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lib/httpserver: export vm_available_memory_bytes and vm_available_cpu_cores metrics

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These metrics are useful for tracking the available memory and CPU cores for VictoriaMetrics apps.
This commit is contained in:
Aliaksandr Valialkin
2021-03-10 12:01:18 +02:00
parent e02265cfa7
commit bc5c4add89
2 changed files with 4 additions and 0 deletions
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3
lib/httpserver/metrics.go
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@@ -12,6 +12,7 @@ import (
"github.com/VictoriaMetrics/VictoriaMetrics/lib/buildinfo"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/bytesutil"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/cgroup"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/flagutil"
"github.com/VictoriaMetrics/VictoriaMetrics/lib/memory"
"github.com/VictoriaMetrics/metrics"
@@ -48,6 +49,8 @@ func writePrometheusMetrics(w io.Writer) {
fmt.Fprintf(w, "vm_app_version{version=%q, short_version=%q} 1\n", buildinfo.Version,
versionRe.FindString(buildinfo.Version))
fmt.Fprintf(w, "vm_allowed_memory_bytes %d\n", memory.Allowed())
fmt.Fprintf(w, "vm_available_memory_bytes %d\n", memory.Allowed()+memory.Remaining())
fmt.Fprintf(w, "vm_available_cpu_cores %d\n", cgroup.AvailableCPUs())
// Export start time and uptime in seconds
fmt.Fprintf(w, "vm_app_start_timestamp %d\n", startTime.Unix())