Goroutine creation can be simplified using WaitGroup.Go (modernize)

Replace depreceated functions

.github/workflows/runonce.yml

@@ -35,11 +35,6 @@ jobs:
       run: |
         go install github.com/reviewdog/reviewdog/cmd/reviewdog@latest
 
-    # See: https://staticcheck.io
-    - name: Install staticcheck
-      run: |
-        go install honnef.co/go/tools/cmd/staticcheck@latest
-
     # See: https://golangci-lint.run
     - name: Install GolangCI-Lint
       run: |
@@ -54,21 +49,7 @@ jobs:
     # Running the linter requires likwid.h, which gets downloaded in the build step
     - name: Static Analysis with GolangCI-Lint and Upload Report with reviewdog
       run: |
-        golangci-lint run | reviewdog -f=golangci-lint -name "Check golangci-lint on build-latest" -reporter=github-check -filter-mode=nofilter -fail-level none
+        golangci-lint run --enable errorlint,govet,misspell,modernize,prealloc,staticcheck,unconvert,wastedassign | reviewdog -f=golangci-lint -name "Check golangci-lint on build-latest" -reporter=github-check -filter-mode=nofilter -fail-level none
-      env:
-        REVIEWDOG_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-    # Running the linter requires likwid.h, which gets downloaded in the build step
-    - name: Run Static Analysis with go vet and Upload Report with reviewdog
-      run: |
-        go vet ./... | reviewdog -f=govet -name "Check govet on build-latest" -reporter=github-check -filter-mode=nofilter -fail-level none
-      env:
-        REVIEWDOG_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-    # Running the linter requires likwid.h, which gets downloaded in the build step
-    - name: Run Static Analysis with staticcheck and Upload Report with reviewdog
-      run: |
-        staticcheck ./... | reviewdog -f=staticcheck -name "Check staticcheck on build-latest" -reporter=github-check -filter-mode=nofilter -fail-level none
       env:
         REVIEWDOG_GITHUB_API_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 

cc-metric-collector.go

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

collectors/beegfsmetaMetric.go

@@ -78,7 +78,7 @@ func (m *BeegfsMetaCollector) Init(config json.RawMessage) error {
 		}
 	}
 
-	//create map with possible variables
+	// Create map with possible variables
 	m.matches = make(map[string]string)
 	for _, value := range nodeMdstat_array {
 		if slices.Contains(m.config.ExcludeMetrics, value) {
@@ -104,7 +104,7 @@ func (m *BeegfsMetaCollector) Init(config json.RawMessage) error {
 	// Beegfs file system statistics can only be queried by user root
 	user, err := user.Current()
 	if err != nil {
-		return fmt.Errorf("BeegfsMetaCollector.Init(): Failed to get current user: %v", err)
+		return fmt.Errorf("BeegfsMetaCollector.Init(): Failed to get current user: %w", err)
 	}
 	if user.Uid != "0" {
 		return fmt.Errorf("BeegfsMetaCollector.Init(): BeeGFS file system statistics can only be queried by user root")
@@ -113,7 +113,7 @@ func (m *BeegfsMetaCollector) Init(config json.RawMessage) error {
 	// Check if beegfs-ctl is in executable search path
 	_, err = exec.LookPath(m.config.Beegfs)
 	if err != nil {
-		return fmt.Errorf("BeegfsMetaCollector.Init(): Failed to find beegfs-ctl binary '%s': %v", m.config.Beegfs, err)
+		return fmt.Errorf("BeegfsMetaCollector.Init(): Failed to find beegfs-ctl binary '%s': %w", m.config.Beegfs, err)
 	}
 	m.init = true
 	return nil
@@ -123,7 +123,7 @@ func (m *BeegfsMetaCollector) Read(interval time.Duration, output chan lp.CCMess
 	if !m.init {
 		return
 	}
-	//get mounpoint
+	// Get mounpoint
 	buffer, _ := os.ReadFile(string("/proc/mounts"))
 	mounts := strings.Split(string(buffer), "\n")
 	var mountpoints []string
@@ -164,12 +164,15 @@ func (m *BeegfsMetaCollector) Read(interval time.Duration, output chan lp.CCMess
 		cmd.Stderr = cmdStderr
 		err := cmd.Run()
 		if err != nil {
-			fmt.Fprintf(os.Stderr, "BeegfsMetaCollector.Read(): Failed to execute command \"%s\": %s\n", cmd.String(), err.Error())
+			dataStdErr, _ := io.ReadAll(cmdStderr)
-			fmt.Fprintf(os.Stderr, "BeegfsMetaCollector.Read(): command exit code: \"%d\"\n", cmd.ProcessState.ExitCode())
+			dataStdOut, _ := io.ReadAll(cmdStdout)
-			data, _ := io.ReadAll(cmdStderr)
+			cclog.ComponentError(
-			fmt.Fprintf(os.Stderr, "BeegfsMetaCollector.Read(): command stderr: \"%s\"\n", string(data))
+				m.name,
-			data, _ = io.ReadAll(cmdStdout)
+				fmt.Sprintf("Read(): Failed to execute command \"%s\": %v\n", cmd.String(), err),
-			fmt.Fprintf(os.Stderr, "BeegfsMetaCollector.Read(): command stdout: \"%s\"\n", string(data))
+				fmt.Sprintf("Read(): command exit code: \"%d\"\n", cmd.ProcessState.ExitCode()),
+				fmt.Sprintf("Read(): command stderr: \"%s\"\n", string(dataStdErr)),
+				fmt.Sprintf("Read(): command stdout: \"%s\"\n", string(dataStdOut)),
+			)
 			return
 		}
 		// Read I/O statistics
@@ -225,7 +228,7 @@ func (m *BeegfsMetaCollector) Read(interval time.Duration, output chan lp.CCMess
 
 			for key, data := range m.matches {
 				value, _ := strconv.ParseFloat(data, 32)
-				y, err := lp.NewMessage(key, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
+				y, err := lp.NewMessage(key, m.tags, m.meta, map[string]any{"value": value}, time.Now())
 				if err == nil {
 					output <- y
 				}

collectors/beegfsstorageMetric.go

@@ -97,7 +97,7 @@ func (m *BeegfsStorageCollector) Init(config json.RawMessage) error {
 	// Beegfs file system statistics can only be queried by user root
 	user, err := user.Current()
 	if err != nil {
-		return fmt.Errorf("BeegfsStorageCollector.Init(): Failed to get current user: %v", err)
+		return fmt.Errorf("BeegfsStorageCollector.Init(): Failed to get current user: %w", err)
 	}
 	if user.Uid != "0" {
 		return fmt.Errorf("BeegfsStorageCollector.Init(): BeeGFS file system statistics can only be queried by user root")
@@ -106,7 +106,7 @@ func (m *BeegfsStorageCollector) Init(config json.RawMessage) error {
 	// Check if beegfs-ctl is in executable search path
 	_, err = exec.LookPath(m.config.Beegfs)
 	if err != nil {
-		return fmt.Errorf("BeegfsStorageCollector.Init(): Failed to find beegfs-ctl binary '%s': %v", m.config.Beegfs, err)
+		return fmt.Errorf("BeegfsStorageCollector.Init(): Failed to find beegfs-ctl binary '%s': %w", m.config.Beegfs, err)
 	}
 	m.init = true
 	return nil
@@ -156,12 +156,15 @@ func (m *BeegfsStorageCollector) Read(interval time.Duration, output chan lp.CCM
 		cmd.Stderr = cmdStderr
 		err := cmd.Run()
 		if err != nil {
-			fmt.Fprintf(os.Stderr, "BeegfsStorageCollector.Read(): Failed to execute command \"%s\": %s\n", cmd.String(), err.Error())
+			dataStdErr, _ := io.ReadAll(cmdStderr)
-			fmt.Fprintf(os.Stderr, "BeegfsStorageCollector.Read(): command exit code: \"%d\"\n", cmd.ProcessState.ExitCode())
+			dataStdOut, _ := io.ReadAll(cmdStdout)
-			data, _ := io.ReadAll(cmdStderr)
+			cclog.ComponentError(
-			fmt.Fprintf(os.Stderr, "BeegfsStorageCollector.Read(): command stderr: \"%s\"\n", string(data))
+				m.name,
-			data, _ = io.ReadAll(cmdStdout)
+				fmt.Sprintf("Read(): Failed to execute command \"%s\": %v\n", cmd.String(), err),
-			fmt.Fprintf(os.Stderr, "BeegfsStorageCollector.Read(): command stdout: \"%s\"\n", string(data))
+				fmt.Sprintf("Read(): command exit code: \"%d\"\n", cmd.ProcessState.ExitCode()),
+				fmt.Sprintf("Read(): command stderr: \"%s\"\n", string(dataStdErr)),
+				fmt.Sprintf("Read(): command stdout: \"%s\"\n", string(dataStdOut)),
+			)
 			return
 		}
 		// Read I/O statistics
@@ -217,7 +220,7 @@ func (m *BeegfsStorageCollector) Read(interval time.Duration, output chan lp.CCM
 
 			for key, data := range m.matches {
 				value, _ := strconv.ParseFloat(data, 32)
-				y, err := lp.NewMessage(key, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
+				y, err := lp.NewMessage(key, m.tags, m.meta, map[string]any{"value": value}, time.Now())
 				if err == nil {
 					output <- y
 				}

collectors/collectorManager.go

@@ -123,9 +123,7 @@ func (cm *collectorManager) Start() {
 	tick := make(chan time.Time)
 	cm.ticker.AddChannel(tick)
 
-	cm.wg.Add(1)
+	cm.wg.Go(func() {
-	go func() {
-		defer cm.wg.Done()
 		// Collector manager is done
 		done := func() {
 			// close all metric collectors
@@ -180,7 +178,7 @@ func (cm *collectorManager) Start() {
 				}
 			}
 		}
-	}()
+	})
 
 	// Collector manager is started
 	cclog.ComponentDebug("CollectorManager", "STARTED")

collectors/cpufreqCpuinfoMetric.go

@@ -35,7 +35,7 @@ type CPUFreqCpuInfoCollector struct {
 	topology []CPUFreqCpuInfoCollectorTopology
 }
 
-func (m *CPUFreqCpuInfoCollector) Init(config json.RawMessage) error {
+func (m *CPUFreqCpuInfoCollector) Init(_ json.RawMessage) error {
 	// Check if already initialized
 	if m.init {
 		return nil
@@ -55,7 +55,7 @@ func (m *CPUFreqCpuInfoCollector) Init(config json.RawMessage) error {
 	const cpuInfoFile = "/proc/cpuinfo"
 	file, err := os.Open(cpuInfoFile)
 	if err != nil {
-		return fmt.Errorf("failed to open file '%s': %v", cpuInfoFile, err)
+		return fmt.Errorf("%s Init(): failed to open file '%s': %w", m.name, cpuInfoFile, err)
 	}
 
 	// Collect topology information from file cpuinfo
@@ -123,7 +123,7 @@ func (m *CPUFreqCpuInfoCollector) Init(config json.RawMessage) error {
 
 	// Check if at least one CPU with frequency information was detected
 	if len(m.topology) == 0 {
-		return fmt.Errorf("no CPU frequency info found in %s", cpuInfoFile)
+		return fmt.Errorf("%s Init(): no CPU frequency info found in %s", m.name, cpuInfoFile)
 	}
 
 	m.init = true
@@ -171,7 +171,7 @@ func (m *CPUFreqCpuInfoCollector) Read(interval time.Duration, output chan lp.CC
 							fmt.Sprintf("Read(): Failed to convert cpu MHz '%s' to float64: %v", lineSplit[1], err))
 						return
 					}
-					if y, err := lp.NewMessage("cpufreq", t.tagSet, m.meta, map[string]interface{}{"value": value}, now); err == nil {
+					if y, err := lp.NewMessage("cpufreq", t.tagSet, m.meta, map[string]any{"value": value}, now); err == nil {
 						output <- y
 					}
 				}

collectors/cpufreqMetric.go

@@ -76,15 +76,15 @@ func (m *CPUFreqCollector) Init(config json.RawMessage) error {
 		scalingCurFreqFile := filepath.Join("/sys/devices/system/cpu", fmt.Sprintf("cpu%d", c.CpuID), "cpufreq/scaling_cur_freq")
 		err := unix.Access(scalingCurFreqFile, unix.R_OK)
 		if err != nil {
-			return fmt.Errorf("unable to access file '%s': %v", scalingCurFreqFile, err)
+			return fmt.Errorf("unable to access file '%s': %w", scalingCurFreqFile, err)
 		}
 
 		m.topology = append(m.topology,
 			CPUFreqCollectorTopology{
 				tagSet: map[string]string{
 					"type":       "hwthread",
-					"type-id":    fmt.Sprint(c.CpuID),
+					"type-id":    strconv.Itoa(c.CpuID),
-					"package_id": fmt.Sprint(c.Socket),
+					"package_id": strconv.Itoa(c.Socket),
 				},
 				scalingCurFreqFile: scalingCurFreqFile,
 			},
@@ -126,7 +126,7 @@ func (m *CPUFreqCollector) Read(interval time.Duration, output chan lp.CCMessage
 			continue
 		}
 
-		if y, err := lp.NewMessage("cpufreq", t.tagSet, m.meta, map[string]interface{}{"value": cpuFreq}, now); err == nil {
+		if y, err := lp.NewMessage("cpufreq", t.tagSet, m.meta, map[string]any{"value": cpuFreq}, now); err == nil {
 			output <- y
 		}
 	}

collectors/cpustatMetric.go

@@ -108,7 +108,9 @@ func (m *CpustatCollector) Init(config json.RawMessage) error {
 		} else if strings.HasPrefix(linefields[0], "cpu") && strings.Compare(linefields[0], "cpu") != 0 {
 			cpustr := strings.TrimLeft(linefields[0], "cpu")
 			cpu, _ := strconv.Atoi(cpustr)
-			m.cputags[linefields[0]] = map[string]string{"type": "hwthread", "type-id": fmt.Sprintf("%d", cpu)}
+			m.cputags[linefields[0]] = map[string]string{
+				"type":    "hwthread",
+				"type-id": strconv.Itoa(cpu)}
 			m.olddata[linefields[0]] = make(map[string]int64)
 			for k, v := range m.matches {
 				m.olddata[linefields[0]][k], _ = strconv.ParseInt(linefields[v], 0, 64)
@@ -138,7 +140,7 @@ func (m *CpustatCollector) parseStatLine(linefields []string, tags map[string]st
 	sum := float64(0)
 	for name, value := range values {
 		sum += value
-		y, err := lp.NewMessage(name, tags, m.meta, map[string]interface{}{"value": value * 100}, now)
+		y, err := lp.NewMessage(name, tags, m.meta, map[string]any{"value": value * 100}, now)
 		if err == nil {
 			y.AddTag("unit", "Percent")
 			output <- y
@@ -146,7 +148,7 @@ func (m *CpustatCollector) parseStatLine(linefields []string, tags map[string]st
 	}
 	if v, ok := values["cpu_idle"]; ok {
 		sum -= v
-		y, err := lp.NewMessage("cpu_used", tags, m.meta, map[string]interface{}{"value": sum * 100}, now)
+		y, err := lp.NewMessage("cpu_used", tags, m.meta, map[string]any{"value": sum * 100}, now)
 		if err == nil {
 			y.AddTag("unit", "Percent")
 			output <- y
@@ -191,7 +193,7 @@ func (m *CpustatCollector) Read(interval time.Duration, output chan lp.CCMessage
 	num_cpus_metric, err := lp.NewMessage("num_cpus",
 		m.nodetags,
 		m.meta,
-		map[string]interface{}{"value": int(num_cpus)},
+		map[string]any{"value": num_cpus},
 		now,
 	)
 	if err == nil {

collectors/customCmdMetric.go

@@ -8,18 +8,22 @@
 package collectors
 
 import (
+	"bytes"
 	"encoding/json"
 	"errors"
 	"fmt"
-	"log"
+	"io"
 	"os"
 	"os/exec"
 	"slices"
 	"strings"
 	"time"
 
