just try to understand the comment in the code:// Some case, 
scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call throws an NPE

what are the "Some case", it sounds like Zeppelin developers are not sure how 
it happened and how to prevent it?
I am trying to make a strong case for my company to switch from other notebook 
application to Zeppelin, Zeppelin looks good and only this issue concerns me. 
I'm looking forward for any insights, thanks.On Monday, June 26, 2017, 11:56:45 
AM PDT, Serega Sheypak <serega.shey...@gmail.com> wrote:

Hi, I have more or less the same symptom

if (Utils.isScala2_10()) {
  binder = (Map<String, Object>) getValue("_binder");
} else {
  binder = (Map<String, Object>) getLastObject();
}
binder.put("sc", sc); // EXCEPTION HERE
java.lang.NullPointerException at 
org.apache.zeppelin.spark.SparkInterpreter.open(SparkInterpreter.java:887) at 
org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:70)
 at 
org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:489)
 at org.apache.zeppelin.scheduler.Job.run(Job.java:181) at 
org.apache.zeppelin.scheduler.FIFOScheduler$1.run(FIFOScheduler.java:139) at 
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at 
java.util.concurrent.FutureTask.run(FutureTask.java:262) at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
 at 
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
 at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
at java.lang.Thread.run(Thread.java:745)

I'm going to check this one 
stuff:https://stackoverflow.com/questions/43289067/getting-nullpointerexception-when-running-spark-code-in-zeppelin-0-7-1


2017-06-26 20:41 GMT+02:00 Richard Xin <richardxin...@yahoo.com>:

Anyone?


On Thursday, June 22, 2017, 3:00:01 PM PDT, Richard Xin 
<richardxin...@yahoo.com> wrote:

apache/zeppelin


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apache/zeppelin

zeppelin - Mirror of Apache Zeppelin
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in the code I see // Some case, scala.tools.nsc.interpreter. 
IMain$ReadEvalPrint.call throws an NPE

We had issues that Zeppelin note errored out immediately without any hint 
messages, and we are seeing this NPE in the spark_interpreter log (Zeppelin 
0.7.1 on AWS EMR cluster). can someone explain what's the likely cause for this 
error and how to prevent it from happening again?
Thanks,


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