.int
+	config        LikwidCollectorConfig
+	gmresults     map[int]map[string]float64
+	basefreq      float64
+	running       bool
+	initialized   bool
+	needs_reinit  bool
+	likwidGroups  map[C.int]LikwidEventsetConfig
+	lock          sync.Mutex
+	measureThread thread.Thread
 }
 
 type LikwidMetric struct {
@@ -92,6 +99,18 @@ type LikwidMetric struct {
 	group_idx int
 }
 
+func checkMetricType(t string) bool {
+	valid := map[string]bool{
+		"node":         true,
+		"socket":       true,
+		"hwthread":     true,
+		"core":         true,
+		"memoryDomain": true,
+	}
+	_, ok := valid[t]
+	return ok
+}
+
 func eventsToEventStr(events map[string]string) string {
 	elist := make([]string, 0)
 	for k, v := range events {
@@ -179,9 +198,11 @@ func (m *LikwidCollector) Init(config json.RawMessage) error {
 	m.name = "LikwidCollector"
 	m.parallel = false
 	m.initialized = false
+	m.needs_reinit = true
 	m.running = false
 	m.config.AccessMode = LIKWID_DEF_ACCESSMODE
 	m.config.LibraryPath = LIKWID_LIB_NAME
+	m.config.LockfilePath = LIKWID_DEF_LOCKFILE
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
@@ -239,12 +260,16 @@ func (m *LikwidCollector) Init(config json.RawMessage) error {
 			}
 			for _, metric := range evset.Metrics {
 				// Try to evaluate the metric
-				if testLikwidMetricFormula(metric.Calc, params) {
-					// Add the computable metric to the parameter list for the global metrics
+				cclog.ComponentDebug(m.name, "Checking", metric.Name)
+				if !checkMetricType(metric.Type) {
+					cclog.ComponentError(m.name, "Metric", metric.Name, "uses invalid type", metric.Type)
+					metric.Calc = ""
+				} else if !testLikwidMetricFormula(metric.Calc, params) {
+					cclog.ComponentError(m.name, "Metric", metric.Name, "cannot be calculated with given counters")
+					metric.Calc = ""
+				} else {
 					globalParams = append(globalParams, metric.Name)
 					totalMetrics++
-				} else {
-					metric.Calc = ""
 				}
 			}
 		} else {
@@ -254,8 +279,14 @@ func (m *LikwidCollector) Init(config json.RawMessage) error {
 	}
 	for _, metric := range m.config.Metrics {
 		// Try to evaluate the global metric
-		if !testLikwidMetricFormula(metric.Calc, globalParams) {
-			cclog.ComponentError(m.name, "Calculation for metric", metric.Name, "failed")
+		if !checkMetricType(metric.Type) {
+			cclog.ComponentError(m.name, "Metric", metric.Name, "uses invalid type", metric.Type)
+			metric.Calc = ""
+		} else if !testLikwidMetricFormula(metric.Calc, globalParams) {
+			cclog.ComponentError(m.name, "Metric", metric.Name, "cannot be calculated with given counters")
+			metric.Calc = ""
+		} else if !checkMetricType(metric.Type) {
+			cclog.ComponentError(m.name, "Metric", metric.Name, "has invalid type")
 			metric.Calc = ""
 		} else {
 			totalMetrics++
@@ -268,56 +299,213 @@ func (m *LikwidCollector) Init(config json.RawMessage) error {
 		cclog.ComponentError(m.name, err.Error())
 		return err
 	}
+
+	ret := C.topology_init()
+	if ret != 0 {
+		err := errors.New("failed to initialize topology module")
+		cclog.ComponentError(m.name, err.Error())
+		return err
+	}
+	m.measureThread = thread.New()
+	switch m.config.AccessMode {
+	case "direct":
+		m.measureThread.Call(
+			func() {
+				C.HPMmode(0)
+			})
+	case "accessdaemon":
+		if len(m.config.DaemonPath) > 0 {
+			p := os.Getenv("PATH")
+			os.Setenv("PATH", m.config.DaemonPath+":"+p)
+		}
+		m.measureThread.Call(
+			func() {
+				C.HPMmode(1)
+				retCode := C.HPMinit()
+				if retCode != 0 {
+					err := fmt.Errorf("C.HPMinit() failed with return code %v", retCode)
+					cclog.ComponentError(m.name, err.Error())
+				}
+			})
+		for _, c := range m.cpulist {
+			m.measureThread.Call(
+				func() {
+					retCode := C.HPMaddThread(c)
+					if retCode != 0 {
+						err := fmt.Errorf("C.HPMaddThread(%v) failed with return code %v", c, retCode)
+						cclog.ComponentError(m.name, err.Error())
+					}
+				})
+		}
+	}
+	m.sock2tid = make(map[int]int)
+	tmp := make([]C.int, 1)
+	for _, sid := range topo.SocketList() {
+		cstr := C.CString(fmt.Sprintf("S%d:0", sid))
+		ret = C.cpustr_to_cpulist(cstr, &tmp[0], 1)
+		if ret > 0 {
+			m.sock2tid[sid] = m.cpu2tid[int(tmp[0])]
+		}
+		C.free(unsafe.Pointer(cstr))
+	}
+
+	m.basefreq = getBaseFreq()
 	m.init = true
 	return nil
 }
 
 // take a measurement for 'interval' seconds of event set index 'group'
-func (m *LikwidCollector) takeMeasurement(evset LikwidEventsetConfig, interval time.Duration) (bool, error) {
+func (m *LikwidCollector) takeMeasurement(evidx int, evset LikwidEventsetConfig, interval time.Duration) (bool, error) {
 	var ret C.int
-	m.lock.Lock()
-	if m.initialized {
-		ret = C.perfmon_setupCounters(evset.gid)
-		if ret != 0 {
-			var err error = nil
-			var skip bool = false
-			if ret == -37 {
-				skip = true
-			} else {
-				err = fmt.Errorf("failed to setup performance group %d", evset.gid)
-			}
-			m.lock.Unlock()
-			return skip, err
+	var gid C.int = -1
+	sigchan := make(chan os.Signal, 1)
+	watcher, err := fsnotify.NewWatcher()
+	if err != nil {
+		cclog.ComponentError(m.name, err.Error())
+		return true, err
+	}
+	defer watcher.Close()
+	if len(m.config.LockfilePath) > 0 {
+		info, err := os.Stat(m.config.LockfilePath)
+		if err != nil {
+			return true, err
 		}
-		ret = C.perfmon_startCounters()
-		if ret != 0 {
-			var err error = nil
-			var skip bool = false
-			if ret == -37 {
-				skip = true
+		stat := info.Sys().(*syscall.Stat_t)
+		if stat.Uid != uint32(os.Getuid()) {
+			usr, err := user.LookupId(strconv.FormatUint(uint64(stat.Uid), 10))
+			if err == nil {
+				return true, fmt.Errorf("Access to performance counters locked by %s", usr.Username)
 			} else {
-				err = fmt.Errorf("failed to setup performance group %d", evset.gid)
+				return true, fmt.Errorf("Access to performance counters locked by %d", stat.Uid)
 			}
-			m.lock.Unlock()
-			return skip, err
 		}
-		m.running = true
-		time.Sleep(interval)
-		m.running = false
-		ret = C.perfmon_stopCounters()
-		if ret != 0 {
-			var err error = nil
-			var skip bool = false
-			if ret == -37 {
-				skip = true
-			} else {
-				err = fmt.Errorf("failed to setup performance group %d", evset.gid)
-			}
-			m.lock.Unlock()
-			return skip, err
+		err = watcher.Add(m.config.LockfilePath)
+		if err != nil {
+			cclog.ComponentError(m.name, err.Error())
 		}
 	}
-	m.lock.Unlock()
+	m.lock.Lock()
+	defer m.lock.Unlock()
+	select {
+	case e := <-watcher.Events:
+		ret = -1
+		if e.Op != fsnotify.Chmod {
+			ret = C.perfmon_init(C.int(len(m.cpulist)), &m.cpulist[0])
+		}
+	default:
+		ret = C.perfmon_init(C.int(len(m.cpulist)), &m.cpulist[0])
+	}
+	if ret != 0 {
+		return true, fmt.Errorf("failed to initialize library, error %d", ret)
+	}
+	signal.Notify(sigchan, os.Interrupt)
+	signal.Notify(sigchan, syscall.SIGCHLD)
+	select {
+	case <-sigchan:
+		gid = -1
+	case e := <-watcher.Events:
+		gid = -1
+		if e.Op != fsnotify.Chmod {
+			gid = C.perfmon_addEventSet(evset.estr)
+		}
+	default:
+		gid = C.perfmon_addEventSet(evset.estr)
+	}
+	if gid < 0 {
+		return true, fmt.Errorf("failed to add events %s, error %d", evset.go_estr, gid)
+	} else {
+		evset.gid = gid
+		//m.likwidGroups[gid] = evset
+	}
+	select {
+	case <-sigchan:
+		ret = -1
+	case e := <-watcher.Events:
+		if e.Op != fsnotify.Chmod {
+			ret = C.perfmon_setupCounters(gid)
+		}
+	default:
+		ret = C.perfmon_setupCounters(gid)
+	}
+	if ret != 0 {
+		return true, fmt.Errorf("failed to setup events '%s', error %d", evset.go_estr, ret)
+	}
+	select {
+	case <-sigchan:
+		ret = -1
+	case e := <-watcher.Events:
+		if e.Op != fsnotify.Chmod {
+			ret = C.perfmon_startCounters()
+		}
+	default:
+		ret = C.perfmon_startCounters()
+	}
+	if ret != 0 {
+		return true, fmt.Errorf("failed to start events '%s', error %d", evset.go_estr, ret)
+	}
+	select {
+	case <-sigchan:
+		ret = -1
+	case e := <-watcher.Events:
+		if e.Op != fsnotify.Chmod {
+			ret = C.perfmon_readCounters()
+		}
+	default:
+		ret = C.perfmon_readCounters()
+	}
+	if ret != 0 {
+		return true, fmt.Errorf("failed to read events '%s', error %d", evset.go_estr, ret)
+	}
+	time.Sleep(interval)
+	select {
+	case <-sigchan:
+		ret = -1
+	case e := <-watcher.Events:
+		if e.Op != fsnotify.Chmod {
+			ret = C.perfmon_readCounters()
+		}
+	default:
+		ret = C.perfmon_readCounters()
+	}
+	if ret != 0 {
+		return true, fmt.Errorf("failed to read events '%s', error %d", evset.go_estr, ret)
+	}
+	for eidx, counter := range evset.eorder {
+		gctr := C.GoString(counter)
+		for _, tid := range m.cpu2tid {
+			res := C.perfmon_getLastResult(gid, C.int(eidx), C.int(tid))
+			fres := float64(res)
+			if m.config.InvalidToZero && (math.IsNaN(fres) || math.IsInf(fres, 0)) {
+				fres = 0.0
+			}
+			evset.results[tid][gctr] = fres
+		}
+	}
+	for _, tid := range m.cpu2tid {
+		evset.results[tid]["time"] = float64(C.perfmon_getLastTimeOfGroup(gid))
+	}
+	select {
+	case <-sigchan:
+		ret = -1
+	case e := <-watcher.Events:
+		if e.Op != fsnotify.Chmod {
+			ret = C.perfmon_stopCounters()
+		}
+	default:
+		ret = C.perfmon_stopCounters()
+	}
+	if ret != 0 {
+		return true, fmt.Errorf("failed to stop events '%s', error %d", evset.go_estr, ret)
+	}
+	signal.Stop(sigchan)
+	select {
+	case e := <-watcher.Events:
+		if e.Op != fsnotify.Chmod {
+			C.perfmon_finalize()
+		}
+	default:
+		C.perfmon_finalize()
+	}
 	return false, nil
 }
 
