I wrote a perl script that will parse slow_queries logs, and output some
useful information. It's kind of hard to explain, but I'll try. I wanted to
see what queries were taking a lot of time, and how often they were
happening. I wrote a perl script that parses the log files, ignores queries
that take less than n seconds, and normalizes the queries and reports the
info for each queries sorted by query occurance.
'normalize' meaning...
this...
SELECT * FROM ween WHERE pandy_fackler = 1;
SELECT * FROM ween WHERE pandy_fackler = 15;
becomes...
SELECT * FROM ween WHERE pandy_fackler = XXX;
this...
SELECT names FROM things WHERE name LIKE '%wazoo%';
SELECT names FROM things WHERE name LIKE '%tada%';
becomes...
SELECT names FROM things WHERE name LIKE 'XXX';
This has proven to be a very interesting and useful tool. You should DL it
and try it on your long_queries log file.
Whoever runs mysql.com should put a copy on the website. It might just be
the greatest thing ever (my program, not the website).
For more info, and to get a copy, you can get it at:
http://www.retards.org/mysql/index.php
I'd like to hear people's thought on it. I'm the only person to test it so
far, so it'd be nice to know that it works for other people.
Thanks,
Nathan Hendler
Tucson, AZ USA
http://retards.org/
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