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Posted to yarn-dev@hadoop.apache.org by "Todd Lipcon (JIRA)" <ji...@apache.org> on 2014/09/03 02:23:52 UTC

[jira] [Created] (YARN-2490) Bad links to jobhistory server

Todd Lipcon created YARN-2490:
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             Summary: Bad links to jobhistory server
                 Key: YARN-2490
                 URL: https://issues.apache.org/jira/browse/YARN-2490
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Todd Lipcon


If you run an MR/YARN cluster without configuring the jobhistory URL, you get some really bad usability:
- your jobs still produce JobHistory links
- the job history link goes to whichever NM the AM happened to run on

Even if you run the job history server on the same server as the RM, your links will be incorrect unless you've explicitly configured its hostname.

If JobHistory isn't running, we shouldn't produce URLs (or we should by default embed JobHistory inside the RM). If we require a hostname beyond 0.0.0.0, we should refuse to start the JH server with 0.0.0.0 as its configuration.



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