@@ -325,19 +513,8 @@ func (m *LikwidCollector) takeMeasurement(evset LikwidEventsetConfig, interval t
 func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interval time.Duration, output chan lp.CCMetric) error {
 	invClock := float64(1.0 / m.basefreq)
 
-	// Go over events and get the results
-	for eidx, counter := range evset.eorder {
-		gctr := C.GoString(counter)
-		for _, tid := range m.cpu2tid {
-			res := C.perfmon_getLastResult(evset.gid, C.int(eidx), C.int(tid))
-			fres := float64(res)
-			if m.config.InvalidToZero && (math.IsNaN(fres) || math.IsInf(fres, 0)) {
-				fres = 0.0
-			}
-			evset.results[tid][gctr] = fres
-			evset.results[tid]["time"] = interval.Seconds()
-			evset.results[tid]["inverseClock"] = invClock
-		}
+	for _, tid := range m.cpu2tid {
+		evset.results[tid]["inverseClock"] = invClock
 	}
 
 	// Go over the event set metrics, derive the value out of the event:counter values and send it
@@ -383,7 +560,7 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 }
 
 // Go over the global metrics, derive the value out of the event sets' metric values and send it
-func (m *LikwidCollector) calcGlobalMetrics(interval time.Duration, output chan lp.CCMetric) error {
+func (m *LikwidCollector) calcGlobalMetrics(groups []LikwidEventsetConfig, interval time.Duration, output chan lp.CCMetric) error {
 	for _, metric := range m.config.Metrics {
 		scopemap := m.cpu2tid
 		if metric.Type == "socket" {
@@ -393,7 +570,7 @@ func (m *LikwidCollector) calcGlobalMetrics(interval time.Duration, output chan
 			if tid >= 0 {
 				// Here we generate parameter list
 				params := make(map[string]interface{})
-				for _, evset := range m.likwidGroups {
+				for _, evset := range groups {
 					for mname, mres := range evset.metrics[tid] {
 						params[mname] = mres
 					}
@@ -407,7 +584,7 @@ func (m *LikwidCollector) calcGlobalMetrics(interval time.Duration, output chan
 				if m.config.InvalidToZero && (math.IsNaN(value) || math.IsInf(value, 0)) {
 					value = 0.0
 				}
-				m.gmresults[tid][metric.Name] = value
+				//m.gmresults[tid][metric.Name] = value
 				// Now we have the result, send it with the proper tags
 				if !math.IsNaN(value) {
 					if metric.Publish {
@@ -431,163 +608,52 @@ func (m *LikwidCollector) calcGlobalMetrics(interval time.Duration, output chan
 	return nil
 }
 
-func (m *LikwidCollector) LateInit() error {
-	var ret C.int
-	if m.initialized {
-		return nil
-	}
-	switch m.config.AccessMode {
-	case "direct":
-		C.HPMmode(0)
-	case "accessdaemon":
-		if len(m.config.DaemonPath) > 0 {
-			p := os.Getenv("PATH")
-			os.Setenv("PATH", m.config.DaemonPath+":"+p)
-		}
-		C.HPMmode(1)
-	}
-	cclog.ComponentDebug(m.name, "initialize LIKWID topology")
-	ret = C.topology_init()
-	if ret != 0 {
-		err := errors.New("failed to initialize LIKWID topology")
-		cclog.ComponentError(m.name, err.Error())
-		return err
-	}
+func (m *LikwidCollector) ReadThread(interval time.Duration, output chan lp.CCMetric) {
+	var err error = nil
+	groups := make([]LikwidEventsetConfig, 0)
 
-	m.sock2tid = make(map[int]int)
-	tmp := make([]C.int, 1)
-	for _, sid := range topo.SocketList() {
-		cstr := C.CString(fmt.Sprintf("S%d:0", sid))
-		ret = C.cpustr_to_cpulist(cstr, &tmp[0], 1)
-		if ret > 0 {
-			m.sock2tid[sid] = m.cpu2tid[int(tmp[0])]
-		}
-		C.free(unsafe.Pointer(cstr))
-	}
-
-	m.basefreq = getBaseFreq()
-	cclog.ComponentDebug(m.name, "BaseFreq", m.basefreq)
-
-	cclog.ComponentDebug(m.name, "initialize LIKWID perfmon module")
-	ret = C.perfmon_init(C.int(len(m.cpulist)), &m.cpulist[0])
-	if ret != 0 {
-		var err error = nil
-		C.topology_finalize()
-		if ret != -22 {
-			err = errors.New("failed to initialize LIKWID perfmon")
-			cclog.ComponentError(m.name, err.Error())
-		} else {
-			err = errors.New("access to LIKWID perfmon locked")
-		}
-		return err
-	}
-
-	// While adding the events, we test the metrics whether they can be computed at all
-	for i, evset := range m.config.Eventsets {
-		var gid C.int
-		if len(evset.Events) > 0 {
-			skip := false
-			likwidGroup := genLikwidEventSet(evset)
-			for _, g := range m.likwidGroups {
-				if likwidGroup.go_estr == g.go_estr {
-					skip = true
-					break
-				}
+	for evidx, evset := range m.config.Eventsets {
+		e := genLikwidEventSet(evset)
+		e.internal = evidx
+		skip := false
+		if !skip {
+			// measure event set 'i' for 'interval' seconds
+			skip, err = m.takeMeasurement(evidx, e, interval)
+			if err != nil {
+				cclog.ComponentError(m.name, err.Error())
+				return
 			}
-			if skip {
-				continue
-			}
-			// Now we add the list of events to likwid
-			gid = C.perfmon_addEventSet(likwidGroup.estr)
-			if gid >= 0 {
-				likwidGroup.gid = gid
-				likwidGroup.internal = i
-				m.likwidGroups[gid] = likwidGroup
-			}
-		} else {
-			cclog.ComponentError(m.name, "Invalid Likwid eventset config, no events given")
-			continue
 		}
 
+		if !skip {
+			// read measurements and derive event set metrics
+			m.calcEventsetMetrics(e, interval, output)
+		}
+		groups = append(groups, e)
 	}
-
-	// If no event set could be added, shut down LikwidCollector
-	if len(m.likwidGroups) == 0 {
-		C.perfmon_finalize()
-		C.topology_finalize()
-		err := errors.New("no LIKWID performance group initialized")
-		cclog.ComponentError(m.name, err.Error())
-		return err
-	}
-	sigchan := make(chan os.Signal, 1)
-	signal.Notify(sigchan, syscall.SIGCHLD)
-	signal.Notify(sigchan, os.Interrupt)
-	go func() {
-		<-sigchan
-
-		signal.Stop(sigchan)
-		m.initialized = false
-	}()
-	m.initialized = true
-	return nil
+	// calculate global metrics
+	m.calcGlobalMetrics(groups, interval, output)
 }
 
 // main read function taking multiple measurement rounds, each 'interval' seconds long
 func (m *LikwidCollector) Read(interval time.Duration, output chan lp.CCMetric) {
-	var skip bool = false
-	var err error
+	//var skip bool = false
+	//var err error
 	if !m.init {
 		return
 	}
-
-	if !m.initialized {
-		m.lock.Lock()
-		err = m.LateInit()
-		if err != nil {
-			m.lock.Unlock()
-			return
-		}
-		m.initialized = true
-		m.lock.Unlock()
-	}
-
-	if m.initialized && !skip {
-		for _, evset := range m.likwidGroups {
-			if !skip {
-				// measure event set 'i' for 'interval' seconds
-				skip, err = m.takeMeasurement(evset, interval)
-				if err != nil {
-					cclog.ComponentError(m.name, err.Error())
-					return
-				}
-			}
-
-			if !skip {
-				// read measurements and derive event set metrics
-				m.calcEventsetMetrics(evset, interval, output)
-			}
-		}
-		if !skip {
-			// use the event set metrics to derive the global metrics
-			m.calcGlobalMetrics(interval, output)
-		}
-	}
+	m.measureThread.Call(func() {
+		m.ReadThread(interval, output)
+	})
 }
 
 func (m *LikwidCollector) Close() {
 	if m.init {
 		m.init = false
-		cclog.ComponentDebug(m.name, "Closing ...")
 		m.lock.Lock()
-		if m.initialized {
-			cclog.ComponentDebug(m.name, "Finalize LIKWID perfmon module")
-			C.perfmon_finalize()
-			m.initialized = false
-		}
+		m.measureThread.Terminate()
+		m.initialized = false
 		m.lock.Unlock()
-		cclog.ComponentDebug(m.name, "Finalize LIKWID topology module")
 		C.topology_finalize()
-
-		cclog.ComponentDebug(m.name, "Closing done")
 	}
 }

collectors/likwidMetric.md

@@ -10,6 +10,7 @@ The `likwid` collector is probably the most complicated collector. The LIKWID li
     "liblikwid_path" : "/path/to/liblikwid.so",
     "accessdaemon_path" : "/folder/that/contains/likwid-accessD",
     "access_mode" : "direct or accessdaemon or perf_event",
+    "lockfile_path" : "/var/run/likwid.lock",
     "eventsets": [
       {
         "events" : {
@@ -41,7 +42,7 @@ The `likwid` collector is probably the most complicated collector. The LIKWID li
 
