MYSQL Failover system was upgraded from 9.0 to 9.5 CU12.
After upgrade, a manual failover test was initiated and attempted (3 times) to bring backup agent online (none successfully). Primary starts up very quickly.
SLDataminer log indicates the following:
Ryan Reuss [SLC] [DevOps Advocate] Selected answer as best 14th July 2020
The full logging will be required to perform an accurate analysis.
Based on the info available, I believe the delay is the result of outstanding content that needs to be offloaded to the database.
Ive Herreman [SLC] [DevOps Catalyst] Answered question 14th July 2020