kezhenxu94 commented on pull request #6232:
URL: https://github.com/apache/skywalking/pull/6232#issuecomment-764291617
Only one problem, it's disabled by default at OAP side, while it's enabled
at the agent side's, causing unnecessary error logs like this:
```
ERROR 2021-01-21 12:06:11:199
SkywalkingAgent-12-ConfigurationDiscoveryService-0
ConfigurationDiscoveryService : ConfigurationDiscoveryService execute fail.
org.apache.skywalking.apm.dependencies.io.grpc.StatusRuntimeException:
UNIMPLEMENTED: Method not found:
skywalking.v3.ConfigurationDiscoveryService/fetchConfigurations
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.ConfigurationDiscoveryServiceGrpc$ConfigurationDiscoveryServiceBlockingStub.fetchConfigurations(ConfigurationDiscoveryServiceGrpc.java:211)
at
org.apache.skywalking.apm.agent.core.conf.dynamic.ConfigurationDiscoveryService.getAgentDynamicConfig(ConfigurationDiscoveryService.java:188)
at
org.apache.skywalking.apm.util.RunnableWithExceptionProtection.run(RunnableWithExceptionProtection.java:33)
at
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
at
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
ERROR 2021-01-21 12:06:13:788
SkywalkingAgent-12-ConfigurationDiscoveryService-0
ConfigurationDiscoveryService : ConfigurationDiscoveryService execute fail.
org.apache.skywalking.apm.dependencies.io.grpc.StatusRuntimeException:
UNIMPLEMENTED: Method not found:
skywalking.v3.ConfigurationDiscoveryService/fetchConfigurations
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.ConfigurationDiscoveryServiceGrpc$ConfigurationDiscoveryServiceBlockingStub.fetchConfigurations(ConfigurationDiscoveryServiceGrpc.java:211)
at
org.apache.skywalking.apm.agent.core.conf.dynamic.ConfigurationDiscoveryService.getAgentDynamicConfig(ConfigurationDiscoveryService.java:188)
at
org.apache.skywalking.apm.util.RunnableWithExceptionProtection.run(RunnableWithExceptionProtection.java:33)
at
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at
java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
at
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
```
You can either enable at OAP side or do some detection at the agent side
like this
https://github.com/apache/skywalking/blob/5bfac1b50f79d544b98bfe4b20f7db165badce52/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/profile/ProfileTaskChannelService.java#L100-L108
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