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https://issues.apache.org/jira/browse/FLINK-1797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14387919#comment-14387919
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ASF GitHub Bot commented on FLINK-1797:
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GitHub user ggevay opened a pull request:
https://github.com/apache/flink/pull/549
[FLINK-1797] Add jumping pre-reducer for Count and Time windows
I created 4 classes: for count and time windows, and their grouped
versions. They extend the corresponding (grouped/non-grouped)
TumblingPreReducer class, since the only difference from a tumbling window is
that we skip some elements after an emitWindow.
I added some unit tests for the new classes, and also did some testing with
real streams.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ggevay/flink JumpingWindow
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/549.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 #549
----
commit 3c06ca4d0a1fc528eab5924f8ed3c5a98be5f168
Author: Gabor Gevay <[email protected]>
Date: 2015-03-31T03:36:30Z
[FLINK-1797] Add jumping pre-reducer for Count and Time windows
----
> Add jumping pre-reducer for Count and Time windows
> --------------------------------------------------
>
> Key: FLINK-1797
> URL: https://issues.apache.org/jira/browse/FLINK-1797
> Project: Flink
> Issue Type: Improvement
> Components: Streaming
> Reporter: Gyula Fora
> Assignee: Gabor Gevay
> Fix For: 0.9
>
>
> There is currently only support for sliding and tumbling windows. This should
> be an easy extension of the tumbling pre-reducer
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