vmkernel.log of an ESXi host logs "BufTooSmalll from readPolicy" repeatedly

Products

• VMware vSAN

Issue/Introduction

Messages similar to the below can sometimes be seen in /var/run/log/vmkernel.log of vSAN-enabled ESXi host:

WARNING: DOM: DOMOwnerCompleteCompositeReadPolicy:#####: BufTooSmalll from readPolicy

Environment

VMware vSAN 8.x

Resolution

These messages are harmless and can be safely ignored.