skywalking-java/docs/en/Setting-override.md

Setting Override

Supported version

5.0.0-beta +

Agent setting override supported since 3.2.5

What is setting override?

In default, SkyWalking provide agent.config for client, and application.yml for server settings.

Setting override means end user can override the settings in these config file, by using system properties.

Override priority

System.Properties(-D) > Config file

Override

Agent

Use skywalking. + key in config file as system properties and envs key, to override the value.

• Why need this prefix?

  The agent system properites and env share with target application, this prefix can avoid variable conflict.

Collector

Use key in config file as system properties and envs key, to override the value.

Example:

• Setting in application.yml

agent_gRPC:
  gRPC:
    host: localhost
    port: 11800

• Override port to 31200 by system property, add the following line into startup script.

-Dagent_gRPC.gRPC.port=31200