+	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
 	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
-	influx "github.com/influxdata/line-protocol"
+
+	receivers "github.com/ClusterCockpit/cc-lib/v2/receivers"
+	lp2 "github.com/influxdata/line-protocol/v2/lineprotocol"
 )
 
 const CUSTOMCMDPATH = `/home/unrz139/Work/cc-metric-collector/collectors/custom`
@@ -32,108 +36,155 @@ type CustomCmdCollectorConfig struct {
 
 type CustomCmdCollector struct {
 	metricCollector
-	handler  *influx.MetricHandler
-	parser   *influx.Parser
 	config         CustomCmdCollectorConfig
-	commands []string
+	cmdFieldsSlice [][]string
 	files          []string
 }
 
 func (m *CustomCmdCollector) Init(config json.RawMessage) error {
-	var err error
 	m.name = "CustomCmdCollector"
 	m.parallel = true
-	m.meta = map[string]string{"source": m.name, "group": "Custom"}
+	m.meta = map[string]string{
+		"source": m.name,
+		"group":  "Custom",
+	}
+
+	// Read configuration
 	if len(config) > 0 {
-		err = json.Unmarshal(config, &m.config)
+		if err := json.Unmarshal(config, &m.config); err != nil {
-		if err != nil {
+			return fmt.Errorf("%s Init(): json.Unmarshal() call failed: %w", m.name, err)
-			log.Print(err.Error())
-			return err
 		}
 	}
+
+	// Setup
 	if err := m.setup(); err != nil {
 		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
 	}
+
+	// Check if command can be executed
 	for _, c := range m.config.Commands {
-		cmdfields := strings.Fields(c)
+		cmdFields := strings.Fields(c)
-		command := exec.Command(cmdfields[0], cmdfields[1:]...)
+		command := exec.Command(cmdFields[0], cmdFields[1:]...)
-		if err := command.Wait(); err != nil {
+		if _, err := command.Output(); err != nil {
-			log.Print(err)
+			cclog.ComponentWarn(
+				m.name,
+				fmt.Sprintf("%s Init(): Execution of command \"%s\" failed: %v", m.name, command.String(), err))
 			continue
 		}
-		_, err = command.Output()
+		m.cmdFieldsSlice = append(m.cmdFieldsSlice, cmdFields)
-		if err == nil {
-			m.commands = append(m.commands, c)
 	}
-	}
+
-	for _, f := range m.config.Files {
+	// Check if file can be read
-		_, err = os.ReadFile(f)
+	for _, fileName := range m.config.Files {
-		if err == nil {
+		if _, err := os.ReadFile(fileName); err != nil {
-			m.files = append(m.files, f)
+			cclog.ComponentWarn(
-		} else {
+				m.name,
-			log.Print(err.Error())
+				fmt.Sprintf("%s Init(): Reading of file \"%s\" failed: %v", m.name, fileName, err))
 			continue
 		}
+		m.files = append(m.files, fileName)
 	}
-	if len(m.files) == 0 && len(m.commands) == 0 {
+
+	if len(m.files) == 0 && len(m.cmdFieldsSlice) == 0 {
 		return errors.New("no metrics to collect")
 	}
-	m.handler = influx.NewMetricHandler()
-	m.parser = influx.NewParser(m.handler)
-	m.parser.SetTimeFunc(DefaultTime)
 	m.init = true
 	return nil
 }
 
-var DefaultTime = func() time.Time {
-	return time.Unix(42, 0)
-}
-
 func (m *CustomCmdCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 	if !m.init {
 		return
 	}
-	for _, cmd := range m.commands {
+
-		cmdfields := strings.Fields(cmd)
+	// Execute configured commands
-		command := exec.Command(cmdfields[0], cmdfields[1:]...)
+	for _, cmdFields := range m.cmdFieldsSlice {
-		if err := command.Wait(); err != nil {
+		command := exec.Command(cmdFields[0], cmdFields[1:]...)
-			log.Print(err)
+		stdout, err := command.StdoutPipe()
-			continue
-		}
-		stdout, err := command.Output()
 		if err != nil {
-			log.Print(err)
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to create stdout pipe for command \"%s\": %v", command.String(), err),
+			)
 			continue
 		}
-		cmdmetrics, err := m.parser.Parse(stdout)
+		errBuf := new(bytes.Buffer)
-		if err != nil {
+		command.Stderr = errBuf
-			log.Print(err)
+
-			continue
+		// Start command
-		}
+		if err := command.Start(); err != nil {
-		for _, c := range cmdmetrics {
+			cclog.ComponentError(
-			if slices.Contains(m.config.ExcludeMetrics, c.Name()) {
+				m.name,
+				fmt.Sprintf("Read(): Failed to start command \"%s\": %v", command.String(), err),
+			)
 			continue
 		}
 
-			output <- lp.FromInfluxMetric(c)
+		// Read and decode influxDB line-protocol from command output
-		}
+		d := lp2.NewDecoder(stdout)
-	}
+		for d.Next() {
-	for _, file := range m.files {
+			metric, err := receivers.DecodeInfluxMessage(d)
-		buffer, err := os.ReadFile(file)
 			if err != nil {
-			log.Print(err)
+				cclog.ComponentError(
-			return
+					m.name,
-		}
+					fmt.Sprintf("Read(): Failed to decode influx Message: %v", err),
-		fmetrics, err := m.parser.Parse(buffer)
+				)
-		if err != nil {
-			log.Print(err)
 				continue
 			}
-		for _, f := range fmetrics {
+			if slices.Contains(m.config.ExcludeMetrics, metric.Name()) {
-			if slices.Contains(m.config.ExcludeMetrics, f.Name()) {
 				continue
 			}
-			output <- lp.FromInfluxMetric(f)
+			output <- metric
+		}
+
+		// Wait for command end
+		if err := command.Wait(); err != nil {
+			errMsg, _ := io.ReadAll(errBuf)
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to wait for the end of command \"%s\": %v\n", command.String(), err),
+			)
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): command stderr: \"%s\"\n", strings.TrimSpace(string(errMsg))))
+			continue
+		}
+	}
+
+	// Read configured files
+	for _, filename := range m.files {
+		file, err := os.Open(filename)
+		if err != nil {
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to open file \"%s\": %v\n", filename, err),
+			)
+			continue
+		}
+
+		// Read and decode influxDB line-protocol from file
+		d := lp2.NewDecoder(file)
+		for d.Next() {
+			metric, err := receivers.DecodeInfluxMessage(d)
+			if err != nil {
+				cclog.ComponentError(
+					m.name,
+					fmt.Sprintf("Read(): Failed to decode influx Message: %v", err),
+				)
+				continue
+			}
+			if slices.Contains(m.config.ExcludeMetrics, metric.Name()) {
+				continue
+			}
+			output <- metric
+		}
+
+		if err := file.Close(); err != nil {
+			cclog.ComponentError(
+				m.name,
+				fmt.Sprintf("Read(): Failed to close file \"%s\": %v\n", filename, err),
+			)
+			continue
 		}
 	}
 }

collectors/diskstatMetric.go

@@ -124,7 +124,13 @@ mountLoop:
 		tags := map[string]string{"type": "node", "device": linefields[0]}
 		total := (stat.Blocks * uint64(stat.Bsize)) / uint64(1000000000)
 		if m.allowedMetrics["disk_total"] {
-			y, err := lp.NewMessage("disk_total", tags, m.meta, map[string]interface{}{"value": total}, time.Now())
+			y, err := lp.NewMessage(
+				"disk_total",
+				tags,
+				m.meta,
+				map[string]any{
+					"value": total},
+				time.Now())
 			if err == nil {
 				y.AddMeta("unit", "GBytes")
 				output <- y
@@ -132,7 +138,13 @@ mountLoop:
 		}
 		free := (stat.Bfree * uint64(stat.Bsize)) / uint64(1000000000)
 		if m.allowedMetrics["disk_free"] {
-			y, err := lp.NewMessage("disk_free", tags, m.meta, map[string]interface{}{"value": free}, time.Now())
+			y, err := lp.NewMessage(
+				"disk_free",
+				tags,
+				m.meta,
+				map[string]any{
+					"value": free},
+				time.Now())
 			if err == nil {
 				y.AddMeta("unit", "GBytes")
 				output <- y
@@ -146,7 +158,14 @@ mountLoop:
 		}
 	}
 	if m.allowedMetrics["part_max_used"] {
-		y, err := lp.NewMessage("part_max_used", map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": int(part_max_used)}, time.Now())
+		y, err := lp.NewMessage(
+			"part_max_used",
+			map[string]string{
+				"type": "node"},
+			m.meta,
+			map[string]any{
+				"value": int(part_max_used)},
+			time.Now())
 		if err == nil {
 			y.AddMeta("unit", "percent")
 			output <- y

collectors/gpfsMetric.go

@@ -14,7 +14,6 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"log"
 	"os/exec"
 	"os/user"
 	"slices"
@@ -324,8 +323,7 @@ func (m *GpfsCollector) Init(config json.RawMessage) error {
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
-			log.Print(err.Error())
+			return fmt.Errorf("%s Init(): failed to unmarshal JSON config: %w", m.name, err)
-			return err
 		}
 	}
 	m.meta = map[string]string{
@@ -366,7 +364,7 @@ func (m *GpfsCollector) Init(config json.RawMessage) error {
 	// when using sudo, the full path of mmpmon must be specified because
 	// exec.LookPath will not work as mmpmon is not executable as user
 	if m.config.Sudo && !strings.HasPrefix(m.config.Mmpmon, "/") {
-		return fmt.Errorf("when using sudo, mmpmon_path must be provided and an absolute path: %s", m.config.Mmpmon)
+		return fmt.Errorf("%s Init(): when using sudo, mmpmon_path must be provided and an absolute path: %s", m.name, m.config.Mmpmon)
 	}
 
 	// Check if mmpmon is in executable search path
@@ -379,7 +377,7 @@ func (m *GpfsCollector) Init(config json.RawMessage) error {
 			p = m.config.Mmpmon
 		} else {
 			cclog.ComponentError(m.name, fmt.Sprintf("failed to find mmpmon binary '%s': %v", m.config.Mmpmon, err))
-			return fmt.Errorf("failed to find mmpmon binary '%s': %v", m.config.Mmpmon, err)
+			return fmt.Errorf("%s Init(): failed to find mmpmon binary '%s': %w", m.name, m.config.Mmpmon, err)
 		}
 	}
 	m.config.Mmpmon = p
@@ -564,36 +562,36 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 		// compute total metrics (map[...] will return 0 if key not found)
 		// bytes read and written
 		if br, br_ok := newstate["_br_"]; br_ok {
-			newstate["bytesTotal"] = newstate["bytesTotal"] + br
+			newstate["bytesTotal"] += br
 		}
 		if bw, bw_ok := newstate["_bw_"]; bw_ok {
-			newstate["bytesTotal"] = newstate["bytesTotal"] + bw
+			newstate["bytesTotal"] += bw
 		}
 		// read and write count
 		if rdc, rdc_ok := newstate["_rdc_"]; rdc_ok {
-			newstate["iops"] = newstate["iops"] + rdc
+			newstate["iops"] += rdc
 		}
 		if wc, wc_ok := newstate["_wc_"]; wc_ok {
-			newstate["iops"] = newstate["iops"] + wc
+			newstate["iops"] += wc
 		}
 		// meta operations
 		if oc, oc_ok := newstate["_oc_"]; oc_ok {
-			newstate["metaops"] = newstate["metaops"] + oc
+			newstate["metaops"] += oc
 		}
 		if cc, cc_ok := newstate["_cc_"]; cc_ok {
-			newstate["metaops"] = newstate["metaops"] + cc
+			newstate["metaops"] += cc
 		}
 		if dir, dir_ok := newstate["_dir_"]; dir_ok {
-			newstate["metaops"] = newstate["metaops"] + dir
+			newstate["metaops"] += dir
 		}
 		if iu, iu_ok := newstate["_iu_"]; iu_ok {
-			newstate["metaops"] = newstate["metaops"] + iu
+			newstate["metaops"] += iu
 		}
 		// send desired metrics for this filesystem
 		for _, metric := range m.definitions {
 			vold, vold_ok := m.lastState[filesystem][metric.prefix]
 			vnew, vnew_ok := newstate[metric.prefix]
-			var value interface{}
+			var value any
 			value_ok := false
 			switch metric.calc {
 			case "none":
@@ -620,13 +618,13 @@ func (m *GpfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 			case "derivative":
 				if vnew_ok && vold_ok && timeDiff > 0 {
 					value = float64(vnew-vold) / timeDiff
-					if value.(float64) < 0 {
+					if value.(float64) < 0.0 {
-						value = 0
+						value = 0.0
 					}
 					value_ok = true
 				} else if vold_ok {
 					// if the difference is not computable, return 0
-					value = 0
+					value = 0.0
 					value_ok = true
 				}
 			}

collectors/infinibandMetric.go

@@ -10,6 +10,7 @@ package collectors
 import (
 	"fmt"
 	"os"
+	"slices"
 
 	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
 	lp "github.com/ClusterCockpit/cc-lib/v2/ccMessage"
@@ -89,10 +90,10 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 	globPattern := filepath.Join(IB_BASEPATH, "*", "ports", "*")
 	ibDirs, err := filepath.Glob(globPattern)
 	if err != nil {
-		return fmt.Errorf("unable to glob files with pattern %s: %v", globPattern, err)
+		return fmt.Errorf("%s Init(): unable to glob files with pattern %s: %w", m.name, globPattern, err)
 	}
 	if ibDirs == nil {
-		return fmt.Errorf("unable to find any directories with pattern %s", globPattern)
+		return fmt.Errorf("%s Init(): unable to find any directories with pattern %s", m.name, globPattern)
 	}
 
 	for _, path := range ibDirs {
@@ -113,14 +114,7 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 		port := pathSplit[6]
 
 		// Skip excluded devices
-		skip := false
+		if slices.Contains(m.config.ExcludeDevices, device) {
-		for _, excludedDevice := range m.config.ExcludeDevices {
-			if excludedDevice == device {
-				skip = true
-				break
-			}
-		}
-		if skip {
 			continue
 		}
 
@@ -163,7 +157,7 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 		for _, counter := range portCounterFiles {
 			err := unix.Access(counter.path, unix.R_OK)
 			if err != nil {
-				return fmt.Errorf("unable to access %s: %v", counter.path, err)
+				return fmt.Errorf("%s Init(): unable to access %s: %w", m.name, counter.path, err)
 			}
 		}
 
@@ -183,7 +177,7 @@ func (m *InfinibandCollector) Init(config json.RawMessage) error {
 	}
 
 	if len(m.info) == 0 {
-		return fmt.Errorf("found no IB devices")
+		return fmt.Errorf("%s Init(): found no IB devices", m.name)
 	}
 
 	m.init = true
@@ -243,7 +237,7 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMess
 						counterDef.name,
 						info.tagSet,
 						m.meta,
-						map[string]interface{}{
+						map[string]any{
 							"value": counterDef.currentState,
 						},
 						now); err == nil {
@@ -261,7 +255,7 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMess
 							counterDef.name+"_bw",
 							info.tagSet,
 							m.meta,
-							map[string]interface{}{
+							map[string]any{
 								"value": rate,
 							},
 							now); err == nil {
@@ -291,7 +285,7 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMess
 					"ib_total",
 					info.tagSet,
 					m.meta,
-					map[string]interface{}{
+					map[string]any{
 						"value": ib_total,
 					},
 					now); err == nil {
@@ -304,7 +298,7 @@ func (m *InfinibandCollector) Read(interval time.Duration, output chan lp.CCMess
 					"ib_total_pkts",
 					info.tagSet,
 					m.meta,
-					map[string]interface{}{
+					map[string]any{
 						"value": ib_total_pkts,
 					},
 					now); err == nil {

collectors/ipmiMetric.go

@@ -130,7 +130,7 @@ func (m *IpmiCollector) readIpmiTool(cmd string, output chan lp.CCMessage) {
 				unit = "Watts"
 			}
 
-			y, err := lp.NewMessage(name, map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": v}, time.Now())
+			y, err := lp.NewMessage(name, map[string]string{"type": "node"}, m.meta, map[string]any{"value": v}, time.Now())
 			if err == nil {
 				y.AddMeta("unit", unit)
 				output <- y
@@ -175,7 +175,7 @@ func (m *IpmiCollector) readIpmiSensors(cmd string, output chan lp.CCMessage) {
 			v, err := strconv.ParseFloat(lv[3], 64)
 			if err == nil {
 				name := strings.ToLower(strings.ReplaceAll(lv[1], " ", "_"))
-				y, err := lp.NewMessage(name, map[string]string{"type": "node"}, m.meta, map[string]interface{}{"value": v}, time.Now())
+				y, err := lp.NewMessage(name, map[string]string{"type": "node"}, m.meta, map[string]any{"value": v}, time.Now())
 				if err == nil {
 					if len(lv) > 4 {
 						y.AddMeta("unit", lv[4])

collectors/likwidMetric.go

@@ -24,7 +24,7 @@ import (
 	"os"
 	"os/signal"
 	"os/user"
-	"sort"
+	"slices"
 	"strconv"
 	"strings"
 	"sync"
@@ -125,22 +125,14 @@ func checkMetricType(t string) bool {
 	return ok
 }
 
