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https://issues.apache.org/jira/browse/FLINK-4939?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15663824#comment-15663824
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ASF GitHub Bot commented on FLINK-4939:
---------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/flink/pull/2707
> GenericWriteAheadSink: Decouple the creating from the committing subtask for
> a pending checkpoint
> -------------------------------------------------------------------------------------------------
>
> Key: FLINK-4939
> URL: https://issues.apache.org/jira/browse/FLINK-4939
> Project: Flink
> Issue Type: Improvement
> Components: Cassandra Connector
> Reporter: Kostas Kloudas
> Assignee: Kostas Kloudas
> Fix For: 1.2.0
>
>
> So far the GenericWriteAheadSink expected that
> the subtask that wrote a pending checkpoint to the
> state backend, will be also the one to commit it to
> the third-party storage system.
> This issue targets at removing this assumption. To do this
> the CheckpointCommitter has to be able to dynamically
> take the subtaskIdx as a parameter when asking
> if a checkpoint was committed and also change the
> state kept by the GenericWriteAheadSink to also
> include that subtask index of the subtask that wrote
> the pending checkpoint.
> This change is also necessary for making the operator rescalable.
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