Promoting ECS Agents to ECS Servers
After installing the Load Balancer, you must reconfigure the existing Embedded Container Service (ECS) Agents to ECS Servers. This process is referred to as promoting the agents to servers. You must promote only one agent at a time.
In this example we will promote the ECS agent on agent1.example.com and then promote the ECS agent on agent2.example.com.
In Cloudera Manager, select the ECS cluster, then click
ECS. Stop the ECS agent running on agent1 and then
delete the agent.
In ECS, click Add Role Instances.
Add the available host agent1 as an ECS server in the
Add Role Instances to ECS pop-up. Click
Start the new ECS server from the ECS Instances view. For example, start the
ECS server on agent1.
Confirm the node’s status from the Web UI or the command line by running the
sudo /var/lib/rancher/rke2/bin/kubectl --kubeconfig=/etc/rancher/rke2/rke2.yaml get nodes