GitHub user ilganeli opened a pull request:
https://github.com/apache/spark/pull/5074
[SPARK-5750][SPARK-3441][SPARK-5836] Added documentation explaining shuffle
I've updated the Spark Programming Guide to add a section on the shuffle
operation providing some background on what it does. I've also addressed some
of its performance impacts.
I've included documentation to address the following issues:
https://issues.apache.org/jira/browse/SPARK-5836
https://issues.apache.org/jira/browse/SPARK-3441
https://issues.apache.org/jira/browse/SPARK-5750
https://issues.apache.org/jira/browse/SPARK-4227 is related but can be
addressed in a separate PR since it involves updates to the Spark Configuration
Guide.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/ilganeli/spark SPARK-5750
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/5074.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #5074
----
commit 75ef67bc6bbde8da6d528f9135bfabd3738f3903
Author: Ilya Ganelin <[email protected]>
Date: 2015-03-17T19:40:11Z
[SPARK-5750][SPARK-3441][SPARK-5836] Added documentation explaining the
shuffle operation and included errata from a number of other JIRAs
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