NSX-T upgrade through SDDC manager takes a long time during prechecks

Products

• VMware SDDC Manager

Issue/Introduction

SDDC manager is performing NSX-T prechecks two times during the NSX-T upgrade workflow. 

Environment

VMware Cloud Foundation 5.2.x

Cause

SDDC Manager runs the NSX-T prechecks once during the Configure Upgrade workflow if NSX-T Upgrade Coordinator is already upgraded.
SDDC Manager then runs the NSX-T prechecks again in the update phase when the Schedule Update is initiated. 

Resolution

Workaround to skip the second NSX-T precheck that is initiated during the Update phase. 

1. SSH session to the SDDC Manager with vcf and switch to the root user: su
   
   
2. Open application-prod.properties for editing:
   
vi /opt/vmware/vcf/lcm/lcm-app/conf/application-prod.properties
   
   
3. Add the following property to the bottom of the file and save the file.
   
lcm.nsxt.suppress.prechecks=true
   
   
4. Restart the LCM service and operationsmanager service. 
   
systemctl restart lcm

systemctl restart operationsmanager
5. Verify the LCM service is up:
   
   curl localhost/lcm/about | json_pp



Workaround to skip NSX-T Upgrade Coordintaor prechecks, if Upgrade Coordinator has already been upgraded. 

1. SSH session to the SDDC Manager with vcf and switch to the root user: su
   
   
2. Open application-prod.properties for editing:
   
vi /opt/vmware/vcf/lcm/lcm-app/conf/application-prod.properties
   
   
3. Change lcm.nsxt.upgrade.coordinator.checks.enabled to false.
   
lcm.nsxt.upgrade.coordinator.checks.enabled=false
   
   
4. Restart the LCM service and operationsmanager service. 
   
systemctl restart lcm

systemctl restart operationsmanager
   
   
5. Verify the LCM service is up:
   
   curl localhost/lcm/about | json_pp



Precheck execution can be avoided completely by skipping both configure and upgrade time prechecks by applying the above workarounds.

Additional Information

NSX-T Upgrade from SDDC manager 5.2 stays in pending state.