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https://issues.apache.org/jira/browse/TWILL-129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14556884#comment-14556884
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ASF GitHub Bot commented on TWILL-129:
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Github user chtyim commented on the pull request:
https://github.com/apache/incubator-twill/pull/34#issuecomment-104783879
Merged
> Race condition in leader election if leader quitted before follower set the
> watch
> ---------------------------------------------------------------------------------
>
> Key: TWILL-129
> URL: https://issues.apache.org/jira/browse/TWILL-129
> Project: Apache Twill
> Issue Type: Bug
> Components: zookeeper
> Affects Versions: 0.4.0-incubating, 0.5.0-incubating, 0.4.1-incubating
> Reporter: Terence Yim
> Assignee: Terence Yim
> Priority: Blocker
>
> In the LeaderElection implementation, if the leader quit and delete its node
> before the next-in-line follower try to set the watch through the exists()
> call, the follower will fail silently without noticing the leader node is
> gone.
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