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https://issues.apache.org/jira/browse/FLINK-13491?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16895958#comment-16895958
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Haibo Sun commented on FLINK-13491:
-----------------------------------
So for one-input operator, `endInput ()` repeats `close ()` semantically. Maybe
we don't need `BoundedOneInput`, but we need to call `close()` immediately when
the input is finished?
> AsyncWaitOperator doesn't handle endInput call properly
> -------------------------------------------------------
>
> Key: FLINK-13491
> URL: https://issues.apache.org/jira/browse/FLINK-13491
> Project: Flink
> Issue Type: Bug
> Components: API / DataStream
> Affects Versions: 1.9.0
> Reporter: Piotr Nowojski
> Priority: Blocker
> Fix For: 1.9.0
>
>
> This is the same issue as for {{ContinousFileReaderOperator}} in
> https://issues.apache.org/jira/browse/FLINK-13376. {{AsyncWaitOperator}} will
> propagate {{endInput}} notification immediately, even if it has some records
> buffered.
> Side note, this also shows that the current {{BoundedOneInput#endInput}} API
> is easy to mishandle if an operator buffers some records internally. Maybe we
> could redesign this API somehow [~aljoscha] [~sunhaibotb]?
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