 The `likwid` configuration consists of two parts, the `eventsets` and `globalmetrics`:
 - An event set list itself has two parts, the `events` and a set of derivable `metrics`. Each of the `events` is a `counter:event` pair in LIKWID's syntax. The `metrics` are a list of formulas to derive the metric value from the measurements of the `events`' values. Each metric has a name, the formula, a type and a publish flag. There is an optional `unit` field. Counter names can be used like variables in the formulas, so `PMC0+PMC1` sums the measurements for the both events configured in the counters `PMC0` and `PMC1`. You can optionally use `time` for the measurement time and `inverseClock` for `1.0/baseCpuFrequency`. The type tells the LikwidCollector whether it is a metric for each hardware thread (`cpu`) or each CPU socket (`socket`). You may specify a unit for the metric with `unit`. The last one is the publishing flag. It tells the LikwidCollector whether a metric should be sent to the router or is only used internally to compute a global metric.
-- The `globalmetrics` are metrics which require data from multiple event set measurements to be derived. The inputs are the metrics in the event sets. Similar to the metrics in the event sets, the global metrics are defined by a name, a formula, a scope and a publish flag. See event set metrics for details. The only difference is that there is no access to the raw event measurements anymore but only to the metrics. Also `time` and `inverseClock` cannot be used anymore. So, the idea is to derive a metric in the `eventsets` section and reuse it in the `globalmetrics` part. If you need a metric only for deriving the global metrics, disable forwarding of the event set metrics (`"publish": false`). **Be aware** that the combination might be misleading because the "behavior" of a metric changes over time and the multiple measurements might count different computing phases. Similar to the metrics in the eventset, you can specify a metric unit with the `unit` field.
+- The `globalmetrics` are metrics which require data from multiple event set measurements to be derived. The inputs are the metrics in the event sets. Similar to the metrics in the event sets, the global metrics are defined by a name, a formula, a type and a publish flag. See event set metrics for details. The only difference is that there is no access to the raw event measurements anymore but only to the metrics. Also `time` and `inverseClock` cannot be used anymore. So, the idea is to derive a metric in the `eventsets` section and reuse it in the `globalmetrics` part. If you need a metric only for deriving the global metrics, disable forwarding of the event set metrics (`"publish": false`). **Be aware** that the combination might be misleading because the "behavior" of a metric changes over time and the multiple measurements might count different computing phases. Similar to the metrics in the eventset, you can specify a metric unit with the `unit` field.
 
 Additional options:
 - `force_overwrite`: Same as setting `LIKWID_FORCE=1`. In case counters are already in-use, LIKWID overwrites their configuration to do its measurements
@@ -49,21 +50,22 @@ Additional options:
 - `access_mode`: Specify LIKWID access mode: `direct` for direct register access as root user or `accessdaemon`. The access mode `perf_event` is current untested.
 - `accessdaemon_path`: Folder of the accessDaemon `likwid-accessD` (like `/usr/local/sbin`)
 - `liblikwid_path`: Location of `liblikwid.so` including file name like `/usr/local/lib/liblikwid.so`
+- `lockfile_path`: Location of LIKWID's lock file if multiple tools should access the hardware counters. Default `/var/run/likwid.lock`
 
-### Available metric scopes
+### Available metric types
 
 Hardware performance counters are scattered all over the system nowadays. A counter coveres a specific part of the system. While there are hardware thread specific counter for CPU cycles, instructions and so on, some others are specific for a whole CPU socket/package. To address that, the LikwidCollector provides the specification of a `type` for each metric.
 
 - `hwthread` : One metric per CPU hardware thread with the tags `"type" : "hwthread"` and `"type-id" : "$hwthread_id"`
 - `socket` : One metric per CPU socket/package with the tags `"type" : "socket"` and `"type-id" : "$socket_id"`
 
-**Note:** You cannot specify `socket` scope for a metric that is measured at `hwthread` scope, so some kind of expert knowledge or lookup work in the [Likwid Wiki](https://github.com/RRZE-HPC/likwid/wiki) is required. Get the scope of each counter from the *Architecture* pages and as soon as one counter in a metric is socket-specific, the whole metric is socket-specific.
+**Note:** You cannot specify `socket` type for a metric that is measured at `hwthread` type, so some kind of expert knowledge or lookup work in the [Likwid Wiki](https://github.com/RRZE-HPC/likwid/wiki) is required. Get the type of each counter from the *Architecture* pages and as soon as one counter in a metric is socket-specific, the whole metric is socket-specific.
 
 As a guideline:
-- All counters `FIXCx`, `PMCy` and `TMAz` have the scope `hwthread`
-- All counters names containing `BOX` have the scope `socket`
-- All `PWRx` counters have scope `socket`, except `"PWR1" : "RAPL_CORE_ENERGY"` has `hwthread` scope
-- All `DFCx` counters have scope `socket`
+- All counters `FIXCx`, `PMCy` and `TMAz` have the type `hwthread`
+- All counters names containing `BOX` have the type `socket`
+- All `PWRx` counters have type `socket`, except `"PWR1" : "RAPL_CORE_ENERGY"` has `hwthread` type
+- All `DFCx` counters have type `socket`
 
 ### Help with the configuration
 
@@ -93,7 +95,7 @@ $ scripts/likwid_perfgroup_to_cc_config.py ICX MEM_DP
       "name": "Runtime (RDTSC) [s]",
       "publish": true,
       "unit": "seconds"
-      "scope": "hwthread"
+      "type": "hwthread"
     },
     {
       "..." : "..."
@@ -245,7 +247,7 @@ METRICS                          ->   "metrics": [
 IPC   PMC0/PMC1                  ->     {
                                  ->       "name" : "IPC",
                                  ->       "calc" : "PMC0/PMC1",
-                                 ->       "scope": "hwthread",
+                                 ->       "type": "hwthread",
                                  ->       "publish": true
                                  ->     }
                                  ->   ]

collectors/nfsiostatMetric.go

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

collectors/nfsiostatMetric.md

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

collectors/numastatsMetric.go

@@ -14,29 +14,38 @@ import (
 	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
 )
 
-//
-// Numa policy hit/miss statistics
+// Non-Uniform Memory Access (NUMA) policy hit/miss statistics
 //
 // numa_hit:
-//   A process wanted to allocate memory from this node, and succeeded.
+//
+//	A process wanted to allocate memory from this node, and succeeded.
+//
 // numa_miss:
-//   A process wanted to allocate memory from another node,
-//   but ended up with memory from this node.
+//
+//	A process wanted to allocate memory from another node,
+//	but ended up with memory from this node.
+//
 // numa_foreign:
-//   A process wanted to allocate on this node,
-//   but ended up with memory from another node.
+//
+//	A process wanted to allocate on this node,
+//	but ended up with memory from another node.
+//
 // local_node:
-//   A process ran on this node's CPU,
-//   and got memory from this node.
+//
+//	A process ran on this node's CPU,
+//	and got memory from this node.
+//
 // other_node:
-//   A process ran on a different node's CPU
-//   and got memory from this node.
+//
+//	A process ran on a different node's CPU
+//	and got memory from this node.
+//
 // interleave_hit:
-//   Interleaving wanted to allocate from this node
-//   and succeeded.
+//
+//	Interleaving wanted to allocate from this node
+//	and succeeded.
 //
 // See: https://www.kernel.org/doc/html/latest/admin-guide/numastat.html
-//
 type NUMAStatsCollectorTopolgy struct {
 	file   string
 	tagSet map[string]string
@@ -82,6 +91,8 @@ func (m *NUMAStatsCollector) Init(config json.RawMessage) error {
 			})
 	}
 
+	// Initialized
+	cclog.ComponentDebug(m.name, "initialized", len(m.topology), "NUMA domains")
 	m.init = true
 	return nil
 }

collectors/numastatsMetric.md

@@ -1,15 +1,17 @@
 
 ## `numastat` collector
+
 ```json
-  "numastat": {}
+  "numastats": {}
 ```
 
-The `numastat` collector reads data from `/sys/devices/system/node/node*/numastat` and outputs a handful **memoryDomain** metrics. See: https://www.kernel.org/doc/html/latest/admin-guide/numastat.html
+The `numastat` collector reads data from `/sys/devices/system/node/node*/numastat` and outputs a handful **memoryDomain** metrics. See: <https://www.kernel.org/doc/html/latest/admin-guide/numastat.html>
 
 Metrics:
+
 * `numastats_numa_hit`: A process wanted to allocate memory from this node, and succeeded.
 * `numastats_numa_miss`: A process wanted to allocate memory from another node, but ended up with memory from this node.
 * `numastats_numa_foreign`: A process wanted to allocate on this node, but ended up with memory from another node.
 * `numastats_local_node`: A process ran on this node's CPU, and got memory from this node.
 * `numastats_other_node`: A process ran on a different node's CPU, and got memory from this node.
-* `numastats_interleave_hit`: Interleaving wanted to allocate from this node and succeeded.
+* `numastats_interleave_hit`: Interleaving wanted to allocate from this node and succeeded.

collectors/raplMetric.go

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

collectors/raplMetric.md

@@ -0,0 +1,18 @@
+# Running average power limit (RAPL) metric collector
+
+This collector reads running average power limit (RAPL) monitoring attributes to compute average power consumption metrics. See <https://www.kernel.org/doc/html/latest/power/powercap/powercap.html#monitoring-attributes>.
+
+The Likwid metric collector provides similar functionality.
+
+## Configuration
+
+```json
+  "rapl": {
+    "exclude_device_by_id": ["0:1", "0:2"],
+    "exclude_device_by_name": ["psys"]
+  }
+```
+
+## Metrics
+
+* `rapl_average_power`: average power consumption in Watt. The average is computed over the entire runtime from the last measurement to the current measurement

collectors/sampleMetric.go

@@ -17,9 +17,9 @@ type SampleCollectorConfig struct {
 // defined by metricCollector (name, init, ...)
 type SampleCollector struct {
 	metricCollector
-	config SampleTimerCollectorConfig // the configuration structure
-	meta   map[string]string          // default meta information
-	tags   map[string]string          // default tags
+	config SampleCollectorConfig // the configuration structure
+	meta   map[string]string     // default meta information
+	tags   map[string]string     // default tags
 }
 
