mirror of
https://github.com/coredns/coredns.git
synced 2025-11-03 18:53:13 -05:00
0d6e113f90
Add a NativeHistogramBucketFactor parameter to the use of `NewHistogramVec` in order to enable use of Prometheus Native Histograms. This will store automatically computed sparse buckets in CoreDNS. If a compatible Prometeus requests native histograms this data will returned instead of the static buckets. The default factor of 1.05 should provide high quality resolution data. Signed-off-by: SuperQ <superq@gmail.com>
42 lines
1.5 KiB
Go
42 lines
1.5 KiB
Go
package proxy
|
|
|
|
import (
|
|
"github.com/coredns/coredns/plugin"
|
|
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"github.com/prometheus/client_golang/prometheus/promauto"
|
|
)
|
|
|
|
// Variables declared for monitoring.
|
|
var (
|
|
requestDuration = promauto.NewHistogramVec(prometheus.HistogramOpts{
|
|
Namespace: plugin.Namespace,
|
|
Subsystem: "proxy",
|
|
Name: "request_duration_seconds",
|
|
Buckets: plugin.TimeBuckets,
|
|
NativeHistogramBucketFactor: plugin.NativeHistogramBucketFactor,
|
|
Help: "Histogram of the time each request took.",
|
|
}, []string{"proxy_name", "to", "rcode"})
|
|
|
|
healthcheckFailureCount = promauto.NewCounterVec(prometheus.CounterOpts{
|
|
Namespace: plugin.Namespace,
|
|
Subsystem: "proxy",
|
|
Name: "healthcheck_failures_total",
|
|
Help: "Counter of the number of failed healthchecks.",
|
|
}, []string{"proxy_name", "to"})
|
|
|
|
connCacheHitsCount = promauto.NewCounterVec(prometheus.CounterOpts{
|
|
Namespace: plugin.Namespace,
|
|
Subsystem: "proxy",
|
|
Name: "conn_cache_hits_total",
|
|
Help: "Counter of connection cache hits per upstream and protocol.",
|
|
}, []string{"proxy_name", "to", "proto"})
|
|
|
|
connCacheMissesCount = promauto.NewCounterVec(prometheus.CounterOpts{
|
|
Namespace: plugin.Namespace,
|
|
Subsystem: "proxy",
|
|
Name: "conn_cache_misses_total",
|
|
Help: "Counter of connection cache misses per upstream and protocol.",
|
|
}, []string{"proxy_name", "to", "proto"})
|
|
)
|