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Merge pull request #53717 from liggitt/quorum 

Automatic merge from submit-queue (batch tested with PRs 51677, 53690, 53025, 53717, 53664). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

Change --etcd-quorum-read default to true

The tested configurations for HA etcd use quorum reads. Defaulting this off causes potential correctness issues in controllers that do live lookups when processing their work queue. Given that, we should default this on.

Quorum reads are far more performant on etcd3 than they were on etcd2

xref
https://github.com/kubernetes/kubernetes/pull/53662#discussion_r143806500
https://github.com/kubernetes/kubernetes/issues/19902
https://github.com/kubernetes/kubernetes/issues/48865

```release-note
apiserver: --etcd-quorum-read now defaults to true, to ensure correct operation with HA etcd clusters
```

Kubernetes-commit: 42d22aea9f4b26bfb6972dd8e22459cd4b05b6cf
This commit is contained in:
Kubernetes Publisher 2017-10-11 09:35:32 -07:00
parent 791ccbbf02 37b44cbe7f
commit c91553903a
1 changed files with 1 additions and 0 deletions
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pkg/storage/storagebackend/config.go
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@ -72,5 +72,6 @@ func NewDefaultConfig(prefix string, codec runtime.Codec) *Config {
DeserializationCacheSize: 0,
Codec: codec,
CompactionInterval: DefaultCompactInterval,
Quorum: true,
}
}