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https://issues.apache.org/jira/browse/FLINK-4036?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-4036:
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Labels: auto-deprioritized-major auto-deprioritized-minor (was:
auto-deprioritized-major stale-minor)
Priority: Not a Priority (was: Minor)
This issue was labeled "stale-minor" 7 days ago and has not received any
updates so it is being deprioritized. If this ticket is actually Minor, please
raise the priority and ask a committer to assign you the issue or revive the
public discussion.
> Potential deadlock in StreamIterationSink
> -----------------------------------------
>
> Key: FLINK-4036
> URL: https://issues.apache.org/jira/browse/FLINK-4036
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Task
> Reporter: Ufuk Celebi
> Priority: Not a Priority
> Labels: auto-deprioritized-major, auto-deprioritized-minor
>
> When the stream iteration head finishes before the iteration tail acquires
> the feedback queue, the tail will block indefinitely.
> This happened here:
> https://s3.amazonaws.com/archive.travis-ci.org/jobs/134215892/log.txt
> You can provoke this by adding a sleep before acquiring the feedback queue in
> {{StreamIterationTail}} and running {{IterateTest.testSimpleIteration}}.
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