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https://issues.apache.org/jira/browse/FLINK-4753?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15572008#comment-15572008
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ASF GitHub Bot commented on FLINK-4753:
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Github user rmetzger commented on the issue:
https://github.com/apache/flink/pull/2604
Okay. I'm sorry that I didn't respond to the JIRA when you opened it.
> Kafka 0.8 connector's Periodic Offset Committer should synchronize on
> checkpoint lock
> -------------------------------------------------------------------------------------
>
> Key: FLINK-4753
> URL: https://issues.apache.org/jira/browse/FLINK-4753
> Project: Flink
> Issue Type: Bug
> Components: Kafka Connector
> Reporter: Tzu-Li (Gordon) Tai
> Assignee: Tzu-Li (Gordon) Tai
> Fix For: 1.2.0
>
>
> The {{PeriodicOffsetCommitter}} doesn't synchronize on the checkpoint lock
> when creating a copy of the partition offsets in the current state.
> I propose to pass the checkpoint lock into{{PeriodicOffsetCommitter}}, and
> let {{PeriodicOffsetCommitter}} use {{Kafka08Fetcher#snapshotCurrentState()}}
> to make the current state copy.
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