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https://issues.apache.org/jira/browse/FLINK-2897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14969807#comment-14969807
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ASF GitHub Bot commented on FLINK-2897:
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GitHub user greghogan opened a pull request:
https://github.com/apache/flink/pull/1292
[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
2897_use_distinct_initial_indices_for_outputemitter_round_robin
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/1292.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 #1292
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commit 6365e693a69810cf1597a2f19191d08b6e644da8
Author: Greg Hogan <[email protected]>
Date: 2015-10-22T14:43:26Z
[FLINK-2897] [runtime] Use distinct initial indices for OutputEmitter
round-robin
----
> 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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