October 23, 2014

Solving RPM installation conflicts in CentOS 5 and CentOS 6

Lately we’ve had many reports of the RPM packages for CentOS 5 (mostly) and CentOS 6 having issues when installing different combinations of our products, particularly with Percona Toolkit for MySQL. Examples of bugs related to these issues are lp:1031427 and lp:1051874. These problems arise when trying to install a package from the distribution that […]

Percona Server and XtraBackup Weekly News, April 18th

Last week wasn’t so active in terms of new development, because many of us were at the MySQL conference, of course. However, we did push out the XtraBackup 1.6 release, and began work on backporting some features from MySQL 5.6 to 5.1 for a certain large customer. Several of the features we’ve added in 5.0 […]

Data Corruption, DRBD and story of bug

Working with customer, I faced pretty nasty bug, which is actually not rare situation , but in this particular there are some lessons I would like to share. The case is pretty much described in bug 55981, or in pastebin. Everything below is related to InnoDB-plugin/XtraDB, but not to regular InnoDB ( i.e in MySQL […]

Percona Server security fix releases

As you may know MySQL ® announced 5.0.91 and 5.1.47 with serious security fixes, so we provide binary releases of Percona Server 5.0 and Percona Server / XtraDB 5.1 with security patches. Fixed bugs: Bug#53371, CVE-2010-1848 Bug#53237, CVE-2010-1850 Bug#50974, CVE-2010-1849 Release Percona Server 5.0.91-rel22 is available in our download area: http://www.percona.com/downloads/Percona-Server-5.0/Percona-Server-5.0.91-22/ Release Percona Server/XtraDB 5.1.45-rel10.2 […]

Updated msl (microslow) patch, installation walk-through!

For a couple of months there have been no updates to our msl patch, however recently I managed some time to change this. The functionality was extended a little bit and what’s even more important the patch is available for all the recent MySQL releases. To remind anyone who has not yet come across this […]

InnoDB auto-inc scalability fixed

There was long played scalability issue with InnoDB auto-increment field. For details check Bug 16979. In short words the problem is in case of insert into table with auto-increment column the special AUTO_INC table level lock is obtained, instead of usual row-level locks. With many concurrent inserted threads this causes serious scalability problems, and in […]

Presentations

This page is not updated anymore. For new presentations, please check the presentations page on our company website. We love speaking at conferences and other events. Please contact us if you’d like us to present at yours! We can also give internal presentations for your company or group. Sphinx search engine for RDBMS Egypt, December […]