[jira] Commented: (MAPREDUCE-1473) Sqoop should allow users to control export parallelism

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12832165#action_12832165 ] 

Hadoop QA commented on MAPREDUCE-1473:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12435396/MAPREDUCE-1473.patch
  against trunk revision 908321.

    +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 core tests.  The patch failed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h3.grid.sp2.yahoo.net/312/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h3.grid.sp2.yahoo.net/312/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h3.grid.sp2.yahoo.net/312/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h3.grid.sp2.yahoo.net/312/console

This message is automatically generated.

> Sqoop should allow users to control export parallelism
> ------------------------------------------------------
>
>                 Key: MAPREDUCE-1473
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1473
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: contrib/sqoop
>            Reporter: Aaron Kimball
>            Assignee: Aaron Kimball
>         Attachments: MAPREDUCE-1473.patch
>
>
> Sqoop uses MapReduce jobs to export files back to a table in the database. The degree of parallelism is controlled by the number of splits; i.e., the number of input files used. The bottleneck in the system, though, is likely to be the database itself.
> Users should have the ability to tune the number of parallel exporters being used to a degree appropriate to their database deployment.

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