Agent is not connecting with Skywalking

[luciyaroshni]

I have installed Skywalking and now tried installing the Java Agent on the Java Application machine but the agent is not working/connecting and no logs are getting generated.
I have followed the following links:
https://www.programmerall.com/article/37592063507/
https://skywalking.apache.org/docs/skywalking-java/latest/en/setup/service-agent/java-agent/readme/

[wu-sheng]

Follow the showcase to start SkyWalking out-of-box quickly. https://skywalking.apache.org/docs/#SkyWalkingShowcase

[luciyaroshni]

We have already followed the document but, this issue is still the same.

[wu-sheng]

The showcase is out-of-box, I don't think you will face this issue.

[luciyaroshni]

We are getting this error in the log files. Please suggest a solution for this.

agent log:

DEBUG 2021-12-02 20:16:04:982 grpc-nio-worker-ELG-1-4 org.apache.skywalking.apm.dependencies.io.grpc.netty.NettyClientHandler : [id: 0xa3865fdf, L:/10.83.100.231:49818 - R:/10.83.101.88:11800] OUTBOUND HEADERS: streamId=2163 headers=GrpcHttp2OutboundHeaders[:authority: 10.83.101.88:11800, :path: /skywalking.v3.JVMMetricReportService/collect, :method: POST, :scheme: http, content-type: application/grpc, te: trailers, user-agent: grpc-java-netty/1.32.1, authentication: erasmith12345, agent-version: 8.8.0, grpc-accept-encoding: gzip, grpc-timeout: 29999874u] streamDependency=0 weight=16 exclusive=false padding=0 endStream=false
DEBUG 2021-12-02 20:16:04:982 grpc-nio-worker-ELG-1-4 org.apache.skywalking.apm.dependencies.io.grpc.netty.NettyClientHandler : [id: 0xa3865fdf, L:/10.83.100.231:49818 - R:/10.83.101.88:11800] OUTBOUND DATA: streamId=2163 padding=0 endStream=true length=315 bytes=00000001360aeb0108b49ff0dcd72f12001a180801108080807e188080a0f70d20c8e9972428808080b4021a1a1080809c0118ffffffffffffffffff0120a8f5...
DEBUG 2021-12-02 20:16:04:999 grpc-nio-worker-ELG-1-4 org.apache.skywalking.apm.dependencies.io.grpc.netty.NettyClientHandler : [id: 0xa3865fdf, L:/10.83.100.231:49818 - R:/10.83.101.88:11800] INBOUND PING: ack=false bytes=1234
DEBUG 2021-12-02 20:16:04:999 grpc-nio-worker-ELG-1-4 org.apache.skywalking.apm.dependencies.io.grpc.netty.NettyClientHandler : [id: 0xa3865fdf, L:/10.83.100.231:49818 - R:/10.83.101.88:11800] OUTBOUND PING: ack=true bytes=1234
DEBUG 2021-12-02 20:16:05:000 grpc-nio-worker-ELG-1-4 org.apache.skywalking.apm.dependencies.io.grpc.netty.NettyClientHandler : [id: 0xa3865fdf, L:/10.83.100.231:49818 - R:/10.83.101.88:11800] INBOUND HEADERS: streamId=2163 headers=GrpcHttp2ResponseHeaders[:status: 200, content-type: application/grpc, grpc-status: 12, grpc-message: Method not found: skywalking.v3.JVMMetricReportService/collect] padding=0 endStream=true
DEBUG 2021-12-02 20:16:05:000 grpc-nio-worker-ELG-1-4 org.apache.skywalking.apm.dependencies.io.grpc.netty.NettyClientHandler : [id: 0xa3865fdf, L:/10.83.100.231:49818 - R:/10.83.101.88:11800] OUTBOUND RST_STREAM: streamId=2163 errorCode=8
ERROR 2021-12-02 20:16:05:000 SkywalkingAgent-6-JVMService-consume-0 JVMMetricsSender : send JVM metrics to Collector fail.
org.apache.skywalking.apm.dependencies.io.grpc.StatusRuntimeException: UNIMPLEMENTED: Method not found: skywalking.v3.JVMMetricReportService/collect
at org.apache.skywalking.apm.dependencies.io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:262)
at org.apache.skywalking.apm.dependencies.io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:243)
at org.apache.skywalking.apm.dependencies.io.grpc.stub.ClientCalls.blockingUnaryCall(ClientCalls.java:156)
at org.apache.skywalking.apm.network.language.agent.v3.JVMMetricReportServiceGrpc$JVMMetricReportServiceBlockingStub.collect(JVMMetricReportServiceGrpc.java:181)
at org.apache.skywalking.apm.agent.core.jvm.JVMMetricsSender.run(JVMMetricsSender.java:82)
at org.apache.skywalking.apm.util.RunnableWithExceptionProtection.run(RunnableWithExceptionProtection.java:33)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
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)

Collector log:

Description:

The Tomcat connector configured to listen on port 8092 failed to start. The port may already be in use or the connector may be misconfigured.

Action:

Verify the connector's configuration, identify and stop any process that's listening on port 8092, or configure this application to listen on another port.

2021-12-02 15:01:07.741 INFO 3717 --- [main] ationConfigEmbeddedWebApplicationContext : Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@6e06451e: startup date [Thu Dec 02 15:00:59 EST 2021]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@36aa7bc2
2021-12-02 15:01:07.743 INFO 3717 --- [main] o.s.c.support.DefaultLifecycleProcessor : Stopping beans in phase 2147483647
2021-12-02 15:01:07.744 INFO 3717 --- [main] o.s.c.support.DefaultLifecycleProcessor : Stopping beans in phase 0
2021-12-02 15:01:07.745 INFO 3717 --- [main] o.s.c.n.zuul.ZuulFilterInitializer : Stopping filter initializer
2021-12-02 15:01:07.748 INFO 3717 --- [main] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans on shutdown
2021-12-02 15:01:07.748 INFO 3717 --- [main] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans
2021-12-02 15:01:07.761 WARN 3717 --- [main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2021-12-02 15:01:07.761 INFO 3717 --- [main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.