Loghi Perinpanayagam created ZEPPELIN-4569:
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Summary: Zeppelin Ipython interpreter is not closing properly.
Key: ZEPPELIN-4569
URL: https://issues.apache.org/jira/browse/ZEPPELIN-4569
Project: Zeppelin
Issue Type: Bug
Components: zeppelin-interpreter
Affects Versions: 0.8.2
Environment: JDK 1.8.0
Apache Zeppelin 0.8.2
Reporter: Loghi Perinpanayagam
{code:java}
io.grpc.internal.SerializingExecutor run
SEVERE: Exception while executing runnable
io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1MessagesAvailable@619fd7d
java.lang.NullPointerException
at
io.grpc.stub.ClientCalls$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$1MessagesAvailable.runInContext(ClientCallImpl.java:531)
at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
The problem must be in io.grpc. Could anyone help?{code}
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