The Slow Query Log Mysql. To see if slow query logging is enabled enter the following SQL statement. Touch varlibmysqlslowlog chmod 660 varlibmysqlslowlog chown mysqlmysql varlibmysqlslowlog.
All these steps couldshould be first done in a test environament of course without affecting your production. The MySQL slow query log is where the MySQL database server registers all queries that exceed a given threshold of execution time. You cannot delete the file when mysql service is accessing the log file.
Locate the configuration section mysqld.
Set the amount of time a query needs to run before being logged. Pinpoint Problems To Find The Root Cause Of Performance Issues. All these steps couldshould be first done in a test environament of course without affecting your production. MySQL slow query log can be to used to determine queries that take a longer time to execute in order to optimize them.