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etcdserver/*: add "etcd_cluster_version" metric

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Signed-off-by: Gyuho Lee <leegyuho@amazon.com>
This commit is contained in:
Gyuho Lee 2018-11-13 21:23:07 -08:00 committed by Wenjia Zhang
parent cc959b4e5a
commit 5454bb9982
3 changed files with 35 additions and 1 deletions
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4
etcdserver/membership/cluster.go
View File

@ -36,6 +36,7 @@ import (
"github.com/coreos/etcd/store"
"github.com/coreos/etcd/version"
"github.com/coreos/go-semver/semver"
"github.com/prometheus/client_golang/prometheus"
)
// RaftCluster is a list of Members that belong to the same raft cluster
@ -376,7 +377,8 @@ func (c *RaftCluster) SetVersion(ver *semver.Version, onSet func(*semver.Version
if c.be != nil {
mustSaveClusterVersionToBackend(c.be, ver)
}
onSet(ver)
ClusterVersionMetrics.With(prometheus.Labels{"cluster_version": ver.String()}).Set(1)
onSet(ver)
}
func (c *RaftCluster) IsReadyToAddNewMember() bool {

31
etcdserver/membership/metrics.go Normal file
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@ -0,0 +1,31 @@
// Copyright 2018 The etcd Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package membership
import "github.com/prometheus/client_golang/prometheus"
var (
ClusterVersionMetrics = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Namespace: "etcd",
Subsystem: "cluster",
Name: "version",
Help: "Which version is running. 1 for 'cluster_version' label with current cluster version",
},
[]string{"cluster_version"})
)
func init() {
prometheus.MustRegister(ClusterVersionMetrics)
}

1
etcdserver/server.go
View File

@ -591,6 +591,7 @@ func (s *EtcdServer) start() {
s.readNotifier = newNotifier()
if s.ClusterVersion() != nil {
plog.Infof("starting server... [version: %v, cluster version: %v]", version.Version, version.Cluster(s.ClusterVersion().String()))
membership.ClusterVersionMetrics.With(prometheus.Labels{"cluster_version": s.ClusterVersion().String()}).Set(1)
} else {
plog.Infof("starting server... [version: %v, cluster version: to_be_decided]", version.Version)
}