GitHub user rxin opened a pull request:
https://github.com/apache/spark/pull/2178
[SPARK-3280] Made sort-based shuffle the default implementation
Sort-based shuffle has lower memory usage and seems to outperform
hash-based in almost all of our testing.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/rxin/spark sort-shuffle
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/2178.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 #2178
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commit bee001e28d65c4fd8326b58c08bffcb91e27842b
Author: Reynold Xin <[email protected]>
Date: 2014-08-28T07:57:38Z
[SPARK-3280] Made sort-based shuffle the default implementation
commit 1445ef24b680ad746fd1660bb1ec1ff36ccce634
Author: Reynold Xin <[email protected]>
Date: 2014-08-28T07:58:34Z
Fixed a comment typo.
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