So your MySQL server has crashed.  What do you do now?  When a server is down, in my opinion, there are two steps that are essential and both are extremely important and neither should be neglected: Save diagnostic information for determining the root cause analysis (RCA). Get the server back up and running. Too many [&]

https://www.percona.com/blog/2021/04/07/mysql-101-basic-mysql-server-triage/