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From "Bochun Bai (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1517) streaming should support running on background
Date Mon, 27 Sep 2010 07:08:35 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12915219#action_12915219
] 

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

test-patch.sh on trunk Revision: 997967

+1 overall.  

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

    +1 tests included.  The patch appears to include 6 new or modified tests.

    +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-with-test-with-license.patch, contrib-streaming-background-with-test-with-license2.patch,
contrib-streaming-background-with-test.patch, contrib-streaming-background.patch, contrib-streaming-background.patch,
hadoop-mapred-patch-logs.tar.gz
>
>
> 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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