 // Functions to implement MetricCollector interface
@@ -36,14 +36,14 @@ func (m *SampleCollector) Init(config json.RawMessage) error {
 	// This is for later use, also call it early
 	m.setup()
 	// Tell whether the collector should be run in parallel with others (reading files, ...)
-	// or it should be run serially, mostly for collectors acutally doing measurements
+	// or it should be run serially, mostly for collectors actually doing measurements
 	// because they should not measure the execution of the other collectors
 	m.parallel = true
 	// Define meta information sent with each metric
 	// (Can also be dynamic or this is the basic set with extension through AddMeta())
 	m.meta = map[string]string{"source": m.name, "group": "SAMPLE"}
 	// Define tags sent with each metric
-	// The 'type' tag is always needed, it defines the granulatity of the metric
+	// The 'type' tag is always needed, it defines the granularity of the metric
 	// node -> whole system
 	// socket -> CPU socket (requires socket ID as 'type-id' tag)
 	// die -> CPU die (requires CPU die ID as 'type-id' tag)

collectors/sampleTimerMetric.go

@@ -38,7 +38,7 @@ func (m *SampleTimerCollector) Init(name string, config json.RawMessage) error {
 	// (Can also be dynamic or this is the basic set with extension through AddMeta())
 	m.meta = map[string]string{"source": m.name, "group": "SAMPLE"}
 	// Define tags sent with each metric
-	// The 'type' tag is always needed, it defines the granulatity of the metric
+	// The 'type' tag is always needed, it defines the granularity of the metric
 	// node -> whole system
 	// socket -> CPU socket (requires socket ID as 'type-id' tag)
 	// cpu -> single CPU hardware thread (requires cpu ID as 'type-id' tag)
@@ -60,7 +60,7 @@ func (m *SampleTimerCollector) Init(name string, config json.RawMessage) error {
 
 	// Storage for output channel
 	m.output = nil
-	// Mangement channel for the timer function.
+	// Management channel for the timer function.
 	m.done = make(chan bool)
 	// Create the own ticker
 	m.ticker = time.NewTicker(m.interval)
@@ -94,7 +94,7 @@ func (m *SampleTimerCollector) ReadMetrics(timestamp time.Time) {
 
 	value := 1.0
 
-	// If you want to measure something for a specific amout of time, use interval
+	// If you want to measure something for a specific amount of time, use interval
 	// start := readState()
 	// time.Sleep(interval)
 	// stop := readState()

collectors/selfMetric.go

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

collectors/selfMetric.md

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

collectors/smartmonMetric.go

@@ -1,220 +0,0 @@
-package collectors
-
-import (
-	"encoding/json"
-	"os/exec"
-	"time"
-
-	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
-	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
-)
-
-type SmartMonCollectorConfig struct {
-	UseSudo        bool     `json:"use_sudo"`
-	ExcludeDevices []string `json:"exclude_devices"`
-}
-
-type SmartMonCollector struct {
-	metricCollector
-	config      SmartMonCollectorConfig // the configuration structure
-	meta        map[string]string       // default meta information
-	tags        map[string]string       // default tags
-	devices     []string                // smartmon devices
-	sudoCmd     string                  // Full path to 'sudo' command
-	smartCtlCmd string                  // Full path to 'smartctl' command
-}
-
-func (m *SmartMonCollector) getSmartmonDevices() error {
-	var command *exec.Cmd
-	var scan struct {
-		Devices []struct {
-			Name string `json:"name"`
-			Type string `json:"type"`
-		} `json:"devices"`
-	}
-	m.devices = make([]string, 0)
-	if m.config.UseSudo {
-		command = exec.Command(m.sudoCmd, m.smartCtlCmd, "--scan", "-j")
-	} else {
-		command = exec.Command(m.smartCtlCmd, "--scan", "-j")
-	}
-	command.Wait()
-	stdout, err := command.Output()
-	if err != nil {
-		return err
-	}
-	err = json.Unmarshal(stdout, &scan)
-	if err != nil {
-		return err
-	}
-	for _, d := range scan.Devices {
-		if len(d.Name) > 0 {
-			m.devices = append(m.devices, d.Name)
-		}
-	}
-
-	return nil
-}
-
-func (m *SmartMonCollector) Init(config json.RawMessage) error {
-	var err error = nil
-	m.name = "SmartMonCollector"
-	m.setup()
-	m.parallel = true
-	m.meta = map[string]string{"source": m.name, "group": "Disk"}
-	m.tags = map[string]string{"type": "node", "stype": "disk"}
-	// Read in the JSON configuration
-	if len(config) > 0 {
-		err = json.Unmarshal(config, &m.config)
-		if err != nil {
-			cclog.ComponentError(m.name, "Error reading config:", err.Error())
-			return err
-		}
-	}
-	if m.config.UseSudo {
-		p, err := exec.LookPath("sudo")
-		if err != nil {
-			return err
-		}
-		m.sudoCmd = p
-	}
-	p, err := exec.LookPath("smartctl")
-	if err != nil {
-		return err
-	}
-	m.smartCtlCmd = p
-	err = m.getSmartmonDevices()
-	if err != nil {
-		return err
-	}
-
-	m.init = true
-	return err
-}
-
-type SmartMonData struct {
-	SerialNumber string `json:"serial_number"`
-	UserCapacity struct {
-		Blocks int `json:"blocks"`
-		Bytes  int `json:"bytes"`
-	} `json:"user_capacity"`
-	HealthLog struct {
-		Temperature        int `json:"temperature"`
-		PercentageUsed     int `json:"percentage_used"`
-		AvailableSpare     int `json:"available_spare"`
-		DataUnitsRead      int `json:"data_units_read"`
-		DataUnitsWrite     int `json:"data_units_written"`
-		HostReads          int `json:"host_reads"`
-		HostWrites         int `json:"host_writes"`
-		PowerCycles        int `json:"power_cycles"`
-		PowerOnHours       int `json:"power_on_hours"`
-		UnsafeShutdowns    int `json:"unsafe_shutdowns"`
-		MediaErrors        int `json:"media_errors"`
-		NumErrorLogEntries int `json:"num_err_log_entries"`
-		WarnTempTime       int `json:"warning_temp_time"`
-		CriticalTempTime   int `json:"critical_comp_time"`
-	} `json:"nvme_smart_health_information_log"`
-}
-
-func (m *SmartMonCollector) Read(interval time.Duration, output chan lp.CCMetric) {
-	timestamp := time.Now()
-	for _, d := range m.devices {
-		var command *exec.Cmd
-		var data SmartMonData
-		if m.config.UseSudo {
-			command = exec.Command(m.sudoCmd, m.smartCtlCmd, "-j", "-a", d)
-		} else {
-			command = exec.Command(m.smartCtlCmd, "-j", "-a", d)
-		}
-		command.Wait()
-		stdout, err := command.Output()
-		if err != nil {
-			cclog.ComponentError(m.name, "cannot read data for device", d)
-			continue
-		}
-		err = json.Unmarshal(stdout, &data)
-		if err != nil {
-			cclog.ComponentError(m.name, "cannot unmarshal data for device", d)
-			continue
-		}
-		y, err := lp.New("smartmon_temp", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.Temperature}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			y.AddMeta("unit", "degC")
-			output <- y
-		}
-		y, err = lp.New("smartmon_percent_used", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.PercentageUsed}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			y.AddMeta("unit", "percent")
-			output <- y
-		}
-		y, err = lp.New("smartmon_avail_spare", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.AvailableSpare}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			y.AddMeta("unit", "percent")
-			output <- y
-		}
-		y, err = lp.New("smartmon_data_units_read", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.DataUnitsRead}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			output <- y
-		}
-		y, err = lp.New("smartmon_data_units_write", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.DataUnitsWrite}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			output <- y
-		}
-		y, err = lp.New("smartmon_host_reads", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.HostReads}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			output <- y
-		}
-		y, err = lp.New("smartmon_host_writes", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.HostWrites}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			output <- y
-		}
-		y, err = lp.New("smartmon_power_cycles", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.PowerCycles}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			output <- y
-		}
-		y, err = lp.New("smartmon_power_on", m.tags, m.meta, map[string]interface{}{"value": int64(data.HealthLog.PowerOnHours) * 3600}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			y.AddMeta("unit", "seconds")
-			output <- y
-		}
-		y, err = lp.New("smartmon_unsafe_shutdowns", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.UnsafeShutdowns}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			output <- y
-		}
-		y, err = lp.New("smartmon_media_errors", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.MediaErrors}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			output <- y
-		}
-		y, err = lp.New("smartmon_errlog_entries", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.NumErrorLogEntries}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			output <- y
-		}
-		y, err = lp.New("smartmon_warn_temp_time", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.WarnTempTime}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			output <- y
-		}
-		y, err = lp.New("smartmon_crit_temp_time", m.tags, m.meta, map[string]interface{}{"value": data.HealthLog.CriticalTempTime}, timestamp)
-		if err == nil {
-			y.AddTag("stype-id", d)
-			output <- y
-		}
-	}
-
-}
-
-func (m *SmartMonCollector) Close() {
-	m.init = false
-}

