35 lines
1.2 KiB
Go
35 lines
1.2 KiB
Go
package mongo
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import (
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"log"
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"time"
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"git.k-space.ee/k-space/logmower-shipper/pkg/globals"
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prom "github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promauto"
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mongoEvent "go.mongodb.org/mongo-driver/event"
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mongoOpt "go.mongodb.org/mongo-driver/mongo/options"
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)
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const promSubsystem = "database"
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var promDbHeartbeat = promauto.NewHistogramVec(prom.HistogramOpts{
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Namespace: globals.PrometheusPrefix, Subsystem: promSubsystem,
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Name: "heartbeat_time",
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Help: "Time in seconds for succeeded heartbeat, or 0 on failure",
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Buckets: []float64{0.1, 0.2, 0.5, 1, 5, 10, 50},
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}, []string{"connection_id"})
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func monitoredClientOptions() *mongoOpt.ClientOptions {
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return mongoOpt.Client().
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SetServerMonitor(&mongoEvent.ServerMonitor{
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ServerHeartbeatSucceeded: func(ev *mongoEvent.ServerHeartbeatSucceededEvent) {
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promDbHeartbeat.WithLabelValues(ev.ConnectionID).Observe(time.Duration(ev.DurationNanos).Seconds())
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},
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ServerHeartbeatFailed: func(ev *mongoEvent.ServerHeartbeatFailedEvent) {
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promDbHeartbeat.WithLabelValues(ev.ConnectionID).Observe(0)
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log.Printf("database heartbeat failed on connection %q: %e", ev.ConnectionID, ev.Failure)
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},
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})
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}
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