mirror of
https://github.com/ClusterCockpit/cc-metric-collector.git
synced 2024-09-20 07:27:25 +02:00
200af84c54
* 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>
116 lines
2.3 KiB
Go
116 lines
2.3 KiB
Go
package collectors
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import (
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"io/ioutil"
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lp "github.com/ClusterCockpit/cc-metric-collector/internal/ccMetric"
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// "log"
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"encoding/json"
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"errors"
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"strconv"
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"strings"
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"time"
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)
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const DISKSTATFILE = `/proc/diskstats`
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const DISKSTAT_SYSFSPATH = `/sys/block`
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type DiskstatCollectorConfig struct {
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ExcludeMetrics []string `json:"exclude_metrics,omitempty"`
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}
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type DiskstatCollector struct {
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metricCollector
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matches map[int]string
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config DiskstatCollectorConfig
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}
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func (m *DiskstatCollector) Init(config json.RawMessage) error {
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var err error
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m.name = "DiskstatCollector"
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m.meta = map[string]string{"source": m.name, "group": "Disk"}
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m.setup()
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if len(config) > 0 {
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err = json.Unmarshal(config, &m.config)
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if err != nil {
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return err
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}
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}
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// https://www.kernel.org/doc/html/latest/admin-guide/iostats.html
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matches := map[int]string{
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3: "reads",
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4: "reads_merged",
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5: "read_sectors",
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6: "read_ms",
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7: "writes",
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8: "writes_merged",
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9: "writes_sectors",
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10: "writes_ms",
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11: "ioops",
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12: "ioops_ms",
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13: "ioops_weighted_ms",
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14: "discards",
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15: "discards_merged",
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16: "discards_sectors",
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17: "discards_ms",
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18: "flushes",
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19: "flushes_ms",
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}
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m.matches = make(map[int]string)
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for k, v := range matches {
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_, skip := stringArrayContains(m.config.ExcludeMetrics, v)
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if !skip {
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m.matches[k] = v
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}
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}
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if len(m.matches) == 0 {
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return errors.New("No metrics to collect")
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}
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_, err = ioutil.ReadFile(string(DISKSTATFILE))
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if err == nil {
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m.init = true
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}
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return err
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}
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func (m *DiskstatCollector) Read(interval time.Duration, output chan lp.CCMetric) {
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var lines []string
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if !m.init {
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return
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}
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buffer, err := ioutil.ReadFile(string(DISKSTATFILE))
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if err != nil {
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return
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}
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lines = strings.Split(string(buffer), "\n")
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for _, line := range lines {
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if len(line) == 0 {
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continue
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}
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f := strings.Fields(line)
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if strings.Contains(f[2], "loop") {
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continue
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}
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tags := map[string]string{
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"device": f[2],
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"type": "node",
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}
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for idx, name := range m.matches {
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if idx < len(f) {
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x, err := strconv.ParseInt(f[idx], 0, 64)
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if err == nil {
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y, err := lp.New(name, tags, m.meta, map[string]interface{}{"value": int(x)}, time.Now())
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if err == nil {
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output <- y
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}
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}
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}
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}
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}
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}
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func (m *DiskstatCollector) Close() {
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m.init = false
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}
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