collectors/smartmonMetric.md

@@ -1,29 +0,0 @@
-## `smartmon` collector
-
-```json
-  "smartmon": {
-    "use_sudo" : true,
-    "exclude_devices": [
-      "/dev/sda",
-    ]
-  }
-```
-
-The `smartmon` collector reads the data from the command `smartctl`. It retrieves S.M.A.R.T data from disks
-
-Metrics:
-* `smartmon_temp`: Temperature of the device (`unit=degC`)
-* `smartmon_avail_spare`: Amount of spare left (`unit=percent`)
-* `smartmon_percent_used`: Percentage of the device is used (`unit=percent`)
-* `smartmon_data_units_read`: Read data units
-* `smartmon_data_units_write`: Written data units
-* `smartmon_host_reads`: Read operations
-* `smartmon_host_writes`: Write operations
-* `smartmon_power_cycles`: Number of power cycles
-* `smartmon_power_on`: Seconds the device is powered on (`unit=seconds`)
-* `smartmon_unsafe_shutdowns`: Count of unsafe shutdowns
-* `smartmon_media_errors`: Media errors of the device
-* `smartmon_errlog_entries`: Error log entries
-* `smartmon_warn_temp_time`: Time above the warning temperature threshold
-* `smartmon_crit_temp_time`: Time above the critical temperature threshold
-

