oap 报错：io.grpc.StatusRuntimeException: CANCELLED: call already cancelled

[arthron]

Please answer these questions before submitting your issue.

• Why do you submit this issue?
• Question or discussion
• Bug
• Requirement
• Feature or performance improvement

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Question

• What do you want to know?
  agent每次发送数据时，oap日志打印
  Oct 21, 2019 3:49:07 PM io.grpc.internal.SerializingExecutor run
  SEVERE: Exception while executing runnable io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1Closed@2a7b3712
  io.grpc.StatusRuntimeException: CANCELLED: call already cancelled
  at io.grpc.Status.asRuntimeException(Status.java:517)
  at io.grpc.stub.ServerCalls$ServerCallStreamObserverImpl.onCompleted(ServerCalls.java:356)
  at org.apache.skywalking.oap.server.receiver.trace.provider.handler.v6.grpc.TraceSegmentReportServiceHandler$1.onError(TraceSegmentReportServiceHandler.java:65)
  at io.grpc.stub.ServerCalls$StreamingServerCallHandler$StreamingServerCallListener.onCancel(ServerCalls.java:269)
  at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.closed(ServerCallImpl.java:293)
  at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1Closed.runInContext(ServerImpl.java:738)
  at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
  at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
  at java.lang.Thread.run(Thread.java:748)

es中无数据

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Bug

• Which version of SkyWalking, OS and JRE?

• Which company or project?

• What happen?
  If possible, provide a way for reproducing the error. e.g. demo application, component version.

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Requirement or improvement

• Please describe about your requirements or improvement suggestions.

[wu-sheng]

This means nothing. Just client disconnect from server.