Deploying an Edge Cluster in SDDC Manager 4.0 fails at validation.

Products

• VMware Cloud Foundation

Issue/Introduction

Symptoms:

• In the SDDC Manager UI the Edge Cluster task failed at "Validate Edge cluster status". 
• In the log /var/log/vmware/vcf/domainmanager/domainmanager.log entries similar to below are seen:

2020-03-23T09:50:34.544+0000 ERROR [9b627df5fd09353f,38af] [c.v.e.s.o.model.error.ErrorFactory,dm-exec-5]  [GAVA2M] EDGE_CLUSTER_STATUS_VALIDATION_ERROR Edge cluster is nlthy. Edge node with ID 016c193a-####-####-####-##########84 is in DEGRADED state. Manager connectivity is UP. Controller connectivity is DOWN. Tunnels down: 0. Edge nodeID 207d81ff-####-####-####-##########38 is in DEGRADED state. Manager connectivity is UP. Controller connectivity is DOWN. Tunnels down: 0.
com.vmware.evo.sddc.orchestrator.exceptions.OrchTaskException: Edge cluster is not healthy. Edge node with ID 016c193a-####-####-####-##########84 is in DEGRADED state. M connectivity is UP. Controller connectivity is DOWN. Tunnels down: 0. Edge node with ID 207d81ff-####-####-####-##########38 is in DEGRADED state. Manager connectivity iController connectivity is DOWN. Tunnels down: 0.
        at com.vmware.vcf.nsxtedgeclustermanager.fsm.actions.ValidateEdgeNodesStatus.execute(ValidateEdgeNodesStatus.java:70)
        at com.vmware.vcf.nsxtedgeclustermanager.fsm.actions.ValidateEdgeNodesStatus.execute(ValidateEdgeNodesStatus.java:23)
        at com.vmware.evo.sddc.orchestrator.platform.action.FsmActionState.lambda$static$0(FsmActionState.java:14)

Note: This log excerpt is an example. Date, time, and environmental variables may vary depending on your environment.

Environment

VMware Cloud Foundation 4.x

Cause

This is a post deployment validation step after the Edge cluster is created and may timeout while waiting for the NSX-T Edge nodes tunnels and connectivity to become responsive. 

Resolution

Allow for some time for the NSX-T Edge nodes to complete, approx 5 mins, and then restart the task from the SDDC Manager UI.