docs/building.md

@@ -37,7 +37,9 @@ $ install --mode 644  \
 $ systemctl enable cc-metric-collector
 ```
 
-## RPM
+## Packaging
+
+### RPM
 
 In order to get a RPM packages for cc-metric-collector, just use:
 
@@ -47,7 +49,7 @@ $ make RPM
 
 It uses the RPM SPEC file `scripts/cc-metric-collector.spec` and requires the RPM tools (`rpm` and `rpmspec`) and `git`.
 
-## DEB
+### DEB
 
 In order to get very simple Debian packages for cc-metric-collector, just use:
 
@@ -57,4 +59,16 @@ $ make DEB
 
 It uses the DEB control file `scripts/cc-metric-collector.control` and requires `dpkg-deb`, `awk`, `sed` and `git`. It creates only a binary deb package.
 
-_This option is not well tested and therefore experimental_
+_This option is not well tested and therefore experimental_
+
+### Customizing RPMs or DEB packages
+
+If you want to customize the RPMs or DEB packages for your local system, use the following workflow.
+
+- (if there is already a fork in the private account, delete it and wait until Github realizes the deletion)
+- Fork the cc-metric-collector repository (if Github hasn't realized it, it creates a fork named cc-metric-collector2)
+- Go to private cc-metric-collector repository and enable Github Actions
+- Do changes to the scripts, code, ... Commit and push your changes.
+- Tag the new commit with `v0.x.y-<myversion>` (`git tag v0.x.y-<myversion>`)
+- Push tags to repository (`git push --tags`)
+- Wait until the Release action finishes. It creates fresh RPMs and DEBs in your private repository on the Releases page.

go.mod

@@ -3,38 +3,71 @@ module github.com/ClusterCockpit/cc-metric-collector
 go 1.18
 
 require (
-	github.com/ClusterCockpit/cc-units v0.3.0
+	github.com/ClusterCockpit/cc-units v0.4.0
 	github.com/ClusterCockpit/go-rocm-smi v0.3.0
-	github.com/NVIDIA/go-nvml v0.11.6-0
-	github.com/PaesslerAG/gval v1.2.0
+	github.com/NVIDIA/go-nvml v0.12.0-1
+	github.com/PaesslerAG/gval v1.2.2
 	github.com/gorilla/mux v1.8.0
-	github.com/influxdata/influxdb-client-go/v2 v2.9.1
+	github.com/influxdata/influxdb-client-go/v2 v2.12.3
 	github.com/influxdata/line-protocol v0.0.0-20210922203350-b1ad95c89adf
-	github.com/nats-io/nats.go v1.16.0
-	github.com/prometheus/client_golang v1.12.2
-	github.com/stmcginnis/gofish v0.13.0
-	github.com/tklauser/go-sysconf v0.3.10
-	golang.org/x/sys v0.0.0-20220712014510-0a85c31ab51e
+	github.com/influxdata/line-protocol/v2 v2.2.1
+	github.com/nats-io/nats.go v1.28.0
+	github.com/prometheus/client_golang v1.16.0
+	github.com/stmcginnis/gofish v0.14.0
+	github.com/tklauser/go-sysconf v0.3.12
+	golang.design/x/thread v0.0.0-20210122121316-335e9adffdf1
+	golang.org/x/exp v0.0.0-20230811145659-89c5cff77bcb
+	golang.org/x/sys v0.11.0
+	gopkg.in/fsnotify.v1 v1.4.7
 )
 
 require (
+	github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/cespare/xxhash/v2 v2.1.2 // indirect
-	github.com/deepmap/oapi-codegen v1.11.0 // indirect
-	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/bytedance/sonic v1.10.0 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d // indirect
+	github.com/chenzhuoyu/iasm v0.9.0 // indirect
+	github.com/deepmap/oapi-codegen v1.13.4 // indirect
+	github.com/fsnotify/fsnotify v1.6.0 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.2 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/gin-gonic/gin v1.9.1 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.15.0 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/google/uuid v1.3.0 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/compress v1.16.7 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.5 // indirect
+	github.com/labstack/echo/v4 v4.11.1 // indirect
+	github.com/labstack/gommon v0.4.0 // indirect
+	github.com/leodido/go-urn v1.2.4 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.19 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/nats-io/nats-server/v2 v2.8.4 // indirect
-	github.com/nats-io/nkeys v0.3.0 // indirect
+	github.com/nats-io/nkeys v0.4.4 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.9 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	github.com/prometheus/client_model v0.2.0 // indirect
-	github.com/prometheus/common v0.37.0 // indirect
-	github.com/prometheus/procfs v0.7.3 // indirect
+	github.com/prometheus/client_model v0.4.0 // indirect
+	github.com/prometheus/common v0.44.0 // indirect
+	github.com/prometheus/procfs v0.11.1 // indirect
 	github.com/shopspring/decimal v1.3.1 // indirect
-	github.com/tklauser/numcpus v0.4.0 // indirect
-	golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d // indirect
-	golang.org/x/net v0.0.0-20220708220712-1185a9018129 // indirect
-	google.golang.org/protobuf v1.28.0 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
+	github.com/tklauser/numcpus v0.6.1 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.11 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasttemplate v1.2.2 // indirect
+	golang.org/x/arch v0.4.0 // indirect
+	golang.org/x/crypto v0.12.0 // indirect
+	golang.org/x/net v0.14.0 // indirect
+	golang.org/x/text v0.12.0 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,624 +1,195 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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-honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
-honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
-honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
-rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
-rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
-rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+nullprogram.com/x/optparse v1.0.0/go.mod h1:KdyPE+Igbe0jQUrVfMqDMeJQIJZEuyV7pjYmp6pbG50=
+rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=

internal/metricAggregator/metricAggregator.go

@@ -121,7 +121,12 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 	vars["endtime"] = endtime
 	for _, f := range c.functions {
 		cclog.ComponentDebug("MetricCache", "COLLECT", f.Name, "COND", f.Condition)
-		values := make([]float64, 0)
+		var valuesFloat64 []float64
+		var valuesFloat32 []float32
+		var valuesInt []int
+		var valuesInt32 []int32
+		var valuesInt64 []int64
+		var valuesBool []bool
 		matches := make([]lp.CCMetric, 0)
 		for _, m := range metrics {
 			vars["metric"] = m
@@ -136,17 +141,17 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 				if valid {
 					switch x := v.(type) {
 					case float64:
-						values = append(values, x)
+						valuesFloat64 = append(valuesFloat64, x)
 					case float32:
+						valuesFloat32 = append(valuesFloat32, x)
 					case int:
+						valuesInt = append(valuesInt, x)
+					case int32:
+						valuesInt32 = append(valuesInt32, x)
 					case int64:
-						values = append(values, float64(x))
+						valuesInt64 = append(valuesInt64, x)
 					case bool:
-						if x {
-							values = append(values, float64(1.0))
-						} else {
-							values = append(values, float64(0.0))
-						}
+						valuesBool = append(valuesBool, x)
 					default:
 						cclog.ComponentError("MetricCache", "COLLECT ADD VALUE", v, "FAILED")
 					}
@@ -155,13 +160,59 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 			}
 		}
 		delete(vars, "metric")
-		cclog.ComponentDebug("MetricCache", "EVALUATE", f.Name, "METRICS", len(values), "CALC", f.Function)
-		vars["values"] = values
+
+		// Check, that only values of one type were collected
+		countValueTypes := 0
+		if len(valuesFloat64) > 0 {
+			countValueTypes += 1
+		}
+		if len(valuesFloat32) > 0 {
+			countValueTypes += 1
+		}
+		if len(valuesInt) > 0 {
+			countValueTypes += 1
+		}
+		if len(valuesInt32) > 0 {
+			countValueTypes += 1
+		}
+		if len(valuesInt64) > 0 {
+			countValueTypes += 1
+		}
+		if len(valuesBool) > 0 {
+			countValueTypes += 1
+		}
+		if countValueTypes > 1 {
+			cclog.ComponentError("MetricCache", "Collected values of different types")
+		}
+
+		var len_values int
+		switch {
+		case len(valuesFloat64) > 0:
+			vars["values"] = valuesFloat64
+			len_values = len(valuesFloat64)
+		case len(valuesFloat32) > 0:
+			vars["values"] = valuesFloat32
+			len_values = len(valuesFloat32)
+		case len(valuesInt) > 0:
+			vars["values"] = valuesInt
+			len_values = len(valuesInt)
+		case len(valuesInt32) > 0:
+			vars["values"] = valuesInt32
+			len_values = len(valuesInt32)
+		case len(valuesInt64) > 0:
+			vars["values"] = valuesInt64
+			len_values = len(valuesInt64)
+		case len(valuesBool) > 0:
+			vars["values"] = valuesBool
+			len_values = len(valuesBool)
+		}
+		cclog.ComponentDebug("MetricCache", "EVALUATE", f.Name, "METRICS", len_values, "CALC", f.Function)
+
 		vars["metrics"] = matches
-		if len(values) > 0 {
+		if len_values > 0 {
 			value, err := gval.Evaluate(f.Function, vars, c.language)
 			if err != nil {
-				cclog.ComponentError("MetricCache", "EVALUATE", f.Name, "METRICS", len(values), "CALC", f.Function, ":", err.Error())
+				cclog.ComponentError("MetricCache", "EVALUATE", f.Name, "METRICS", len_values, "CALC", f.Function, ":", err.Error())
 				break
 			}
 

internal/metricAggregator/metricAggregatorFunctions.go

@@ -3,12 +3,11 @@ package metricAggregator
 import (
 	"errors"
 	"fmt"
-	"math"
 	"regexp"
-	"sort"
 	"strings"
 
-	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
+	"golang.org/x/exp/slices"
+
 	topo "github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
 )
 
@@ -16,149 +15,155 @@ import (
  * Arithmetic functions on value arrays
  */
 
-// Sum up values
-func sumfunc(args ...interface{}) (interface{}, error) {
-	s := 0.0
-	values, ok := args[0].([]float64)
-	if ok {
-		cclog.ComponentDebug("MetricCache", "SUM FUNC START")
-		for _, x := range values {
-			s += x
-		}
-		cclog.ComponentDebug("MetricCache", "SUM FUNC END", s)
-	} else {
-		cclog.ComponentDebug("MetricCache", "SUM FUNC CAST FAILED")
+func sumAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error) {
+	if len(values) == 0 {
+		return 0.0, errors.New("sum function requires at least one argument")
 	}
-	return s, nil
+	var sum T
+	for _, value := range values {
+		sum += value
+	}
+	return sum, nil
 }
 
-// Get the minimum value
-func minfunc(args ...interface{}) (interface{}, error) {
-	var err error = nil
-	switch values := args[0].(type) {
+// Sum up values
+func sumfunc(args interface{}) (interface{}, error) {
+
+	var err error
+	switch values := args.(type) {
 	case []float64:
-		var s float64 = math.MaxFloat64
-		for _, x := range values {
-			if x < s {
-				s = x
-			}
-		}
-		return s, nil
+		return sumAnyType(values)
 	case []float32:
-		var s float32 = math.MaxFloat32
-		for _, x := range values {
-			if x < s {
-				s = x
-			}
-		}
-		return s, nil
+		return sumAnyType(values)
 	case []int:
-		var s int = int(math.MaxInt32)
-		for _, x := range values {
-			if x < s {
-				s = x
-			}
-		}
-		return s, nil
+		return sumAnyType(values)
 	case []int64:
-		var s int64 = math.MaxInt64
-		for _, x := range values {
-			if x < s {
-				s = x
-			}
-		}
-		return s, nil
+		return sumAnyType(values)
 	case []int32:
-		var s int32 = math.MaxInt32
-		for _, x := range values {
-			if x < s {
-				s = x
-			}
-		}
-		return s, nil
+		return sumAnyType(values)
 	default:
-		err = errors.New("function 'min' only on list of values (float64, float32, int, int32, int64)")
+		err = errors.New("function 'sum' only on list of values (float64, float32, int, int32, int64)")
 	}
 
 	return 0.0, err
 }
 
-// Get the average or mean value
-func avgfunc(args ...interface{}) (interface{}, error) {
-	switch values := args[0].(type) {
-	case []float64:
-		var s float64 = 0
-		for _, x := range values {
-			s += x
-		}
-		return s / float64(len(values)), nil
-	case []float32:
-		var s float32 = 0
-		for _, x := range values {
-			s += x
-		}
-		return s / float32(len(values)), nil
-	case []int:
-		var s int = 0
-		for _, x := range values {
-			s += x
-		}
-		return s / len(values), nil
-	case []int64:
-		var s int64 = 0
-		for _, x := range values {
-			s += x
-		}
-		return s / int64(len(values)), nil
+func minAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error) {
+	if len(values) == 0 {
+		return 0.0, errors.New("min function requires at least one argument")
 	}
-	return 0.0, nil
+	return slices.Min(values), nil
+}
+
+// Get the minimum value
+func minfunc(args interface{}) (interface{}, error) {
+	switch values := args.(type) {
+	case []float64:
+		return minAnyType(values)
+	case []float32:
+		return minAnyType(values)
+	case []int:
+		return minAnyType(values)
+	case []int64:
+		return minAnyType(values)
+	case []int32:
+		return minAnyType(values)
+	default:
+		return 0.0, errors.New("function 'min' only on list of values (float64, float32, int, int32, int64)")
+	}
+}
+
+func avgAnyType[T float64 | float32 | int | int32 | int64](values []T) (float64, error) {
+	if len(values) == 0 {
+		return 0.0, errors.New("average function requires at least one argument")
+	}
+	sum, err := sumAnyType[T](values)
+	return float64(sum) / float64(len(values)), err
+}
+
+// Get the average or mean value
+func avgfunc(args interface{}) (interface{}, error) {
+	switch values := args.(type) {
+	case []float64:
+		return avgAnyType(values)
+	case []float32:
+		return avgAnyType(values)
+	case []int:
+		return avgAnyType(values)
+	case []int64:
+		return avgAnyType(values)
+	case []int32:
+		return avgAnyType(values)
+	default:
+		return 0.0, errors.New("function 'average' only on list of values (float64, float32, int, int32, int64)")
+	}
+}
+
+func maxAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error) {
+	if len(values) == 0 {
+		return 0.0, errors.New("max function requires at least one argument")
+	}
+	return slices.Max(values), nil
 }
 
 // Get the maximum value
-func maxfunc(args ...interface{}) (interface{}, error) {
-	s := 0.0
-	values, ok := args[0].([]float64)
-	if ok {
-		for _, x := range values {
-			if x > s {
-				s = x
-			}
-		}
+func maxfunc(args interface{}) (interface{}, error) {
+	switch values := args.(type) {
+	case []float64:
+		return maxAnyType(values)
+	case []float32:
+		return maxAnyType(values)
+	case []int:
+		return maxAnyType(values)
+	case []int64:
+		return maxAnyType(values)
+	case []int32:
+		return maxAnyType(values)
+	default:
+		return 0.0, errors.New("function 'max' only on list of values (float64, float32, int, int32, int64)")
 	}
-	return s, nil
+}
+
+func medianAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error) {
+	if len(values) == 0 {
+		return 0.0, errors.New("median function requires at least one argument")
+	}
+	slices.Sort(values)
+	var median T
+	if midPoint := len(values) % 2; midPoint == 0 {
+		median = (values[midPoint-1] + values[midPoint]) / 2
+	} else {
+		median = values[midPoint]
+	}
+	return median, nil
 }
 
 // Get the median value
-func medianfunc(args ...interface{}) (interface{}, error) {
-	switch values := args[0].(type) {
+func medianfunc(args interface{}) (interface{}, error) {
+	switch values := args.(type) {
 	case []float64:
-		sort.Float64s(values)
-		return values[len(values)/2], nil
-	// case []float32:
-	// 	sort.Float64s(values)
-	// 	return values[len(values)/2], nil
+		return medianAnyType(values)
+	case []float32:
+		return medianAnyType(values)
 	case []int:
-		sort.Ints(values)
-		return values[len(values)/2], nil
-
-		// case []int64:
-		// 	sort.Ints(values)
-		// 	return values[len(values)/2], nil
-		// case []int32:
-		// 	sort.Ints(values)
-		// 	return values[len(values)/2], nil
+		return medianAnyType(values)
+	case []int64:
+		return medianAnyType(values)
+	case []int32:
+		return medianAnyType(values)
+	default:
+		return 0.0, errors.New("function 'median' only on list of values (float64, float32, int, int32, int64)")
 	}
-	return 0.0, errors.New("function 'median()' only on lists of type float64 and int")
 }
 
 /*
  * Get number of values in list. Returns always an int
  */
 
-func lenfunc(args ...interface{}) (interface{}, error) {
+func lenfunc(args interface{}) (interface{}, error) {
 	var err error = nil
 	var length int = 0
-	switch values := args[0].(type) {
+	switch values := args.(type) {
 	case []float64:
 		length = len(values)
 	case []float32:
@@ -243,8 +248,8 @@ func matchfunc(args ...interface{}) (interface{}, error) {
  */
 
 // for a given cpuid, it returns the core id
-func getCpuCoreFunc(args ...interface{}) (interface{}, error) {
-	switch cpuid := args[0].(type) {
+func getCpuCoreFunc(args interface{}) (interface{}, error) {
+	switch cpuid := args.(type) {
 	case int:
 		return topo.GetHwthreadCore(cpuid), nil
 	}
@@ -252,8 +257,8 @@ func getCpuCoreFunc(args ...interface{}) (interface{}, error) {
 }
 
 // for a given cpuid, it returns the socket id
-func getCpuSocketFunc(args ...interface{}) (interface{}, error) {
-	switch cpuid := args[0].(type) {
