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https://issues.apache.org/jira/browse/FLINK-2074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14556352#comment-14556352
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ASF GitHub Bot commented on FLINK-2074:
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GitHub user aljoscha opened a pull request:
https://github.com/apache/flink/pull/716
[FLINK-2074] Fix erroneous emission of Sliding Time PreReducer
Before this, a sliding time window would keep emitting the last result
because the number of elements per pre-aggregation result was not
correctly reset on eviction.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/aljoscha/flink streaming-time-window-fix
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/716.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #716
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commit 17e0d782a83dd05da0fc4cfbb52efa260a36e54b
Author: Aljoscha Krettek <aljoscha.kret...@gmail.com>
Date: 2015-05-22T14:30:58Z
[FLINK-2074] Fix erroneous emission of Sliding Time PreReducer
Before this, a sliding time window would keep emitting the last result
because the number of elements per pre-aggregation result was not
correctly reset on eviction.
----
> Sliding Window Keeps Emitting Elements After Source Stops Producing
> -------------------------------------------------------------------
>
> Key: FLINK-2074
> URL: https://issues.apache.org/jira/browse/FLINK-2074
> Project: Flink
> Issue Type: Bug
> Components: Streaming
> Affects Versions: 0.9
> Reporter: Aljoscha Krettek
> Assignee: Aljoscha Krettek
> Priority: Blocker
>
> This happens when the source produces some elements, then the source stops
> for a while and then produces again some elements before stopping again.
> After this, the window will just keep emitting the last emitted element
> indefinitely.
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