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Merge pull request #72896 from lorenz/fix-apiserver-healthcheck

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Fix etcd healthcheck for consensus failures
This commit is contained in:
Kubernetes Prow Robot 2019-01-25 15:27:45 -08:00 committed by GitHub
commit b04d7ca976
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1 changed files with 6 additions and 3 deletions
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9
staging/src/k8s.io/apiserver/pkg/storage/storagebackend/factory/etcd3.go
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@ -19,6 +19,7 @@ package factory
import (
"context"
"fmt"
"path"
"sync"
"sync/atomic"
"time"
@ -72,10 +73,12 @@ func newETCD3HealthCheck(c storagebackend.Config) (func() error, error) {
client := clientValue.Load().(*clientv3.Client)
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
defer cancel()
if _, err := client.Cluster.MemberList(ctx); err != nil {
return fmt.Errorf("error listing etcd members: %v", err)
// See https://github.com/etcd-io/etcd/blob/master/etcdctl/ctlv3/command/ep_command.go#L118
_, err := client.Get(ctx, path.Join(c.Prefix, "health"))
if err == nil {
return nil
}
return nil
return fmt.Errorf("error getting data from etcd: %v", err)
}, nil
}