[RATIS-576] NullPointerException at the ratis client while running Freon benchmark

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Not A Problem
• Affects Version/s: 0.4.0
• Fix Version/s: 1.0.0
• Labels: ozone
• Assignee: Nandakumar
• Reporter: Rakesh Radhakrishnan
• Created: 27/May/19 10:01
• Updated: 03/May/20 05:23
• Resolved: 03/May/20 05:23

Description

Hits NPE during Freon benchmark test run. Below is the exception logged at the client side output log message. 

SEVERE: Exception while executing runnable org.apache.ratis.thirdparty.io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed@6c585536
java.lang.NullPointerException
        at org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.completeReplyExceptionally(GrpcClientProtocolClient.java:320)
        at org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers.access$000(GrpcClientProtocolClient.java:245)
        at org.apache.ratis.grpc.client.GrpcClientProtocolClient$AsyncStreamObservers$1.onError(GrpcClientProtocolClient.java:269)
        at org.apache.ratis.thirdparty.io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:434)
        at org.apache.ratis.thirdparty.io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
        at org.apache.ratis.thirdparty.io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
        at org.apache.ratis.thirdparty.io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
        at org.apache.ratis.thirdparty.io.grpc.internal.CensusStatsModule$StatsClientInterceptor$1$1.onClose(CensusStatsModule.java:678)
        at org.apache.ratis.thirdparty.io.grpc.PartialForwardingClientCallListener.onClose(PartialForwardingClientCallListener.java:39)
        at org.apache.ratis.thirdparty.io.grpc.ForwardingClientCallListener.onClose(ForwardingClientCallListener.java:23)
        at org.apache.ratis.thirdparty.io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onClose(ForwardingClientCallListener.java:40)
        at org.apache.ratis.thirdparty.io.grpc.internal.CensusTracingModule$TracingClientInterceptor$1$1.onClose(CensusTracingModule.java:397)
        at org.apache.ratis.thirdparty.io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:459)
        at org.apache.ratis.thirdparty.io.grpc.internal.ClientCallImpl.access$300(ClientCallImpl.java:63)
        at org.apache.ratis.thirdparty.io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.close(ClientCallImpl.java:546)
        at org.apache.ratis.thirdparty.io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl.access$600(ClientCallImpl.java:467)
        at org.apache.ratis.thirdparty.io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:584)
        at org.apache.ratis.thirdparty.io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
        at org.apache.ratis.thirdparty.io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)