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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4346) Adding a refined version of JobTracker.getAllJobs() and exposing through the JobClient
Date Mon, 25 Jun 2012 16:28:44 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4346?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13400587#comment-13400587
] 

Alejandro Abdelnur commented on MAPREDUCE-4346:
-----------------------------------------------

The JobStatus.setRetired(..) method should be package private, as it does not make sense for
a client to set that value.

Please add a comment in the new method (where you are catching the exception) to state that
this is done to ensure client API compatibility within this release.

What is the intended logic between status & retired? I would have assume it is an AND
but it seems that retired TRUE trumps status (both in JT and client filtering logic).


                
> 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
>
>
> 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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