Verify that you want to complete this operation on this node canister. If you want to complete this action, check for any node errors and resolve any problems on the node that caused the node to enter service state. If you can access the management GUI for this system, use the fix procedure that corresponds with any node errors. If you cannot access the management GUI, use the service assistant GUI to fix node errors and remove the node from service state.
See topics in the Troubleshooting section of the Information Center.