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From viirya <>
Subject [GitHub] spark pull request: [SPARK-7277][SQL] Show warning message if the ...
Date Thu, 30 Apr 2015 18:09:33 GMT
GitHub user viirya opened a pull request:

    [SPARK-7277][SQL] Show warning message if the property mapred.reduce.tasks is set to -1

    As automatically determining the number of reducers is not supported (`mapred.reduce.tasks`
is set to `-1`), we should show warning message to users.

You can merge this pull request into a Git repository by running:

    $ git pull no_neg_reduce_tasks

Alternatively you can review and apply these changes as the patch at:

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #5811
commit 68a1c7074e959d3bec595747194606a7c478c5d1
Author: Liang-Chi Hsieh <>
Date:   2015-04-30T17:56:47Z

    Show warning message if mapred.reduce.tasks is set to -1.


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