Github user zjffdu commented on the issue:
https://github.com/apache/spark/pull/14639
@shivaram @felixcheung @sun-rui My previous commit didn't resolve the
issue. It succeeded just due to it already download spark in cache dir.
I push another commit to fix the issue. Overall, this PR resolve 3 things.
* Cache dir issue in mac os x
* Don't download spark when it is cluster mode. The key thing is that we
should pass SparkConf from JVM to R, otherwise `master` and `deployMode` in
`sparkR.session` will always be empty.
* `appName` should be empty by default, otherwise we can not override in
spark-submit throught arguments `--name`
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