Error message like 'local variable 'host' referenced before assignment' when logging to VR 8.2 VAMI page

Products

• VMware Live Recovery
• VMware vSphere ESXi

Issue/Introduction

Symptoms:
When logging into VAMI page we see an error popping up "'local variable 'host' referenced before assignment' 
The VAMI page will show the status on top as "Retrieving VR Network Isolation Info"

 
Most of the time issue is observed when the appliance is upgraded to 8.2 from previous version

Environment

VMware vSphere Replication 8.x

Cause

This issue caused by a un-resolvable HMS IP Address.

Resolution

Currently there is no resolution

Workaround:
Create entry for replication appliance IP and FQDN in hosts file.

1. SSH to the replication appliance.
2. cd /etc
3. Take a backup of hosts file by running command

cp hosts hosts.bak

4. vi (edit) hosts file
5  Add the entry of VR hosts and FQDN in below format between 
10.21.23.2 vr-prod-2.lab.vmware.com

11. Once done save and exit the vi editor 
To save the changes and exit press Escape key on keyboard then type :wq!  and hit enter key
12. On VAMI page click on save and restart services.

Note: If you see HMS service still stuck on "starting HMS" although you already got configuration saved successfully message, just refresh the page and re-login.