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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3389) Two attempts might operate on same data structures concurrently
Date Mon, 23 Mar 2015 16:51:11 GMT

    [ https://issues.apache.org/jira/browse/YARN-3389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14376180#comment-14376180
] 

Hadoop QA commented on YARN-3389:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12706549/YARN-3389.01.patch
  against trunk revision 0b9f12c.

    {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}.  There were no new javadoc 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
2.0.3) warnings.

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

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager:

                  org.apache.hadoop.yarn.server.resourcemanager.security.TestRMDelegationTokens
                  org.apache.hadoop.yarn.server.resourcemanager.TestRM

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/7075//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/7075//console

This message is automatically generated.

> Two attempts might operate on same data structures concurrently
> ---------------------------------------------------------------
>
>                 Key: YARN-3389
>                 URL: https://issues.apache.org/jira/browse/YARN-3389
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.6.0
>            Reporter: Jun Gong
>            Assignee: Jun Gong
>         Attachments: YARN-3389.01.patch
>
>
> In AttemptFailedTransition, the new attempt will get state('justFinishedContainers' and
'finishedContainersSentToAM') reference from the failed attempt. Then the two attempts might
operate on these two variables concurrently, e.g. they might update 'justFinishedContainers'
concurrently when they are both handling CONTAINER_FINISHED event.



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