org.apache.skywalking.oap.server.receiver.trace.provider.parser.SegmentParseV2

[xiaour]

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?

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Bug

• Which version of SkyWalking, OS and JRE?
  6.0.0GA for JDK1.8、CentOS7 64bit

• Which company or project?

• What happen?

I've 4 Server Application config the anget,but the Webpage is 0。
show me the Skywaking server log.
2019-01-30 16:00:42,699 - org.apache.skywalking.oap.server.storage.plugin.elasticsearch.cache.ServiceInventoryCacheEsDAO - 86 [grpc-default-executor-0] ERROR [] - null java.lang.NullPointerException: null 2019-01-30 16:00:42,699 - org.apache.skywalking.oap.server.receiver.trace.provider.parser.SegmentParseV2 - 111 [grpc-default-executor-0] ERROR [] - null java.lang.NullPointerException: null at org.apache.skywalking.oap.server.receiver.trace.provider.parser.standardization.SpanIdExchanger.exchange(SpanIdExchanger.java:119) ~[skywalking-trace-receiver-plugin-6.0.0-GA.jar:6.0.0-GA] at org.apache.skywalking.oap.server.receiver.trace.provider.parser.SegmentParseV2.preBuild(SegmentParseV2.java:146) ~[skywalking-trace-receiver-plugin-6.0.0-GA.jar:6.0.0-GA] at org.apache.skywalking.oap.server.receiver.trace.provider.parser.SegmentParseV2.parse(SegmentParseV2.java:89) [skywalking-trace-receiver-plugin-6.0.0-GA.jar:6.0.0-GA] at org.apache.skywalking.oap.server.receiver.trace.provider.parser.SegmentParseV2$Producer.send(SegmentParseV2.java:265) [skywalking-trace-receiver-plugin-6.0.0-GA.jar:6.0.0-GA] at org.apache.skywalking.oap.server.receiver.trace.provider.handler.v6.grpc.TraceSegmentReportServiceHandler$1.onNext(TraceSegmentReportServiceHandler.java:58) [skywalking-trace-receiver-plugin-6.0.0-GA.jar:6.0.0-GA] at org.apache.skywalking.oap.server.receiver.trace.provider.handler.v6.grpc.TraceSegmentReportServiceHandler$1.onNext(TraceSegmentReportServiceHandler.java:50) [skywalking-trace-receiver-plugin-6.0.0-GA.jar:6.0.0-GA] at io.grpc.stub.ServerCalls$StreamingServerCallHandler$StreamingServerCallListener.onMessage(ServerCalls.java:248) [grpc-stub-1.15.1.jar:1.15.1] at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.messagesAvailable(ServerCallImpl.java:263) [grpc-core-1.15.1.jar:1.15.1] at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1MessagesAvailable.runInContext(ServerImpl.java:683) [grpc-core-1.15.1.jar:1.15.1] at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) [grpc-core-1.15.1.jar:1.15.1] at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) [grpc-core-1.15.1.jar:1.15.1] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_144] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_144] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_144]

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Requirement or improvement

• Please describe about your requirements or improvement suggestions.

[wu-sheng]

This isn't bug. It is caused by the data deleted from storage, but agent doesn't restart.

[yijiuping]

I'm using 6.1.0, and still have this issue. :)

2019-06-26 21:08:58,569 - org.apache.skywalking.oap.server.receiver.trace.provider.parser.SegmentParseV2 - 114 [grpc-default-executor-0] ERROR [] - null
java.lang.NullPointerException: null
at org.apache.skywalking.oap.server.receiver.trace.provider.parser.standardization.SpanIdExchanger.exchange(SpanIdExchanger.java:119) ~[skywalking-trace-receiver-plugin-6.1.0.jar:6.1.0]
at org.apache.skywalking.oap.server.receiver.trace.provider.parser.SegmentParseV2.preBuild(SegmentParseV2.java:149) ~[skywalking-trace-receiver-plugin-6.1.0.jar:6.1.0]
at org.apache.skywalking.oap.server.receiver.trace.provider.parser.SegmentParseV2.parse(SegmentParseV2.java:92) [skywalking-trace-receiver-plugin-6.1.0.jar:6.1.0]
at org.apache.skywalking.oap.server.receiver.trace.provider.parser.SegmentParseV2$Producer.send(SegmentParseV2.java:270) [skywalking-trace-receiver-plugin-6.1.0.jar:6.1.0]
at org.apache.skywalking.oap.server.receiver.trace.provider.handler.v6.grpc.TraceSegmentReportServiceHandler$1.onNext(TraceSegmentReportServiceHandler.java:58) [skywalking-trace-receiver-plugin-6.1.0.jar:6.1.0]
at org.apache.skywalking.oap.server.receiver.trace.provider.handler.v6.grpc.TraceSegmentReportServiceHandler$1.onNext(TraceSegmentReportServiceHandler.java:50) [skywalking-trace-receiver-plugin-6.1.0.jar:6.1.0]
at io.grpc.stub.ServerCalls$StreamingServerCallHandler$StreamingServerCallListener.onMessage(ServerCalls.java:248) [grpc-stub-1.15.1.jar:1.15.1]
at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.messagesAvailable(ServerCallImpl.java:263) [grpc-core-1.15.1.jar:1.15.1]
at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1MessagesAvailable.runInContext(ServerImpl.java:683) [grpc-core-1.15.1.jar:1.15.1]
at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37) [grpc-core-1.15.1.jar:1.15.1]
at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123) [grpc-core-1.15.1.jar:1.15.1]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_131]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_131]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131]

@wu-sheng

[wu-sheng]

Again not a bug at all.

[yijiuping]

Again not a bug at all.

OK, I will try to restart all agents. Thank you!

[stalary]

I've had this problem too, but I don't know which clients are using it. What should I do

[wu-sheng]

I've had this problem too, but I don't know which clients are using it. What should I do

I think it is impossible to know, unless to open the logs(will be tons of logs, be careful). That is why the latest releases have agent hot reboot.