-func eventsToEventStr(events map[string]string) string {
-	elist := make([]string, 0)
-	for k, v := range events {
-		elist = append(elist, fmt.Sprintf("%s:%s", v, k))
-	}
-	return strings.Join(elist, ",")
-}
-
 func genLikwidEventSet(input LikwidCollectorEventsetConfig) LikwidEventsetConfig {
-	tmplist := make([]string, 0)
+	clist := make([]string, 0, len(input.Events))
-	clist := make([]string, 0)
 	for k := range input.Events {
 		clist = append(clist, k)
 	}
-	sort.Strings(clist)
+	slices.Sort(clist)
-	elist := make([]*C.char, 0)
+	tmplist := make([]string, 0, len(clist))
+	elist := make([]*C.char, 0, len(clist))
 	for _, k := range clist {
 		v := input.Events[k]
 		tmplist = append(tmplist, fmt.Sprintf("%s:%s", v, k))
@@ -217,7 +209,7 @@ func (m *LikwidCollector) Init(config json.RawMessage) error {
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
-			return err
+			return fmt.Errorf("%s Init(): failed to unmarshal JSON config: %w", m.name, err)
 		}
 	}
 	lib := dl.New(m.config.LibraryPath, LIKWID_LIB_DL_FLAGS)
@@ -226,13 +218,13 @@ func (m *LikwidCollector) Init(config json.RawMessage) error {
 	}
 	err := lib.Open()
 	if err != nil {
-		return fmt.Errorf("error opening %s: %v", m.config.LibraryPath, err)
+		return fmt.Errorf("error opening %s: %w", m.config.LibraryPath, err)
 	}
 
 	if m.config.ForceOverwrite {
 		cclog.ComponentDebug(m.name, "Set LIKWID_FORCE=1")
 		if err := os.Setenv("LIKWID_FORCE", "1"); err != nil {
-			return fmt.Errorf("error setting environment variable LIKWID_FORCE=1: %v", err)
+			return fmt.Errorf("error setting environment variable LIKWID_FORCE=1: %w", err)
 		}
 	}
 	if err := m.setup(); err != nil {
@@ -327,7 +319,7 @@ func (m *LikwidCollector) Init(config json.RawMessage) error {
 				p = m.config.DaemonPath
 			}
 			if err := os.Setenv("PATH", p); err != nil {
-				return fmt.Errorf("error setting environment variable PATH=%s: %v", p, err)
+				return fmt.Errorf("error setting environment variable PATH=%s: %w", p, err)
 			}
 		}
 		C.HPMmode(1)
@@ -381,7 +373,6 @@ func (m *LikwidCollector) Init(config json.RawMessage) error {
 // take a measurement for 'interval' seconds of event set index 'group'
 func (m *LikwidCollector) takeMeasurement(evidx int, evset LikwidEventsetConfig, interval time.Duration) (bool, error) {
 	var ret C.int
-	var gid C.int = -1
 	sigchan := make(chan os.Signal, 1)
 
 	// Watch changes for the lock file ()
@@ -406,10 +397,10 @@ func (m *LikwidCollector) takeMeasurement(evidx int, evset LikwidEventsetConfig,
 			// Create the lock file if it does not exist
 			file, createErr := os.Create(m.config.LockfilePath)
 			if createErr != nil {
-				return true, fmt.Errorf("failed to create lock file: %v", createErr)
+				return true, fmt.Errorf("failed to create lock file: %w", createErr)
 			}
 			if err := file.Close(); err != nil {
-				return true, fmt.Errorf("failed to close lock file: %v", err)
+				return true, fmt.Errorf("failed to close lock file: %w", err)
 			}
 			info, err = os.Stat(m.config.LockfilePath) // Recheck the file after creation
 		}
@@ -462,6 +453,7 @@ func (m *LikwidCollector) takeMeasurement(evidx int, evset LikwidEventsetConfig,
 	signal.Notify(sigchan, syscall.SIGCHLD)
 
 	// Add an event string to LIKWID
+	var gid C.int
 	select {
 	case <-sigchan:
 		gid = -1
@@ -617,7 +609,6 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 				evset.metrics[tid][metric.Name] = value
 				// Now we have the result, send it with the proper tags
 				if !math.IsNaN(value) && metric.Publish {
-					fields := map[string]interface{}{"value": value}
 					y, err :=
 						lp.NewMessage(
 							metric.Name,
@@ -625,12 +616,14 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 								"type": metric.Type,
 							},
 							m.meta,
-							fields,
+							map[string]any{
+								"value": value,
+							},
 							now,
 						)
 					if err == nil {
 						if metric.Type != "node" {
-							y.AddTag("type-id", fmt.Sprintf("%d", domain))
+							y.AddTag("type-id", strconv.Itoa(domain))
 						}
 						if len(metric.Unit) > 0 {
 							y.AddMeta("unit", metric.Unit)
@@ -660,10 +653,10 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 						metric.Name,
 						map[string]string{
 							"type":    "core",
-							"type-id": fmt.Sprintf("%d", coreID),
+							"type-id": strconv.Itoa(coreID),
 						},
 						m.meta,
-						map[string]interface{}{
+						map[string]any{
 							"value": value,
 						},
 						now,
@@ -697,10 +690,10 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 						metric.Name,
 						map[string]string{
 							"type":    "socket",
-							"type-id": fmt.Sprintf("%d", socketID),
+							"type-id": strconv.Itoa(socketID),
 						},
 						m.meta,
-						map[string]interface{}{
+						map[string]any{
 							"value": value,
 						},
 						now,
@@ -734,7 +727,7 @@ func (m *LikwidCollector) calcEventsetMetrics(evset LikwidEventsetConfig, interv
 						"type": "node",
 					},
 					m.meta,
-					map[string]interface{}{
+					map[string]any{
 						"value": totalNodeValue,
 					},
 					now,
@@ -792,14 +785,14 @@ func (m *LikwidCollector) calcGlobalMetrics(groups []LikwidEventsetConfig, inter
 									"type": metric.Type,
 								},
 								m.meta,
-								map[string]interface{}{
+								map[string]any{
 									"value": value,
 								},
 								now,
 							)
 						if err == nil {
 							if metric.Type != "node" {
-								y.AddTag("type-id", fmt.Sprintf("%d", domain))
+								y.AddTag("type-id", strconv.Itoa(domain))
 							}
 							if len(metric.Unit) > 0 {
 								y.AddMeta("unit", metric.Unit)
@@ -815,7 +808,7 @@ func (m *LikwidCollector) calcGlobalMetrics(groups []LikwidEventsetConfig, inter
 }
 
 func (m *LikwidCollector) ReadThread(interval time.Duration, output chan lp.CCMessage) {
-	var err error = nil
+	var err error
 	groups := make([]LikwidEventsetConfig, 0)
 
 	for evidx, evset := range m.config.Eventsets {

collectors/loadavgMetric.go

@@ -102,7 +102,7 @@ func (m *LoadavgCollector) Read(interval time.Duration, output chan lp.CCMessage
 		if m.load_skips[i] {
 			continue
 		}
-		y, err := lp.NewMessage(name, m.tags, m.meta, map[string]interface{}{"value": x}, now)
+		y, err := lp.NewMessage(name, m.tags, m.meta, map[string]any{"value": x}, now)
 		if err == nil {
 			output <- y
 		}
@@ -121,7 +121,7 @@ func (m *LoadavgCollector) Read(interval time.Duration, output chan lp.CCMessage
 		if m.proc_skips[i] {
 			continue
 		}
-		y, err := lp.NewMessage(name, m.tags, m.meta, map[string]interface{}{"value": x}, now)
+		y, err := lp.NewMessage(name, m.tags, m.meta, map[string]any{"value": x}, now)
 		if err == nil {
 			output <- y
 		}

collectors/lustreMetric.go

@@ -404,23 +404,23 @@ func (m *LustreCollector) Read(interval time.Duration, output chan lp.CCMessage)
 			} else {
 				use_x = devData[def.name]
 			}
-			var value interface{}
+			var value any
 			switch def.calc {
 			case "none":
 				value = use_x
-				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
+				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]any{"value": value}, time.Now())
 			case "difference":
 				value = use_x - devData[def.name]
 				if value.(int64) < 0 {
 					value = 0
 				}
-				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
+				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]any{"value": value}, time.Now())
 			case "derivative":
 				value = float64(use_x-devData[def.name]) / tdiff.Seconds()
 				if value.(float64) < 0 {
 					value = 0
 				}
-				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]interface{}{"value": value}, time.Now())
+				y, err = lp.NewMessage(def.name, m.tags, m.meta, map[string]any{"value": value}, time.Now())
 			}
 			if err == nil {
 				y.AddTag("device", device)

collectors/memstatMetric.go

@@ -159,7 +159,7 @@ func (m *MemstatCollector) Init(config json.RawMessage) error {
 							file: f,
 							tags: map[string]string{
 								"type":    "memoryDomain",
-								"type-id": fmt.Sprintf("%d", id),
+								"type-id": strconv.Itoa(id),
 							},
 						}
 						m.nodefiles[id] = f
@@ -188,7 +188,7 @@ func (m *MemstatCollector) Read(interval time.Duration, output chan lp.CCMessage
 				}
 			}
 
-			y, err := lp.NewMessage(name, tags, m.meta, map[string]interface{}{"value": value}, time.Now())
+			y, err := lp.NewMessage(name, tags, m.meta, map[string]any{"value": value}, time.Now())
 			if err == nil {
 				if len(unit) > 0 {
 					y.AddMeta("unit", unit)
@@ -221,7 +221,7 @@ func (m *MemstatCollector) Read(interval time.Duration, output chan lp.CCMessage
 					}
 				}
 			}
-			y, err := lp.NewMessage("mem_used", tags, m.meta, map[string]interface{}{"value": memUsed}, time.Now())
+			y, err := lp.NewMessage("mem_used", tags, m.meta, map[string]any{"value": memUsed}, time.Now())
 			if err == nil {
 				if len(unit) > 0 {
 					y.AddMeta("unit", unit)

collectors/netstatMetric.go

@@ -240,14 +240,14 @@ func (m *NetstatCollector) Read(interval time.Duration, output chan lp.CCMessage
 					continue
 				}
 				if m.config.SendAbsoluteValues {
-					if y, err := lp.NewMessage(metric.name, metric.tags, metric.meta, map[string]interface{}{"value": v}, now); err == nil {
+					if y, err := lp.NewMessage(metric.name, metric.tags, metric.meta, map[string]any{"value": v}, now); err == nil {
 						output <- y
 					}
 				}
 				if m.config.SendDerivedValues {
 					if metric.lastValue >= 0 {
 						rate := float64(v-metric.lastValue) / timeDiff
-						if y, err := lp.NewMessage(metric.name+"_bw", metric.tags, metric.meta_rates, map[string]interface{}{"value": rate}, now); err == nil {
+						if y, err := lp.NewMessage(metric.name+"_bw", metric.tags, metric.meta_rates, map[string]any{"value": rate}, now); err == nil {
 							output <- y
 						}
 					}

collectors/nfsMetric.go

@@ -10,7 +10,6 @@ package collectors
 import (
 	"encoding/json"
 	"fmt"
-	"log"
 	"slices"
 
 	//	"os"
@@ -49,7 +48,7 @@ func (m *nfsCollector) initStats() error {
 
 	// Wait for cmd end
 	if err := cmd.Wait(); err != nil {
-		return fmt.Errorf("initStats(): %w", err)
+		return fmt.Errorf("%s initStats(): %w", m.name, err)
 	}
 
 	buffer, err := cmd.Output()
@@ -81,7 +80,7 @@ func (m *nfsCollector) updateStats() error {
 
 	// Wait for cmd end
 	if err := cmd.Wait(); err != nil {
-		return fmt.Errorf("updateStats(): %w", err)
+		return fmt.Errorf("%s updateStats(): %w", m.name, err)
 	}
 
 	buffer, err := cmd.Output()
@@ -114,8 +113,7 @@ func (m *nfsCollector) MainInit(config json.RawMessage) error {
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
-			log.Print(err.Error())
+			return fmt.Errorf("%s Init(): failed to unmarshal JSON config: %w", m.name, err)
-			return err
 		}
 	}
 	m.meta = map[string]string{
@@ -128,11 +126,11 @@ func (m *nfsCollector) MainInit(config json.RawMessage) error {
 	// Check if nfsstat is in executable search path
 	_, err := exec.LookPath(m.config.Nfsstats)
 	if err != nil {
-		return fmt.Errorf("NfsCollector.Init(): Failed to find nfsstat binary '%s': %v", m.config.Nfsstats, err)
+		return fmt.Errorf("%s Init(): Failed to find nfsstat binary '%s': %w", m.name, m.config.Nfsstats, err)
 	}
 	m.data = make(map[string]NfsCollectorData)
 	if err := m.initStats(); err != nil {
-		return fmt.Errorf("NfsCollector.Init(): %w", err)
+		return fmt.Errorf("%s Init(): %w", m.name, err)
 	}
 	m.init = true
 	m.parallel = true
@@ -152,7 +150,7 @@ func (m *nfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 		)
 		return
 	}
-	prefix := ""
+	var prefix string
 	switch m.version {
 	case "v3":
 		prefix = "nfs3"
@@ -167,7 +165,7 @@ func (m *nfsCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 			continue
 		}
 		value := data.current - data.last
-		y, err := lp.NewMessage(fmt.Sprintf("%s_%s", prefix, name), m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
+		y, err := lp.NewMessage(fmt.Sprintf("%s_%s", prefix, name), m.tags, m.meta, map[string]any{"value": value}, timestamp)
 		if err == nil {
 			y.AddMeta("version", m.version)
 			output <- y

collectors/nfsiostatMetric.go

@@ -143,7 +143,13 @@ func (m *NfsIOStatCollector) Read(interval time.Duration, output chan lp.CCMessa
 		if old, ok := m.data[mntpoint]; ok {
 			for name, newVal := range values {
 				if m.config.SendAbsoluteValues {
-					msg, err := lp.NewMessage(fmt.Sprintf("nfsio_%s", name), m.tags, m.meta, map[string]interface{}{"value": newVal}, now)
+					msg, err := lp.NewMessage(
+						"nfsio_"+name,
+						m.tags,
+						m.meta,
+						map[string]any{
+							"value": newVal},
+						now)
 					if err == nil {
 						msg.AddTag("stype", "filesystem")
 						msg.AddTag("stype-id", mntpoint)
@@ -152,7 +158,7 @@ func (m *NfsIOStatCollector) Read(interval time.Duration, output chan lp.CCMessa
 				}
 				if m.config.SendDerivedValues {
 					rate := float64(newVal-old[name]) / timeDiff
-					msg, err := lp.NewMessage(fmt.Sprintf("nfsio_%s_bw", name), m.tags, m.meta, map[string]interface{}{"value": rate}, now)
+					msg, err := lp.NewMessage(fmt.Sprintf("nfsio_%s_bw", name), m.tags, m.meta, map[string]any{"value": rate}, now)
 					if err == nil {
 						if strings.HasPrefix(name, "page") {
 							msg.AddMeta("unit", "4K_pages/s")

collectors/numastatsMetric.go

@@ -84,7 +84,7 @@ func (m *NUMAStatsCollector) Init(config json.RawMessage) error {
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
-			return fmt.Errorf("unable to unmarshal numastat configuration: %s", err.Error())
+			return fmt.Errorf("%s Init(): unable to unmarshal numastat configuration: %w", m.name, err)
 		}
 	}
 
@@ -93,10 +93,10 @@ func (m *NUMAStatsCollector) Init(config json.RawMessage) error {
 	globPattern := base + "[0-9]*"
 	dirs, err := filepath.Glob(globPattern)
 	if err != nil {
-		return fmt.Errorf("unable to glob files with pattern '%s'", globPattern)
+		return fmt.Errorf("%s Init(): unable to glob files with pattern '%s'", m.name, globPattern)
 	}
 	if dirs == nil {
-		return fmt.Errorf("unable to find any files with pattern '%s'", globPattern)
+		return fmt.Errorf("%s Init(): unable to find any files with pattern '%s'", m.name, globPattern)
 	}
 	m.topology = make([]NUMAStatsCollectorTopolgy, 0, len(dirs))
 	for _, dir := range dirs {

collectors/nvidiaMetric.go

@@ -14,6 +14,7 @@ import (
 	"log"
 	"maps"
 	"slices"
+	"strconv"
 	"strings"
 	"time"
 
@@ -109,10 +110,10 @@ func (m *NvidiaCollector) Init(config json.RawMessage) error {
 	// For all GPUs
 	idx := 0
 	m.gpus = make([]NvidiaCollectorDevice, num_gpus)
-	for i := 0; i < num_gpus; i++ {
+	for i := range num_gpus {
 
