September 1, 2014

MySQL 5.5.4 in tpcc-like workload

MySQL-5.5.4 ® is the great release with performance improvements, let’s see how it performs in tpcc-like workload. The full details are on Wiki page http://www.percona.com/docs/wiki/benchmark:mysql:554-tpcc:start I took MySQL-5.5.4 with InnoDB-1.1, tpcc-mysql benchmark with 200W ( about 18GB worth of data), InnoDB log files are 3.8GB size, and run with different buffer pools from 20GB to […]

Call for opinions: Do we need MySQL 5.0 with MySQL 5.4 performance

MySQL 5.4 comes with Innodb engine which seems to have much better performance than MySQL 5.0 – this is due to locking and IO patches from Google integrated in this release (which are similar to appropriate Percona patches) as well as some unique fixes such as different innodb_thread_concurrency handling and other optimization. Should we take […]

Binaries of MySQL 5.0.33 Community release for AMD64 / EM64T

Update 3 June 2008: We have removed the builds below, since they are quite obsolete and no one has posted comments about them since more than a year ago. Great news are MySQL finally released new Community release – MySQL 5.0.33, which however as promised comes without Binaries. This version also does not have any […]

Galera data on Percona Cloud Tools (and other MySQL monitoring tools)

I was talking with a Percona Support customer earlier this week who was looking for Galera data on Percona Cloud Tools. (Percona Cloud Tools, now in free beta, is a hosted service providing access to query performance insights for all MySQL uses.) The customer mentioned they were already keeping track of some Galera stats on Cacti, and […]

Percona Server 5.6.20-68.0 is now available

Percona is glad to announce the release of Percona Server 5.6.20-68.0 on August 29, 2014. Download the latest version from the Percona web site or from the Percona Software Repositories. Based on MySQL 5.6.20, including all the bug fixes in it, Percona Server 5.6.20-68.0 is the current GA release in the Percona Server 5.6 series. All of Percona’s […]

Percona Server 5.5.39-36.0 is now available

Percona is glad to announce the release of Percona Server 5.5.39-36.0 on August 29, 2014 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.5.39, including all the bug fixes in it, Percona Server 5.5.39-36.0 is now the current stable release in the 5.5 series. All of Percona‘s software is open-source and free, all the details of the release […]

OpenStack Trove Day 2014 Recap: MySQL and DBaaS

I just returned from a week in Cambridge, Massachusetts where I was attending the OpenStack Trove Day and the Trove mid-cycle meetup, both sponsored by the great folks at Tesora. I am relatively new to the OpenStack and Trove arenas so this was a fantastic opportunity for me to learn more about the communities, the […]

Trawling the binlog with FlexCDC and new FlexCDC plugins for MySQL

Swanhart-Tools includes FlexCDC, a change data capture tool for MySQL. FlexCDC follows a server’s binary log and usually writes “changelogs” that track the changes to tables in the database. I say usually because the latest version of Swanhart-Tools (only in github for now) supports FlexCDC plugins, which allow you to send the updates to a remote […]

mysqld_multi: How to run multiple instances of MySQL

The need to have multiple instances of MySQL (the well-known mysqld process) running in the same server concurrently in a transparent way, instead of having them executed in separate containers/virtual machines, is not very common. Yet from time to time the Percona Support team receives a request from a customer to assist in the configuration of […]

A closer look at the MySQL ibdata1 disk space issue and big tables

A recurring and very common customer issue seen here at the Percona Support team involves how to make the ibdata1 file “shrink” within MySQL. I can only imagine there’s a degree of regret by some of the InnoDB architects on their design decisions regarding disk-space management by the shared tablespace* because this has been a big […]