The size of the MySQL log files (mysqld.log*) is checked every 7 days. If the log files consume more than 1 GB of total disk space at the time they are checked, the files are deleted.
If you want to delete the log files before the automatic check runs on day 7 or before the files reach the 1 GB threshold, you can manually trigger the log files to be deleted:
Restart the MySQL database appliance (as described in Shutting Down and Restarting the Novell Appliance
in the Novell Filr 1.2 Administration Guide).
or
Run the flush logs command from the MySQL appliance (mysqladmin flush-logs).