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https://issues.apache.org/jira/browse/TAJO-1049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14142563#comment-14142563
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Hudson commented on TAJO-1049:
------------------------------
SUCCESS: Integrated in Tajo-block_iteration-branch-build #4 (See
[https://builds.apache.org/job/Tajo-block_iteration-branch-build/4/])
TAJO-1049: Remove the parallel degree limit up to the maximum cluster capacity.
(hyunsik: rev e5f7c9591c71c998e702c789d249af20da3eeb6b)
* CHANGES
* tajo-core/src/main/java/org/apache/tajo/master/querymaster/SubQuery.java
> Remove the parallel degree limit up to the maximum cluster capacity
> -------------------------------------------------------------------
>
> Key: TAJO-1049
> URL: https://issues.apache.org/jira/browse/TAJO-1049
> Project: Tajo
> Issue Type: Improvement
> Components: data shuffle, distributed query plan
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Priority: Trivial
> Fix For: 0.9.0
>
> Attachments: TAJO-1049.patch, TAJO-1049_2.patch, TAJO-1049_3.patch
>
>
> The maximum parallel degree had been limited by the number of cluster node
> capacity. This was because the old hash shuffle approach created too many
> small files depending on the number of parallel degree of a stage.
> But, TAJO-992 solved this problem. We don't need to use this limit anymore.
> This patch removes the limit.
> I think that this patch requires cluster test and it is hard to verify this
> patch in unit tests.
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