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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-337) RM handles killed application tracking URL poorly
Date Thu, 08 Aug 2013 15:43:48 GMT

    [ https://issues.apache.org/jira/browse/YARN-337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13733612#comment-13733612

Hadoop QA commented on YARN-337:

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  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-server/hadoop-yarn-server-resourcemanager.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/1675//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/1675//console

This message is automatically generated.
> RM handles killed application tracking URL poorly
> -------------------------------------------------
>                 Key: YARN-337
>                 URL: https://issues.apache.org/jira/browse/YARN-337
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.0.2-alpha, 0.23.5
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>              Labels: usability
>         Attachments: YARN-337.patch
> When the ResourceManager kills an application, it leaves the proxy URL redirecting to
the original tracking URL for the application even though the ApplicationMaster is no longer
there to service it.  It should redirect it somewhere more useful, like the RM's web page
for the application, where the user can find that the application was killed and links to
the AM logs.
> In addition, sometimes the AM during teardown from the kill can attempt to unregister
and provide an updated tracking URL, but unfortunately the RM has "forgotten" the AM due to
the kill and refuses to process the unregistration.  Instead it logs:
> {noformat}
> 2013-01-09 17:37:49,671 [IPC Server handler 2 on 8030] ERROR
> org.apache.hadoop.yarn.server.resourcemanager.ApplicationMasterService: AppAttemptId
doesnt exist in cache appattempt_1357575694478_28614_000001
> {noformat}
> It should go ahead and process the unregistration to update the tracking URL since the
application offered it.

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