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Version: v1.4

Start Upper-Layer System

Introduction​

Dayu's upper-layer system has two lifecycle scopes:

  • the support layer contains Backend, Frontend, Datasource, and Redis and is started by dayu.sh;
  • the application runtime contains Scheduler, Generator, Controller, Processor, Distributor, and Monitor RuntimeServices and is installed from the frontend or Backend API.

Starting the support layer does not install a scheduler policy or application DAG. This separation lets operators change or remove an application runtime without rebuilding the lower-layer cluster.

Start process​

  1. Customize template files.
  2. Deploy mounted files.
  3. Run Dayu system.

Before starting, confirm the lower-layer system is healthy and the registry and mounted paths in template/base.yaml are reachable from every selected node.