Yearly Archives - 2008

SHOW OPEN TABLES – what is in your table cache

One command, which few people realize exists is SHOW OPEN TABLES – it allows you to examine what tables do you have open right now:


mysql> show open tables from test;
| Database | Table | In_use | Name_locked |
| test | a | […]

Read more

Reading MySQL Enterprise future…

Well, actually it is not reading future, but just mysql-5.1.30.rhel4.spec file from MySQL RedHat 4 SRPM.
I found there few MySQL Enterprise Editions, namely:
MySQL Enterprise Server – Advanced Edition
MySQL Enterprise Server – Pro Edition
MySQL Enterprise Server – Classic Edition
What is difference ? Let’s see.
For MySQL Enterprise Server – Advanced Edition:
%define INNODB_BUILD 1
For […]

Read more

When to use Hardware upgrade instead of Software Optimization

One typical question which frequently pops up is whenever it is better to use hardware upgrade or optimize software more. I already wrote about it, for example here.
Today I’ll look at the same topic from the consultants view. When consultant should suggest hardware upgrade and when it is not in a simple […]

Read more

iiBench configuration

A tip of the hat to Mark Callaghan, who suggested I post our my.cnf settings for iiBench.
Instead of fiddling around with the configuration file, we adjusted everything on the command line. Here’s the relevant script from iiBench/scripts/

Read more