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etcdserver: add "etcd_server_id" metric #9998

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merged 1 commit into from
Aug 13, 2018
Merged

etcdserver: add "etcd_server_id" metric #9998

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8 changes: 8 additions & 0 deletions etcdserver/metrics.go
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Original file line number Diff line number Diff line change
Expand Up @@ -112,6 +112,13 @@ var (
Help: "Which Go version server is running with. 1 for 'server_go_version' label with current version.",
},
[]string{"server_go_version"})
serverID = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: "etcd",
Subsystem: "server",
Name: "id",
Help: "Server or member ID in hexadecimal format. 1 for 'server_id' label with current ID.",
},
[]string{"server_id"})
)

func init() {
Expand All @@ -129,6 +136,7 @@ func init() {
prometheus.MustRegister(quotaBackendBytes)
prometheus.MustRegister(currentVersion)
prometheus.MustRegister(currentGoVersion)
prometheus.MustRegister(serverID)

currentVersion.With(prometheus.Labels{
"server_version": version.Version,
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2 changes: 2 additions & 0 deletions etcdserver/server.go
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Expand Up @@ -60,6 +60,7 @@ import (
"github.com/coreos/go-semver/semver"
"github.com/coreos/pkg/capnslog"
humanize "github.com/dustin/go-humanize"
"github.com/prometheus/client_golang/prometheus"
"go.uber.org/zap"
)

Expand Down Expand Up @@ -511,6 +512,7 @@ func NewServer(cfg ServerConfig) (srv *EtcdServer, err error) {
forceVersionC: make(chan struct{}),
AccessController: &AccessController{CORS: cfg.CORS, HostWhitelist: cfg.HostWhitelist},
}
serverID.With(prometheus.Labels{"server_id": id.String()}).Set(1)

srv.applyV2 = &applierV2store{store: srv.v2store, cluster: srv.cluster}

Expand Down