GitHub user felixcheung opened a pull request:
https://github.com/apache/spark/pull/16596
[SPARK-19237][SPARKR] R should check for java when installed as a package
## What changes were proposed in this pull request?
When SparkR is installed as a R package there might not be any java runtime.
If it is not there spark-submit will just hang, hanging the R IDE/shell.
## How was this patch tested?
manually
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/felixcheung/spark rcheckjava
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16596.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 #16596
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commit e6bc65dec702c3358c9d730c0fe6c2be305a04ce
Author: Felix Cheung <[email protected]>
Date: 2017-01-16T07:51:46Z
check for java
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