+func getCpuSocketFunc(args interface{}) (interface{}, error) {
+	switch cpuid := args.(type) {
 	case int:
 		return topo.GetHwthreadSocket(cpuid), nil
 	}
@@ -261,8 +266,8 @@ func getCpuSocketFunc(args ...interface{}) (interface{}, error) {
 }
 
 // for a given cpuid, it returns the id of the NUMA node
-func getCpuNumaDomainFunc(args ...interface{}) (interface{}, error) {
-	switch cpuid := args[0].(type) {
+func getCpuNumaDomainFunc(args interface{}) (interface{}, error) {
+	switch cpuid := args.(type) {
 	case int:
 		return topo.GetHwthreadNumaDomain(cpuid), nil
 	}
@@ -270,8 +275,8 @@ func getCpuNumaDomainFunc(args ...interface{}) (interface{}, error) {
 }
 
 // for a given cpuid, it returns the id of the CPU die
-func getCpuDieFunc(args ...interface{}) (interface{}, error) {
-	switch cpuid := args[0].(type) {
+func getCpuDieFunc(args interface{}) (interface{}, error) {
+	switch cpuid := args.(type) {
 	case int:
 		return topo.GetHwthreadDie(cpuid), nil
 	}
@@ -279,9 +284,9 @@ func getCpuDieFunc(args ...interface{}) (interface{}, error) {
 }
 
 // for a given core id, it returns the list of cpuids
-func getCpuListOfCoreFunc(args ...interface{}) (interface{}, error) {
+func getCpuListOfCoreFunc(args interface{}) (interface{}, error) {
 	cpulist := make([]int, 0)
-	switch in := args[0].(type) {
+	switch in := args.(type) {
 	case int:
 		for _, c := range topo.CpuData() {
 			if c.Core == in {
@@ -293,9 +298,9 @@ func getCpuListOfCoreFunc(args ...interface{}) (interface{}, error) {
 }
 
 // for a given socket id, it returns the list of cpuids
-func getCpuListOfSocketFunc(args ...interface{}) (interface{}, error) {
+func getCpuListOfSocketFunc(args interface{}) (interface{}, error) {
 	cpulist := make([]int, 0)
-	switch in := args[0].(type) {
+	switch in := args.(type) {
 	case int:
 		for _, c := range topo.CpuData() {
 			if c.Socket == in {
@@ -307,9 +312,9 @@ func getCpuListOfSocketFunc(args ...interface{}) (interface{}, error) {
 }
 
 // for a given id of a NUMA domain, it returns the list of cpuids
-func getCpuListOfNumaDomainFunc(args ...interface{}) (interface{}, error) {
+func getCpuListOfNumaDomainFunc(args interface{}) (interface{}, error) {
 	cpulist := make([]int, 0)
-	switch in := args[0].(type) {
+	switch in := args.(type) {
 	case int:
 		for _, c := range topo.CpuData() {
 			if c.Numadomain == in {
@@ -321,9 +326,9 @@ func getCpuListOfNumaDomainFunc(args ...interface{}) (interface{}, error) {
 }
 
 // for a given CPU die id, it returns the list of cpuids
-func getCpuListOfDieFunc(args ...interface{}) (interface{}, error) {
+func getCpuListOfDieFunc(args interface{}) (interface{}, error) {
 	cpulist := make([]int, 0)
-	switch in := args[0].(type) {
+	switch in := args.(type) {
 	case int:
 		for _, c := range topo.CpuData() {
 			if c.Die == in {
@@ -335,7 +340,7 @@ func getCpuListOfDieFunc(args ...interface{}) (interface{}, error) {
 }
 
 // wrapper function to get a list of all cpuids of the node
-func getCpuListOfNode(args ...interface{}) (interface{}, error) {
+func getCpuListOfNode() (interface{}, error) {
 	return topo.HwthreadList(), nil
 }
 

pkg/hostlist/hostlist.go

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

pkg/hostlist/hostlist_test.go

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

receivers.json

@@ -1,25 +1,44 @@
 {
-    "natsrecv" : {
+    "natsrecv": {
         "type": "nats",
         "address": "nats://my-url",
-        "port" : "4222",
+        "port": "4222",
         "database": "testcluster"
     },
     "redfish_recv": {
         "type": "redfish",
+        "endpoint": "https://%h-bmc",
         "client_config": [
             {
-                "hostname": "my-host-1",
+                "host_list": "my-host-1-[1-2]",
                 "username": "username-1",
-                "password": "password-1",
-                "endpoint": "https://my-endpoint-1"
+                "password": "password-1"
+            },
+            {
+                "host_list": "my-host-2-[1,2]",
+                "username": "username-2",
+                "password": "password-2"
+            }
+        ]
+    },
+    "ipmi_recv": {
+        "type": "ipmi",
+        "endpoint": "ipmi-sensors://%h-ipmi",
+        "exclude_metrics": [
+            "fan_speed",
+            "voltage"
+        ],
+        "client_config": [
+            {
+                "username": "username-1",
+                "password": "password-1",
+                "host_list": "my-host-1-[1-2]"
             },
             {
-                "hostname": "my-host-2",
                 "username": "username-2",
                 "password": "password-2",
-                "endpoint": "https://my-endpoint-2"
+                "host_list": "my-host-2-[1,2]"
             }
         ]
     }
-}
+}

receivers/ipmiReceiver.go

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

receivers/ipmiReceiver.md

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

receivers/receiveManager.go

@@ -2,6 +2,7 @@ package receivers
 
 import (
 	"encoding/json"
+	"fmt"
 	"os"
 	"sync"
 
@@ -10,6 +11,7 @@ import (
 )
 
 var AvailableReceivers = map[string]func(name string, config json.RawMessage) (Receiver, error){
+	"ipmi":    NewIPMIReceiver,
 	"nats":    NewNatsReceiver,
 	"redfish": NewRedfishReceiver,
 }
@@ -71,9 +73,13 @@ func (rm *receiveManager) AddInput(name string, rawConfig json.RawMessage) error
 		cclog.ComponentError("ReceiveManager", "SKIP", config.Type, "JSON config error:", err.Error())
 		return err
 	}
+	if config.Type == "" {
+		cclog.ComponentError("ReceiveManager", "SKIP", "JSON config for receiver", name, "does not contain a receiver type")
+		return fmt.Errorf("JSON config for receiver %s does not contain a receiver type", name)
+	}
 	if _, found := AvailableReceivers[config.Type]; !found {
-		cclog.ComponentError("ReceiveManager", "SKIP", config.Type, "unknown receiver:", err.Error())
-		return err
+		cclog.ComponentError("ReceiveManager", "SKIP", "unknown receiver type:", config.Type)
+		return fmt.Errorf("unknown receiver type: %s", config.Type)
 	}
 	r, err := AvailableReceivers[config.Type](name, rawConfig)
 	if err != nil {

receivers/redfishReceiver.go

@@ -1,9 +1,11 @@
 package receivers
 
 import (
+	"bytes"
 	"crypto/tls"
 	"encoding/json"
 	"fmt"
+	"io"
 	"net/http"
 	"strconv"
 	"strings"
@@ -12,6 +14,7 @@ import (
 
 	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
+	"github.com/ClusterCockpit/cc-metric-collector/pkg/hostlist"
 
 	// See: https://pkg.go.dev/github.com/stmcginnis/gofish
 	"github.com/stmcginnis/gofish"
@@ -346,9 +349,17 @@ func (r *RedfishReceiver) readProcessorMetrics(
 		// This property shall contain the temperature, in Celsius, of the processor.
 		TemperatureCelsius float32 `json:"TemperatureCelsius"`
 	}
-	err = json.NewDecoder(resp.Body).Decode(&processorMetrics)
+	body, err := io.ReadAll(resp.Body)
 	if err != nil {
-		return fmt.Errorf("unable to decode JSON for processor metrics: %+w", err)
+		return fmt.Errorf("unable to read JSON for processor metrics: %+w", err)
+	}
+	err = json.Unmarshal(body, &processorMetrics)
+	if err != nil {
+		return fmt.Errorf(
+			"unable to unmarshal JSON='%s' for processor metrics: %+w",
+			string(body),
+			err,
+		)
 	}
 	processorMetrics.SetClient(processor.Client)
 
@@ -380,7 +391,9 @@ func (r *RedfishReceiver) readProcessorMetrics(
 
 	namePower := "consumed_power"
 
-	if !clientConfig.isExcluded[namePower] {
+	if !clientConfig.isExcluded[namePower] &&
+		// Some servers return "ConsumedPowerWatt":65535 instead of "ConsumedPowerWatt":null
+		processorMetrics.ConsumedPowerWatt != 65535 {
 		y, err := lp.New(namePower, tags, metaPower,
 			map[string]interface{}{
 				"value": processorMetrics.ConsumedPowerWatt,
@@ -630,10 +643,10 @@ func NewRedfishReceiver(name string, config json.RawMessage) (Receiver, error) {
 		ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
 
 		ClientConfigs []struct {
-			HostList []string `json:"host_list"` // List of hosts with the same client configuration
-			Username *string  `json:"username"`  // User name to authenticate with
-			Password *string  `json:"password"`  // Password to use for authentication
-			Endpoint *string  `json:"endpoint"`  // URL of the redfish service
+			HostList string  `json:"host_list"` // List of hosts with the same client configuration
+			Username *string `json:"username"`  // User name to authenticate with
+			Password *string `json:"password"`  // Password to use for authentication
+			Endpoint *string `json:"endpoint"`  // URL of the redfish service
 
 			// Per client disable collection of power,processor or thermal metrics
 			DisablePowerMetrics     bool `json:"disable_power_metrics"`
@@ -660,8 +673,9 @@ func NewRedfishReceiver(name string, config json.RawMessage) (Receiver, error) {
 
 	// Read the redfish receiver specific JSON config
 	if len(config) > 0 {
-		err := json.Unmarshal(config, &configJSON)
-		if err != nil {
+		d := json.NewDecoder(bytes.NewReader(config))
+		d.DisallowUnknownFields()
+		if err := d.Decode(&configJSON); err != nil {
 			cclog.ComponentError(r.name, "Error reading config:", err.Error())
 			return nil, err
 		}
@@ -763,7 +777,14 @@ func NewRedfishReceiver(name string, config json.RawMessage) (Receiver, error) {
 			isExcluded[key] = true
 		}
 
-		for _, host := range clientConfigJSON.HostList {
+		hostList, err := hostlist.Expand(clientConfigJSON.HostList)
+		if err != nil {
+			err := fmt.Errorf("client config number %d failed to parse host list %s: %v",
+				i, clientConfigJSON.HostList, err)
+			cclog.ComponentError(r.name, err)
+			return nil, err
+		}
+		for _, host := range hostList {
 
 			// Endpoint of the redfish service
 			endpoint := strings.Replace(endpoint_pattern, "%h", host, -1)

receivers/redfishReceiver.md

@@ -8,22 +8,22 @@ The Redfish receiver uses the [Redfish (specification)](https://www.dmtf.org/sta
 {
     "<redfish receiver name>": {
         "type": "redfish",
-        "username": "<user A>",
-        "password": "<password A>",
+        "username": "<Username>",
+        "password": "<Password>",
         "endpoint": "https://%h-bmc",
         "exclude_metrics": [ "min_consumed_watts" ],
         "client_config": [
             {
-                "host_list": [ "<host 1>", "<host 2>" ]
+                "host_list": "n[1,2-4]"
             },
             {
-                "host_list": [ "<host 3>", "<host 4>" ]
+                "host_list": "n5"
                 "disable_power_metrics": true
             },
             {
-                "host_list": [ "<host 5>" ],
-                "username": "<user B>",
-                "password": "<password B>",
+                "host_list": "n6" ],
+                "username": "<Username 2>",
+                "password": "<Password 2>",
                 "endpoint": "https://%h-BMC",
                 "disable_thermal_metrics": true
             }

scripts/cc-metric-collector.service

@@ -3,7 +3,6 @@ Description=ClusterCockpit metric collector
 Documentation=https://github.com/ClusterCockpit/cc-metric-collector
 Wants=network-online.target
 After=network-online.target
-After=postgresql.service mariadb.service mysql.service
 
 [Service]
 EnvironmentFile=/etc/default/cc-metric-collector

scripts/cc-metric-collector.spec

@@ -10,6 +10,8 @@ BuildRequires:  go-toolset
 BuildRequires:  systemd-rpm-macros
 # for header downloads
 BuildRequires:  wget
+# Recommended when using the sysusers_create_package macro
+Requires(pre): /usr/bin/systemd-sysusers
 
 Provides:       %{name} = %{version}
 

scripts/likwid_perfgroup_to_cc_config.py

@@ -45,7 +45,7 @@ def group_to_json(groupfile):
             if "PWR" in calc:
                 scope = "socket"
 
-            m = {"name" : metric, "calc": calc, "scope" : scope, "publish" : True}
+            m = {"name" : metric, "calc": calc, "type" : scope, "publish" : True}
             metrics.append(m)
     return {"events" : events, "metrics" : metrics}
 

sinks/README.md

@@ -20,7 +20,9 @@ The configuration file for the sinks is a list of configurations. The `type` fie
 [
   "mystdout" : {
     "type" : "stdout",
-    "meta_as_tags" : false
+    "meta_as_tags" : [
+    	"unit"
+    ]
   },
   "metricstore" : {
     "type" : "http",
@@ -103,4 +105,4 @@ func NewSampleSink(name string, config json.RawMessage) (Sink, error) {
 	return s, err
 }
 
-```
+```

sinks/httpSink.go

@@ -11,12 +11,12 @@ import (
 
 	cclog "github.com/ClusterCockpit/cc-metric-collector/pkg/ccLogger"
 	lp "github.com/ClusterCockpit/cc-metric-collector/pkg/ccMetric"
-	influx "github.com/influxdata/line-protocol"
+	influx "github.com/influxdata/line-protocol/v2/lineprotocol"
 )
 
 type HttpSinkConfig struct {
 	defaultSinkConfig
-	URL             string `json:"url,omitempty"`
+	URL             string `json:"url"`
 	JWT             string `json:"jwt,omitempty"`
 	Timeout         string `json:"timeout,omitempty"`
 	IdleConnTimeout string `json:"idle_connection_timeout,omitempty"`
@@ -26,10 +26,10 @@ type HttpSinkConfig struct {
 
 type HttpSink struct {
 	sink
-	client          *http.Client
-	encoder         *influx.Encoder
-	lock            sync.Mutex // Flush() runs in another goroutine, so this lock has to protect the buffer
-	buffer          *bytes.Buffer
+	client  *http.Client
+	encoder influx.Encoder
+	lock    sync.Mutex // Flush() runs in another goroutine, so this lock has to protect the buffer
+	//buffer          *bytes.Buffer
 	flushTimer      *time.Timer
 	config          HttpSinkConfig
 	idleConnTimeout time.Duration
@@ -38,15 +38,29 @@ type HttpSink struct {
 }
 
 func (s *HttpSink) Write(m lp.CCMetric) error {
+	var err error = nil
+	var firstWriteOfBatch bool = false
 	p := m.ToPoint(s.meta_as_tags)
 	s.lock.Lock()
-	firstWriteOfBatch := s.buffer.Len() == 0
-	_, err := s.encoder.Encode(p)
-	s.lock.Unlock()
-	if err != nil {
-		cclog.ComponentError(s.name, "encoding failed:", err.Error())
-		return err
+	firstWriteOfBatch = len(s.encoder.Bytes()) == 0
+	v, ok := m.GetField("value")
+	if ok {
+
+		s.encoder.StartLine(p.Name())
+		for _, v := range p.TagList() {
+			s.encoder.AddTag(v.Key, v.Value)
+		}
+
+		s.encoder.AddField("value", influx.MustNewValue(v))
+		s.encoder.EndLine(p.Time())
+		err = s.encoder.Err()
+		if err != nil {
+			cclog.ComponentError(s.name, "encoding failed:", err.Error())
+			s.lock.Unlock()
+			return err
+		}
 	}
+	s.lock.Unlock()
 
 	if s.flushDelay == 0 {
 		return s.Flush()
@@ -70,9 +84,9 @@ func (s *HttpSink) Write(m lp.CCMetric) error {
 func (s *HttpSink) Flush() error {
 	// Own lock for as short as possible: the time it takes to copy the buffer.
 	s.lock.Lock()
-	buf := make([]byte, s.buffer.Len())
-	copy(buf, s.buffer.Bytes())
-	s.buffer.Reset()
+	buf := make([]byte, len(s.encoder.Bytes()))
+	copy(buf, s.encoder.Bytes())
+	s.encoder.Reset()
 	s.lock.Unlock()
 	if len(buf) == 0 {
 		return nil
@@ -134,6 +148,7 @@ func NewHttpSink(name string, config json.RawMessage) (Sink, error) {
 	s.config.Timeout = "5s"
 	s.config.FlushDelay = "5s"
 	s.config.MaxRetries = 3
+	cclog.ComponentDebug(s.name, "init")
 
 	// Read config
 	if len(config) > 0 {
@@ -148,6 +163,7 @@ func NewHttpSink(name string, config json.RawMessage) (Sink, error) {
 	if len(s.config.IdleConnTimeout) > 0 {
 		t, err := time.ParseDuration(s.config.IdleConnTimeout)
 		if err == nil {
+			cclog.ComponentDebug(s.name, "idleConnTimeout", t)
 			s.idleConnTimeout = t
 		}
 	}
@@ -155,12 +171,14 @@ func NewHttpSink(name string, config json.RawMessage) (Sink, error) {
 		t, err := time.ParseDuration(s.config.Timeout)
 		if err == nil {
 			s.timeout = t
+			cclog.ComponentDebug(s.name, "timeout", t)
 		}
 	}
 	if len(s.config.FlushDelay) > 0 {
 		t, err := time.ParseDuration(s.config.FlushDelay)
 		if err == nil {
 			s.flushDelay = t
+			cclog.ComponentDebug(s.name, "flushDelay", t)
 		}
 	}
 	// Create lookup map to use meta infos as tags in the output metric
@@ -173,8 +191,6 @@ func NewHttpSink(name string, config json.RawMessage) (Sink, error) {
 		IdleConnTimeout: s.idleConnTimeout,
 	}
 	s.client = &http.Client{Transport: tr, Timeout: s.timeout}
-	s.buffer = &bytes.Buffer{}
-	s.encoder = influx.NewEncoder(s.buffer)
-	s.encoder.SetPrecision(time.Second)
+	s.encoder.SetPrecision(influx.Second)
 	return s, nil
 }

sinks/httpSink.md

@@ -8,7 +8,9 @@ The `http` sink uses POST requests to a HTTP server to submit the metrics in the
 {
   "<name>": {
     "type": "http",
-    "meta_as_tags" : true,
+    "meta_as_tags" : [
+      "meta-key"
+    ],
     "url" : "https://my-monitoring.example.com:1234/api/write",
     "jwt" : "blabla.blabla.blabla",
     "timeout": "5s",
@@ -20,7 +22,7 @@ The `http` sink uses POST requests to a HTTP server to submit the metrics in the
 ```
 
