HCX Bulk Migration fails with error "relocate on source side" in the Switchover tasks of the migration

Products

• VMware HCX

Issue/Introduction

When attempting a bulk migration it fails during the subtask of "relocate on source side".

app.log in HCX manager will show entries similar to: 

Log analysis identified this to show: "source side relocate failed for the virtual machine.  error is currently connected network interface 'Network adapter 1' uses network 'DVSwitch: <dv switch ID>, which is not accessible."

vpxd.log in vCenter will show entries similar to:

 a failure when Checking for DVS with portgroup key dvportgroup-###, port key 

Environment

VMware HCX
VMware vCenter

Cause

This is caused by a stale vCenter DB entry. 

Resolution

Migrate the virtual machine over a different service mesh(one uses a different virtual Distributed switch(vDs)/network container.  Then reverse migrate the virtual machine using the impacted service mesh/network container.  This will force vCenter to update the database with a new port entry.