 		// Skip excluded devices by ID
-		str_i := fmt.Sprintf("%d", i)
+		str_i := strconv.Itoa(i)
 		if slices.Contains(m.config.ExcludeDevices, str_i) {
 			cclog.ComponentDebug(m.name, "Skipping excluded device", str_i)
 			continue
@@ -239,7 +240,7 @@ func readMemoryInfo(device *NvidiaCollectorDevice, output chan lp.CCMessage) err
 
 		if !device.excludeMetrics["nv_fb_mem_total"] {
 			t := float64(total) / (1024 * 1024)
-			y, err := lp.NewMessage("nv_fb_mem_total", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
+			y, err := lp.NewMetric("nv_fb_mem_total", device.tags, device.meta, t, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MByte")
 				output <- y
@@ -248,7 +249,7 @@ func readMemoryInfo(device *NvidiaCollectorDevice, output chan lp.CCMessage) err
 
 		if !device.excludeMetrics["nv_fb_mem_used"] {
 			f := float64(used) / (1024 * 1024)
-			y, err := lp.NewMessage("nv_fb_mem_used", device.tags, device.meta, map[string]interface{}{"value": f}, time.Now())
+			y, err := lp.NewMetric("nv_fb_mem_used", device.tags, device.meta, f, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MByte")
 				output <- y
@@ -257,7 +258,7 @@ func readMemoryInfo(device *NvidiaCollectorDevice, output chan lp.CCMessage) err
 
 		if v2 && !device.excludeMetrics["nv_fb_mem_reserved"] {
 			r := float64(reserved) / (1024 * 1024)
-			y, err := lp.NewMessage("nv_fb_mem_reserved", device.tags, device.meta, map[string]interface{}{"value": r}, time.Now())
+			y, err := lp.NewMetric("nv_fb_mem_reserved", device.tags, device.meta, r, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MByte")
 				output <- y
@@ -276,7 +277,7 @@ func readBarMemoryInfo(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		}
 		if !device.excludeMetrics["nv_bar1_mem_total"] {
 			t := float64(meminfo.Bar1Total) / (1024 * 1024)
-			y, err := lp.NewMessage("nv_bar1_mem_total", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
+			y, err := lp.NewMetric("nv_bar1_mem_total", device.tags, device.meta, t, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MByte")
 				output <- y
@@ -284,7 +285,7 @@ func readBarMemoryInfo(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		}
 		if !device.excludeMetrics["nv_bar1_mem_used"] {
 			t := float64(meminfo.Bar1Used) / (1024 * 1024)
-			y, err := lp.NewMessage("nv_bar1_mem_used", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
+			y, err := lp.NewMetric("nv_bar1_mem_used", device.tags, device.meta, t, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MByte")
 				output <- y
@@ -318,14 +319,14 @@ func readUtilization(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 		util, ret := nvml.DeviceGetUtilizationRates(device.device)
 		if ret == nvml.SUCCESS {
 			if !device.excludeMetrics["nv_util"] {
-				y, err := lp.NewMessage("nv_util", device.tags, device.meta, map[string]interface{}{"value": float64(util.Gpu)}, time.Now())
+				y, err := lp.NewMetric("nv_util", device.tags, device.meta, float64(util.Gpu), time.Now())
 				if err == nil {
 					y.AddMeta("unit", "%")
 					output <- y
 				}
 			}
 			if !device.excludeMetrics["nv_mem_util"] {
-				y, err := lp.NewMessage("nv_mem_util", device.tags, device.meta, map[string]interface{}{"value": float64(util.Memory)}, time.Now())
+				y, err := lp.NewMetric("nv_mem_util", device.tags, device.meta, float64(util.Memory), time.Now())
 				if err == nil {
 					y.AddMeta("unit", "%")
 					output <- y
@@ -345,7 +346,7 @@ func readTemp(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 		// * NVML_TEMPERATURE_COUNT
 		temp, ret := nvml.DeviceGetTemperature(device.device, nvml.TEMPERATURE_GPU)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_temp", device.tags, device.meta, map[string]interface{}{"value": float64(temp)}, time.Now())
+			y, err := lp.NewMetric("nv_temp", device.tags, device.meta, float64(temp), time.Now())
 			if err == nil {
 				y.AddMeta("unit", "degC")
 				output <- y
@@ -368,7 +369,7 @@ func readFan(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 		// This value may exceed 100% in certain cases.
 		fan, ret := nvml.DeviceGetFanSpeed(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_fan", device.tags, device.meta, map[string]interface{}{"value": float64(fan)}, time.Now())
+			y, err := lp.NewMetric("nv_fan", device.tags, device.meta, float64(fan), time.Now())
 			if err == nil {
 				y.AddMeta("unit", "%")
 				output <- y
@@ -378,27 +379,6 @@ func readFan(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 	return nil
 }
 
-// func readFans(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
-// 	if !device.excludeMetrics["nv_fan"] {
-// 		numFans, ret := nvml.DeviceGetNumFans(device.device)
-// 		if ret == nvml.SUCCESS {
-// 			for i := 0; i < numFans; i++ {
-// 				fan, ret := nvml.DeviceGetFanSpeed_v2(device.device, i)
-// 				if ret == nvml.SUCCESS {
-// 					y, err := lp.NewMessage("nv_fan", device.tags, device.meta, map[string]interface{}{"value": float64(fan)}, time.Now())
-// 					if err == nil {
-// 						y.AddMeta("unit", "%")
-// 						y.AddTag("stype", "fan")
-// 						y.AddTag("stype-id", fmt.Sprintf("%d", i))
-// 						output <- y
-// 					}
-// 				}
-// 			}
-// 		}
-// 	}
-// 	return nil
-// }
-
 func readEccMode(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 	if !device.excludeMetrics["nv_ecc_mode"] {
 		// Retrieves the current and pending ECC modes for the device.
@@ -415,17 +395,17 @@ func readEccMode(device *NvidiaCollectorDevice, output chan lp.CCMessage) error
 			var err error
 			switch ecc_pend {
 			case nvml.FEATURE_DISABLED:
-				y, err = lp.NewMessage("nv_ecc_mode", device.tags, device.meta, map[string]interface{}{"value": "OFF"}, time.Now())
+				y, err = lp.NewMetric("nv_ecc_mode", device.tags, device.meta, "OFF", time.Now())
 			case nvml.FEATURE_ENABLED:
-				y, err = lp.NewMessage("nv_ecc_mode", device.tags, device.meta, map[string]interface{}{"value": "ON"}, time.Now())
+				y, err = lp.NewMetric("nv_ecc_mode", device.tags, device.meta, "ON", time.Now())
 			default:
-				y, err = lp.NewMessage("nv_ecc_mode", device.tags, device.meta, map[string]interface{}{"value": "UNKNOWN"}, time.Now())
+				y, err = lp.NewMetric("nv_ecc_mode", device.tags, device.meta, "UNKNOWN", time.Now())
 			}
 			if err == nil {
 				output <- y
 			}
 		case nvml.ERROR_NOT_SUPPORTED:
-			y, err := lp.NewMessage("nv_ecc_mode", device.tags, device.meta, map[string]interface{}{"value": "N/A"}, time.Now())
+			y, err := lp.NewMetric("nv_ecc_mode", device.tags, device.meta, "N/A", time.Now())
 			if err == nil {
 				output <- y
 			}
@@ -445,7 +425,7 @@ func readPerfState(device *NvidiaCollectorDevice, output chan lp.CCMessage) erro
 		// 32: Unknown performance state.
 		pState, ret := nvml.DeviceGetPerformanceState(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_perf_state", device.tags, device.meta, map[string]interface{}{"value": fmt.Sprintf("P%d", int(pState))}, time.Now())
+			y, err := lp.NewMetric("nv_perf_state", device.tags, device.meta, fmt.Sprintf("P%d", int(pState)), time.Now())
 			if err == nil {
 				output <- y
 			}
@@ -471,7 +451,7 @@ func readPowerUsage(device *NvidiaCollectorDevice, output chan lp.CCMessage) err
 		if mode == nvml.FEATURE_ENABLED {
 			power, ret := nvml.DeviceGetPowerUsage(device.device)
 			if ret == nvml.SUCCESS {
-				y, err := lp.NewMessage("nv_power_usage", device.tags, device.meta, map[string]interface{}{"value": float64(power) / 1000}, time.Now())
+				y, err := lp.NewMetric("nv_power_usage", device.tags, device.meta, float64(power)/1000, time.Now())
 				if err == nil {
 					y.AddMeta("unit", "watts")
 					output <- y
@@ -497,7 +477,12 @@ func readEnergyConsumption(device *NvidiaCollectorDevice, output chan lp.CCMessa
 			if ret == nvml.SUCCESS {
 				if device.lastEnergyReading != 0 {
 					if !device.excludeMetrics["nv_energy"] {
-						y, err := lp.NewMetric("nv_energy", device.tags, device.meta, (energy-device.lastEnergyReading)/1000, now)
+						y, err := lp.NewMetric(
+							"nv_energy",
+							device.tags,
+							device.meta,
+							(energy-device.lastEnergyReading)/1000,
+							now)
 						if err == nil {
 							y.AddMeta("unit", "Joules")
 							output <- y
@@ -539,7 +524,7 @@ func readClocks(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 	if !device.excludeMetrics["nv_graphics_clock"] {
 		graphicsClock, ret := nvml.DeviceGetClockInfo(device.device, nvml.CLOCK_GRAPHICS)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_graphics_clock", device.tags, device.meta, map[string]interface{}{"value": float64(graphicsClock)}, time.Now())
+			y, err := lp.NewMetric("nv_graphics_clock", device.tags, device.meta, float64(graphicsClock), time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MHz")
 				output <- y
@@ -550,7 +535,7 @@ func readClocks(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 	if !device.excludeMetrics["nv_sm_clock"] {
 		smCock, ret := nvml.DeviceGetClockInfo(device.device, nvml.CLOCK_SM)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_sm_clock", device.tags, device.meta, map[string]interface{}{"value": float64(smCock)}, time.Now())
+			y, err := lp.NewMetric("nv_sm_clock", device.tags, device.meta, float64(smCock), time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MHz")
 				output <- y
@@ -561,7 +546,7 @@ func readClocks(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 	if !device.excludeMetrics["nv_mem_clock"] {
 		memClock, ret := nvml.DeviceGetClockInfo(device.device, nvml.CLOCK_MEM)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_mem_clock", device.tags, device.meta, map[string]interface{}{"value": float64(memClock)}, time.Now())
+			y, err := lp.NewMetric("nv_mem_clock", device.tags, device.meta, float64(memClock), time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MHz")
 				output <- y
@@ -571,7 +556,7 @@ func readClocks(device *NvidiaCollectorDevice, output chan lp.CCMessage) error {
 	if !device.excludeMetrics["nv_video_clock"] {
 		memClock, ret := nvml.DeviceGetClockInfo(device.device, nvml.CLOCK_VIDEO)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_video_clock", device.tags, device.meta, map[string]interface{}{"value": float64(memClock)}, time.Now())
+			y, err := lp.NewMetric("nv_video_clock", device.tags, device.meta, float64(memClock), time.Now())
 			if err == nil {
 				y.AddMeta("unit", "MHz")
 				output <- y
@@ -652,7 +637,7 @@ func readEccErrors(device *NvidiaCollectorDevice, output chan lp.CCMessage) erro
 		// i.e. the total set of errors across the entire device.
 		ecc_db, ret := nvml.DeviceGetTotalEccErrors(device.device, nvml.MEMORY_ERROR_TYPE_UNCORRECTED, nvml.AGGREGATE_ECC)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_ecc_uncorrected_error", device.tags, device.meta, map[string]interface{}{"value": float64(ecc_db)}, time.Now())
+			y, err := lp.NewMetric("nv_ecc_uncorrected_error", device.tags, device.meta, float64(ecc_db), time.Now())
 			if err == nil {
 				output <- y
 			}
@@ -661,7 +646,7 @@ func readEccErrors(device *NvidiaCollectorDevice, output chan lp.CCMessage) erro
 	if !device.excludeMetrics["nv_ecc_corrected_error"] {
 		ecc_sb, ret := nvml.DeviceGetTotalEccErrors(device.device, nvml.MEMORY_ERROR_TYPE_CORRECTED, nvml.AGGREGATE_ECC)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_ecc_corrected_error", device.tags, device.meta, map[string]interface{}{"value": float64(ecc_sb)}, time.Now())
+			y, err := lp.NewMetric("nv_ecc_corrected_error", device.tags, device.meta, float64(ecc_sb), time.Now())
 			if err == nil {
 				output <- y
 			}
@@ -680,7 +665,7 @@ func readPowerLimit(device *NvidiaCollectorDevice, output chan lp.CCMessage) err
 		// If the card's total power draw reaches this limit the power management algorithm kicks in.
 		pwr_limit, ret := nvml.DeviceGetPowerManagementLimit(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_power_max_limit", device.tags, device.meta, map[string]interface{}{"value": float64(pwr_limit) / 1000}, time.Now())
+			y, err := lp.NewMetric("nv_power_max_limit", device.tags, device.meta, float64(pwr_limit)/1000, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "watts")
 				output <- y
@@ -707,7 +692,7 @@ func readEncUtilization(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		// Note: On MIG-enabled GPUs, querying encoder utilization is not currently supported.
 		enc_util, _, ret := nvml.DeviceGetEncoderUtilization(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_encoder_util", device.tags, device.meta, map[string]interface{}{"value": float64(enc_util)}, time.Now())
+			y, err := lp.NewMetric("nv_encoder_util", device.tags, device.meta, float64(enc_util), time.Now())
 			if err == nil {
 				y.AddMeta("unit", "%")
 				output <- y
@@ -734,7 +719,7 @@ func readDecUtilization(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		// Note: On MIG-enabled GPUs, querying encoder utilization is not currently supported.
 		dec_util, _, ret := nvml.DeviceGetDecoderUtilization(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_decoder_util", device.tags, device.meta, map[string]interface{}{"value": float64(dec_util)}, time.Now())
+			y, err := lp.NewMetric("nv_decoder_util", device.tags, device.meta, float64(dec_util), time.Now())
 			if err == nil {
 				y.AddMeta("unit", "%")
 				output <- y
@@ -761,13 +746,13 @@ func readRemappedRows(device *NvidiaCollectorDevice, output chan lp.CCMessage) e
 		corrected, uncorrected, pending, failure, ret := nvml.DeviceGetRemappedRows(device.device)
 		if ret == nvml.SUCCESS {
 			if !device.excludeMetrics["nv_remapped_rows_corrected"] {
-				y, err := lp.NewMessage("nv_remapped_rows_corrected", device.tags, device.meta, map[string]interface{}{"value": float64(corrected)}, time.Now())
+				y, err := lp.NewMetric("nv_remapped_rows_corrected", device.tags, device.meta, float64(corrected), time.Now())
 				if err == nil {
 					output <- y
 				}
 			}
 			if !device.excludeMetrics["nv_remapped_rows_uncorrected"] {
-				y, err := lp.NewMessage("nv_remapped_rows_corrected", device.tags, device.meta, map[string]interface{}{"value": float64(uncorrected)}, time.Now())
+				y, err := lp.NewMetric("nv_remapped_rows_corrected", device.tags, device.meta, float64(uncorrected), time.Now())
 				if err == nil {
 					output <- y
 				}
@@ -777,7 +762,7 @@ func readRemappedRows(device *NvidiaCollectorDevice, output chan lp.CCMessage) e
 				if pending {
 					p = 1
 				}
-				y, err := lp.NewMessage("nv_remapped_rows_pending", device.tags, device.meta, map[string]interface{}{"value": p}, time.Now())
+				y, err := lp.NewMetric("nv_remapped_rows_pending", device.tags, device.meta, p, time.Now())
 				if err == nil {
 					output <- y
 				}
@@ -787,7 +772,7 @@ func readRemappedRows(device *NvidiaCollectorDevice, output chan lp.CCMessage) e
 				if failure {
 					f = 1
 				}
-				y, err := lp.NewMessage("nv_remapped_rows_failure", device.tags, device.meta, map[string]interface{}{"value": f}, time.Now())
+				y, err := lp.NewMetric("nv_remapped_rows_failure", device.tags, device.meta, f, time.Now())
 				if err == nil {
 					output <- y
 				}
@@ -821,7 +806,7 @@ func readProcessCounts(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		//        Querying per-instance information using MIG device handles is not supported if the device is in vGPU Host virtualization mode.
 		procList, ret := nvml.DeviceGetComputeRunningProcesses(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_compute_processes", device.tags, device.meta, map[string]interface{}{"value": len(procList)}, time.Now())
+			y, err := lp.NewMetric("nv_compute_processes", device.tags, device.meta, len(procList), time.Now())
 			if err == nil {
 				output <- y
 			}
@@ -850,7 +835,7 @@ func readProcessCounts(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		//       Querying per-instance information using MIG device handles is not supported if the device is in vGPU Host virtualization mode.
 		procList, ret := nvml.DeviceGetGraphicsRunningProcesses(device.device)
 		if ret == nvml.SUCCESS {
-			y, err := lp.NewMessage("nv_graphics_processes", device.tags, device.meta, map[string]interface{}{"value": len(procList)}, time.Now())
+			y, err := lp.NewMetric("nv_graphics_processes", device.tags, device.meta, len(procList), time.Now())
 			if err == nil {
 				output <- y
 			}
@@ -880,7 +865,7 @@ func readProcessCounts(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 	// 	//       Querying per-instance information using MIG device handles is not supported if the device is in vGPU Host virtualization mode.
 	// 	procList, ret := nvml.DeviceGetMPSComputeRunningProcesses(device.device)
 	// 	if ret == nvml.SUCCESS {
-	// 		y, err := lp.NewMessage("nv_mps_compute_processes", device.tags, device.meta, map[string]interface{}{"value": len(procList)}, time.Now())
+	// 		y, err := lp.NewMetric("nv_mps_compute_processes", device.tags, device.meta, len(procList), time.Now())
 	// 		if err == nil {
 	// 			output <- y
 	// 		}
@@ -908,7 +893,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_POWER)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMessage("nv_violation_power", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
+			y, err := lp.NewMetric("nv_violation_power", device.tags, device.meta, t, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -920,7 +905,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_THERMAL)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMessage("nv_violation_thermal", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
+			y, err := lp.NewMetric("nv_violation_thermal", device.tags, device.meta, t, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -932,7 +917,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_SYNC_BOOST)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMessage("nv_violation_sync_boost", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
+			y, err := lp.NewMetric("nv_violation_sync_boost", device.tags, device.meta, t, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -944,7 +929,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_BOARD_LIMIT)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMessage("nv_violation_board_limit", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
+			y, err := lp.NewMetric("nv_violation_board_limit", device.tags, device.meta, t, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -956,7 +941,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_LOW_UTILIZATION)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMessage("nv_violation_low_util", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
+			y, err := lp.NewMetric("nv_violation_low_util", device.tags, device.meta, t, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -968,7 +953,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_RELIABILITY)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMessage("nv_violation_reliability", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
+			y, err := lp.NewMetric("nv_violation_reliability", device.tags, device.meta, t, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -980,7 +965,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_TOTAL_APP_CLOCKS)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMessage("nv_violation_below_app_clock", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
+			y, err := lp.NewMetric("nv_violation_below_app_clock", device.tags, device.meta, t, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -992,7 +977,7 @@ func readViolationStats(device *NvidiaCollectorDevice, output chan lp.CCMessage)
 		violTime, ret = nvml.DeviceGetViolationStatus(device.device, nvml.PERF_POLICY_TOTAL_BASE_CLOCKS)
 		if ret == nvml.SUCCESS {
 			t := float64(violTime.ViolationTime) * 1e-9
-			y, err := lp.NewMessage("nv_violation_below_base_clock", device.tags, device.meta, map[string]interface{}{"value": t}, time.Now())
+			y, err := lp.NewMetric("nv_violation_below_base_clock", device.tags, device.meta, t, time.Now())
 			if err == nil {
 				y.AddMeta("unit", "sec")
 				output <- y
@@ -1015,19 +1000,19 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 	var aggregate_recovery_errors uint64 = 0
 	var aggregate_crc_flit_errors uint64 = 0
 
