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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-337) RM handles killed application tracking URL poorly
Date Wed, 14 Aug 2013 14:26:54 GMT

    [ https://issues.apache.org/jira/browse/YARN-337?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13739713#comment-13739713

Hudson commented on YARN-337:

SUCCESS: Integrated in Hadoop-trunk-Commit #4257 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/4257/])
YARN-337. RM handles killed application tracking URL poorly. Contributed by Jason Lowe (jlowe:
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/RMAppAttemptImpl.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/TestRMAppAttemptTransitions.java

> 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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