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https://issues.apache.org/jira/browse/MAPREDUCE-5458?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer resolved MAPREDUCE-5458.
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Resolution: Won't Fix
> Jobhistory server (and probably others) throws HTTP 500 error if keytab fails
> -----------------------------------------------------------------------------
>
> Key: MAPREDUCE-5458
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5458
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: jobhistoryserver
> Affects Versions: 2.1.0-beta
> Reporter: Allen Wittenauer
> Priority: Major
>
> I had a situation where the job history didn't renew its kerberos credentials
> (still verifying that problem). If a user connects to the web UI at a point
> when the server can't talk to HDFS, it shows the user a 500 error rather than
> giving something meaningful.
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