zifeihan commented on issue #6114:
URL: https://github.com/apache/skywalking/issues/6114#issuecomment-760153646
> > > 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;
> }
> ```
>
> 1. implement ConfigChangeWatcher called AgentConfigWatcher, if notified,
save task to AgentDynamicConfigTaskCache
> 2. On agent side implement DynamicConfigTaskChannelService, schedule a
thread to poll grpc service. same as
_org.apache.skywalking.apm.agent.core.profile.ProfileTaskChannelService_
> 3. I don‘t know whether yaml is proper way to save agent config. Do we
need to validate yaml？
>
> hope some suggestions.
So sorry, I have completed this feature, and plan to submit it in the next
two days.
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