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https://issues.apache.org/jira/browse/FLINK-3554?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15179690#comment-15179690
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ASF GitHub Bot commented on FLINK-3554:
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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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