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https://issues.apache.org/jira/browse/FLINK-4809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16242916#comment-16242916
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Jing Fan commented on FLINK-4809:
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Do we have any update on the PR? It has been handing for weeks.
> Operators should tolerate checkpoint failures
> ---------------------------------------------
>
> Key: FLINK-4809
> URL: https://issues.apache.org/jira/browse/FLINK-4809
> Project: Flink
> Issue Type: Sub-task
> Components: State Backends, Checkpointing
> Reporter: Stephan Ewen
> Assignee: Stefan Richter
> Fix For: 1.4.0
>
>
> Operators should try/catch exceptions in the synchronous and asynchronous
> part of the checkpoint and send a {{DeclineCheckpoint}} message as a result.
> The decline message should have the failure cause attached to it.
> The checkpoint barrier should be sent anyways as a first step before
> attempting to make a state checkpoint, to make sure that downstream operators
> do not block in alignment.
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