ed3f287fe8
To combat label cardinality explosions remove the type from metrics. This was most severe in the histogram for request duration, remove it there. It's also highlighted difference between grpc and forward code, where forward did use type and grpc didn't; getting rid of all that "fixes" that discrepancy Move monitor.go back into the vars directory and make it private again. Also name it slightly better Fixes: #4507 Signed-off-by: Miek Gieben <miek@miek.nl>
75 lines
2.7 KiB
Go
75 lines
2.7 KiB
Go
package vars
|
|
|
|
import (
|
|
"github.com/coredns/coredns/plugin"
|
|
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
"github.com/prometheus/client_golang/prometheus/promauto"
|
|
)
|
|
|
|
// Request* and Response* are the prometheus counters and gauges we are using for exporting metrics.
|
|
var (
|
|
RequestCount = promauto.NewCounterVec(prometheus.CounterOpts{
|
|
Namespace: plugin.Namespace,
|
|
Subsystem: subsystem,
|
|
Name: "requests_total",
|
|
Help: "Counter of DNS requests made per zone, protocol and family.",
|
|
}, []string{"server", "zone", "proto", "family", "type"})
|
|
|
|
RequestDuration = promauto.NewHistogramVec(prometheus.HistogramOpts{
|
|
Namespace: plugin.Namespace,
|
|
Subsystem: subsystem,
|
|
Name: "request_duration_seconds",
|
|
Buckets: plugin.TimeBuckets,
|
|
Help: "Histogram of the time (in seconds) each request took per zone.",
|
|
}, []string{"server", "zone"})
|
|
|
|
RequestSize = promauto.NewHistogramVec(prometheus.HistogramOpts{
|
|
Namespace: plugin.Namespace,
|
|
Subsystem: subsystem,
|
|
Name: "request_size_bytes",
|
|
Help: "Size of the EDNS0 UDP buffer in bytes (64K for TCP) per zone and protocol.",
|
|
Buckets: []float64{0, 100, 200, 300, 400, 511, 1023, 2047, 4095, 8291, 16e3, 32e3, 48e3, 64e3},
|
|
}, []string{"server", "zone", "proto"})
|
|
|
|
RequestDo = promauto.NewCounterVec(prometheus.CounterOpts{
|
|
Namespace: plugin.Namespace,
|
|
Subsystem: subsystem,
|
|
Name: "do_requests_total",
|
|
Help: "Counter of DNS requests with DO bit set per zone.",
|
|
}, []string{"server", "zone"})
|
|
|
|
ResponseSize = promauto.NewHistogramVec(prometheus.HistogramOpts{
|
|
Namespace: plugin.Namespace,
|
|
Subsystem: subsystem,
|
|
Name: "response_size_bytes",
|
|
Help: "Size of the returned response in bytes.",
|
|
Buckets: []float64{0, 100, 200, 300, 400, 511, 1023, 2047, 4095, 8291, 16e3, 32e3, 48e3, 64e3},
|
|
}, []string{"server", "zone", "proto"})
|
|
|
|
ResponseRcode = promauto.NewCounterVec(prometheus.CounterOpts{
|
|
Namespace: plugin.Namespace,
|
|
Subsystem: subsystem,
|
|
Name: "responses_total",
|
|
Help: "Counter of response status codes.",
|
|
}, []string{"server", "zone", "rcode"})
|
|
|
|
Panic = promauto.NewCounter(prometheus.CounterOpts{
|
|
Namespace: plugin.Namespace,
|
|
Name: "panics_total",
|
|
Help: "A metrics that counts the number of panics.",
|
|
})
|
|
|
|
PluginEnabled = promauto.NewGaugeVec(prometheus.GaugeOpts{
|
|
Namespace: plugin.Namespace,
|
|
Name: "plugin_enabled",
|
|
Help: "A metric that indicates whether a plugin is enabled on per server and zone basis.",
|
|
}, []string{"server", "zone", "name"})
|
|
)
|
|
|
|
const (
|
|
subsystem = "dns"
|
|
|
|
// Dropped indicates we dropped the query before any handling. It has no closing dot, so it can not be a valid zone.
|
|
Dropped = "dropped"
|
|
)
|