GitHub user mengxr opened a pull request:
https://github.com/apache/spark/pull/22225
[SPARK-25234][SPARKR] avoid integer overflow in parallelize
## What changes were proposed in this pull request?
`parallelize` uses integer multiplication to determine the split indices.
It might cause integer overflow.
## How was this patch tested?
unit test
Please review http://spark.apache.org/contributing.html before opening a
pull request.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/mengxr/spark SPARK-25234
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/22225.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 #22225
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commit 20f9498384ef5587970c3673c86488404ee89a54
Author: Xiangrui Meng <meng@...>
Date: 2018-08-24T18:01:14Z
add test
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