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https://issues.apache.org/jira/browse/TEZ-1942?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14278385#comment-14278385
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Hadoop QA commented on TEZ-1942:
--------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment
  http://issues.apache.org/jira/secure/attachment/12692464/TEZ-1942.2.patch
  against master revision 61bb0f8.

    {color:green}+1 @author{color}.  The patch does not contain any @author 
tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new 
or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the 
total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:red}-1 findbugs{color}.  The patch appears to introduce 260 new 
Findbugs (version 2.0.3) 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 .

Test results: https://builds.apache.org/job/PreCommit-TEZ-Build/30//testReport/
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-TEZ-Build/30//artifact/patchprocess/newPatchFindbugsWarningstez-dag.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-TEZ-Build/30//artifact/patchprocess/newPatchFindbugsWarningstez-mapreduce.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-TEZ-Build/30//artifact/patchprocess/newPatchFindbugsWarningstez-examples.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-TEZ-Build/30//artifact/patchprocess/newPatchFindbugsWarningstez-runtime-internals.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-TEZ-Build/30//artifact/patchprocess/newPatchFindbugsWarningstez-tests.html
Console output: https://builds.apache.org/job/PreCommit-TEZ-Build/30//console

This message is automatically generated.

> Number of tasks show in Tez UI with auto-reduce parallelism is misleading
> -------------------------------------------------------------------------
>
>                 Key: TEZ-1942
>                 URL: https://issues.apache.org/jira/browse/TEZ-1942
>             Project: Apache Tez
>          Issue Type: Bug
>    Affects Versions: 0.5.2
>            Reporter: Rajesh Balamohan
>            Assignee: Prakash Ramachandran
>         Attachments: Screen Shot 2015-01-14 at 9.18.21 AM.png, Screen Shot 
> 2015-01-14 at 9.18.54 AM.png, TEZ-1942.1.patch, TEZ-1942.2.patch, 
> output.json, result_with_direct_vertex.png, result_with_primary_filter.png
>
>
> Ran a simple hive query (with tez) and "--hiveconf 
> hive.tez.auto.reducer.parallelism=true" .  This internally turns on tez's 
> auto reduce parallelism.  
> - Job started off with 1009 reduce tasks
> - Tez reduces the number of reducers to 253
> - Job completes successfully, but TEZ UI shows 1009 as the number of reducers 
> (and 253 tasks as successful tasks).  This can be a little misleading.
> I will attach the screenshots soon.



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