cc-metric-collector/collectors/loadavgMetric.go
Thomas Gruber 200af84c54
Modularize the whole thing (#16)
* Use channels, add a metric router, split up configuration and use extended version of Influx line protocol internally

* Use central timer for collectors and router. Add expressions to router

* Add expression to router config

* Update entry points

* Start with README

* Update README for CCMetric

* Formatting

* Update README.md

* Add README for MultiChanTicker

* Add README for MultiChanTicker

* Update README.md

* Add README to metric router

* Update main README

* Remove SinkEntity type

* Update README for sinks

* Update go files

* Update README for receivers

* Update collectors README

* Update collectors README

* Use seperate page per collector

* Fix for tempstat page

* Add docs for customcmd collector

* Add docs for ipmistat collector

* Add docs for topprocs collector

* Update customCmdMetric.md

* Use seconds when calculating LIKWID metrics

* Add IB metrics ib_recv_pkts and ib_xmit_pkts

* Drop domain part of host name

* Updated to latest stable version of likwid

* Define source code dependencies in Makefile

* Add GPFS / IBM Spectrum Scale collector

* Add vet and staticcheck make targets

* Add vet and staticcheck make targets

* Avoid go vet warning:
struct field tag `json:"..., omitempty"` not compatible with reflect.StructTag.Get: suspicious space in struct tag value
struct field tag `json:"...", omitempty` not compatible with reflect.StructTag.Get: key:"value" pairs not separated by spaces

* Add sample collector to README.md

* Add CPU frequency collector

* Avoid staticcheck warning: redundant return statement

* Avoid staticcheck warning: unnecessary assignment to the blank identifier

* Simplified code

* Add CPUFreqCollectorCpuinfo
a metric collector to measure the current frequency of the CPUs
as obtained from /proc/cpuinfo
Only measure on the first hyperthread

* Add collector for NFS clients

* Move publication of metrics into Flush() for NatsSink

* Update GitHub actions

* Refactoring

* Avoid vet warning: Println arg list ends with redundant newline

* Avoid vet warning struct field commands has json tag but is not exported

* Avoid vet warning: return copies lock value.

* Corrected typo

* Refactoring

* Add go sources in internal/...

* Bad separator in Makefile

* Fix Infiniband collector

Co-authored-by: Holger Obermaier <40787752+ho-ob@users.noreply.github.com>
2022-01-25 15:37:43 +01:00

81 lines
1.9 KiB
Go

package collectors
import (
"encoding/json"
"io/ioutil"
"strconv"
"strings"
"time"
lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
)
const LOADAVGFILE = `/proc/loadavg`
type LoadavgCollectorConfig struct {
ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
}
type LoadavgCollector struct {
metricCollector
tags map[string]string
load_matches []string
proc_matches []string
config LoadavgCollectorConfig
}
func (m *LoadavgCollector) Init(config json.RawMessage) error {
m.name = "LoadavgCollector"
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": "LOAD"}
m.tags = map[string]string{"type": "node"}
m.load_matches = []string{"load_one", "load_five", "load_fifteen"}
m.proc_matches = []string{"proc_run", "proc_total"}
m.init = true
return nil
}
func (m *LoadavgCollector) Read(interval time.Duration, output chan lp.CCMetric) {
var skip bool
if !m.init {
return
}
buffer, err := ioutil.ReadFile(string(LOADAVGFILE))
if err != nil {
return
}
ls := strings.Split(string(buffer), ` `)
for i, name := range m.load_matches {
x, err := strconv.ParseFloat(ls[i], 64)
if err == nil {
_, skip = stringArrayContains(m.config.ExcludeMetrics, name)
y, err := lp.New(name, m.tags, m.meta, map[string]interface{}{"value": float64(x)}, time.Now())
if err == nil && !skip {
output <- y
}
}
}
lv := strings.Split(ls[3], `/`)
for i, name := range m.proc_matches {
x, err := strconv.ParseFloat(lv[i], 64)
if err == nil {
_, skip = stringArrayContains(m.config.ExcludeMetrics, name)
y, err := lp.New(name, m.tags, m.meta, map[string]interface{}{"value": float64(x)}, time.Now())
if err == nil && !skip {
output <- y
}
}
}
}
func (m *LoadavgCollector) Close() {
m.init = false
}