I am trying to use SparkR on Zeppelin (running the HDP 2.6 Sandbox) but it is not working, and also not returning any kind of error message. For example, using the included example notebook "R (SparkR)" and running the first simple command does nothing. It runs for a few seconds and then sets the section status to "ERROR", but does not return an error message.
@Karl, have you tried running SparkR directly, without Zeppelin? That might help identify whether it's a Zeppelin or Spark(R) issue. Here's documentation for running SparkR with R from the command line: