Symptoms:
- NSX-T ESXi host upgrade fails when upgrading from NSX-T Data Center versions earlier than 3.0.0.
- Upgrade Coordinator display a long error string which contains the following exception
"KernelModulesException: Failed to unload module nsxt-vsip: Cannot remove module nsxt-vsip: Consumed resource count of module is not zero"
- The ESXi /var/log/vmkernel.log contains similar messaging to this example where field of fqdn value highlighted is non-zero
2019-12-12T15:49:33.510Z cpu30:22424799)ExportStateTLV total: 81423, tables: 11512/11496/32, rules: 65206/65190/3, states: 1551/1535/3, attrs: 74/58/1, algs: 804/788/20, algports: 136/120/2, fqdn: 250/234/2, miscs: 1874/1858/5