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2011-03-12 - Confoo 2011 presentation
Slides are available from the commandlinefu presentation at Confoo 2011: http://presentations.codeinthehole.com/confoo2011/
2011-01-04 - Moderation now required for new commands
To try and put and end to the spamming, new commands require moderation before they will appear on the site.
2010-12-27 - Apologies for not banning the trolls sooner
Have been away from the interwebs over Christmas. Will be more vigilant henceforth.
2010-09-24 - OAuth and pagination problems fixed
Apologies for the delay in getting Twitter's OAuth supported. Annoying pagination gremlin also fixed.




Monitor the queries being run by MySQL

Terminal - Monitor the queries being run by MySQL
watch -n 1 mysqladmin --user=<user> --password=<password> processlist
2009-02-16 11:21:16
User: root
Functions: watch
Monitor the queries being run by MySQL

Watch is a very useful command for periodically running another command - in this using mysqladmin to display the processlist. This is useful for monitoring which queries are causing your server to clog up.

More info here: http://codeinthehole.com/archives/2-Monitoring-MySQL-processes.html


There are 2 alternatives - vote for the best!

Terminal - Alternatives
mysql -BNe "SELECT user,COUNT(user) AS count FROM processlist GROUP BY user ORDER BY count;" information_schema
2012-03-09 17:25:23
User: anarcat
Tags: mysql

This shows the number of threads allocated per user.

Know a better way?

If you can do better, submit your command here.

What others think

My watch complained about --user not being a valid option so I wrapped it with quotes and made the flags shorter(and added the config file). RH Ent 4, bash.

watch -n 1 'mysqladmin --defaults-file=mysql.cnf -u root -p processlist'

Great time saver, thanks!

Comment by kancer 318 weeks and 6 days ago

Add '-d' to highlight the differences in the command output.

Add a pipe through 'grep -v Sleep' to avoid too many lines of sleepy processes

watch -d -n 1 "mysqladmin --user=<user> --password=<password> processlist | grep -v Sleep"
Comment by unixmonkey10245 250 weeks and 5 days ago

how about revising to hide the password ??

Comment by vRobM 240 weeks and 2 days ago

Your point of view

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