[jira] [Created] (ZEPPELIN-2332) HeliumApplicationFactoryTest in Zeppelin Zengine hangs

["Pravin Dsilva (JIRA)" <ji...@apache.org>]

Pravin Dsilva created ZEPPELIN-2332:
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             Summary: HeliumApplicationFactoryTest in Zeppelin Zengine hangs 
                 Key: ZEPPELIN-2332
                 URL: https://issues.apache.org/jira/browse/ZEPPELIN-2332
             Project: Zeppelin
          Issue Type: Bug
          Components: zeppelin-zengine
    Affects Versions: 0.8.0
         Environment: Ubuntu 14.04.5 
x86, ppc64le
            Reporter: Pravin Dsilva


On the Master branch of Zeppelin, HeliumApplicationFactoryTest test gets hanged indefinitely at the following point:
{code}
09:51:34,664  INFO org.apache.zeppelin.interpreter.remote.RemoteInterpreter:552 - Push local angular object registry from ZeppelinServer to remote interpreter group 2CESSVJH8:shared_process
09:51:34,770 ERROR org.apache.zeppelin.interpreter.remote.RemoteInterpreterEventPoller:263 - Can't handle event RemoteInterpreterEvent(type:OUTPUT_UPDATE_ALL, data:{"messages":[],"noteId":"2CDNWC2XB","paragraphId":"20170330-095133_466661605"})
java.lang.NullPointerException
	at org.apache.zeppelin.interpreter.remote.RemoteInterpreterEventPoller.run(RemoteInterpreterEventPoller.java:194)
09:51:34,924  INFO org.apache.zeppelin.interpreter.InterpreterGroup:185 - Close interpreter group 2CESSVJH8:shared_process for session: shared_session
09:51:34,968  INFO org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess:123 - shutdown interpreter process
09:51:35,927 ERROR org.apache.zeppelin.interpreter.remote.AppendOutputRunner:68 - Wait for OutputBuffer queue interrupted: null
09:51:37,449  INFO org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess:133 - Exception in RemoteInterpreterProcess while synchronized dereference, can safely ignore exception while client.shutdown() may terminates remote process
09:51:37,473  INFO org.apache.zeppelin.interpreter.remote.RemoteInterpreterManagedProcess:186 - Interpreter process exited 0
{code}

Commands used for building:
{code}
 mvn clean install -Pspark-1.6  -Ppyspark -Phadoop-2.7 -DskipTests
{code}

For running the tests:
{code}
mvn  test -Pspark-1.6  -Ppyspark -Phadoop-2.7
{code}

I have attached the complete console log. There isn't any surefire report generated for additional debug logs.



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