VMware NSX-T Datacenter 3.2
VMware NSX 4.0
VMware NSX 4.1
Upgrade process is handed over from the orchestrator node to another Manager node when the last Manager node is upgraded.
The hand-over gets stuck forever if the Manager node that the upgrade process is handed over to can't retrieve backup files on the backup server.
The issue won't be seen when upgrading to NSX 4.2 or later.
If upgrade gets stuck, follow the steps to resume upgrade.
restart service install-upgrade