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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-1797) Add jumping pre-reducer for Count and Time windows
Date Tue, 31 Mar 2015 03:45:52 GMT

    [ https://issues.apache.org/jira/browse/FLINK-1797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14387919#comment-14387919

ASF GitHub Bot commented on FLINK-1797:

GitHub user ggevay opened a pull request:


    [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:


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 <ggab90@gmail.com>
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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