GitHub user shivaram opened a pull request:
https://github.com/apache/spark/pull/20060
[SPARK-22889][SPARKR] Set overwrite=T when install SparkR in tests
## What changes were proposed in this pull request?
Since all CRAN checks go through the same machine, if there is an older
partial download or partial install of Spark left behind the tests fail. This
PR overwrites the install files when running tests. This shouldn't affect
Jenkins as `SPARK_HOME` is set when running Jenkins tests.
## How was this patch tested?
Test manually by running `R CMD check --as-cran`
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/shivaram/spark-1 sparkr-overwrite-cran
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/20060.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 #20060
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commit 6edbd710d0b73a7c4170dbb78eb42ace5a8c73a0
Author: Shivaram Venkataraman <shivaram@...>
Date: 2017-12-23T00:27:56Z
Set overwrite=T when install SparkR in tests
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