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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-3554) Bounded sources should emit a Max Watermark when they are done
Date Fri, 04 Mar 2016 10:30:41 GMT

    [ https://issues.apache.org/jira/browse/FLINK-3554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15179690#comment-15179690
] 

ASF GitHub Bot commented on FLINK-3554:
---------------------------------------

Github user wenlonglwl commented on the pull request:

    https://github.com/apache/flink/pull/1750#issuecomment-192224050
  
    In our production environment, window is used to make a small batch, for some operator
that should be done in batch to improve the throughput, such as writing data to HBase, whether
the count reach or not, is not significant, but no losing data is. I think this is a common
user story.



> Bounded sources should emit a Max Watermark when they are done
> --------------------------------------------------------------
>
>                 Key: FLINK-3554
>                 URL: https://issues.apache.org/jira/browse/FLINK-3554
>             Project: Flink
>          Issue Type: Bug
>          Components: Streaming
>    Affects Versions: 1.0.0
>            Reporter: Stephan Ewen
>            Assignee: Stephan Ewen
>            Priority: Blocker
>             Fix For: 1.0.0
>
>
> For proper event time support in bounded sources, these sources should emit a final watermark
before shutting down.



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