Hi @jota, good morning.
I think I’ve found something about this issue.
After checking my log files I saw a lot of problems related to MySQL connections. One of these was:
“… com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure__The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. [Sanitized]”
I restarted all and I saw this:
“WARN [Catalina-utility-1][DriverDataSource:68] Registered driver with driverClassName=com.mysql.jdbc.Driver was not found, trying direct instantiation.”
Could it be ‘jdbc.default.driverClassName’ property? Yes, it was.
By default portal-ext.properties file had: jdbc.default.driverClassName=com.mysql.jdbc.Driver
And it must be changed to: jdbc.default.driverClassName=com.mysql.cj.jdbc.Driver
I will monitor the instance along these days and I’ll let you know the results. I will cross my fingers.