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https://issues.apache.org/jira/browse/FLINK-5218?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15711763#comment-15711763
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Aljoscha Krettek commented on FLINK-5218:
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This seems to be a duplicate of FLINK-5215.
> Eagerly close checkpoint streams on cancellation
> ------------------------------------------------
>
> Key: FLINK-5218
> URL: https://issues.apache.org/jira/browse/FLINK-5218
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Affects Versions: 1.1.3
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Priority: Critical
> Fix For: 1.2.0, 1.1.4
>
>
> Some output streams perform blocking operations that cannot be properly
> interrupted. This causes cancellations to take very long when happening
> concurrently to large synchronous state snapshot operations.
> Closing the streams concurrently helps to abort these blocking operations.
> This might already be fixed in 1.2 by the {{CloseableRegistry}}.
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