cc-metric-collector/collectors
2022-02-07 17:41:35 +01:00
..
collectorManager.go Split NfsCollector in Nfs3Collector and Nfs4Collector (#28) 2022-02-07 15:43:01 +01:00
cpufreqCpuinfoMetric.go Avoid int -> int64 conversions 2022-02-07 11:12:03 +01:00
cpufreqMetric.go Avoid int -> int64 conversions 2022-02-07 11:12:03 +01:00
cpustatMetric.go Modularize the whole thing (#16) 2022-01-25 15:37:43 +01:00
cpustatMetric.md Fix for documentation 2022-01-26 18:37:59 +01:00
customCmdMetric.go Modularize the whole thing (#16) 2022-01-25 15:37:43 +01:00
customCmdMetric.md Modularize the whole thing (#16) 2022-01-25 15:37:43 +01:00
diskstatMetric.go Modularize the whole thing (#16) 2022-01-25 15:37:43 +01:00
diskstatMetric.md Modularize the whole thing (#16) 2022-01-25 15:37:43 +01:00
gpfsMetric.go Add skip_filesystem configuration 2022-02-07 13:30:42 +01:00
gpfsMetric.md Add documentation for GPFS metric 2022-02-07 11:37:34 +01:00
infinibandMetric.go Fix initialization of InfinibandCollector 2022-02-07 15:43:57 +01:00
infinibandMetric.md Add markdown documentation for metric collector ibstat_perfquery 2022-02-07 09:46:19 +01:00
infinibandPerfQueryMetric.go Add markdown documentation for metric collector ibstat_perfquery 2022-02-07 09:46:19 +01:00
infinibandPerfQueryMetric.md Add markdown documentation for metric collector ibstat_perfquery 2022-02-07 09:46:19 +01:00
ipmiMetric.go Use LookPath in IpmiCollector 2022-02-07 15:44:29 +01:00
ipmiMetric.md Modularize the whole thing (#16) 2022-01-25 15:37:43 +01:00
likwidMetric.go Respect the publish option in the LikwidCollector 2022-02-07 17:41:35 +01:00
likwidMetric.md Add scope guidelines in LikwidCollector page 2022-02-02 16:46:35 +01:00
loadavgMetric.go Moved check which metric to skip to Init() 2022-02-04 19:22:42 +01:00
loadavgMetric.md Modularize the whole thing (#16) 2022-01-25 15:37:43 +01:00
lustreMetric.go Fix for LustreCollector. Check for root user 2022-02-07 13:27:35 +01:00
lustreMetric.md Modularize the whole thing (#16) 2022-01-25 15:37:43 +01:00
Makefile Updated to latest stable version of likwid 2022-01-19 15:55:48 +01:00
memstatMetric.go Avoid labels in collector manager loop 2022-01-26 15:54:49 +01:00
memstatMetric.md Modularize the whole thing (#16) 2022-01-25 15:37:43 +01:00
metricCollector.go Add documentation 2022-01-25 17:20:20 +01:00
netstatMetric.go Prefix metrics from NetstatCollector with 'net' 2022-02-04 12:39:59 +01:00
netstatMetric.md Modularize the whole thing (#16) 2022-01-25 15:37:43 +01:00
nfs3Metric.md Split NfsCollector in Nfs3Collector and Nfs4Collector (#28) 2022-02-07 15:43:01 +01:00
nfs4Metric.md Split NfsCollector in Nfs3Collector and Nfs4Collector (#28) 2022-02-07 15:43:01 +01:00
nfsMetric.go Split NfsCollector in Nfs3Collector and Nfs4Collector (#28) 2022-02-07 15:43:01 +01:00
numastatsMetric.go Switched to cclog.ComponentError() for error reporting in Read() 2022-02-04 14:42:53 +01:00
nvidiaMetric.go Prefix Nvidia metrics with 'nv_' 2022-01-26 18:45:23 +01:00
nvidiaMetric.md Prefix Nvidia metrics with 'nv_' 2022-01-26 18:45:23 +01:00
README.md Split NfsCollector in Nfs3Collector and Nfs4Collector (#28) 2022-02-07 15:43:01 +01:00
tempMetric.go Use ccLogger anywhere 2022-01-25 17:43:10 +01:00
tempMetric.md Modularize the whole thing (#16) 2022-01-25 15:37:43 +01:00
topprocsMetric.go Modularize the whole thing (#16) 2022-01-25 15:37:43 +01:00
topprocsMetric.md Modularize the whole thing (#16) 2022-01-25 15:37:43 +01:00

CCMetric collectors

This folder contains the collectors for the cc-metric-collector.

Configuration

{
    "collector_type" : {
        <collector specific configuration>
    }
}

In contrast to the configuration files for sinks and receivers, the collectors configuration is not a list but a set of dicts. This is required because we didn't manage to partially read the type before loading the remaining configuration. We are eager to change this to the same format.

Available collectors

Todos

  • Exclude devices for diskstat collector
  • Aggreate metrics to higher topology entity (sum hwthread metrics to socket metric, ...). Needs to be configurable

Contributing own collectors

A collector reads data from any source, parses it to metrics and submits these metrics to the metric-collector. A collector provides three function:

  • Name() string: Return the name of the collector
  • Init(config json.RawMessage) error: Initializes the collector using the given collector-specific config in JSON. Check if needed files/commands exists, ...
  • Initialized() bool: Check if a collector is successfully initialized
  • Read(duration time.Duration, output chan ccMetric.CCMetric): Read, parse and submit data to the output channel as CCMetric. If the collector has to measure anything for some duration, use the provided function argument duration.
  • Close(): Closes down the collector.

It is recommanded to call setup() in the Init() function.

Finally, the collector needs to be registered in the collectorManager.go. There is a list of collectors called AvailableCollectors which is a map (collector_type_string -> pointer to MetricCollector interface). Add a new entry with a descriptive name and the new collector.

Sample collector

package collectors

import (
    "encoding/json"
    "time"

    lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
)

// Struct for the collector-specific JSON config
type SampleCollectorConfig struct {
    ExcludeMetrics []string `json:"exclude_metrics"`
}

type SampleCollector struct {
    metricCollector
    config SampleCollectorConfig
}

func (m *SampleCollector) Init(config json.RawMessage) error {
    // Check if already initialized
    if m.init {
        return nil
    }

    m.name = "SampleCollector"
    m.setup()
    if len(config) > 0 {
        err := json.Unmarshal(config, &m.config)
        if err != nil {
            return err
        }
    }
    m.meta = map[string]string{"source": m.name, "group": "Sample"}

    m.init = true
    return nil
}

func (m *SampleCollector) Read(interval time.Duration, output chan lp.CCMetric) {
    if !m.init {
        return
    }
    // tags for the metric, if type != node use proper type and type-id
    tags := map[string]string{"type" : "node"}

    x, err := GetMetric()
    if err != nil {
        cclog.ComponentError(m.name, fmt.Sprintf("Read(): %v", err))
    }

    // Each metric has exactly one field: value !
    value := map[string]interface{}{"value": int64(x)}
    if y, err := lp.New("sample_metric", tags, m.meta, value, time.Now()); err == nil {
        output <- y
    }
}

func (m *SampleCollector) Close() {
    m.init = false
    return
}