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Posted to issues@flink.apache.org by "Jeyhun Karimov (JIRA)" <ji...@apache.org> on 2016/01/29 16:20:39 UTC

[jira] [Commented] (FLINK-1509) Streaming Group Reduce Combiner

    [ https://issues.apache.org/jira/browse/FLINK-1509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15123577#comment-15123577 ] 

Jeyhun Karimov commented on FLINK-1509:
---------------------------------------

I will give a try to this problem

> Streaming Group Reduce Combiner
> -------------------------------
>
>                 Key: FLINK-1509
>                 URL: https://issues.apache.org/jira/browse/FLINK-1509
>             Project: Flink
>          Issue Type: New Feature
>          Components: Local Runtime, Optimizer
>            Reporter: Fabian Hueske
>            Priority: Minor
>
> Combiners for GroupReduce operators are currently always (partially) sorting their input even if the data is already appropriately sorted.
> It should be relatively easy to add chained and unchained implementations of a streaming group reduce combiner strategy .



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