If you’ve upgraded from MySQL 5.1 to a newer version (5.5? 5.6? 5.7?) Mark Leith shows you why you should turn on performance_schema. Roland Bouman gave us Common_Schema to help improve the SQL user experience. Mark now lets us look inward at the IO latency to improve the system. Mark has developed a great set of views and procedures to work with performance_schema that can […]
I get ask, by application developers, “how do you optimize MySQL”. I do lots of things that don’t really relate to a developer. I analyze the percent of queries are being pulled from cache for instance. What a developer can do to optimize the SQL they develop is a different questions. So here is a […]
I was able to compile Drizzle on CentOS today thanks to Neil Armitage post on his website. Clean install centos 5.4 with Development Tools and Development Libraries yum groupinstall “Development Tools” yum groupinstall “Development Libraries” Setup the drizzle user account and allow it to sudo /usr/sbin/visudo uncomment %wheel ALL=(ALL) NOPASSWD: ALL useradd drizzle gpasswd -a […]
Shlomi Noach is DBA, authorized MySQL instructor software developer and Winner of the MySQL Community Member of the Year, 2009. He has published his own collections of MySQL scripts and you might find them useful. Shlomi calls them the “openark kit“. The available tools are: oak-apply-ri: apply referential integrity on two columns with parent-child relationship. […]