Replication Synchronizations time out when using SSL Inspection in vCloud Availability 3.x

Products

• VMware Cloud Director

Issue/Introduction

Symptoms:

• When configuring new replications fail to synchronize and you see a similar error:

Sync timeout for replication 'C4-f162a9b0-####-####-####-##########8d'.

• Existing replications fail to synchronize and experience RPO violations.
• When you attempt to perform a manual synchronization, the task becomes stuck at 20% on the VM level and 28% on the vApp level.

Environment

VMware vCloud Availability 3.5.x
VMware vCloud Availability 3.0.x

Cause

This issue can occur when SSL inspection is enabled, resulting in a delay in cross-site traffic that causes replication tasks to time out.

Resolution

To resolve this issue, it is recommended to disable SSL inspection in your environment for vCloud Availabillity traffic.