Could you check the log again ? There should be another exception above the exception you pasted. Most likely SparkContext is failed to create.
Best Regard, Jeff Zhang From: Terry Healy <the...@bnl.gov<mailto:the...@bnl.gov>> Reply-To: "users@zeppelin.apache.org<mailto:users@zeppelin.apache.org>" <users@zeppelin.apache.org<mailto:users@zeppelin.apache.org>> Date: Friday, October 6, 2017 at 10:35 PM To: "users@zeppelin.apache.org<mailto:users@zeppelin.apache.org>" <users@zeppelin.apache.org<mailto:users@zeppelin.apache.org>> Subject: Trying to 0.7.3 running with Spark Using Zeppelin 0.7.3, Spark 2.1.0-mapr-1703 / Scala 2.11.8 I had previously run the demo and successfully set up MongoDB and JDBC interpreter for Impala under V0.7.2. Since I have upgraded to 0.7.3, everything broke. I am down to to complete re-install (several, in fact) and get a response like below for most everything I try. (Focusing just on %spark for now) apparently have something very basic wrong, but I'll be damned if I can find it. The same example works fine in spark-shell. Any suggestions for a new guy very much appreciated. I found [ZEPPELIN-2475] and<https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwjEtK7_jdzWAhXC4SYKHR-oAtAQFggrMAA&url=https%3A%2F%2Fissues.apache.org%2Fjira%2Fbrowse%2FZEPPELIN-2475&usg=AOvVaw2-wxGTzLNZgYSUQZFdGoyj> [ZEPPELIN-1560] which seem to be the same, or similar, but I did not understand what to change where<https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0ahUKEwjEtK7_jdzWAhXC4SYKHR-oAtAQFggyMAE&url=https%3A%2F%2Fissues.apache.org%2Fjira%2Fbrowse%2FZEPPELIN-1560&usg=AOvVaw1HMgQXqJ1pSufx80ablv0y> This is from "Zeppelin Tutorial/Basic Features (Spark)". java.lang.NullPointerException at org.apache.zeppelin.spark.Utils.invokeMethod(Utils.java:38) at org.apache.zeppelin.spark.Utils.invokeMethod(Utils.java:33) at org.apache.zeppelin.spark.SparkInterpreter.createSparkContext_2(SparkInterpreter.java:398) at org.apache.zeppelin.spark.SparkInterpreter.createSparkContext(SparkInterpreter.java:387) at org.apache.zeppelin.spark.SparkInterpreter.getSparkContext(SparkInterpreter.java:146) at org.apache.zeppelin.spark.SparkInterpreter.open(SparkInterpreter.java:843) at org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:70) at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:491) at org.apache.zeppelin.scheduler.Job.run(Job.java:175) at org.apache.zeppelin.scheduler.FIFOScheduler$1.run(FIFOScheduler.java:139) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
