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https://issues.apache.org/jira/browse/FLINK-23772?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yun Gao closed FLINK-23772.
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Resolution: Not A Problem
> Double check if non-keyed FullyFinishedOperatorState can be mixed up with non
> finished OperatorState on recovery
> ----------------------------------------------------------------------------------------------------------------
>
> Key: FLINK-23772
> URL: https://issues.apache.org/jira/browse/FLINK-23772
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Checkpointing
> Affects Versions: 1.14.0
> Reporter: Piotr Nowojski
> Priority: Critical
> Fix For: 1.14.0
>
>
> I'm not sure if with non-keyed state we have an issue that it can be
> reshuffled to different operators during recovery. Are there any guarantees
> that if subtask 1 has state A, while subtask 2 has B, that after recovery it
> won’t be rotated?
> # is this an issue?
> # if so, if we have partially finished tasks with some operators having,
> {{FullyFinishedOperatorState}}, what prevents
> {{VerticesFinishedCache.calculateIfFinished}} from failing if the
> {{FullyFinishedOperatorState}} gets assigned to an operator chain with non
> finished operator?
> For example an operator chain with parallelism of two, non-keyed, before
> recovery:
> {noformat}
> src1 (finished state) -> foo1 (finished state)
> src2 -> foo2
> {noformat}
> Can we end up after recovery with:
> {noformat}
> src1 (finished state) -> foo2
> src2 -> foo1 (finished state)
> {noformat}
> ?
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