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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-4809) Operators should tolerate checkpoint failures
Date Mon, 13 Nov 2017 09:58:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-4809?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16249323#comment-16249323
] 

ASF GitHub Bot commented on FLINK-4809:
---------------------------------------

Github user StefanRRichter commented on the issue:

    https://github.com/apache/flink/pull/4883
  
    @PangZhi No updates, because I was on vacation and we currently give priority to the release
1.4 testing. After that I will finish this, but from the review comments, I would not expect
that there are many changes to what I implemented and this can be merged as soon as there
is time to do so.


> 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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