Zach suggested it last week, but it’s only now that I’ve gotten around to setting up MySQL’s slow query log.

It’s easy enough, you’ve just got to put a couple lines like this in your my.cnf (which is in /etc on my server):

log-slow-queries = /var/log/mysql/mysql-slow.log
long_query_time = 10

This should get most people running, but this story in Database Journal offers a few more details. Potentially more useful is this guide to query and index optimization (though it’s probably a little out of date).

mysql, mysql optimization, performance optimization, query optimization, slow query log, slow queries, high performance mysql

Related:

• MySQL Error 28: Temp Tables And Running Out of Disk Space
• Performance Optimization
• WordPress to_ping Query Optimization
• Easy MySQL Performance Tips
• Learning: MySQL Optimization

Posted February 13, 2006 by Casey
Categories: Technology. Tags: high performance mysql, mysql, mysql optimization, performance optimization, query optimization, slow queries, slow query log.

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