xuanyu66 edited a comment on issue #6114:
URL: https://github.com/apache/skywalking/issues/6114#issuecomment-760011860
> > config server(nacos,zk) <--update Event--> OAP --command--> agent
> > did I get that right?
>
> Yes, but we need more details about how to make this happens. Such as
>
> 1. The gRPC service between agent and OAP
> 2. How to define the configuration of every servic in the configuration
center. Such as, do you provide one key with a YAML as value for all services?
> 3. How the agent core and plugin declare the config is changeable, and
listening to the change event from the command.
1. define a gRPC service
```
import "common/Common.proto";
service AgentDynamicConfigTask {
// query all sniffer need to execute dynamic config task commands
rpc getDynamicConfigCommands (DynamicConfigTaskCommandQuery) returns
(Commands) {
}
message DynamicConfigTaskCommandQuery {
// last command timestamp
int64 lastCommandTime = 1;
}
```
2. implement ConfigChangeWatcher called AgentConfigWatcher, if notified,
save task to AgentDynamicConfigTaskCache
3. On agent side implement DynamicConfigTaskChannelService, schedule a
thread to poll grpc service. same as
_org.apache.skywalking.apm.agent.core.profile.ProfileTaskChannelService_
4. I don‘t know whether yaml is proper way to save agent config. Do we need
to validate yaml？
---
hope some suggestions.
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