-	for i := 0; i < nvml.NVLINK_MAX_LINKS; i++ {
+	for i := range nvml.NVLINK_MAX_LINKS {
 		state, ret := nvml.DeviceGetNvLinkState(device.device, i)
 		if ret == nvml.SUCCESS {
 			if state == nvml.FEATURE_ENABLED {
 				if !device.excludeMetrics["nv_nvlink_crc_errors"] {
 					// Data link receive data CRC error counter
 					count, ret := nvml.DeviceGetNvLinkErrorCounter(device.device, i, nvml.NVLINK_ERROR_DL_CRC_DATA)
-					aggregate_crc_errors = aggregate_crc_errors + count
+					aggregate_crc_errors += count
 					if ret == nvml.SUCCESS {
-						y, err := lp.NewMessage("nv_nvlink_crc_errors", device.tags, device.meta, map[string]interface{}{"value": count}, time.Now())
+						y, err := lp.NewMetric("nv_nvlink_crc_errors", device.tags, device.meta, count, time.Now())
 						if err == nil {
 							y.AddTag("stype", "nvlink")
-							y.AddTag("stype-id", fmt.Sprintf("%d", i))
+							y.AddTag("stype-id", strconv.Itoa(i))
 							output <- y
 						}
 					}
@@ -1035,12 +1020,12 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 				if !device.excludeMetrics["nv_nvlink_ecc_errors"] {
 					// Data link receive data ECC error counter
 					count, ret := nvml.DeviceGetNvLinkErrorCounter(device.device, i, nvml.NVLINK_ERROR_DL_ECC_DATA)
-					aggregate_ecc_errors = aggregate_ecc_errors + count
+					aggregate_ecc_errors += count
 					if ret == nvml.SUCCESS {
-						y, err := lp.NewMessage("nv_nvlink_ecc_errors", device.tags, device.meta, map[string]interface{}{"value": count}, time.Now())
+						y, err := lp.NewMetric("nv_nvlink_ecc_errors", device.tags, device.meta, count, time.Now())
 						if err == nil {
 							y.AddTag("stype", "nvlink")
-							y.AddTag("stype-id", fmt.Sprintf("%d", i))
+							y.AddTag("stype-id", strconv.Itoa(i))
 							output <- y
 						}
 					}
@@ -1048,12 +1033,12 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 				if !device.excludeMetrics["nv_nvlink_replay_errors"] {
 					// Data link transmit replay error counter
 					count, ret := nvml.DeviceGetNvLinkErrorCounter(device.device, i, nvml.NVLINK_ERROR_DL_REPLAY)
-					aggregate_replay_errors = aggregate_replay_errors + count
+					aggregate_replay_errors += count
 					if ret == nvml.SUCCESS {
-						y, err := lp.NewMessage("nv_nvlink_replay_errors", device.tags, device.meta, map[string]interface{}{"value": count}, time.Now())
+						y, err := lp.NewMetric("nv_nvlink_replay_errors", device.tags, device.meta, count, time.Now())
 						if err == nil {
 							y.AddTag("stype", "nvlink")
-							y.AddTag("stype-id", fmt.Sprintf("%d", i))
+							y.AddTag("stype-id", strconv.Itoa(i))
 							output <- y
 						}
 					}
@@ -1061,12 +1046,12 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 				if !device.excludeMetrics["nv_nvlink_recovery_errors"] {
 					// Data link transmit recovery error counter
 					count, ret := nvml.DeviceGetNvLinkErrorCounter(device.device, i, nvml.NVLINK_ERROR_DL_RECOVERY)
-					aggregate_recovery_errors = aggregate_recovery_errors + count
+					aggregate_recovery_errors += count
 					if ret == nvml.SUCCESS {
-						y, err := lp.NewMessage("nv_nvlink_recovery_errors", device.tags, device.meta, map[string]interface{}{"value": count}, time.Now())
+						y, err := lp.NewMetric("nv_nvlink_recovery_errors", device.tags, device.meta, count, time.Now())
 						if err == nil {
 							y.AddTag("stype", "nvlink")
-							y.AddTag("stype-id", fmt.Sprintf("%d", i))
+							y.AddTag("stype-id", strconv.Itoa(i))
 							output <- y
 						}
 					}
@@ -1074,12 +1059,12 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 				if !device.excludeMetrics["nv_nvlink_crc_flit_errors"] {
 					// Data link receive flow control digit CRC error counter
 					count, ret := nvml.DeviceGetNvLinkErrorCounter(device.device, i, nvml.NVLINK_ERROR_DL_CRC_FLIT)
-					aggregate_crc_flit_errors = aggregate_crc_flit_errors + count
+					aggregate_crc_flit_errors += count
 					if ret == nvml.SUCCESS {
-						y, err := lp.NewMessage("nv_nvlink_crc_flit_errors", device.tags, device.meta, map[string]interface{}{"value": count}, time.Now())
+						y, err := lp.NewMetric("nv_nvlink_crc_flit_errors", device.tags, device.meta, count, time.Now())
 						if err == nil {
 							y.AddTag("stype", "nvlink")
-							y.AddTag("stype-id", fmt.Sprintf("%d", i))
+							y.AddTag("stype-id", strconv.Itoa(i))
 							output <- y
 						}
 					}
@@ -1091,7 +1076,7 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 	// Export aggegated values
 	if !device.excludeMetrics["nv_nvlink_crc_errors"] {
 		// Data link receive data CRC error counter
-		y, err := lp.NewMessage("nv_nvlink_crc_errors_sum", device.tags, device.meta, map[string]interface{}{"value": aggregate_crc_errors}, time.Now())
+		y, err := lp.NewMetric("nv_nvlink_crc_errors_sum", device.tags, device.meta, aggregate_crc_errors, time.Now())
 		if err == nil {
 			y.AddTag("stype", "nvlink")
 			output <- y
@@ -1099,7 +1084,7 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 	}
 	if !device.excludeMetrics["nv_nvlink_ecc_errors"] {
 		// Data link receive data ECC error counter
-		y, err := lp.NewMessage("nv_nvlink_ecc_errors_sum", device.tags, device.meta, map[string]interface{}{"value": aggregate_ecc_errors}, time.Now())
+		y, err := lp.NewMetric("nv_nvlink_ecc_errors_sum", device.tags, device.meta, aggregate_ecc_errors, time.Now())
 		if err == nil {
 			y.AddTag("stype", "nvlink")
 			output <- y
@@ -1107,7 +1092,7 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 	}
 	if !device.excludeMetrics["nv_nvlink_replay_errors"] {
 		// Data link transmit replay error counter
-		y, err := lp.NewMessage("nv_nvlink_replay_errors_sum", device.tags, device.meta, map[string]interface{}{"value": aggregate_replay_errors}, time.Now())
+		y, err := lp.NewMetric("nv_nvlink_replay_errors_sum", device.tags, device.meta, aggregate_replay_errors, time.Now())
 		if err == nil {
 			y.AddTag("stype", "nvlink")
 			output <- y
@@ -1115,7 +1100,7 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 	}
 	if !device.excludeMetrics["nv_nvlink_recovery_errors"] {
 		// Data link transmit recovery error counter
-		y, err := lp.NewMessage("nv_nvlink_recovery_errors_sum", device.tags, device.meta, map[string]interface{}{"value": aggregate_recovery_errors}, time.Now())
+		y, err := lp.NewMetric("nv_nvlink_recovery_errors_sum", device.tags, device.meta, aggregate_recovery_errors, time.Now())
 		if err == nil {
 			y.AddTag("stype", "nvlink")
 			output <- y
@@ -1123,7 +1108,7 @@ func readNVLinkStats(device *NvidiaCollectorDevice, output chan lp.CCMessage) er
 	}
 	if !device.excludeMetrics["nv_nvlink_crc_flit_errors"] {
 		// Data link receive flow control digit CRC error counter
-		y, err := lp.NewMessage("nv_nvlink_crc_flit_errors_sum", device.tags, device.meta, map[string]interface{}{"value": aggregate_crc_flit_errors}, time.Now())
+		y, err := lp.NewMetric("nv_nvlink_crc_flit_errors_sum", device.tags, device.meta, aggregate_crc_flit_errors, time.Now())
 		if err == nil {
 			y.AddTag("stype", "nvlink")
 			output <- y
@@ -1263,7 +1248,7 @@ func (m *NvidiaCollector) Read(interval time.Duration, output chan lp.CCMessage)
 			}
 			cclog.ComponentDebug(m.name, "Reading MIG devices for GPU", i)
 
-			for j := 0; j < maxMig; j++ {
+			for j := range maxMig {
 				mdev, ret := nvml.DeviceGetMigDeviceHandleByIndex(m.gpus[i].device, j)
 				if ret != nvml.SUCCESS {
 					continue
@@ -1302,7 +1287,7 @@ func (m *NvidiaCollector) Read(interval time.Duration, output chan lp.CCMessage)
 					}
 				}
 				if _, ok := migDevice.tags["stype-id"]; !ok {
-					migDevice.tags["stype-id"] = fmt.Sprintf("%d", j)
+					migDevice.tags["stype-id"] = strconv.Itoa(j)
 				}
 				maps.Copy(migDevice.meta, m.gpus[i].meta)
 				if _, ok := migDevice.meta["uuid"]; ok && !m.config.UseUuidForMigDevices {

collectors/raplMetric.go

@@ -249,7 +249,7 @@ func (m *RAPLCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 					"rapl_average_power",
 					p.tags,
 					m.meta,
-					map[string]interface{}{"value": averagePower},
+					map[string]any{"value": averagePower},
 					energyTimestamp)
 				if err == nil {
 					output <- y

collectors/rocmsmiMetric.go

@@ -11,6 +11,8 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"slices"
+	"strconv"
 	"time"
 
 	cclog "github.com/ClusterCockpit/cc-lib/v2/ccLogger"
@@ -87,22 +89,11 @@ func (m *RocmSmiCollector) Init(config json.RawMessage) error {
 		return err
 	}
 
-	exclDev := func(s string) bool {
-		skip_device := false
-		for _, excl := range m.config.ExcludeDevices {
-			if excl == s {
-				skip_device = true
-				break
-			}
-		}
-		return skip_device
-	}
-
 	m.devices = make([]RocmSmiCollectorDevice, 0)
 
-	for i := 0; i < numDevs; i++ {
+	for i := range numDevs {
-		str_i := fmt.Sprintf("%d", i)
+		str_i := strconv.Itoa(i)
-		if exclDev(str_i) {
+		if slices.Contains(m.config.ExcludeDevices, str_i) {
 			continue
 		}
 		device, ret := rocm_smi.DeviceGetHandleByIndex(i)
@@ -126,7 +117,7 @@ func (m *RocmSmiCollector) Init(config json.RawMessage) error {
 			pciInfo.Device,
 			pciInfo.Function)
 
-		if exclDev(pciId) {
+		if slices.Contains(m.config.ExcludeDevices, pciId) {
 			continue
 		}
 
@@ -184,130 +175,130 @@ func (m *RocmSmiCollector) Read(interval time.Duration, output chan lp.CCMessage
 
 		if !dev.excludeMetrics["rocm_gfx_util"] {
 			value := metrics.Average_gfx_activity
-			y, err := lp.NewMessage("rocm_gfx_util", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_gfx_util", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_umc_util"] {
 			value := metrics.Average_umc_activity
-			y, err := lp.NewMessage("rocm_umc_util", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_umc_util", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_mm_util"] {
 			value := metrics.Average_mm_activity
-			y, err := lp.NewMessage("rocm_mm_util", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_mm_util", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_avg_power"] {
 			value := metrics.Average_socket_power
-			y, err := lp.NewMessage("rocm_avg_power", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_avg_power", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_mem"] {
 			value := metrics.Temperature_mem
-			y, err := lp.NewMessage("rocm_temp_mem", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_temp_mem", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_hotspot"] {
 			value := metrics.Temperature_hotspot
-			y, err := lp.NewMessage("rocm_temp_hotspot", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_temp_hotspot", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_edge"] {
 			value := metrics.Temperature_edge
-			y, err := lp.NewMessage("rocm_temp_edge", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_temp_edge", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_vrgfx"] {
 			value := metrics.Temperature_vrgfx
-			y, err := lp.NewMessage("rocm_temp_vrgfx", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_temp_vrgfx", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_vrsoc"] {
 			value := metrics.Temperature_vrsoc
-			y, err := lp.NewMessage("rocm_temp_vrsoc", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_temp_vrsoc", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_vrmem"] {
 			value := metrics.Temperature_vrmem
-			y, err := lp.NewMessage("rocm_temp_vrmem", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_temp_vrmem", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_gfx_clock"] {
 			value := metrics.Average_gfxclk_frequency
-			y, err := lp.NewMessage("rocm_gfx_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_gfx_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_soc_clock"] {
 			value := metrics.Average_socclk_frequency
-			y, err := lp.NewMessage("rocm_soc_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_soc_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_u_clock"] {
 			value := metrics.Average_uclk_frequency
-			y, err := lp.NewMessage("rocm_u_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_u_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_v0_clock"] {
 			value := metrics.Average_vclk0_frequency
-			y, err := lp.NewMessage("rocm_v0_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_v0_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_v1_clock"] {
 			value := metrics.Average_vclk1_frequency
-			y, err := lp.NewMessage("rocm_v1_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_v1_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_d0_clock"] {
 			value := metrics.Average_dclk0_frequency
-			y, err := lp.NewMessage("rocm_d0_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_d0_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_d1_clock"] {
 			value := metrics.Average_dclk1_frequency
-			y, err := lp.NewMessage("rocm_d1_clock", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+			y, err := lp.NewMessage("rocm_d1_clock", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 			if err == nil {
 				output <- y
 			}
 		}
 		if !dev.excludeMetrics["rocm_temp_hbm"] {
-			for i := 0; i < rocm_smi.NUM_HBM_INSTANCES; i++ {
+			for i := range rocm_smi.NUM_HBM_INSTANCES {
 				value := metrics.Temperature_hbm[i]
-				y, err := lp.NewMessage("rocm_temp_hbm", dev.tags, dev.meta, map[string]interface{}{"value": value}, timestamp)
+				y, err := lp.NewMessage("rocm_temp_hbm", dev.tags, dev.meta, map[string]any{"value": value}, timestamp)
 				if err == nil {
 					y.AddTag("stype", "device")
-					y.AddTag("stype-id", fmt.Sprintf("%d", i))
+					y.AddTag("stype-id", strconv.Itoa(i))
 					output <- y
 				}
 			}

collectors/rocmsmiMetric.md

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

collectors/sampleMetric.go

@@ -95,7 +95,7 @@ func (m *SampleCollector) Read(interval time.Duration, output chan lp.CCMessage)
 	// stop := readState()
 	// value = (stop - start) / interval.Seconds()
 
-	y, err := lp.NewMessage("sample_metric", m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
+	y, err := lp.NewMessage("sample_metric", m.tags, m.meta, map[string]any{"value": value}, timestamp)
 	if err == nil {
 		// Send it to output channel
 		output <- y

collectors/sampleTimerMetric.go

@@ -37,11 +37,11 @@ type SampleTimerCollector struct {
 }
 
 func (m *SampleTimerCollector) Init(name string, config json.RawMessage) error {
-	var err error = nil
+	var err error
 	// Always set the name early in Init() to use it in cclog.Component* functions
 	m.name = "SampleTimerCollector"
 	// This is for later use, also call it early
-	if err := m.setup(); err != nil {
+	if err = m.setup(); err != nil {
 		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
 	}
 	// Define meta information sent with each metric
@@ -110,7 +110,7 @@ func (m *SampleTimerCollector) ReadMetrics(timestamp time.Time) {
 	// stop := readState()
 	// value = (stop - start) / interval.Seconds()
 
-	y, err := lp.NewMessage("sample_metric", m.tags, m.meta, map[string]interface{}{"value": value}, timestamp)
+	y, err := lp.NewMessage("sample_metric", m.tags, m.meta, map[string]any{"value": value}, timestamp)
 	if err == nil && m.output != nil {
 		// Send it to output channel if we have a valid channel
 		m.output <- y

collectors/schedstatMetric.go

@@ -53,7 +53,7 @@ func (m *SchedstatCollector) Init(config json.RawMessage) error {
 		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
 	}
 	// Tell whether the collector should be run in parallel with others (reading files, ...)
-	// or it should be run serially, mostly for collectors 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
@@ -90,7 +90,7 @@ func (m *SchedstatCollector) Init(config json.RawMessage) error {
 			waiting, _ := strconv.ParseInt(linefields[8], 10, 64)
 			m.cputags[linefields[0]] = map[string]string{
 				"type":    "hwthread",
-				"type-id": fmt.Sprintf("%d", cpu),
+				"type-id": strconv.Itoa(cpu),
 			}
 			m.olddata[linefields[0]] = map[string]int64{
 				"running": running,
@@ -123,7 +123,7 @@ func (m *SchedstatCollector) ParseProcLine(linefields []string, tags map[string]
 	m.olddata[linefields[0]]["waiting"] = waiting
 	value := l_running + l_waiting
 
