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https://issues.apache.org/jira/browse/FLINK-2407?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14646350#comment-14646350
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ASF GitHub Bot commented on FLINK-2407:
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Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/951#issuecomment-126007290
Yeah, I thought about an "off handler". Turns out that the BarrierTracker
is almost like an "off handler" when no barriers arrive.
> Add an API switch to select between "exactly once" and "at least once" fault
> tolerance
> --------------------------------------------------------------------------------------
>
> Key: FLINK-2407
> URL: https://issues.apache.org/jira/browse/FLINK-2407
> Project: Flink
> Issue Type: Sub-task
> Components: Streaming
> Affects Versions: 0.10
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 0.10
>
>
> Based on the addition of the BarrierTracker, we can add a switch to choose
> between the two modes "exactly once" and "at least once".
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