[ZEPPELIN-3853] Flaky test - IPySparkInterpreterTest

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Assignee: Unassigned
• Reporter: Lee Moon Soo
• Created: 05/Nov/18 18:48
• Updated: 01/Oct/19 23:01

Description

IPySparkInterpreterTest
https://api.travis-ci.org/v3/job/446566416/log.txt

08:35:39,940  INFO org.apache.zeppelin.python.IPythonInterpreter:334 - Kill IPython Process
08:35:39,946 ERROR io.grpc.internal.SerializingExecutor:126 - Exception while executing runnable io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed@64d7d2fe
java.lang.NullPointerException
	at io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:434)
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
	at io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:678)
	at io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
	at io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
	at io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
	at io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:403)
	at io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:459)
	at io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:63)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:546)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$600(ClientCallImpl.java:467)
	at io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:584)
	at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
	at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
08:35:39,949  INFO org.apache.zeppelin.spark.NewSparkInterpreter:138 - Close SparkInterpreter
Tests run: 8, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 194.415 sec <<< FAILURE! - in org.apache.zeppelin.spark.IPySparkInterpreterTest
testIPythonAdvancedFeatures(org.apache.zeppelin.spark.IPySparkInterpreterTest)  Time elapsed: 35.429 sec  <<< ERROR!
java.lang.RuntimeException: Fail to open IPythonInterpreter
	at org.apache.zeppelin.python.IPythonInterpreter.launchIPythonKernel(IPythonInterpreter.java:309)
	at org.apache.zeppelin.python.IPythonInterpreter.open(IPythonInterpreter.java:148)
	at org.apache.zeppelin.spark.IPySparkInterpreter.open(IPySparkInterpreter.java:66)
	at org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:69)
	at org.apache.zeppelin.spark.IPySparkInterpreterTest.startInterpreter(IPySparkInterpreterTest.java:93)