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https://issues.apache.org/jira/browse/TAJO-628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13910475#comment-13910475
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Hudson commented on TAJO-628:
-----------------------------
SUCCESS: Integrated in Tajo-master-build #85 (See
[https://builds.apache.org/job/Tajo-master-build/85/])
TAJO-628: The second stage of distinct aggregation can be scheduled to only one
node. (hyunsik:
https://git-wip-us.apache.org/repos/asf/?p=incubator-tajo.git&a=commit&h=5eafede2fd1e9a512aedf51371291d028dbbeca3)
* tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/worker/Task.java
*
tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/worker/TajoResourceAllocator.java
*
tajo-core/tajo-core-backend/src/main/java/org/apache/tajo/master/querymaster/Repartitioner.java
*
tajo-core/tajo-core-backend/src/test/java/org/apache/tajo/master/TestTajoResourceManager.java
* CHANGES.txt
> The second stage of distinct aggregation can be scheduled to only one node.
> ---------------------------------------------------------------------------
>
> Key: TAJO-628
> URL: https://issues.apache.org/jira/browse/TAJO-628
> Project: Tajo
> Issue Type: Bug
> Components: distributed query plan
> Affects Versions: 0.8-incubating, 1.0-incubating
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Priority: Minor
> Fix For: 0.8-incubating, 1.0-incubating
>
> Attachments: TAJO-628.patch, TAJO-628_140224_210723.patch
>
>
> Distinct aggregation requires three stages. But, the second stage can be
> scheduled to one node due to wrong counting of grouping keys.
> This patch fixes this bug. In addition, this patch fixes some trivial bugs in
> Task.java that I found during this debugging.
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