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From "Arun C Murthy (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3720) Command line listJobs should not visit each AM
Date Fri, 27 Jan 2012 08:47:39 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3720?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated MAPREDUCE-3720:
-------------------------------------

      Resolution: Fixed
    Release Note: 
Changed bin/mapred job -list to not print job-specific information not available at RM.

Very minor incompatibility in cmd-line output, inevitable due to MRv2 architecture.
    Hadoop Flags: Incompatible change,Reviewed
          Status: Resolved  (was: Patch Available)

I just committed this. Thanks Vinod!
                
> Command line listJobs should not visit each AM
> ----------------------------------------------
>
>                 Key: MAPREDUCE-3720
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3720
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client, mrv2
>    Affects Versions: 0.23.0
>            Reporter: Vinod Kumar Vavilapalli
>            Assignee: Vinod Kumar Vavilapalli
>             Fix For: 0.23.1
>
>         Attachments: MAPREDUCE-3720-20120124.txt
>
>
> When the RM has a large number of jobs, {{bin/mapred job -list}} takes a long time as
it visits each AM to get information like num-maps, num-reduces etc.
> We should move all per-AM information to {{bin/mapred job -status}} and keep the list
just a list.

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