-	y, err := lp.NewMessage("cpu_load_core", tags, m.meta, map[string]interface{}{"value": value}, now)
+	y, err := lp.NewMessage("cpu_load_core", tags, m.meta, map[string]any{"value": value}, now)
 	if err == nil {
 		// Send it to output channel
 		output <- y

collectors/selfMetric.go

@@ -59,49 +59,49 @@ func (m *SelfCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 		var memstats runtime.MemStats
 		runtime.ReadMemStats(&memstats)
 
-		y, err := lp.NewMessage("total_alloc", m.tags, m.meta, map[string]interface{}{"value": memstats.TotalAlloc}, timestamp)
+		y, err := lp.NewMessage("total_alloc", m.tags, m.meta, map[string]any{"value": memstats.TotalAlloc}, timestamp)
 		if err == nil {
 			y.AddMeta("unit", "Bytes")
 			output <- y
 		}
-		y, err = lp.NewMessage("heap_alloc", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapAlloc}, timestamp)
+		y, err = lp.NewMessage("heap_alloc", m.tags, m.meta, map[string]any{"value": memstats.HeapAlloc}, timestamp)
 		if err == nil {
 			y.AddMeta("unit", "Bytes")
 			output <- y
 		}
-		y, err = lp.NewMessage("heap_sys", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapSys}, timestamp)
+		y, err = lp.NewMessage("heap_sys", m.tags, m.meta, map[string]any{"value": memstats.HeapSys}, timestamp)
 		if err == nil {
 			y.AddMeta("unit", "Bytes")
 			output <- y
 		}
-		y, err = lp.NewMessage("heap_idle", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapIdle}, timestamp)
+		y, err = lp.NewMessage("heap_idle", m.tags, m.meta, map[string]any{"value": memstats.HeapIdle}, timestamp)
 		if err == nil {
 			y.AddMeta("unit", "Bytes")
 			output <- y
 		}
-		y, err = lp.NewMessage("heap_inuse", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapInuse}, timestamp)
+		y, err = lp.NewMessage("heap_inuse", m.tags, m.meta, map[string]any{"value": memstats.HeapInuse}, timestamp)
 		if err == nil {
 			y.AddMeta("unit", "Bytes")
 			output <- y
 		}
-		y, err = lp.NewMessage("heap_released", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapReleased}, timestamp)
+		y, err = lp.NewMessage("heap_released", m.tags, m.meta, map[string]any{"value": memstats.HeapReleased}, timestamp)
 		if err == nil {
 			y.AddMeta("unit", "Bytes")
 			output <- y
 		}
-		y, err = lp.NewMessage("heap_objects", m.tags, m.meta, map[string]interface{}{"value": memstats.HeapObjects}, timestamp)
+		y, err = lp.NewMessage("heap_objects", m.tags, m.meta, map[string]any{"value": memstats.HeapObjects}, timestamp)
 		if err == nil {
 			output <- y
 		}
 	}
 	if m.config.GoRoutines {
-		y, err := lp.NewMessage("num_goroutines", m.tags, m.meta, map[string]interface{}{"value": runtime.NumGoroutine()}, timestamp)
+		y, err := lp.NewMessage("num_goroutines", m.tags, m.meta, map[string]any{"value": runtime.NumGoroutine()}, timestamp)
 		if err == nil {
 			output <- y
 		}
 	}
 	if m.config.CgoCalls {
-		y, err := lp.NewMessage("num_cgo_calls", m.tags, m.meta, map[string]interface{}{"value": runtime.NumCgoCall()}, timestamp)
+		y, err := lp.NewMessage("num_cgo_calls", m.tags, m.meta, map[string]any{"value": runtime.NumCgoCall()}, timestamp)
 		if err == nil {
 			output <- y
 		}
@@ -112,35 +112,35 @@ func (m *SelfCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 		if err == nil {
 			sec, nsec := rusage.Utime.Unix()
 			t := float64(sec) + (float64(nsec) * 1e-9)
-			y, err := lp.NewMessage("rusage_user_time", m.tags, m.meta, map[string]interface{}{"value": t}, timestamp)
+			y, err := lp.NewMessage("rusage_user_time", m.tags, m.meta, map[string]any{"value": t}, timestamp)
 			if err == nil {
 				y.AddMeta("unit", "seconds")
 				output <- y
 			}
 			sec, nsec = rusage.Stime.Unix()
 			t = float64(sec) + (float64(nsec) * 1e-9)
-			y, err = lp.NewMessage("rusage_system_time", m.tags, m.meta, map[string]interface{}{"value": t}, timestamp)
+			y, err = lp.NewMessage("rusage_system_time", m.tags, m.meta, map[string]any{"value": t}, timestamp)
 			if err == nil {
 				y.AddMeta("unit", "seconds")
 				output <- y
 			}
-			y, err = lp.NewMessage("rusage_vol_ctx_switch", m.tags, m.meta, map[string]interface{}{"value": rusage.Nvcsw}, timestamp)
+			y, err = lp.NewMessage("rusage_vol_ctx_switch", m.tags, m.meta, map[string]any{"value": rusage.Nvcsw}, timestamp)
 			if err == nil {
 				output <- y
 			}
-			y, err = lp.NewMessage("rusage_invol_ctx_switch", m.tags, m.meta, map[string]interface{}{"value": rusage.Nivcsw}, timestamp)
+			y, err = lp.NewMessage("rusage_invol_ctx_switch", m.tags, m.meta, map[string]any{"value": rusage.Nivcsw}, timestamp)
 			if err == nil {
 				output <- y
 			}
-			y, err = lp.NewMessage("rusage_signals", m.tags, m.meta, map[string]interface{}{"value": rusage.Nsignals}, timestamp)
+			y, err = lp.NewMessage("rusage_signals", m.tags, m.meta, map[string]any{"value": rusage.Nsignals}, timestamp)
 			if err == nil {
 				output <- y
 			}
-			y, err = lp.NewMessage("rusage_major_pgfaults", m.tags, m.meta, map[string]interface{}{"value": rusage.Majflt}, timestamp)
+			y, err = lp.NewMessage("rusage_major_pgfaults", m.tags, m.meta, map[string]any{"value": rusage.Majflt}, timestamp)
 			if err == nil {
 				output <- y
 			}
-			y, err = lp.NewMessage("rusage_minor_pgfaults", m.tags, m.meta, map[string]interface{}{"value": rusage.Minflt}, timestamp)
+			y, err = lp.NewMessage("rusage_minor_pgfaults", m.tags, m.meta, map[string]any{"value": rusage.Minflt}, timestamp)
 			if err == nil {
 				output <- y
 			}

collectors/slurmCgroupMetric.go

@@ -79,9 +79,10 @@ func ParseCPUs(cpuset string) ([]int, error) {
 }
 
 func GetAllCPUs() ([]int, error) {
-	data, err := os.ReadFile("/sys/devices/system/cpu/online")
+	cpuOnline := "/sys/devices/system/cpu/online"
+	data, err := os.ReadFile(cpuOnline)
 	if err != nil {
-		return nil, fmt.Errorf("failed to read /sys/devices/system/cpu/online: %v", err)
+		return nil, fmt.Errorf("failed to read file \"%s\": %w", cpuOnline, err)
 	}
 	return ParseCPUs(strings.TrimSpace(string(data)))
 }
@@ -106,16 +107,18 @@ func (m *SlurmCgroupCollector) Init(config json.RawMessage) error {
 		return fmt.Errorf("%s Init(): setup() call failed: %w", m.name, err)
 	}
 	m.parallel = true
-	m.meta = map[string]string{"source": m.name, "group": "SLURM"}
+	m.meta = map[string]string{
-	m.tags = map[string]string{"type": "hwthread"}
+		"source": m.name,
+		"group":  "SLURM"}
+	m.tags = map[string]string{
+		"type": "hwthread"}
 	m.cpuUsed = make(map[int]bool)
 	m.cgroupBase = defaultCgroupBase
 
 	if len(config) > 0 {
 		err = json.Unmarshal(config, &m.config)
 		if err != nil {
-			cclog.ComponentError(m.name, "Error reading config:", err.Error())
+			return fmt.Errorf("%s Init(): Error reading JSON config: %w", m.name, err)
-			return err
 		}
 		m.excludeMetrics = make(map[string]struct{})
 		for _, metric := range m.config.ExcludeMetrics {
@@ -130,19 +133,16 @@ func (m *SlurmCgroupCollector) Init(config json.RawMessage) error {
 	if !m.useSudo {
 		user, err := user.Current()
 		if err != nil {
-			cclog.ComponentError(m.name, "Failed to get current user:", err.Error())
+			return fmt.Errorf("%s Init(): Failed to get current user: %w", m.name, err)
-			return err
 		}
 		if user.Uid != "0" {
-			cclog.ComponentError(m.name, "Reading cgroup files requires root privileges (or enable use_sudo in config)")
+			return fmt.Errorf("%s Init(): Reading cgroup files requires root privileges (or enable use_sudo in config)", m.name)
-			return fmt.Errorf("not root")
 		}
 	}
 
 	m.allCPUs, err = GetAllCPUs()
 	if err != nil {
-		cclog.ComponentError(m.name, "Error reading online CPUs:", err.Error())
+		return fmt.Errorf("%s Init(): Error reading online CPUs: %w", m.name, err)
-		return err
 	}
 
 	m.init = true
@@ -159,7 +159,9 @@ func (m *SlurmCgroupCollector) ReadJobData(jobdir string) (SlurmJobData, error)
 		CpuSet:           []int{},
 	}
 
-	cg := func(f string) string { return filepath.Join(m.cgroupBase, jobdir, f) }
+	cg := func(f string) string {
+		return filepath.Join(m.cgroupBase, jobdir, f)
+	}
 
 	memUsage, err := m.readFile(cg("memory.current"))
 	if err == nil {
@@ -208,8 +210,8 @@ func (m *SlurmCgroupCollector) ReadJobData(jobdir string) (SlurmJobData, error)
 			}
 		}
 		if usageUsec > 0 {
-			jobdata.CpuUsageUser = (userUsec * 100 / usageUsec)
+			jobdata.CpuUsageUser = (userUsec * 100.0 / usageUsec)
-			jobdata.CpuUsageSys = (systemUsec * 100 / usageUsec)
+			jobdata.CpuUsageSys = (systemUsec * 100.0 / usageUsec)
 		}
 	}
 
@@ -252,12 +254,18 @@ func (m *SlurmCgroupCollector) Read(interval time.Duration, output chan lp.CCMes
 			for _, cpu := range jobdata.CpuSet {
 				coreTags := map[string]string{
 					"type":    "hwthread",
-					"type-id": fmt.Sprintf("%d", cpu),
+					"type-id": strconv.Itoa(cpu),
 				}
 
 				if coreCount > 0 && !m.isExcluded("job_mem_used") {
 					memPerCore := jobdata.MemoryUsage / coreCount
-					if y, err := lp.NewMessage("job_mem_used", coreTags, m.meta, map[string]interface{}{"value": memPerCore}, timestamp); err == nil {
+					if y, err := lp.NewMessage(
+						"job_mem_used",
+						coreTags,
+						m.meta,
+						map[string]any{
+							"value": memPerCore},
+						timestamp); err == nil {
 						y.AddMeta("unit", "Bytes")
 						output <- y
 					}
@@ -265,7 +273,13 @@ func (m *SlurmCgroupCollector) Read(interval time.Duration, output chan lp.CCMes
 
 				if coreCount > 0 && !m.isExcluded("job_max_mem_used") {
 					maxMemPerCore := jobdata.MaxMemoryUsage / coreCount
-					if y, err := lp.NewMessage("job_max_mem_used", coreTags, m.meta, map[string]interface{}{"value": maxMemPerCore}, timestamp); err == nil {
+					if y, err := lp.NewMessage(
+						"job_max_mem_used",
+						coreTags,
+						m.meta,
+						map[string]any{
+							"value": maxMemPerCore},
+						timestamp); err == nil {
 						y.AddMeta("unit", "Bytes")
 						output <- y
 					}
@@ -273,7 +287,13 @@ func (m *SlurmCgroupCollector) Read(interval time.Duration, output chan lp.CCMes
 
 				if coreCount > 0 && !m.isExcluded("job_mem_limit") {
 					limitPerCore := jobdata.LimitMemoryUsage / coreCount
-					if y, err := lp.NewMessage("job_mem_limit", coreTags, m.meta, map[string]interface{}{"value": limitPerCore}, timestamp); err == nil {
+					if y, err := lp.NewMessage(
+						"job_mem_limit",
+						coreTags,
+						m.meta,
+						map[string]any{
+							"value": limitPerCore},
+						timestamp); err == nil {
 						y.AddMeta("unit", "Bytes")
 						output <- y
 					}
@@ -281,7 +301,13 @@ func (m *SlurmCgroupCollector) Read(interval time.Duration, output chan lp.CCMes
 
 				if coreCount > 0 && !m.isExcluded("job_user_cpu") {
 					cpuUserPerCore := jobdata.CpuUsageUser / coreCount
-					if y, err := lp.NewMessage("job_user_cpu", coreTags, m.meta, map[string]interface{}{"value": cpuUserPerCore}, timestamp); err == nil {
+					if y, err := lp.NewMessage(
+						"job_user_cpu",
+						coreTags,
+						m.meta,
+						map[string]any{
+							"value": cpuUserPerCore},
+						timestamp); err == nil {
 						y.AddMeta("unit", "%")
 						output <- y
 					}
@@ -289,7 +315,13 @@ func (m *SlurmCgroupCollector) Read(interval time.Duration, output chan lp.CCMes
 
 				if coreCount > 0 && !m.isExcluded("job_sys_cpu") {
 					cpuSysPerCore := jobdata.CpuUsageSys / coreCount
-					if y, err := lp.NewMessage("job_sys_cpu", coreTags, m.meta, map[string]interface{}{"value": cpuSysPerCore}, timestamp); err == nil {
+					if y, err := lp.NewMessage(
+						"job_sys_cpu",
+						coreTags,
+						m.meta,
+						map[string]any{
+							"value": cpuSysPerCore},
+						timestamp); err == nil {
 						y.AddMeta("unit", "%")
 						output <- y
 					}
@@ -304,39 +336,57 @@ func (m *SlurmCgroupCollector) Read(interval time.Duration, output chan lp.CCMes
 		if !m.cpuUsed[cpu] {
 			coreTags := map[string]string{
 				"type":    "hwthread",
-				"type-id": fmt.Sprintf("%d", cpu),
+				"type-id": strconv.Itoa(cpu),
 			}
 
 			if !m.isExcluded("job_mem_used") {
-				if y, err := lp.NewMessage("job_mem_used", coreTags, m.meta, map[string]interface{}{"value": 0}, timestamp); err == nil {
+				if y, err := lp.NewMessage(
+					"job_mem_used",
+					coreTags,
+					m.meta,
+					map[string]any{
+						"value": 0},
+					timestamp); err == nil {
 					y.AddMeta("unit", "Bytes")
 					output <- y
 				}
 			}
 
 			if !m.isExcluded("job_max_mem_used") {
-				if y, err := lp.NewMessage("job_max_mem_used", coreTags, m.meta, map[string]interface{}{"value": 0}, timestamp); err == nil {
+				if y, err := lp.NewMessage(
+					"job_max_mem_used",
+					coreTags,
+					m.meta,
+					map[string]any{
+						"value": 0},
+					timestamp); err == nil {
 					y.AddMeta("unit", "Bytes")
 					output <- y
 				}
 			}
 
 			if !m.isExcluded("job_mem_limit") {
-				if y, err := lp.NewMessage("job_mem_limit", coreTags, m.meta, map[string]interface{}{"value": 0}, timestamp); err == nil {
+				if y, err := lp.NewMessage(
+					"job_mem_limit",
+					coreTags,
+					m.meta,
+					map[string]any{
+						"value": 0},
+					timestamp); err == nil {
 					y.AddMeta("unit", "Bytes")
 					output <- y
 				}
 			}
 
 			if !m.isExcluded("job_user_cpu") {
-				if y, err := lp.NewMessage("job_user_cpu", coreTags, m.meta, map[string]interface{}{"value": 0}, timestamp); err == nil {
+				if y, err := lp.NewMessage("job_user_cpu", coreTags, m.meta, map[string]any{"value": 0}, timestamp); err == nil {
 					y.AddMeta("unit", "%")
 					output <- y
 				}
 			}
 
 			if !m.isExcluded("job_sys_cpu") {
-				if y, err := lp.NewMessage("job_sys_cpu", coreTags, m.meta, map[string]interface{}{"value": 0}, timestamp); err == nil {
+				if y, err := lp.NewMessage("job_sys_cpu", coreTags, m.meta, map[string]any{"value": 0}, timestamp); err == nil {
 					y.AddMeta("unit", "%")
 					output <- y
 				}

collectors/tempMetric.go

@@ -64,7 +64,7 @@ func (m *TempCollector) Init(config json.RawMessage) error {
 	if len(config) > 0 {
 		err := json.Unmarshal(config, &m.config)
 		if err != nil {
-			return err
+			return fmt.Errorf("%s Init(): failed to unmarshal JSON config: %w", m.name, err)
 		}
 	}
 
