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From "Robert Joseph Evans (Assigned) (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (MAPREDUCE-3387) A tracking URL of N/A before the app master is launched breaks oozie
Date Wed, 09 Nov 2011 19:29:51 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3387?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Robert Joseph Evans reassigned MAPREDUCE-3387:

    Assignee: Robert Joseph Evans
> 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
>            Assignee: 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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