[ZEPPELIN-5533] Fail to get code completion in IPython interpreter

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.10.0
• Component/s: python
• Assignee: Unassigned
• Reporter: Jeff Zhang
• Created: 21/Sep/21 11:55
• Updated: 25/Mar/22 02:22

Description

It looks like it only happens in jupyter-client=7

ERROR [2021-09-21 19:53:12,756] ({pool-2-thread-1} ProcessFunction.java[process]:47) - Internal error processing completion
io.grpc.StatusRuntimeException: UNKNOWN: Exception calling application: There is no current event loop in thread 'ThreadPoolExecutor-0_1'.
        at io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:233)
        at io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:214)
        at io.grpc.stub.ClientCalls.blockingUnaryCall(ClientCalls.java:139)
        at org.apache.zeppelin.interpreter.jupyter.proto.JupyterKernelGrpc$JupyterKernelBlockingStub.complete(JupyterKernelGrpc.java:330)
        at org.apache.zeppelin.jupyter.JupyterKernelClient.complete(JupyterKernelClient.java:296)
        at org.apache.zeppelin.jupyter.JupyterKernelInterpreter.completion(JupyterKernelInterpreter.java:347)
        at org.apache.zeppelin.interpreter.LazyOpenInterpreter.completion(LazyOpenInterpreter.java:145)
        at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer.completion(RemoteInterpreterServer.java:974)
        at org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Processor$completion.getResult(RemoteInterpreterService.java:1932)
        at org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Processor$completion.getResult(RemoteInterpreterService.java:1911)
        at org.apache.zeppelin.shaded.org.apache.thrift.ProcessFunction.process(ProcessFunction.java:38)
        at org.apache.zeppelin.shaded.org.apache.thrift.TBaseProcessor.process(TBaseProcessor.java:38)
        at org.apache.zeppelin.shaded.org.apache.thrift.server.TThreadPoolServer$WorkerProcess.run(TThreadPoolServer.java:313)
        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) 

Issue Links

• is related to: ZEPPELIN-5691 Code completion for ipython causes exception (sometimes)