@@ -80,10 +80,10 @@ func (m *TempCollector) Init(config json.RawMessage) error {
 	globPattern := filepath.Join("/sys/class/hwmon", "*", "temp*_input")
 	inputFiles, err := filepath.Glob(globPattern)
 	if err != nil {
-		return fmt.Errorf("unable to glob files with pattern '%s': %v", globPattern, err)
+		return fmt.Errorf("%s Init(): unable to glob files with pattern '%s': %w", m.name, globPattern, err)
 	}
 	if inputFiles == nil {
-		return fmt.Errorf("unable to find any files with pattern '%s'", globPattern)
+		return fmt.Errorf("%s Init(): unable to find any files with pattern '%s'", m.name, globPattern)
 	}
 
 	// Get sensor name for each temperature sensor file
@@ -172,7 +172,7 @@ func (m *TempCollector) Init(config json.RawMessage) error {
 
 	// Empty sensors map
 	if len(m.sensors) == 0 {
-		return fmt.Errorf("no temperature sensors found")
+		return fmt.Errorf("%s Init(): no temperature sensors found", m.name)
 	}
 
 	// Finished initialization
@@ -203,7 +203,7 @@ func (m *TempCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 			sensor.metricName,
 			sensor.tags,
 			m.meta,
-			map[string]interface{}{"value": x},
+			map[string]any{"value": x},
 			time.Now(),
 		)
 		if err == nil {
@@ -216,7 +216,7 @@ func (m *TempCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 				sensor.maxTempName,
 				sensor.tags,
 				m.meta,
-				map[string]interface{}{"value": sensor.maxTemp},
+				map[string]any{"value": sensor.maxTemp},
 				time.Now(),
 			)
 			if err == nil {
@@ -230,7 +230,7 @@ func (m *TempCollector) Read(interval time.Duration, output chan lp.CCMessage) {
 				sensor.critTempName,
 				sensor.tags,
 				m.meta,
-				map[string]interface{}{"value": sensor.critTemp},
+				map[string]any{"value": sensor.critTemp},
 				time.Now(),
 			)
 			if err == nil {

collectors/topprocsMetric.go

@@ -81,7 +81,13 @@ func (m *TopProcsCollector) Read(interval time.Duration, output chan lp.CCMessag
 	lines := strings.Split(string(stdout), "\n")
 	for i := 1; i < m.config.Num_procs+1; i++ {
 		name := fmt.Sprintf("topproc%d", i)
-		y, err := lp.NewMessage(name, m.tags, m.meta, map[string]interface{}{"value": string(lines[i])}, time.Now())
+		y, err := lp.NewMessage(
+			name,
+			m.tags,
+			m.meta,
+			map[string]any{
+				"value": lines[i]},
+			time.Now())
 		if err == nil {
 			output <- y
 		}

go.mod

@@ -1,17 +1,17 @@
 module github.com/ClusterCockpit/cc-metric-collector
 
-go 1.24.0
+go 1.25.0
 
 require (
-	github.com/ClusterCockpit/cc-lib/v2 v2.1.0
+	github.com/ClusterCockpit/cc-lib/v2 v2.4.0
 	github.com/ClusterCockpit/go-rocm-smi v0.3.0
 	github.com/NVIDIA/go-nvml v0.13.0-1
 	github.com/PaesslerAG/gval v1.2.4
 	github.com/fsnotify/fsnotify v1.9.0
-	github.com/influxdata/line-protocol v0.0.0-20210922203350-b1ad95c89adf
+	github.com/influxdata/line-protocol/v2 v2.2.1
 	github.com/tklauser/go-sysconf v0.3.16
 	golang.design/x/thread v0.0.0-20210122121316-335e9adffdf1
-	golang.org/x/sys v0.40.0
+	golang.org/x/sys v0.41.0
 )
 
 require (
@@ -22,11 +22,11 @@ require (
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/gorilla/mux v1.8.1 // indirect
 	github.com/influxdata/influxdb-client-go/v2 v2.14.0 // indirect
-	github.com/influxdata/line-protocol/v2 v2.2.1 // indirect
+	github.com/influxdata/line-protocol v0.0.0-20210922203350-b1ad95c89adf // indirect
-	github.com/klauspost/compress v1.18.2 // indirect
+	github.com/klauspost/compress v1.18.4 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/nats-io/nats.go v1.48.0 // indirect
-	github.com/nats-io/nkeys v0.4.12 // indirect
+	github.com/nats-io/nkeys v0.4.15 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
 	github.com/oapi-codegen/runtime v1.1.2 // indirect
 	github.com/prometheus/client_golang v1.23.2 // indirect
@@ -38,8 +38,8 @@ require (
 	github.com/stmcginnis/gofish v0.20.0 // indirect
 	github.com/tklauser/numcpus v0.11.0 // indirect
 	go.yaml.in/yaml/v2 v2.4.3 // indirect
-	golang.org/x/crypto v0.47.0 // indirect
+	golang.org/x/crypto v0.48.0 // indirect
-	golang.org/x/exp v0.0.0-20260112195511-716be5621a96 // indirect
+	golang.org/x/exp v0.0.0-20260212183809-81e46e3db34a // indirect
-	golang.org/x/net v0.49.0 // indirect
+	golang.org/x/net v0.50.0 // indirect
 	google.golang.org/protobuf v1.36.11 // indirect
 )

go.sum

@@ -1,5 +1,7 @@
-github.com/ClusterCockpit/cc-lib/v2 v2.1.0 h1:B6l6h0IjfEuY9DU6aVM3fSsj24lQ1eudXK9QTKmJjqg=
+github.com/ClusterCockpit/cc-lib/v2 v2.2.1 h1:iCVas+Jc61zFH5S2VG3H1sc7tsn+U4lOJwUYjYZEims=
-github.com/ClusterCockpit/cc-lib/v2 v2.1.0/go.mod h1:JuxMAuEOaLLNEnnL9U3ejha8kMvsSatLdKPZEgJw6iw=
+github.com/ClusterCockpit/cc-lib/v2 v2.2.1/go.mod h1:JuxMAuEOaLLNEnnL9U3ejha8kMvsSatLdKPZEgJw6iw=
+github.com/ClusterCockpit/cc-lib/v2 v2.4.0 h1:OnZlvqSatg7yCQ2NtSR7AddpUVSiuSMZ8scF1a7nfOk=
+github.com/ClusterCockpit/cc-lib/v2 v2.4.0/go.mod h1:JuxMAuEOaLLNEnnL9U3ejha8kMvsSatLdKPZEgJw6iw=
 github.com/ClusterCockpit/go-rocm-smi v0.3.0 h1:1qZnSpG7/NyLtc7AjqnUL9Jb8xtqG1nMVgp69rJfaR8=
 github.com/ClusterCockpit/go-rocm-smi v0.3.0/go.mod h1:+I3UMeX3OlizXDf1WpGD43W4KGZZGVSGmny6rTeOnWA=
 github.com/NVIDIA/go-nvml v0.11.6-0/go.mod h1:hy7HYeQy335x6nEss0Ne3PYqleRa6Ct+VKD9RQ4nyFs=
@@ -55,6 +57,8 @@ github.com/influxdata/line-protocol/v2 v2.2.1/go.mod h1:DmB3Cnh+3oxmG6LOBIxce4oa
 github.com/juju/gnuflag v0.0.0-20171113085948-2ce1bb71843d/go.mod h1:2PavIy+JPciBPrBUjwbNvtwB6RQlve+hkpll6QSNmOE=
 github.com/klauspost/compress v1.18.2 h1:iiPHWW0YrcFgpBYhsA6D1+fqHssJscY/Tm/y2Uqnapk=
 github.com/klauspost/compress v1.18.2/go.mod h1:R0h/fSBs8DE4ENlcrlib3PsXS61voFxhIs2DeRhCvJ4=
+github.com/klauspost/compress v1.18.4 h1:RPhnKRAQ4Fh8zU2FY/6ZFDwTVTxgJ/EMydqSTzE9a2c=
+github.com/klauspost/compress v1.18.4/go.mod h1:R0h/fSBs8DE4ENlcrlib3PsXS61voFxhIs2DeRhCvJ4=
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
@@ -76,6 +80,8 @@ github.com/nats-io/nats.go v1.48.0 h1:pSFyXApG+yWU/TgbKCjmm5K4wrHu86231/w84qRVR+
 github.com/nats-io/nats.go v1.48.0/go.mod h1:iRWIPokVIFbVijxuMQq4y9ttaBTMe0SFdlZfMDd+33g=
 github.com/nats-io/nkeys v0.4.12 h1:nssm7JKOG9/x4J8II47VWCL1Ds29avyiQDRn0ckMvDc=
 github.com/nats-io/nkeys v0.4.12/go.mod h1:MT59A1HYcjIcyQDJStTfaOY6vhy9XTUjOFo+SVsvpBg=
+github.com/nats-io/nkeys v0.4.15 h1:JACV5jRVO9V856KOapQ7x+EY8Jo3qw1vJt/9Jpwzkk4=
+github.com/nats-io/nkeys v0.4.15/go.mod h1:CpMchTXC9fxA5zrMo4KpySxNjiDVvr8ANOSZdiNfUrs=
 github.com/nats-io/nuid v1.0.1 h1:5iA8DT8V7q8WK2EScv2padNa/rTESc1KdnPw4TC2paw=
 github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
 github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
@@ -117,13 +123,19 @@ golang.design/x/thread v0.0.0-20210122121316-335e9adffdf1 h1:P7S/GeHBAFEZIYp0ePP
 golang.design/x/thread v0.0.0-20210122121316-335e9adffdf1/go.mod h1:9CWpnTUmlQkfdpdutA1nNf4iE5lAVt3QZOu0Z6hahBE=
 golang.org/x/crypto v0.47.0 h1:V6e3FRj+n4dbpw86FJ8Fv7XVOql7TEwpHapKoMJ/GO8=
 golang.org/x/crypto v0.47.0/go.mod h1:ff3Y9VzzKbwSSEzWqJsJVBnWmRwRSHt/6Op5n9bQc4A=
+golang.org/x/crypto v0.48.0 h1:/VRzVqiRSggnhY7gNRxPauEQ5Drw9haKdM0jqfcCFts=
+golang.org/x/crypto v0.48.0/go.mod h1:r0kV5h3qnFPlQnBSrULhlsRfryS2pmewsg+XfMgkVos=
 golang.org/x/exp v0.0.0-20260112195511-716be5621a96 h1:Z/6YuSHTLOHfNFdb8zVZomZr7cqNgTJvA8+Qz75D8gU=
 golang.org/x/exp v0.0.0-20260112195511-716be5621a96/go.mod h1:nzimsREAkjBCIEFtHiYkrJyT+2uy9YZJB7H1k68CXZU=
+golang.org/x/exp v0.0.0-20260212183809-81e46e3db34a h1:ovFr6Z0MNmU7nH8VaX5xqw+05ST2uO1exVfZPVqRC5o=
+golang.org/x/exp v0.0.0-20260212183809-81e46e3db34a/go.mod h1:K79w1Vqn7PoiZn+TkNpx3BUWUQksGO3JcVX6qIjytmA=
 golang.org/x/net v0.49.0 h1:eeHFmOGUTtaaPSGNmjBKpbng9MulQsJURQUAfUwY++o=
 golang.org/x/net v0.49.0/go.mod h1:/ysNB2EvaqvesRkuLAyjI1ycPZlQHM3q01F02UY/MV8=
+golang.org/x/net v0.50.0 h1:ucWh9eiCGyDR3vtzso0WMQinm2Dnt8cFMuQa9K33J60=
+golang.org/x/net v0.50.0/go.mod h1:UgoSli3F/pBgdJBHCTc+tp3gmrU4XswgGRgtnwWTfyM=
 golang.org/x/sys v0.0.0-20210122093101-04d7465088b8/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.40.0 h1:DBZZqJ2Rkml6QMQsZywtnjnnGvHza6BTfYFWY9kjEWQ=
+golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
-golang.org/x/sys v0.40.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
 golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
 golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

internal/metricAggregator/metricAggregator.go

@@ -13,6 +13,7 @@ import (
 	"maps"
 	"math"
 	"os"
+	"slices"
 	"strings"
 	"sync"
 	"time"
@@ -37,7 +38,7 @@ type MetricAggregatorIntervalConfig struct {
 
 type metricAggregator struct {
 	functions []*MetricAggregatorIntervalConfig
-	constants map[string]interface{}
+	constants map[string]any
 	language  gval.Language
 	output    chan lp.CCMessage
 }
@@ -85,7 +86,7 @@ var evaluables = struct {
 func (c *metricAggregator) Init(output chan lp.CCMessage) error {
 	c.output = output
 	c.functions = make([]*MetricAggregatorIntervalConfig, 0)
-	c.constants = make(map[string]interface{})
+	c.constants = make(map[string]any)
 
 	// add constants like hostname, numSockets, ... to constants list
 	// Set hostname
@@ -121,7 +122,7 @@ func (c *metricAggregator) Init(output chan lp.CCMessage) error {
 }
 
 func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics []lp.CCMessage) {
-	vars := make(map[string]interface{})
+	vars := make(map[string]any)
 	maps.Copy(vars, c.constants)
 	vars["starttime"] = starttime
 	vars["endtime"] = endtime
@@ -136,7 +137,6 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 		matches := make([]lp.CCMessage, 0)
 		for _, m := range metrics {
 			vars["metric"] = m
-			//value, err := gval.Evaluate(f.Condition, vars, c.language)
 			value, err := f.gvalCond.EvalBool(context.Background(), vars)
 			if err != nil {
 				cclog.ComponentError("MetricCache", "COLLECT", f.Name, "COND", f.Condition, ":", err.Error())
@@ -170,22 +170,22 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 		// Check, that only values of one type were collected
 		countValueTypes := 0
 		if len(valuesFloat64) > 0 {
-			countValueTypes += 1
+			countValueTypes++
 		}
 		if len(valuesFloat32) > 0 {
-			countValueTypes += 1
+			countValueTypes++
 		}
 		if len(valuesInt) > 0 {
-			countValueTypes += 1
+			countValueTypes++
 		}
 		if len(valuesInt32) > 0 {
-			countValueTypes += 1
+			countValueTypes++
 		}
 		if len(valuesInt64) > 0 {
-			countValueTypes += 1
+			countValueTypes++
 		}
 		if len(valuesBool) > 0 {
-			countValueTypes += 1
+			countValueTypes++
 		}
 		if countValueTypes > 1 {
 			cclog.ComponentError("MetricCache", "Collected values of different types")
@@ -262,15 +262,15 @@ func (c *metricAggregator) Eval(starttime time.Time, endtime time.Time, metrics
 			var m lp.CCMessage
 			switch t := value.(type) {
 			case float64:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]any{"value": t}, starttime)
 			case float32:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]any{"value": t}, starttime)
 			case int:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]any{"value": t}, starttime)
 			case int64:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]any{"value": t}, starttime)
 			case string:
-				m, err = lp.NewMessage(f.Name, tags, meta, map[string]interface{}{"value": t}, starttime)
+				m, err = lp.NewMessage(f.Name, tags, meta, map[string]any{"value": t}, starttime)
 			default:
 				cclog.ComponentError("MetricCache", "Gval returned invalid type", t, "skipping metric", f.Name)
 			}
@@ -328,18 +328,21 @@ func (c *metricAggregator) AddAggregation(name, function, condition string, tags
 }
 
 func (c *metricAggregator) DeleteAggregation(name string) error {
-	for i, agg := range c.functions {
+	i := slices.IndexFunc(
-		if agg.Name == name {
+		c.functions,
+		func(agg *MetricAggregatorIntervalConfig) bool {
+			return agg.Name == name
+		})
+	if i == -1 {
+		return fmt.Errorf("no aggregation for metric name %s", name)
+	}
 	copy(c.functions[i:], c.functions[i+1:])
 	c.functions[len(c.functions)-1] = nil
 	c.functions = c.functions[:len(c.functions)-1]
 	return nil
-		}
-	}
-	return fmt.Errorf("no aggregation for metric name %s", name)
 }
 
-func (c *metricAggregator) AddConstant(name string, value interface{}) {
+func (c *metricAggregator) AddConstant(name string, value any) {
 	c.constants[name] = value
 }
 
@@ -347,11 +350,11 @@ func (c *metricAggregator) DelConstant(name string) {
 	delete(c.constants, name)
 }
 
-func (c *metricAggregator) AddFunction(name string, function func(args ...interface{}) (interface{}, error)) {
+func (c *metricAggregator) AddFunction(name string, function func(args ...any) (any, error)) {
 	c.language = gval.NewLanguage(c.language, gval.Function(name, function))
 }
 
-func EvalBoolCondition(condition string, params map[string]interface{}) (bool, error) {
+func EvalBoolCondition(condition string, params map[string]any) (bool, error) {
 	evaluables.mutex.Lock()
 	evaluable, ok := evaluables.mapping[condition]
 	evaluables.mutex.Unlock()

internal/metricAggregator/metricAggregatorFunctions.go

@@ -12,6 +12,7 @@ import (
 	"fmt"
 	"regexp"
 	"slices"
+	"strconv"
 	"strings"
 
 	topo "github.com/ClusterCockpit/cc-metric-collector/pkg/ccTopology"
@@ -33,7 +34,7 @@ func sumAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error
 }
 
