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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-337) RM handles killed application tracking URL poorly
Date Fri, 11 Jan 2013 20:46:12 GMT
Jason Lowe created YARN-337:
-------------------------------

             Summary: 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: 0.23.5, 2.0.2-alpha
            Reporter: Jason Lowe


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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