Decommissioning Cloudera Embedded Container Service Hosts

You can decommission Cloudera Embedded Container Service hosts without removing the node from the cluster.

Decommission the Cloudera Embedded Container Service hosts. Later, the same host can be recommissioned and have the roles assigned again.

In the Cloudera Manager instance, navigate to the Hosts page → ECS cluster.
Select the host, under Actions for Selected, click Begin Maintenance (Suppress Alerts/Decommission).
note
This action cordons and drains the node, stop roles, and mark the host in a maintenance state.
Detach all the volumes on the node.
1. In Cloudera Manager, navigate to the ECS Service.
2. In the Web UI dropdown, select Storage UI (Longhorn UI).
3. Under the Volume tab select the volumes on this node. Click Detach and confirm.
  If any volumes remain attached, detach them before proceeding to the next steps.
  important
  Optionally, you can remove the node from the cluster. This action is not applicable for a server node if there is only one active server role in the cluster.
  Remove the node from Kubernetes.
  kubectl delete node <node-name>