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https://issues.apache.org/jira/browse/TEZ-3894?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16358844#comment-16358844
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Kuhu Shukla commented on TEZ-3894:
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Precommit Output:
{noformat}
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12909299/TEZ-3894.001.patch
against master revision 96c988c.
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 3 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:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 3.0.1) 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/2725//testReport/
Console output: https://builds.apache.org/job/PreCommit-TEZ-Build/2725//console
{noformat}
> Tez intermediate outputs implicitly rely on permissive umask for shuffle
> ------------------------------------------------------------------------
>
> Key: TEZ-3894
> URL: https://issues.apache.org/jira/browse/TEZ-3894
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Priority: Major
> Attachments: TEZ-3894.001.patch
>
>
> Tez does not explicitly set the permissions of intermediate output files for
> shuffle. In a secure cluster the shuffle service is running as a different
> user than the task, so the output files require group readability in order to
> serve up the data during the shuffle phase. If the umask is too restrictive
> (e.g.: 077) then the task's file.out and file.out.index permissions can be
> too restrictive to allow the shuffle handler to access them.
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