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Stewart Smith
Stewart Smith has a deep background in database internals including MySQL, MySQL Cluster, Drizzle, InnoDB and HailDB. he is also one of the founding core developers of the Drizzle database server. He served at Percona from 2011-2014. He is a former Percona employee.

Announcing Percona XtraBackup 2.0.2

Percona is glad to announce the release of Percona XtraBackup 2.0.2 on August 13th, 2012. Downloads are available from our download site here and Percona Software Repositories. This release is the current GA (Generally Available) stable release in the 2.0 series. Bugs Fixed: Fixed false positive test suite failures with grep 2.10. Bug fixed #996483 (Alexey Kopytov). Incremental backup would […]

Percona Playback 0.3 development release

I’m glad to announce the third Percona Playback release – another alpha release of a new software package designed to replay database server load. The first two versions were released in April, just in time for my talk at the Percona Live MySQL Conference and Expo: Replaying Database Load with Percona Playback. This is still […]

Percona Server 5.5.25-27.0 release delayed

Due to a bug in upstream MySQL ( http://bugs.mysql.com/bug.php?id=65745 ), we’ve decided to delay the release of the next Percona Server release until it is resolved. We had originally expected to release Percona Server 5.5.25-27.0 today and instead I’m informing you that we are not. Quoting Hartmut, who reported the bug: An UPDATE that should only modify […]

Where Percona software goes before it’s released

Where does software go while it’s waiting for release? The answer is: our experimental repository! For anywhere from a few days to a week before we release them, we stage our software releases in the TESTING download area and in separate software repositories for Debian/Ubuntu and CentOS/RHEL. This is so that we can co-ordinate things such […]

Announcing Percona Server 5.1.63-13.4

Percona is glad to announce the release of Percona Server 5.1.63-13.4 on May 24th, 2012 (Downloads are available from Percona Server 5.1.63-13.4 downloads and from the Percona Software Repositories). Based on MySQL 5.1.63, including all the bug fixes in it, Percona Server 5.1.63-13.4 is now the current stable release in the 5.1 series. All of Percona‘s software is open-source and free, all the […]

Percona welcomes Drizzle 7.1

The Drizzle team has published the first Drizzle 7.1 stable release. The announcement on the Drizzle blog covers some of the major improvements in this release over the previous stable release, Drizzle 7.0. I plan to write a variety of blog posts on each of the new features over the coming weeks. Major features include: Multi […]

Announcing Percona XtraBackup 2.0.0 GA

I’m really excited to today announce the first GA (Generally Available; i.e. stable) release of Percona XtraBackup 2.0. We have worked hard since our last major release on improving the reliability and user experience of Percona XtraBackup as well as adding features to make it better suited to more environments. The 2.0.0 release contains no […]

Announcing Percona XtraBackup 1.6.6

I am happy to also announce the latest minor release in the Percona XtraBackup 1.6 series. We recognise that not everybody will want or be able to make the leap to our new major release, Percona XtraBackup 2.0 and so we’re also releasing Percona XtraBackup 1.6.6. This is a minor release and source code and […]

Percona XtraBackup 1.9.2 released (Beta)

Percona is glad to announce the release of Percona XtraBackup 1.9.2 on 28th March 2012. Downloads are available from our download site here. This is a late BETA release in the process of going towards Percona XtraBackup 2.0.0. This is a BETA quality release and is not inteded for production. If you want a high quality, Generally Available […]

Announcing Percona XtraBackup 1.9.1

Percona is glad to announce the second beta release towards Percona XtraBackup 2.0! We call this version 1.9.1 as we are using the 1.9.x version numbers for betas of 2.0 to clearly differentiate beta releases from the final 2.0 release. We do not recommend using Beta releases in production. Link to BETA version and Release notes.

Announcing Percona XtraBackup 1.6.5

Percona is glad to announce the release of Percona XtraBackup 1.6.5 on 10 February, 2012 (Downloads are available here and from the Percona Software Repositories). This release is purely composed of bug fixes and is the current stable release of Percona XtraBackup. There are some important bug fixes around incremental backups, parallel backups and backups on databases with the system […]

Announcing Drizzle Day, Fri 13th April 2012

Percona is proud to sponsor the 4th Drizzle Day, this year being held on the 13th April, the day after the Percona Live MySQL Conference and Expo. When: Friday, April 13th 2012 from 9:30 am Where: Cypress room, Mezzanine Level, Hyatt Regency Santa Clara (5101 Great America Parkway) What: Drizzle Day is a day to learn about Drizzle, how […]

linux.conf.au 2012 roundup

I spent last week at linux.conf.au in Ballarat, Victoria (that’s the Victoria in Australia, not wherever else there may be one) which is only a pleasant two hour drive from my home town of Melbourne (Australia, not Florida). I sent an email internally to our experts detailing bits of the conference that may interest them […]

Optimizing InnoDB for creating 30,000 tables (and nothing else)

Once upon a time, it would have been considered madness to even attempt to create 30,000 tables in InnoDB. That time is now a memory. We have customers with a lot more tables than a mere 30,000. There have historically been no tests for anything near this many tables in the MySQL test suite. So, […]

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 […]

Percona Server 5.5.18-23.0: Now with Group Commit!

Percona is glad to announce the release of Percona Server 5.5.18-23.0 on December 19th, 2011 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.5.18, including all the bug fixes in it, Percona Server 5.5.18-23.0 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 can […]

Percona Server 5.1.60-13.1

Percona is glad to announce the release of Percona Server 5.1.60-13.1 on December 16, 2011 (Downloads are available from Percona Server 5.1.60-13.1 downloads and from the Percona Software Repositories). Based on MySQL 5.1.60, including all the bug fixes in it, Percona Server 5.1.60-13.1 is now the current stable release in the 5.1 series. All of […]

MySQL opening .frm even when table is in table definition cache

or… “the case of Stewart recognizing parameters to the read() system call in strace output”. Last week, a colleague asked a question: I have an instance of MySQL with 100 tables and the table_definition_cache set to 1000. My understanding of this is that MySQL won’t revert to opening the FRM files to read the table […]

Bug#12704861

As Mark pointed out, there isn’t a lot of detail in the release notes about what could potentially be a very serious problem that is fixed in MySQL 5.1.60. I’ll repeat here the full documentation from the release notes: “InnoDB Storage Engine: Data from BLOB columns could be lost if the server crashed at a precise […]