Mid server not upgrading after upgrade to xanadu

[Servicenow lear]

Hello, we are doing upgrade to xanadu from Vancouver.

our mid servers are failing upgrade. Anyone facing such issue.

[Paul Curwen]

See MID Server section on this page:  https://docs.servicenow.com/bundle/xanadu-release-notes/page/release-notes/summary/rn-summary-upgrad...

Xanadu: The minimum JRE version supported is 11.0.9 and the recommended version is 11.0.16.1.

Some useful links if that is not your issue: 

• MID Server Down | A guide on how to restore the MID Server
  https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0535040
• How to manually restore or upgrade a MID Server after a failed auto-upgrade
  https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0713557
• How to continue a MID Server upgrade after it has crashed in the middle of the ServiceNow Platform Distribution Upgrade service leaving the MID Server down and service not running
  https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0779816
• MID Server upgrade process - What actually happens when a MID Server upgrades itself?
  https://support.servicenow.com/kb?id=kb_article_view&sysparm_article=KB0696937