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From "Ahmed Radwan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4346) Adding a refined version of JobTracker.getAllJobs() and exposing through the JobClient
Date Wed, 27 Jun 2012 06:53:44 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13401997#comment-13401997
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Ahmed Radwan commented on MAPREDUCE-4346:
-----------------------------------------

Thanks Arun and Tucu for the comments!

Tucu, I have modified the semantics, so the retired flag doesn't override the status filter.
Also updated the newly added tests to reflect that.

I have replaced the inner loop by the HashSet per Arun's suggestion too.
                
> Adding a refined version of JobTracker.getAllJobs() and exposing through the JobClient
> --------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4346
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4346
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv1
>            Reporter: Ahmed Radwan
>            Assignee: Ahmed Radwan
>         Attachments: MAPREDUCE-4346.patch, MAPREDUCE-4346_rev2.patch, MAPREDUCE-4346_rev3.patch
>
>
> The current implementation for JobTracker.getAllJobs() returns all submitted jobs in
any state, in addition to retired jobs. This list can be long and represents an unneeded overhead
especially in the case of clients only interested in jobs in specific state(s). 
> It is beneficial to include a refined version where only jobs having specific statuses
are returned and retired jobs are optional to include. 
> I'll be uploading an initial patch momentarily.

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