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https://issues.apache.org/jira/browse/FLINK-27377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17528014#comment-17528014
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Yi Tang commented on FLINK-27377:
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Looks like the rename operation has been improved in HADOOP-15323.
So this issue will be not obvious in the example i provided.
> Job master blocks on marking vertex finished
> --------------------------------------------
>
> Key: FLINK-27377
> URL: https://issues.apache.org/jira/browse/FLINK-27377
> Project: Flink
> Issue Type: Improvement
> Reporter: Yi Tang
> Priority: Minor
> Labels: pull-request-available
>
> I have a case using FileSystem as batch sink, it will commit files by
> {{FinalizeOnMaster#finalizeGlobal}} while updating state from Running to
> Finished.
> When {{FinalizeOnMaster#finalizeGlobal}} method is blocked, the
> {{JobMaster#updateTaskExecutionState}} will also be blocked. Then the job
> master can not respond any new requests until
> {{JobMaster#updateTaskExecutionState}} is complete.
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