ZSphere upgrade fails with unknown variable wait_timeout

Issue/Introduction

This article helps troubleshoot ZSphere upgrade failures that report unknown variable wait_timeout.

Symptoms

• The upgrade fails with an error containing unknown variable 'wait_timeout=600'.
• The user previously modified /etc/my.cnf for database security hardening.

Environment

• Product: ZVF
• Version: 4.x
• Component: ZSphere
• Affected object: upgrade or database
• Scenario: For management plane and upgrade issues, confirm the current version, deployment type, storage type, and operation timeline.

Possible causes

• The location or syntax of added parameters in