September 2, 2014

Percona XtraBackup 1.6.4

Percona is glad to announce the release of Percona XtraBackup 1.6.4 on 19 December, 2011 (Downloads are available here and from the Percona Software Repositories). These release notes are (as always) available from the online Percona XtraBackup documentation. This release is purely composed of bug fixes and is the current stable release of Percona XtraBackup. In this release we now […]

ACTIVE with Locks – Now thats a problem !

One of item I always look at SHOW ENGINE INNODB STATUS to see if there are any transactions spending very long time in ACTIVE state. In the perfect world if you’re running online system you should not see transactions spending more than couple of seconds in ACTIVE state. Especially ACTIVE transactions which do not currently […]

Ultimate MySQL variable and status reference list

I am constantly referring to the amazing MySQL manual, especially the option and variable reference table. But just as frequently, I want to look up blog posts on variables, or look for content in the Percona documentation or forums. So I present to you what is now my newest Firefox toolbar bookmark: an option and […]

New SpecJAppServer results at MySQL and Sun.

As you likely have seen Sun has posted the new SpecJAppServer Results More information from Tom Daly can be found here These results are quite interesting for me as I worked on some of the previous SpecJAppServer Benchmarks several years ago while being employed by MySQL. These are great results, plus they can be relevant […]

How to track down the source of Aborted_connects

Yesterday I helped someone who was seeing a lot of “server has gone away” error messages on his website. While investigating this problem, I noticed several things amiss, which appeared to be related but really weren’t. The biggest measurable sign was