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From "Robert Joseph Evans (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-3387) A tracking URL of N/A before the app master is launched breaks oozie
Date Wed, 09 Nov 2011 15:21:51 GMT
A tracking URL of N/A before the app master is launched breaks oozie

                 Key: MAPREDUCE-3387
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3387
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: mrv2
    Affects Versions: 0.23.0, 0.24.0
            Reporter: Robert Joseph Evans
            Priority: Critical

When oozie launches a map/reduce job it retrieves the tracking URL of that job to display
in its own UI.  Previously this tracking URL did not change except when the job completed.
 Currently the URL starts out as N/A and then changes to the real URL once the AppMaster launches.
 This breaks oozie, as oozie expects to be able to get that information quickly and get back
to processing other requests.

Because the web app proxy is now available we can maintain backwards compatibility by instead
of returning N/A we can return the URL of the proxy for that application.  This relies on
the fact that the application master's UI will display the correct thing for the URI http://<host>:<port>/,
which MR and others now do.

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