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https://issues.apache.org/jira/browse/FLINK-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14620625#comment-14620625
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Stephan Ewen commented on FLINK-2339:
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I have a patch coming up, currently testing on Travis...
> Prevent asynchronous checkpoint calls from overtaking each other
> ----------------------------------------------------------------
>
> Key: FLINK-2339
> URL: https://issues.apache.org/jira/browse/FLINK-2339
> Project: Flink
> Issue Type: Improvement
> Components: TaskManager
> Affects Versions: 0.10
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 0.10
>
>
> Currently, when checkpoint state materialization takes very long, and the
> checkpoint interval is low, the asynchronous calls to trigger checkpoints (on
> the sources) could overtake prior calls.
> We can fix that by making sure that all calls are dispatched in order by the
> same thread, rather than spawning a new thread for each call.
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