Rainbowboys opened a new issue #1230: io.grpc.internal.SerializingExecutor run URL: https://github.com/apache/incubator-skywalking/issues/1230 Please answer these questions before submitting your issue. - Why do you submit this issue? - [ ] Question or discussion - [x] Bug - [ ] Requirement - [ ] Feature or performance improvement ### desc - When I use version Beta, I'd like to use Opentrace to record log manually. But problems raised which didn't occur in version Alpha. ``` May 15, 2018 5:52:02 PM io.grpc.internal.SerializingExecutor run SEVERE: Exception while executing runnable io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1MessagesAvailable@2e92dd86 java.lang.NullPointerException at org.apache.skywalking.apm.collector.configuration.service.ComponentLibraryCatalogService.getComponentId(ComponentLibraryCatalogService.java:50) at org.apache.skywalking.apm.collector.analysis.segment.parser.provider.parser.standardization.SpanIdExchanger.exchange(SpanIdExchanger.java:62) at org.apache.skywalking.apm.collector.analysis.segment.parser.provider.parser.SegmentParse.preBuild(SegmentParse.java:116) at org.apache.skywalking.apm.collector.analysis.segment.parser.provider.parser.SegmentParse.parse(SegmentParse.java:68) at org.apache.skywalking.apm.collector.analysis.segment.parser.provider.service.SegmentParseService.parse(SegmentParseService.java:42) at org.apache.skywalking.apm.collector.agent.grpc.provider.handler.TraceSegmentServiceHandler$1.onNext(TraceSegmentServiceHandler.java:48) at org.apache.skywalking.apm.collector.agent.grpc.provider.handler.TraceSegmentServiceHandler$1.onNext(TraceSegmentServiceHandler.java:45) at io.grpc.stub.ServerCalls$StreamingServerCallHandler$StreamingServerCallListener.onMessage(ServerCalls.java:248) at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.messagesAvailable(ServerCallImpl.java:252) at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1MessagesAvailable.runInContext(ServerImpl.java:629) at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) ```
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