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https://issues.apache.org/jira/browse/ZOOKEEPER-4497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17513349#comment-17513349
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May commented on ZOOKEEPER-4497:
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Sorry, it's not a bug.
> Crash before closing session makes an ephemeral znode leave in ZooKeeper
> ------------------------------------------------------------------------
>
> Key: ZOOKEEPER-4497
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-4497
> Project: ZooKeeper
> Issue Type: Bug
> Affects Versions: 3.6.3
> Reporter: May
> Priority: Major
>
> # client connects to node ZK1;
> # client creates an ephemeral znode "/eph"
> # client closes the session;
> # ZK1 crashes before sending closing session request to leader
> # the ephemeral znode "/eph" leaves in the cluster
> Since ZK1 is down, the cluster should clean up sessions that connect to ZK1.
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