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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4283) Display tail of aggregated logs by default
Date Tue, 26 Jun 2012 16:28:48 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4283?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason Lowe updated MAPREDUCE-4283:
----------------------------------

            Assignee: Jason Lowe
    Target Version/s: 0.23.3, 2.0.1-alpha
              Status: Patch Available  (was: Open)
    
> Display tail of aggregated logs by default
> ------------------------------------------
>
>                 Key: MAPREDUCE-4283
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4283
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: jobhistoryserver, mrv2
>    Affects Versions: 0.23.3, 2.0.1-alpha
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>         Attachments: MAPREDUCE-4283.patch
>
>
> Similar to the manner in which the nodemanager webUI displays container logs, it would
be very useful if the historyserver showed the trailing 4K or so of the aggregated logs with
a link to see the full log.
> When debugging issues the relevant errors are usually at the end of the log, so showing
just the last few K can enable quick diagnosis without waiting for what can be many megabytes
of log data to download. 

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