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https://issues.apache.org/jira/browse/FLINK-3107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15141442#comment-15141442
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ASF GitHub Bot commented on FLINK-3107:
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Github user asfgit closed the pull request at:
https://github.com/apache/flink/pull/1610
> ZooKeeperCheckpointIDCounter.start() can block JobManager actor
> ---------------------------------------------------------------
>
> Key: FLINK-3107
> URL: https://issues.apache.org/jira/browse/FLINK-3107
> Project: Flink
> Issue Type: Bug
> Components: JobManager
> Affects Versions: 0.10.1
> Reporter: Ufuk Celebi
>
> In HA mode, the job manager enables checkpoints during submission of
> streaming programs.
> This leads to call to ZooKeeperCheckpointIDCounter.start(), which
> communicates with ZooKeeper. This can block the job manager actor.
> A solution is to start the counter later instead of the CheckpointCoordinator
> constructor.
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