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From "Amareshwari Sriramadasu (JIRA)" <j...@apache.org>
Subject [jira] Updated: (MAPREDUCE-291) Optionally a separate daemon should serve JobHistory
Date Fri, 07 May 2010 04:13:54 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-291?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amareshwari Sriramadasu updated MAPREDUCE-291:
----------------------------------------------

    Component/s: jobtracker

> Optionally a separate daemon should serve JobHistory
> ----------------------------------------------------
>
>                 Key: MAPREDUCE-291
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-291
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: jobtracker
>            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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