GitHub user mengxr opened a pull request:
https://github.com/apache/spark/pull/8182
[SPARK-9954] [MLLIB] use first 64 nonzeros to compute Vector.hashCode
This could help reduce hash collisions, e.g., in `RDD[Vector].repartition`.
@jkbradley
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mengxr/spark SPARK-9954
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/8182.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 #8182
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commit 25681f0b13c87e267aeedb70adea96809144db84
Author: Xiangrui Meng <[email protected]>
Date: 2015-08-13T23:41:31Z
use first 64 nonzeros to compute Vector.hashCode
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