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https://issues.apache.org/jira/browse/MAPREDUCE-1354?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amareshwari Sriramadasu updated MAPREDUCE-1354:
-----------------------------------------------

    Status: Open  (was: Patch Available)

Patch looks fine.
Canceling patch to submit for hudson, as trunk compiles now.

> Incremental enhancements to the JobTracker for better scalability
> -----------------------------------------------------------------
>
>                 Key: MAPREDUCE-1354
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1354
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: jobtracker
>            Reporter: Devaraj Das
>            Assignee: Dick King
>            Priority: Critical
>         Attachments: mapreduce-1354--2010-03-10.patch, 
> mapreduce-1354--2010-05-13.patch, MAPREDUCE-1354_yhadoop20.patch, 
> MAPREDUCE-1354_yhadoop20.patch, MAPREDUCE-1354_yhadoop20.patch, 
> MAPREDUCE-1354_yhadoop20.patch, MAPREDUCE-1354_yhadoop20.patch, 
> MAPREDUCE-1354_yhadoop20.patch, MAPREDUCE-1354_yhadoop20.patch, 
> mr-1354-y20.patch
>
>
> It'd be nice to have the JobTracker object not be locked while accessing the 
> HDFS for reading the jobconf file and while writing the jobinfo file in the 
> submitJob method. We should see if we can avoid taking the lock altogether.

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