Shard-Query is an open source tool kit which helps improve the performance of queries against a MySQL database by distributing the work over multiple machines and/or multiple cores. This is similar to the divide and conquer approach that Hive takes in combination with Hadoop. Shard-Query applies a clever approach to parallelism which allows it to […]
As Calpont announced availability of InfiniDB I surely couldn’t miss a chance to compare it with previously tested databases in the same environment. See my previous posts on this topic: Analyzing air traffic performance with InfoBright and MonetDB Air traffic queries in LucidDB I could not run all queries against InfiniDB and I met some […]
The web is going the way of utf8. Drizzle has chosen it as the default character set, most back-ends to websites use it to store text data, and those who are still using latin1 have begun to migrate their databases to utf8. Googling for “mysql convert charset to utf8″ results in a plethora of sites, […]
One of our customers gave me a chance to run some benchmarks on 24-core (intel cpu based) server, and I could not miss it and ran few CPU-bound tasks there. The goal of benchmarks was investigation of InnoDB-plugin and XtraDB scalability in CPU-bound load.
As you may know Sun / MySQL made release of community 5.0.75 only as source code release. We made binaries with our patchset. Patches are mostly equal to build 10 http://www.mysqlperformanceblog.com/2008/12/11/mysql-binaries-percona-build10/, only change: it includes bugfix for https://bugs.launchpad.net/percona-patches/+bug/308849 You can download binaries (RPMS x86_64) and sources with patches here http://www.percona.com/mysql/5.0.75-b11/
After some discussions on the OpenSQLCamp 2008 conference we decided to move our development to Launchpad, to be in stream with other MySQL related projects. We published our patches there https://code.launchpad.net/percona-patches, it is supposed to be main repository for the patches. We advise to use Launchpad bug system to report bugs and also for feature […]
Let us talk few more about disks. You might have read my previous post and Matt’s Reply and it looks like there are few more things to clarify and explain. Before I get to main topic of the article lets comment on IO vs Disk question. If you look at Disk Based databases all data […]