Network portgroup selection shows empty result while performing RDU upgrade through vCenter Server UI

Products

• VMware vCenter Server 8.0

Issue/Introduction

• Network Portgroup selection dropdown shows an empty list while performing the RDU (reduced downtime upgrade) upgrade of the VC to the versions prior to vCenter Server 8.0 U2b.
  
  
• The issue happens when there is no network named "VM Network" in the inventory.
  
  
• VLCM Service crash at same time with below errors in the log file /var/log/vmware/vlcm/vlcm.log : 
  
  /var/log/vmware/vlcm/vlcm.log:
  
  <date & time> info vlcm [client/vc.go:39] [opID=<opid UUID>] No connection provided, connecting to the local VC
  <date & time> info vlcm [client/vc.go:73] [opID=<opid UUID>] Connection to the container is successful
  <date & time> info vlcm [draft/draft.go:931] [opID=<opid UUID>] GetNetwork: VC workflow
  <date & time> error vlcm [cmd/main.go:147] panic: runtime error: invalid memory address or nil pointer dereference
  
  goroutine 88 [running]:
  main.vlcmPanicHandler.ServeHTTP.func1()
          GOROOT/src/runtime/panic.go:914 +0x21f
  server/upgrade/draft.(*draftUpgrade).FetchNetwork
  server/vapi/vcenter/lcm/deployment.(*UpgradeDraftApiInterface).getNetwork
  

Cause

 

 

Resolution

This issue is resolved in vCenter Server 8.0 U2b and 8.0 U3.