Abacn opened a new issue, #35126: URL: https://github.com/apache/beam/issues/35126
### What happened? Seen this several times: ``` org.apache.beam.vendor.grpc.v1p69p0.io.grpc.StatusRuntimeException: CANCELLED: Failed to read message. at org.apache.beam.vendor.grpc.v1p69p0.io.grpc.Status.asRuntimeException(Status.java:532) at org.apache.beam.vendor.grpc.v1p69p0.io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onClose(ClientCalls.java:481) at org.apache.beam.vendor.grpc.v1p69p0.io.grpc.internal.ClientCallImpl.closeObserver(ClientCallImpl.java:564) at org.apache.beam.vendor.grpc.v1p69p0.io.grpc.internal.ClientCallImpl.access$100(ClientCallImpl.java:72) at org.apache.beam.vendor.grpc.v1p69p0.io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInternal(ClientCallImpl.java:729) at org.apache.beam.vendor.grpc.v1p69p0.io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamClosed.runInContext(ClientCallImpl.java:710) at org.apache.beam.vendor.grpc.v1p69p0.io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) at org.apache.beam.vendor.grpc.v1p69p0.io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:133) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.lang.Thread.run(Thread.java:829) Caused by: java.lang.NullPointerException at org.apache.beam.fn.harness.status.BeamFnStatusClient.getMemoryUsage(BeamFnStatusClient.java:164) at org.apache.beam.fn.harness.status.BeamFnStatusClient$InboundObserver.onNext(BeamFnStatusClient.java:283) at org.apache.beam.fn.harness.status.BeamFnStatusClient$InboundObserver.onNext(BeamFnStatusClient.java:279) at org.apache.beam.vendor.grpc.v1p69p0.io.grpc.stub.ClientCalls$StreamObserverToCallListenerAdapter.onMessage(ClientCalls.java:468) at org.apache.beam.vendor.grpc.v1p69p0.io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1MessagesAvailable.runInternal(ClientCallImpl.java:657) at org.apache.beam.vendor.grpc.v1p69p0.io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1MessagesAvailable.runInContext(ClientCallImpl.java:644) ... 5 more ``` It points to here: https://github.com/apache/beam/blob/ab191181d9d143f28fe5b598144a6553ff4b0489/sdks/java/harness/src/main/java/org/apache/beam/fn/harness/status/BeamFnStatusClient.java#L164 it appears `memoryMonitor` is null. However, it has been setup in constructor. Not sure how this is possible The error is transient. Happens for some seconds at pipeline start up on worker but the pipeline can evantually run ### Issue Priority Priority: 2 (default / most bugs should be filed as P2) ### Issue Components - [ ] Component: Python SDK - [ ] Component: Java SDK - [ ] Component: Go SDK - [ ] Component: Typescript SDK - [ ] Component: IO connector - [ ] Component: Beam YAML - [ ] Component: Beam examples - [ ] Component: Beam playground - [ ] Component: Beam katas - [ ] Component: Website - [ ] Component: Infrastructure - [ ] Component: Spark Runner - [ ] Component: Flink Runner - [ ] Component: Samza Runner - [ ] Component: Twister2 Runner - [ ] Component: Hazelcast Jet Runner - [ ] Component: Google Cloud Dataflow Runner -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: github-unsubscr...@beam.apache.org.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org