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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2406) Abstract BarrierBuffer to an exchangeable BarrierHandler
Date Wed, 29 Jul 2015 09:16:06 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14645761#comment-14645761
] 

ASF GitHub Bot commented on FLINK-2406:
---------------------------------------

Github user StephanEwen closed the pull request at:

    https://github.com/apache/flink/pull/938


> 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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