Deploying avi form NSXT ui fails error: NSX Advanced Load Balancer Controller is not reachable

Products

• VMware NSX
• VMware NSX Advanced Load Balancer

Issue/Introduction

• Deploying NSX Advanced Load Balancer (AVI) form NSX-T UI fails with error: NSX Advanced Load Balancer Controller is not reachable.
• This usually occurs after removing a successful deployment and deploy a new AVI.
• NSX Manager nsxapi.log reported similar errors as following:
  
  2022-01-04T14:26:26.240Z INFO ActivityWorkerPool-1-12 AlbControllerNodeConfigurationTask 10807 POLICY [nsx@6876 comp="nsx-manager" level="INFO" subcomp="manager"] [ALB Controller] Controller configuration failed during on-boarding task in Policy. com.vmware.nsx.management.policy.advanceloadbalancer.exceptions.AdvancedLoadBalancerException: Error: An object with the same path=[/infra/sites/default/enforcement-points/alb-endpoint] is marked for deletion. Either use another path or wait for the purge cycle (max 5 minutes) for permanent removal of the object.

Environment

VMware NSX-T Data Center

VMware NSX Advanced Load Balancer

Resolution

Using API call to remove the stale endpoint entry in policy:

 

Method type - POST

https://<NSX_MANAGER_IP>/policy/api/v1/troubleshooting/infra/tree/realization?action=cleanup

Body -

{
"paths" : [
"/infra/sites/default/enforcement-points/alb-endpoint"
]
}