ClusterCockpit/cc-metric-collector
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Change storage format

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This commit is contained in:
Thomas Roehl
2021-10-04 15:23:43 +02:00
parent 8956ce7ad5
commit 558bbaba59
19 changed files with 874 additions and 283 deletions
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69
collectors/memstatMetric.go
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@@ -2,6 +2,8 @@ package collectors
import (
"errors"
"fmt"
lp "github.com/influxdata/line-protocol"
"io/ioutil"
"log"
"strconv"
@@ -13,15 +15,33 @@ const MEMSTATFILE = `/proc/meminfo`
type MemstatCollector struct {
MetricCollector
stats map[string]int64
tags map[string]string
matches map[string]string
}
func (m *MemstatCollector) Init() error {
m.name = "MemstatCollector"
m.stats = make(map[string]int64)
m.tags = map[string]string{"type": "node"}
m.matches = map[string]string{`MemTotal`: "mem_total",
"SwapTotal": "swap_total",
"SReclaimable": "mem_sreclaimable",
"Slab": "mem_slab",
"MemFree": "mem_free",
"Buffers": "mem_buffers",
"Cached": "mem_cached",
"MemAvailable": "mem_available",
"SwapFree": "swap_free"}
m.setup()
_, err := ioutil.ReadFile(string(MEMSTATFILE))
if err == nil {
m.init = true
}
return nil
}
func (m *MemstatCollector) Read(interval time.Duration) {
func (m *MemstatCollector) Read(interval time.Duration, out *[]lp.MutableMetric) {
buffer, err := ioutil.ReadFile(string(MEMSTATFILE))
if err != nil {
@@ -30,40 +50,53 @@ func (m *MemstatCollector) Read(interval time.Duration) {
}
ll := strings.Split(string(buffer), "\n")
memstats := make(map[string]int64)
for _, line := range ll {
ls := strings.Split(line, `:`)
if len(ls) > 1 {
lv := strings.Fields(ls[1])
memstats[ls[0]], err = strconv.ParseInt(lv[0], 0, 64)
m.stats[ls[0]], err = strconv.ParseInt(lv[0], 0, 64)
}
}
if _, exists := memstats[`MemTotal`]; !exists {
if _, exists := m.stats[`MemTotal`]; !exists {
err = errors.New("Parse error")
log.Print(err)
return
}
m.node["mem_total"] = float64(memstats[`MemTotal`]) * 1.0e-3
m.node["swap_total"] = float64(memstats[`SwapTotal`]) * 1.0e-3
m.node["mem_sreclaimable"] = float64(memstats[`SReclaimable`]) * 1.0e-3
m.node["mem_slab"] = float64(memstats[`Slab`]) * 1.0e-3
m.node["mem_free"] = float64(memstats[`MemFree`]) * 1.0e-3
m.node["mem_buffers"] = float64(memstats[`Buffers`]) * 1.0e-3
m.node["mem_cached"] = float64(memstats[`Cached`]) * 1.0e-3
m.node["mem_available"] = float64(memstats[`MemAvailable`]) * 1.0e-3
m.node["swap_free"] = float64(memstats[`SwapFree`]) * 1.0e-3
for match, name := range m.matches {
if _, exists := m.stats[match]; !exists {
err = errors.New(fmt.Sprintf("Parse error for %s : %s", match, name))
log.Print(err)
continue
}
y, err := lp.New(name, m.tags, map[string]interface{}{"value": int(float64(m.stats[match]) * 1.0e-3)}, time.Now())
if err == nil {
*out = append(*out, y)
}
}
memUsed := memstats[`MemTotal`] - (memstats[`MemFree`] + memstats[`Buffers`] + memstats[`Cached`])
m.node["mem_used"] = float64(memUsed) * 1.0e-3
// In linux-2.5.52 when Memshared was removed
if _, found := memstats[`MemShared`]; found {
m.node["mem_shared"] = float64(memstats[`MemShared`]) * 1.0e-3
if _, free := m.stats[`MemFree`]; free {
if _, buffers := m.stats[`Buffers`]; buffers {
if _, cached := m.stats[`Cached`]; cached {
memUsed := m.stats[`MemTotal`] - (m.stats[`MemFree`] + m.stats[`Buffers`] + m.stats[`Cached`])
y, err := lp.New("mem_used", m.tags, map[string]interface{}{"value": int(float64(memUsed) * 1.0e-3)}, time.Now())
if err == nil {
*out = append(*out, y)
}
}
}
}
if _, found := m.stats[`MemShared`]; found {
y, err := lp.New("mem_shared", m.tags, map[string]interface{}{"value": int(float64(m.stats[`MemShared`]) * 1.0e-3)}, time.Now())
if err == nil {
*out = append(*out, y)
}
}
}
func (m *MemstatCollector) Close() {
m.init = false
return
}