How do I ensure that MySQL is writing out its error log as the correct user?

I have a development Airflow server. It uses MySQL as its database. In the mysqld settings, I have the user set to mysql. However, the log is being written out as a different user named adm whenever the log is rolled over. I have confirmed I have set the desired user to mysql in the config, restarted the MySQL service to pick up this change, but it is still changing daily to adm. How can I make it so that the mysql user writes out the error log file after rolling over? [mysqld] # # * Basic Settings # user = mysql ... # Error log - should be very few entries. # log_error = /var/log/mysql/error.log Sample current directory: drwxr-x--- 2 mysql mysql 4096 Oct 23 13:37 . drwxrwxr-x 13 root syslog 4096 Oct 23 00:00 .. -rw-r----- 1 adm adm 0 Oct 23 00:00 error.log Desired directory: drwxr-x--- 2 mysql mysql 4096 Oct 23 13:37 . drwxrwxr-x 13 root syslog 4096 Oct 23 00:00 .. -rw-r----- 1 mysql mysql 0 Oct 23 00:00 error.log