skywalking-java/docs/en/setup/service-agent/java-agent/configuration-discovery.md

CDS - Configuration Discovery Service

CDS - Configuration Discovery Service provides the dynamic configuration for the agent, defined in gRPC.

Configuration Format

The configuration content includes the service name and their configs. The

configurations:
  //service name
  serviceA:
    // Configurations of service A
    // Key and Value are determined by the agent side.
    // Check the agent setup doc for all available configurations.
    key1: value1
    key2: value2
    ...
  serviceB:
    ...

Available key(s) and value(s) in Java Agent.

Java agent supports the following dynamic configurations.

Config Key	Value Description	Value Format Example	Required Plugin(s)
agent.sample_n_per_3_secs	The number of sampled traces per 3 seconds	-1	-

• Required plugin(s), the configuration affects only when the required plugins activated.