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https://issues.apache.org/jira/browse/TAJO-628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13910230#comment-13910230
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Tajo QA commented on TAJO-628:
------------------------------
{color:red}*-1 overall.*{color} Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12630647/TAJO-628.patch
against master revision 9cce80c.
{color:green}+1 @author.{color} The patch does not contain any @author
tags.
{color:red}-1 tests included.{color} The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{color:green}+1 javac.{color} The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc.{color} The applied patch does not increase the
total number of javadoc warnings.
{color:green}+1 checkstyle.{color} The patch generated 0 code style errors.
{color:red}-1 findbugs.{color} The patch appears to introduce 178 new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit.{color} The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests.{color} The patch passed unit tests in
tajo-core/tajo-core-backend.
Test results:
https://builds.apache.org/job/PreCommit-TAJO-Build/157//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-TAJO-Build/157//artifact/incubator-tajo/patchprocess/newPatchFindbugsWarningstajo-core-backend.html
Console output: https://builds.apache.org/job/PreCommit-TAJO-Build/157//console
This message is automatically generated.
> 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
> Attachments: TAJO-628.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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