Github user Leemoonsoo commented on the issue:
https://github.com/apache/zeppelin/pull/1534
@agoodm
I think placement of common python lib and problem printing output when
`close=False` can be handled in the separate issues. Do you mind create issues?
I have tested last commit and found that if i run %pyspark paragraph when
spark interpreter is not initialized (i.e. right after Zeppelin start or spark
interpreter restart), i'm seeing following error.
```
ERROR [2016-11-04 11:32:09,138] ({pool-1-thread-2}
PySparkInterpreter.java[open]:168) - Error
java.lang.NullPointerException
at
org.apache.zeppelin.spark.PySparkInterpreter.createGatewayServerAndStartScript(PySparkInterpreter.java:197)
at
org.apache.zeppelin.spark.PySparkInterpreter.open(PySparkInterpreter.java:166)
at
org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:69)
at
org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer.open(RemoteInterpreterServer.java:250)
at
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Processor$open.getResult(RemoteInterpreterService.java:1621)
at
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Processor$open.getResult(RemoteInterpreterService.java:1606)
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
at
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:285)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
ERROR [2016-11-04 11:32:09,140] ({pool-1-thread-2}
TThreadPoolServer.java[run]:296) - Error occurred during processing of message.
org.apache.zeppelin.interpreter.InterpreterException:
java.lang.NullPointerException
at
org.apache.zeppelin.spark.PySparkInterpreter.open(PySparkInterpreter.java:169)
at
org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:69)
at
org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer.open(RemoteInterpreterServer.java:250)
at
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Processor$open.getResult(RemoteInterpreterService.java:1621)
at
org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Processor$open.getResult(RemoteInterpreterService.java:1606)
at org.apache.thrift.ProcessFunction.process(ProcessFunction.java:39)
at org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:39)
at
org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:285)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
at
org.apache.zeppelin.spark.PySparkInterpreter.createGatewayServerAndStartScript(PySparkInterpreter.java:197)
at
org.apache.zeppelin.spark.PySparkInterpreter.open(PySparkInterpreter.java:166)
... 10 more
```
Do you see the same error?
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