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https://issues.apache.org/jira/browse/YARN-303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13683252#comment-13683252
]
Hadoop QA commented on YARN-303:
--------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12587795/YARN-303.patch
against trunk revision .
{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}. The javadoc tool did not generate any
warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any 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
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-YARN-Build/1239//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/1239//console
This message is automatically generated.
> ProcfsBasedProcessTree throws ConcurrentModificationException
> -------------------------------------------------------------
>
> Key: YARN-303
> URL: https://issues.apache.org/jira/browse/YARN-303
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.0.2-alpha, 3.0.0, 2.0.1-alpha
> Reporter: Devaraj K
> Assignee: Devaraj K
> Attachments: YARN-303.patch
>
>
> {code:xml}
> Error: java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
> at java.util.HashMap$EntryIterator.next(HashMap.java:834)
> at java.util.HashMap$EntryIterator.next(HashMap.java:832)
> at
> org.apache.hadoop.yarn.util.ProcfsBasedProcessTree.getProcessTree(ProcfsBasedProcessTree.java:208)
> at
> org.apache.hadoop.yarn.util.LinuxResourceCalculatorPlugin.getProcResourceValues(LinuxResourceCalculatorPlugin.java:406)
> at
> org.apache.hadoop.mapred.Task.getCurrentProcResourceValues(Task.java:810)
> at
> org.apache.hadoop.mapred.BlockMapOutputBuffer.sortAndSpill(BlockMapOutputBuffer.java:235)
> at
> org.apache.hadoop.mapred.BlockMapOutputBuffer.flush(BlockMapOutputBuffer.java:322)
> at
> org.apache.hadoop.mapred.MapTask$NewOutputCollector.close(MapTask.java:677)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:745)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:333)
> at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:154)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1232)
> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:149)
> {code}
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