Upgrade Precheck for NSX-T shows error for "NSXT Audit Check"

Products

• VMware Cloud Foundation

Issue/Introduction

 

• When Upgrade precheck is triggered from SDDC Manager UI on a domain, "NSXT Audit Check" for NSX-T manager shows errors
• Following exception traces can be seen in LCM debug log (/var/log/vmware/vcf/lcm/lcm-debug.log)
  
  ERROR [vcf_lcm,27ac5a10ffcd0a13,8862,auditId=########-####-####-989f-1ff78b0ecb8a,resourceType=NSX_T_MANAGER,resourceId=nsx-mgmt-1.#####.vsphere.local,name=nsx-mgmt-1.####.vsphere.local] [c.v.e.s.l.p.impl.nsxt.NsxtAuditImpl,pool-6-thread-1] Error auditing NSX-T Cluster nsx-mgmt-1.####.vsphere.local with exception {}
com.vmware.evo.sddc.lcm.model.error.LcmException: Failed to load NSX-T Cluster from the Inventory
        at com.vmware.evo.sddc.lcm.primitive.impl.nsxt.NsxtInventoryLoader.loadNsxtInventory(NsxtInventoryLoader.java:87)
        at com.vmware.evo.sddc.lcm.primitive.impl.nsxt.NsxtAuditImpl.doAudit(NsxtAuditImpl.java:68)

Caused by: java.lang.RuntimeException: [address] nsx-mgmt-1:Validation failed. FQDN value does not match valid FQDN pattern
        at sun.reflect.GeneratedConstructorAccessor9128.newInstance(Unknown Source)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)

Environment

VMware Cloud Foundation 4.3
VMware Cloud Foundation 4.2

Cause

• Issue is observed if NSX-T managers are redeployed from backup in a VCF environment
• Complete FQDN of NSX-T managers is not specified for VM host name during OVF deployment

Resolution

Login to NSX-T manager via SSH and run following commands as "admin" user.

Substitute values for commands as per your environment.

• Verify host name:

nsx-mgmt-1> get hostname
nsx-mgmt-1

• If the returned host name does not have complete FQDN, update host name:

nsx-mgmt-1> set hostname nsx-mgmt-1.####.vsphere.local

• Verify modified host name:

nsx-mgmt-1> get hostname
nsx-mgmt-1.####.vsphere.local

• Reboot NSX-T manager:

nsx-mgmt-1> reboot
Are you sure you want to reboot (yes/no): yes

• Repeat above steps for each NSX-T manager that is part of NSX cluster
• Retry precheck from SDDC Manager UI