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From "Bochun Bai (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1517) streaming should support running on background
Date Fri, 17 Sep 2010 06:09:34 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12910472#action_12910472
] 

Bochun Bai commented on MAPREDUCE-1517:
---------------------------------------

test-patch report: 

-1 overall.  

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 system tests framework.  The patch passed system tests framework compile.



> streaming should support running on background
> ----------------------------------------------
>
>                 Key: MAPREDUCE-1517
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1517
>             Project: Hadoop Map/Reduce
>          Issue Type: New Feature
>          Components: contrib/streaming
>            Reporter: Bochun Bai
>         Attachments: contrib-streaming-background.patch, contrib-streaming-background.patch
>
>
> StreamJob submit the job and use a while loop monitor the progress.
> I prefer it running on background.
> Just add "&" at the end of command is a alternative solution, but it keeps a java
process on client machine.
> When submit hundreds jobs at the same time, the client machine is overloaded.
> Adding a -background option to StreamJob, tell it only submit and don't monitor the progress.

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