"AddVirtualMachine: VM 'XX' already registered" warnings keep logging into hostd.log

Products

• VMware vSphere ESXi

Issue/Introduction

Symptoms:

• In hostd.log on ESXi you see many warnings similar to:
  
  warning hostd[25E84B70] [Originator@6876 sub=VigorStatsProvider(601233040)] AddVirtualMachine: VM '12' already registered

Resolution

This is not an error and the warning can safely be ignored as it does not have any negative impact.