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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4283) Display tail of aggregated logs by default
Date Tue, 17 Jul 2012 19:17:35 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4283?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13416502#comment-13416502
] 

Hudson commented on MAPREDUCE-4283:
-----------------------------------

Integrated in Hadoop-Common-trunk-Commit #2489 (See [https://builds.apache.org/job/Hadoop-Common-trunk-Commit/2489/])
    MAPREDUCE-4283. Display tail of aggregated logs by default (Jason Lowe via bobby) (Revision
1362608)

     Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1362608
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/main/java/org/apache/hadoop/mapreduce/v2/hs/webapp/HsWebApp.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-hs/src/test/java/org/apache/hadoop/mapreduce/v2/hs/webapp/TestHSWebApp.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/logaggregation/AggregatedLogFormat.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/webapp/log/AggregatedLogsBlock.java

                
> 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, 2.1.0-alpha
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>             Fix For: 0.23.3, 3.0.0, 2.2.0-alpha
>
>         Attachments: MAPREDUCE-4283.patch, MAPREDUCE-4283.patch, MAPREDUCE-4283.patch,
MAPREDUCE-4283.patch, MAPREDUCE-4283.patch, 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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