 // Sum up values
-func sumfunc(args interface{}) (interface{}, error) {
+func sumfunc(args any) (any, error) {
 
 	var err error
 	switch values := args.(type) {
@@ -62,7 +63,7 @@ func minAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error
 }
 
 // Get the minimum value
-func minfunc(args interface{}) (interface{}, error) {
+func minfunc(args any) (any, error) {
 	switch values := args.(type) {
 	case []float64:
 		return minAnyType(values)
@@ -83,12 +84,12 @@ func avgAnyType[T float64 | float32 | int | int32 | int64](values []T) (float64,
 	if len(values) == 0 {
 		return 0.0, errors.New("average function requires at least one argument")
 	}
-	sum, err := sumAnyType[T](values)
+	sum, err := sumAnyType(values)
 	return float64(sum) / float64(len(values)), err
 }
 
 // Get the average or mean value
-func avgfunc(args interface{}) (interface{}, error) {
+func avgfunc(args any) (any, error) {
 	switch values := args.(type) {
 	case []float64:
 		return avgAnyType(values)
@@ -113,7 +114,7 @@ func maxAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, error
 }
 
 // Get the maximum value
-func maxfunc(args interface{}) (interface{}, error) {
+func maxfunc(args any) (any, error) {
 	switch values := args.(type) {
 	case []float64:
 		return maxAnyType(values)
@@ -145,7 +146,7 @@ func medianAnyType[T float64 | float32 | int | int32 | int64](values []T) (T, er
 }
 
 // Get the median value
-func medianfunc(args interface{}) (interface{}, error) {
+func medianfunc(args any) (any, error) {
 	switch values := args.(type) {
 	case []float64:
 		return medianAnyType(values)
@@ -166,7 +167,7 @@ func medianfunc(args interface{}) (interface{}, error) {
  * Get number of values in list. Returns always an int
  */
 
-func lenfunc(args interface{}) (interface{}, error) {
+func lenfunc(args any) (any, error) {
 	var err error = nil
 	length := 0
 	switch values := args.(type) {
@@ -180,13 +181,7 @@ func lenfunc(args interface{}) (interface{}, error) {
 		length = len(values)
 	case []int32:
 		length = len(values)
-	case float64:
+	case float64, float32, int, int64:
-		err = errors.New("function 'len' can only be applied on arrays and strings")
-	case float32:
-		err = errors.New("function 'len' can only be applied on arrays and strings")
-	case int:
-		err = errors.New("function 'len' can only be applied on arrays and strings")
-	case int64:
 		err = errors.New("function 'len' can only be applied on arrays and strings")
 	case string:
 		length = len(values)
@@ -196,13 +191,13 @@ func lenfunc(args interface{}) (interface{}, error) {
 
 /*
  * Check if a values is in a list
- * In constrast to most of the other functions, this one is an infix operator for
+ * In contrast to most of the other functions, this one is an infix operator for
  * - substring matching: `"abc" in "abcdef"` -> true
  * - substring matching with int casting: `3 in "abd3"` -> true
  * - search for an int in an int list: `3 in getCpuList()` -> true (if you have more than 4 CPU hardware threads)
  */
 
-func infunc(a interface{}, b interface{}) (interface{}, error) {
+func infunc(a any, b any) (any, error) {
 	switch match := a.(type) {
 	case string:
 		switch total := b.(type) {
@@ -212,13 +207,9 @@ func infunc(a interface{}, b interface{}) (interface{}, error) {
 	case int:
 		switch total := b.(type) {
 		case []int:
-			for _, x := range total {
+			return slices.Contains(total, match), nil
-				if x == match {
-					return true, nil
-				}
-			}
 		case string:
-			smatch := fmt.Sprintf("%d", match)
+			smatch := strconv.Itoa(match)
 			return strings.Contains(total, smatch), nil
 		}
 
@@ -232,7 +223,7 @@ func infunc(a interface{}, b interface{}) (interface{}, error) {
  * format keys \d = %d, \w = %d, ... Not sure how to fix this
  */
 
-func matchfunc(args ...interface{}) (interface{}, error) {
+func matchfunc(args ...any) (any, error) {
 	switch match := args[0].(type) {
 	case string:
 		switch total := args[1].(type) {
@@ -254,7 +245,7 @@ func matchfunc(args ...interface{}) (interface{}, error) {
  */
 
 // for a given cpuid, it returns the core id
-func getCpuCoreFunc(args interface{}) (interface{}, error) {
+func getCpuCoreFunc(args any) (any, error) {
 	switch cpuid := args.(type) {
 	case int:
 		return topo.GetHwthreadCore(cpuid), nil
@@ -263,7 +254,7 @@ func getCpuCoreFunc(args interface{}) (interface{}, error) {
 }
 
 // for a given cpuid, it returns the socket id
-func getCpuSocketFunc(args interface{}) (interface{}, error) {
+func getCpuSocketFunc(args any) (any, error) {
 	switch cpuid := args.(type) {
 	case int:
 		return topo.GetHwthreadSocket(cpuid), nil
@@ -272,7 +263,7 @@ func getCpuSocketFunc(args interface{}) (interface{}, error) {
 }
 
 // for a given cpuid, it returns the id of the NUMA node
-func getCpuNumaDomainFunc(args interface{}) (interface{}, error) {
+func getCpuNumaDomainFunc(args any) (any, error) {
 	switch cpuid := args.(type) {
 	case int:
 		return topo.GetHwthreadNumaDomain(cpuid), nil
@@ -281,7 +272,7 @@ func getCpuNumaDomainFunc(args interface{}) (interface{}, error) {
 }
 
 // for a given cpuid, it returns the id of the CPU die
-func getCpuDieFunc(args interface{}) (interface{}, error) {
+func getCpuDieFunc(args any) (any, error) {
 	switch cpuid := args.(type) {
 	case int:
 		return topo.GetHwthreadDie(cpuid), nil
@@ -290,7 +281,7 @@ 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 any) (any, error) {
 	cpulist := make([]int, 0)
 	switch in := args.(type) {
 	case int:
@@ -304,7 +295,7 @@ 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 any) (any, error) {
 	cpulist := make([]int, 0)
 	switch in := args.(type) {
 	case int:
@@ -318,7 +309,7 @@ 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 any) (any, error) {
 	cpulist := make([]int, 0)
 	switch in := args.(type) {
 	case int:
@@ -332,7 +323,7 @@ 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 any) (any, error) {
 	cpulist := make([]int, 0)
 	switch in := args.(type) {
 	case int:
@@ -346,14 +337,14 @@ func getCpuListOfDieFunc(args interface{}) (interface{}, error) {
 }
 
 // wrapper function to get a list of all cpuids of the node
-func getCpuListOfNode() (interface{}, error) {
+func getCpuListOfNode() (any, error) {
 	return topo.HwthreadList(), nil
 }
 
 // helper function to get the cpuid list for a CCMetric type tag set (type and type-id)
 // since there is no access to the metric data in the function, is should be called like
 // `getCpuListOfType()`
-func getCpuListOfType(args ...interface{}) (interface{}, error) {
+func getCpuListOfType(args ...any) (any, error) {
 	cpulist := make([]int, 0)
 	switch typ := args[0].(type) {
 	case string:

internal/metricRouter/metricCache.go

@@ -102,9 +102,7 @@ func (c *metricCache) Start() {
 		return oldPeriod
 	}
 
-	c.wg.Add(1)
+	c.wg.Go(func() {
-	go func() {
-		defer c.wg.Done()
 		for {
 			select {
 			case <-c.done:
@@ -124,7 +122,7 @@ func (c *metricCache) Start() {
 				}
 			}
 		}
-	}()
+	})
 	cclog.ComponentDebug("MetricCache", "START")
 }
 
@@ -137,12 +135,12 @@ func (c *metricCache) Add(metric lp.CCMessage) {
 		p := c.intervals[c.curPeriod]
 		if p.numMetrics < p.sizeMetrics {
 			p.metrics[p.numMetrics] = metric
-			p.numMetrics = p.numMetrics + 1
+			p.numMetrics++
 			p.stopstamp = metric.Time()
 		} else {
 			p.metrics = append(p.metrics, metric)
-			p.numMetrics = p.numMetrics + 1
+			p.numMetrics++
-			p.sizeMetrics = p.sizeMetrics + 1
+			p.sizeMetrics++
 			p.stopstamp = metric.Time()
 		}
 		c.lock.Unlock()

internal/metricRouter/metricRouter.go

@@ -10,6 +10,7 @@ package metricRouter
 import (
 	"encoding/json"
 	"fmt"
+	"maps"
 	"os"
 	"strings"
 	"sync"
@@ -185,15 +186,11 @@ func (r *metricRouter) Init(ticker mct.MultiChanTicker, wg *sync.WaitGroup, rout
 		return fmt.Errorf("MessageProcessor AddAddTagsByCondition() failed: %w", err)
 	}
 
-	// r.config.dropMetrics = make(map[string]bool)
-	// for _, mname := range r.config.DropMetrics {
-	// 	r.config.dropMetrics[mname] = true
-	// }
 	return nil
 }
 
-func getParamMap(point lp.CCMessage) map[string]interface{} {
+func getParamMap(point lp.CCMessage) map[string]any {
-	params := make(map[string]interface{})
+	params := make(map[string]any)
 	params["metric"] = point
 	params["name"] = point.Name()
 	for key, value := range point.Tags() {
@@ -202,14 +199,12 @@ func getParamMap(point lp.CCMessage) map[string]interface{} {
 	for key, value := range point.Meta() {
 		params[key] = value
 	}
-	for key, value := range point.Fields() {
+	maps.Copy(params, point.Fields())
-		params[key] = value
-	}
 	params["timestamp"] = point.Time()
 	return params
 }
 
-// DoAddTags adds a tag when condition is fullfiled
+// DoAddTags adds a tag when condition is fulfilled
 func (r *metricRouter) DoAddTags(point lp.CCMessage) {
 	var conditionMatches bool
 	for _, m := range r.config.AddTags {
@@ -231,83 +226,6 @@ func (r *metricRouter) DoAddTags(point lp.CCMessage) {
 	}
 }
 
-// DoDelTags removes a tag when condition is fullfiled
-// func (r *metricRouter) DoDelTags(point lp.CCMessage) {
-// 	var conditionMatches bool
-// 	for _, m := range r.config.DelTags {
-// 		if m.Condition == "*" {
-// 			// Condition is always matched
-// 			conditionMatches = true
-// 		} else {
-// 			// Evaluate condition
-// 			var err error
-// 			conditionMatches, err = agg.EvalBoolCondition(m.Condition, getParamMap(point))
-// 			if err != nil {
-// 				cclog.ComponentError("MetricRouter", err.Error())
-// 				conditionMatches = false
-// 			}
-// 		}
-// 		if conditionMatches {
-// 			point.RemoveTag(m.Key)
-// 		}
-// 	}
-// }
-
-// Conditional test whether a metric should be dropped
-// func (r *metricRouter) dropMetric(point lp.CCMessage) bool {
-// 	// Simple drop check
-// 	if conditionMatches, ok := r.config.dropMetrics[point.Name()]; ok {
-// 		return conditionMatches
-// 	}
-
-// 	// Checking the dropping conditions
-// 	for _, m := range r.config.DropMetricsIf {
-// 		conditionMatches, err := agg.EvalBoolCondition(m, getParamMap(point))
-// 		if err != nil {
-// 			cclog.ComponentError("MetricRouter", err.Error())
-// 			conditionMatches = false
-// 		}
-// 		if conditionMatches {
-// 			return conditionMatches
-// 		}
-// 	}
-
-// 	// No dropping condition met
-// 	return false
-// }
-
-// func (r *metricRouter) prepareUnit(point lp.CCMessage) bool {
-// 	if r.config.NormalizeUnits {
-// 		if in_unit, ok := point.GetMeta("unit"); ok {
-// 			u := units.NewUnit(in_unit)
-// 			if u.Valid() {
-// 				point.AddMeta("unit", u.Short())
-// 			}
-// 		}
-// 	}
-// 	if newP, ok := r.config.ChangeUnitPrefix[point.Name()]; ok {
-
-// 		newPrefix := units.NewPrefix(newP)
-
-// 		if in_unit, ok := point.GetMeta("unit"); ok && newPrefix != units.InvalidPrefix {
-// 			u := units.NewUnit(in_unit)
-// 			if u.Valid() {
-// 				cclog.ComponentDebug("MetricRouter", "Change prefix to", newP, "for metric", point.Name())
-// 				conv, out_unit := units.GetUnitPrefixFactor(u, newPrefix)
-// 				if conv != nil && out_unit.Valid() {
-// 					if val, ok := point.GetField("value"); ok {
-// 						point.AddField("value", conv(val))
-// 						point.AddMeta("unit", out_unit.Short())
-// 					}
-// 				}
-// 			}
-
-// 		}
-// 	}
-
-// 	return true
-// }
-
 // Start starts the metric router
 func (r *metricRouter) Start() {
 	// start timer if configured
@@ -323,28 +241,7 @@ func (r *metricRouter) Start() {
 		cclog.ComponentDebug("MetricRouter", "DONE")
 	}
 
-	// Forward takes a received metric, adds or deletes tags
+	// Forward message received from collector channel
-	// and forwards it to the output channels
-	// forward := func(point lp.CCMessage) {
-	// 	cclog.ComponentDebug("MetricRouter", "FORWARD", point)
-	// 	r.DoAddTags(point)
-	// 	r.DoDelTags(point)
-	// 	name := point.Name()
-	// 	if new, ok := r.config.RenameMetrics[name]; ok {
-	// 		point.SetName(new)
-	// 		point.AddMeta("oldname", name)
-	// 		r.DoAddTags(point)
-	// 		r.DoDelTags(point)
-	// 	}
-
-	// 	r.prepareUnit(point)
-
-	// 	for _, o := range r.outputs {
-	// 		o <- point
-	// 	}
-	// }
-
-	// Foward message received from collector channel
 	coll_forward := func(p lp.CCMessage) {
 		// receive from metric collector
 		//p.AddTag(r.config.HostnameTagName, r.hostname)
@@ -357,11 +254,6 @@ func (r *metricRouter) Start() {
 				o <- m
 			}
 		}
-		// if !r.dropMetric(p) {
-		// 	for _, o := range r.outputs {
-		// 		o <- point
-		// 	}
-		// }
 		// even if the metric is dropped, it is stored in the cache for
 		// aggregations
 		if r.config.NumCacheIntervals > 0 {
@@ -381,9 +273,6 @@ func (r *metricRouter) Start() {
 				o <- m
 			}
 		}
-		// if !r.dropMetric(p) {
-		// 	forward(p)
-		// }
 	}
 
 	// Forward message received from cache channel
@@ -402,9 +291,7 @@ func (r *metricRouter) Start() {
 		r.cache.Start()
 	}
 
-	r.wg.Add(1)
+	r.wg.Go(func() {
-	go func() {
-		defer r.wg.Done()
 
 		for {
 			select {
@@ -435,7 +322,7 @@ func (r *metricRouter) Start() {
 				}
 			}
 		}
-	}()
+	})
 	cclog.ComponentDebug("MetricRouter", "STARTED")
 }
 

pkg/ccTopology/ccTopology.go

@@ -51,14 +51,13 @@ var cache struct {
 func fileToInt(path string) int {
 	buffer, err := os.ReadFile(path)
 	if err != nil {
-		log.Print(err)
+		cclogger.ComponentError("ccTopology", fmt.Sprintf("fileToInt(): Reading \"%s\": %v", path, err))
-		cclogger.ComponentError("ccTopology", "fileToInt", "Reading", path, ":", err.Error())
 		return -1
 	}
 	stringBuffer := strings.TrimSpace(string(buffer))
 	id, err := strconv.Atoi(stringBuffer)
 	if err != nil {
-		cclogger.ComponentError("ccTopology", "fileToInt", "Parsing", path, ":", stringBuffer, err.Error())
+		cclogger.ComponentError("ccTopology", fmt.Sprintf("fileToInt(): Parsing \"%s\": %v", stringBuffer, err))
 		return -1
 	}
 	return id
@@ -304,20 +303,19 @@ func GetTypeList(topology_type string) []int {
 }
 
 func GetTypeId(hwt HwthreadEntry, topology_type string) (int, error) {
-	var err error = nil
 	switch topology_type {
 	case "node":
-		return 0, err
+		return 0, nil
 	case "socket":
-		return hwt.Socket, err
+		return hwt.Socket, nil
 	case "die":
-		return hwt.Die, err
+		return hwt.Die, nil
 	case "memoryDomain":
-		return hwt.NumaDomain, err
+		return hwt.NumaDomain, nil
 	case "core":
-		return hwt.Core, err
+		return hwt.Core, nil
 	case "hwthread":
-		return hwt.CpuID, err
+		return hwt.CpuID, nil
 	}
 	return -1, fmt.Errorf("unknown topology type '%s'", topology_type)
 }

pkg/multiChanTicker/multiChanTicker.go

@@ -21,7 +21,7 @@ type multiChanTicker struct {
 
 type MultiChanTicker interface {
 	Init(duration time.Duration)
-	AddChannel(chan time.Time)
+	AddChannel(channel chan time.Time)
 	Close()
 }
 

scripts/cc-metric-collector.spec

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