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Merge pull request #89881 from embano1/etcd-leader-ctx
Add etcd WithRequireLeader option to API watches
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commit
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@ -126,7 +126,15 @@ func (w *watcher) createWatchChan(ctx context.Context, key string, rev int64, re
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// The filter doesn't filter out any object.
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wc.internalPred = storage.Everything
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}
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wc.ctx, wc.cancel = context.WithCancel(ctx)
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// The etcd server waits until it cannot find a leader for 3 election
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// timeouts to cancel existing streams. 3 is currently a hard coded
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// constant. The election timeout defaults to 1000ms. If the cluster is
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// healthy, when the leader is stopped, the leadership transfer should be
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// smooth. (leader transfers its leadership before stopping). If leader is
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// hard killed, other servers will take an election timeout to realize
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// leader lost and start campaign.
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wc.ctx, wc.cancel = context.WithCancel(clientv3.WithRequireLeader(ctx))
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return wc
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}
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