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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5083) Optionally a separate daemon should serve JobHistory
Date Tue, 24 Feb 2009 11:38:01 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5083?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amar Kamat updated HADOOP-5083:
-------------------------------

    Attachment: HADOOP-5083-v1.11.11.patch

Result of _test-patch_ :
{code}
[exec] -1 overall.  
     [exec] 
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec] 
     [exec]     +1 tests included.  The patch appears to include 14 new or modified tests.
     [exec] 
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec] 
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler
warnings.
     [exec] 
     [exec]     -1 findbugs.  The patch appears to introduce 2 new Findbugs warnings.
     [exec] 
     [exec]     +1 Eclipse classpath. The patch retains Eclipse classpath integrity.
     [exec] 
     [exec]     +1 release audit.  The applied patch does not increase the total number of
release audit warnings.
{code}

> Optionally a separate daemon should serve JobHistory
> ----------------------------------------------------
>
>                 Key: HADOOP-5083
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5083
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: Arun C Murthy
>            Assignee: Amar Kamat
>         Attachments: HADOOP-5083-v1.11.11.patch, HADOOP-5083-v1.11.4.patch, HADOOP-5083-v1.11.5.patch,
HADOOP-5083-v1.11.9.patch, HADOOP-5083-v1.2.patch, HADOOP-5083-v1.9.4.patch, HADOOP-5083-v1.9.patch
>
>
> Currently the JobTracker serves the JobHistory to end-users off files local-disk/hdfs.
While running very large clusters with a large user-base might result in lots of traffic for
job-history which needlessly taxes the JobTracker. The proposal is to have an optional daemon
which handles serving of job-history requests.

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