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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2897) Use distinct initial indices for OutputEmitter round-robin
Date Thu, 22 Oct 2015 17:37:27 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14969518#comment-14969518

ASF GitHub Bot commented on FLINK-2897:

GitHub user greghogan opened a pull request:


    [FLINK-2897] [runtime] Use distinct initial indices for OutputEmitter round-robin


You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/greghogan/flink 2898_invert_travis_ci_build_order

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 #1290
commit dfb482e14535870c1599895949668e4bc252479f
Author: Greg Hogan <code@greghogan.com>
Date:   2015-10-22T15:12:43Z

    [FLINK-2898] [build] Invert Travis CI build order


> Use distinct initial indices for OutputEmitter round-robin
> ----------------------------------------------------------
>                 Key: FLINK-2897
>                 URL: https://issues.apache.org/jira/browse/FLINK-2897
>             Project: Flink
>          Issue Type: Improvement
>          Components: Distributed Runtime
>    Affects Versions: 0.10
>            Reporter: Greg Hogan
>            Assignee: Greg Hogan
> Currently, when performing a round-robin partitioning each task will sequentially partition
starting with partition "1". This is fine in the usual case where the number of partitioned
objects greatly exceeds the number of channels. However, in the case where the number of objects
is relatively few (each, perhaps, requiring a large computation or access to an external system)
it would be much better to begin partitioning at distinct indices (the task index).

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