MySQL Slow Query Log: Monitor & Guide

You can monitor and retrieve MySQL slow logs by following these steps:

1. Enable slow query logging: set the slow query log parameters in the MySQL configuration file, typically turning on slow_query_log = ON and setting a threshold for the slow query time, usually long_query_time = 1, indicating that SQL statements taking longer than 1 second will be logged in the slow query log.
2. Check the path of the slow query log: View the path of the slow query log in the MySQL configuration file, which is typically set as slow_query_log_file = /path/to/slow_query.log.
3. View the contents of the slow query log: By using the command line or a file, you can see which SQL statements are taking longer to execute than the threshold, and identify any SQL statements that may be causing performance issues.
4. Analyze slow query logs using tools: You can analyze slow query logs by using built-in tools like mysqldumpslow in MySQL or third-party tools like pt-query-digest to identify SQL statements impacting performance and optimize them.
5. Regularly monitoring and analyzing slow query logs is recommended to promptly identify potential performance issues, optimize them, and improve system performance and stability.