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61 prometheus integration #66
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88233e5
Added prometheus integration and monitoring
avii778 e8ee411
Added prometheuss integration and monitoring
avii778 4c87de2
Fixed issues and added prometheus and grafana setup
avii778 8f1e33b
Merge branch 'main' into 61-prometheus-integration
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| package main | ||
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|
||
| import ( | ||
| "context" | ||
| "net/http" | ||
| "time" | ||
|
|
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| "github.com/prometheus/client_golang/prometheus" | ||
| "github.com/prometheus/client_golang/prometheus/promauto" | ||
| "github.com/prometheus/client_golang/prometheus/promhttp" | ||
| cpuinfo "github.com/shirou/gopsutil/v3/cpu" | ||
| diskinfo "github.com/shirou/gopsutil/v3/disk" | ||
| meminfo "github.com/shirou/gopsutil/v3/mem" | ||
| ) | ||
|
|
||
| func handle() { | ||
| http.Handle("/metrics", promhttp.Handler()) | ||
| http.ListenAndServe(":2112", nil) | ||
| } | ||
|
|
||
| // http metrics | ||
| var ( | ||
| httpInFlight = promauto.NewGauge(prometheus.GaugeOpts{ | ||
| Name: "http_in_flight_requests", | ||
| Help: "Current number of in-flight HTTP requests.", | ||
| }) | ||
| httpRequestsTotal = promauto.NewCounterVec(prometheus.CounterOpts{ | ||
| Name: "http_requests_total", | ||
| Help: "Total HTTP requests by handler/method/status.", | ||
| }, []string{"handler", "method", "code"}) | ||
| httpRequestDuration = promauto.NewHistogramVec(prometheus.HistogramOpts{ | ||
| Name: "http_request_duration_seconds", | ||
| Help: "HTTP request latency in seconds.", | ||
| Buckets: prometheus.DefBuckets, | ||
| }, []string{"handler", "method", "code"}) | ||
| ) | ||
|
|
||
| // job metrics | ||
| var ( | ||
| jobsStarted = promauto.NewCounterVec(prometheus.CounterOpts{ | ||
| Name: "jobs_started_total", | ||
| Help: "Total number of jobs started.", | ||
| }, []string{"job_type", "gpu"}) | ||
| jobsCompleted = promauto.NewCounterVec(prometheus.CounterOpts{ | ||
| Name: "jobs_completed_total", | ||
| Help: "Total number of jobs completed successfully.", | ||
| }, []string{"job_type", "gpu"}) | ||
| jobsFailed = promauto.NewCounterVec(prometheus.CounterOpts{ | ||
| Name: "jobs_failed_total", | ||
| Help: "Total number of jobs that failed.", | ||
| }, []string{"job_type", "gpu"}) | ||
| runningJobs = promauto.NewCounterVec(prometheus.CounterOpts{ | ||
| Name: "running_jobs", | ||
| Help: "Total jobs currently running", | ||
| }, []string{"gpu"}) | ||
| ) | ||
|
|
||
| // system metrics (cpu, memory, disk, etc.) | ||
| var ( | ||
| // cpu (percent of total) | ||
| systemCPUPercent = promauto.NewGauge(prometheus.GaugeOpts{ | ||
| Name: "system_cpu_usage_percent", | ||
| Help: "Host CPU usage percentage (all cores averaged).", | ||
| }) | ||
|
|
||
| // memory | ||
| systemMemTotalBytes = promauto.NewGauge(prometheus.GaugeOpts{ | ||
| Name: "system_memory_total_bytes", | ||
| Help: "Host total memory bytes.", | ||
| }) | ||
| systemMemUsedBytes = promauto.NewGauge(prometheus.GaugeOpts{ | ||
| Name: "system_memory_used_bytes", | ||
| Help: "Host used memory bytes.", | ||
| }) | ||
|
|
||
| // disk per mountpoint | ||
| systemDiskTotalBytes = promauto.NewGaugeVec(prometheus.GaugeOpts{ | ||
| Name: "system_disk_total_bytes", | ||
| Help: "Total disk bytes for a mountpoint.", | ||
| }, []string{"mountpoint"}) | ||
|
|
||
| systemDiskUsedBytes = promauto.NewGaugeVec(prometheus.GaugeOpts{ | ||
| Name: "system_disk_used_bytes", | ||
| Help: "Used disk bytes for a mountpoint.", | ||
| }, []string{"mountpoint"}) | ||
| ) | ||
|
|
||
| // this function may need to run per server to capture local system metrics | ||
|
|
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| func startSystemCollector(ctx context.Context) { | ||
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|
||
|
|
||
| go func() { | ||
| ticker := time.NewTicker(5 * time.Second) | ||
| defer ticker.Stop() | ||
|
|
||
| for { | ||
|
|
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| select { | ||
| case <-ctx.Done(): | ||
| return | ||
|
|
||
| case <-ticker.C: | ||
|
|
||
| // cpu | ||
| pct, err := cpuinfo.Percent(0, false) | ||
|
|
||
| if err == nil && len(pct) > 0 { | ||
| systemCPUPercent.Set(pct[0]) | ||
| } else { | ||
| // TODO: log err | ||
| } | ||
|
|
||
| // memory | ||
| m, err := meminfo.VirtualMemory() | ||
| if err == nil { | ||
| systemMemTotalBytes.Set(float64(m.Total)) | ||
| systemMemUsedBytes.Set(float64(m.Used)) | ||
| } else { | ||
| // TODO: log err | ||
| } | ||
|
|
||
| // disk capture | ||
| parts, err := diskinfo.Partitions(false) | ||
| if err == nil { | ||
| for _, p := range parts { | ||
| if u, err := diskinfo.Usage(p.Mountpoint); err == nil { | ||
| // Use a consistent label key (e.g., mountpoint) | ||
| systemDiskTotalBytes.WithLabelValues(u.Path).Set(float64(u.Total)) | ||
| systemDiskUsedBytes.WithLabelValues(u.Path).Set(float64(u.Used)) | ||
| } else { | ||
| // TODO: log err | ||
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|
||
| } | ||
| } | ||
| } else { | ||
| // TODO: log err | ||
| } | ||
| } | ||
| } | ||
| }() | ||
| } | ||
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