 - `type`: makes the sink an `http` sink
-- `meta_as_tags`: print all meta information as tags in the output (optional)
+- `meta_as_tags`: Move specific meta information to the tags in the output (optional)
 - `url`: The full URL of the endpoint
 - `jwt`: JSON web tokens for authentification (Using the *Bearer* scheme)
 - `timeout`: General timeout for the HTTP client (default '5s')

sinks/influxAsyncSink.go

@@ -186,16 +186,16 @@ func NewInfluxAsyncSink(name string, config json.RawMessage) (Sink, error) {
 		}
 	}
 	if len(s.config.Port) == 0 {
-		return nil, errors.New("Missing port configuration required by InfluxSink")
+		return nil, errors.New("missing port configuration required by InfluxSink")
 	}
 	if len(s.config.Database) == 0 {
-		return nil, errors.New("Missing database configuration required by InfluxSink")
+		return nil, errors.New("missing database configuration required by InfluxSink")
 	}
 	if len(s.config.Organization) == 0 {
-		return nil, errors.New("Missing organization configuration required by InfluxSink")
+		return nil, errors.New("missing organization configuration required by InfluxSink")
 	}
 	if len(s.config.Password) == 0 {
-		return nil, errors.New("Missing password configuration required by InfluxSink")
+		return nil, errors.New("missing password configuration required by InfluxSink")
 	}
 	// Create lookup map to use meta infos as tags in the output metric
 	s.meta_as_tags = make(map[string]bool)

sinks/influxSink.go

@@ -213,19 +213,19 @@ func NewInfluxSink(name string, config json.RawMessage) (Sink, error) {
 	}
 
 	if len(s.config.Host) == 0 {
-		return s, errors.New("Missing host configuration required by InfluxSink")
+		return s, errors.New("missing host configuration required by InfluxSink")
 	}
 	if len(s.config.Port) == 0 {
-		return s, errors.New("Missing port configuration required by InfluxSink")
+		return s, errors.New("missing port configuration required by InfluxSink")
 	}
 	if len(s.config.Database) == 0 {
-		return s, errors.New("Missing database configuration required by InfluxSink")
+		return s, errors.New("missing database configuration required by InfluxSink")
 	}
 	if len(s.config.Organization) == 0 {
-		return s, errors.New("Missing organization configuration required by InfluxSink")
+		return s, errors.New("missing organization configuration required by InfluxSink")
 	}
 	if len(s.config.Password) == 0 {
-		return s, errors.New("Missing password configuration required by InfluxSink")
+		return s, errors.New("missing password configuration required by InfluxSink")
 	}
 
 	// Create lookup map to use meta infos as tags in the output metric

sinks/sinkManager.go

@@ -84,7 +84,7 @@ func (sm *sinkManager) Init(wg *sync.WaitGroup, sinkConfigFile string) error {
 	// Check that at least one sink is running
 	if !(len(sm.sinks) > 0) {
 		cclog.ComponentError("SinkManager", "Found no usable sinks")
-		return fmt.Errorf("Found no usable sinks")
+		return fmt.Errorf("found no usable sinks")
 	}
 
 	return nil