Why this suddenly? Registered driver with driverClassName=com.mysql.jdbc.Driver was not found, trying direct instantiation.

Suddenly this warning show up Registered driver with driverClassName=com.mysql.jdbc.Driver was not found, trying direct instantiation.

Everything seems to work normal though

Anders

It's deprecated class name. New one is com.mysql.cj.jdbc.Driver.

Thanks! Fixed it.

Is the documentation wrong here or does it depend on what JRE the server has?
https://www.traccar.org/mysql/

Documentation hasn't been updated because both options work for now. And we want instructions to work for everyone, even people with old versions of Traccar, if possible.

Understand. My Traccar just crashed because of the "old" setting - though was working for many days. Trying the above now.

Let's see the crash.

Server was running and working, suddenly it wasn't available via browser anymore. The log showing this:

2020-06-10 15:34:13  INFO: HikariPool-1 - Starting...
2020-06-10 15:34:13  WARN: Registered driver with driverClassName=com.mysql.jdbc.Driver was not found, trying direct instantiation.
2020-06-10 15:34:18 ERROR: HikariPool-1 - Exception during pool initialization. - Connection refused (Connection refused) - ConnectException (... < DataManager:139 < *:89 < Context:292 < Main:110 < ...)
2020-06-10 15:34:18 ERROR: Main method error - Connection refused (Connection refused) - ConnectException (... < DataManager:139 < *:89 < Context:292 < Main:110 < ...)

I could restart it without changing settings. Then I changed settings to the above. Restarted it again.

The error says connection refused. I don't think it has anything to do with the driver, but also possible that MySQL is starting to enforce usage of the new driver.