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Posted to mapreduce-issues@hadoop.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2012/07/12 22:13:35 UTC
[jira] [Commented] (MAPREDUCE-4283) Display tail of aggregated logs
by default
[ https://issues.apache.org/jira/browse/MAPREDUCE-4283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13413146#comment-13413146 ]
Jason Lowe commented on MAPREDUCE-4283:
---------------------------------------
Pinging for review, would like to see this feature integrated soon as we keep running into large aggregated logs and have no good way to view a portion of them without downloading the entire log.
> 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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