GitHub user felixcheung opened a pull request:
https://github.com/apache/spark/pull/16077
[SPARK-18643][SPARKR] SparkR hangs at session start when installed as a
package without Spark
## What changes were proposed in this pull request?
If SparkR is running as a package and it has previously downloaded Spark
Jar it should be able to run as before without having to set SPARK_HOME.
Basically with this bug the auto install Spark will only work in the first
session.
This seems to be a regression on the earlier behavior.
Fix is to always try to install or check for the cached Spark if running in
an interactive session.
As discussed before, we should probably only install Spark iff running in
an interactive session (R shell, RStudio etc)
## 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 rsessioninteractive
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/16077.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 #16077
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commit 866727d775c45bc8f2f6891ab685f3b6e20109b3
Author: Felix Cheung <[email protected]>
Date: 2016-11-30T06:16:54Z
install or check for cached installation if interactive
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