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https://issues.apache.org/jira/browse/FLINK-2406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14644692#comment-14644692
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ASF GitHub Bot commented on FLINK-2406:
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Github user gyfora commented on the pull request:
https://github.com/apache/flink/pull/938#issuecomment-125684625
But if you think this is some random issue occuring for me, go ahead. It
looks good and is a critical fix.
> Abstract BarrierBuffer to an exchangeable BarrierHandler
> --------------------------------------------------------
>
> Key: FLINK-2406
> URL: https://issues.apache.org/jira/browse/FLINK-2406
> Project: Flink
> Issue Type: Sub-task
> Components: Streaming
> Affects Versions: 0.10
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 0.10
>
>
> We need to make the Checkpoint handling pluggable, to allow us to use
> different implementations:
> - BarrierBuffer for "exactly once" processing. This inevitably introduces a
> bit of latency.
> - BarrierTracker for "at least once" processing, with no added latency.
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