I’ve been helping customers deploy and maintain MySQL (and variants) for the last couple of years and it has always been interesting to hear customer thoughts on how they want their servers installed. It has also been asked many times not only by our support and consulting customers, but widely from different forums and blogs [...]
Announcing Percona Server 5.1.65-14.0
September 4, 2012 By Leave a Comment
Percona is glad to announce the release of Percona Server 5.1.65-14.0 on September 4th, 2012 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.1.65, including all the bug fixes in it, Percona Server 5.1.65-14.0 is now the current stable release in the 5.1 series. All of Percona‘s software is open-source and free, all the details of the release can [...]
New variable slave_max_allowed_packet for slave servers
July 24, 2012 By 2 Comments
One month ago I wrote about how a big read_buffer_size could break the replication. The bug is not solved but now there is an official workaround to ease this problem using a new configuration variable: slave_max_allowed_packet This new variable will be available in 5.1.64, 5.5.26, and 5.6.6 and can establish a different limit on the [...]
Find unused indexes
June 30, 2012 By Leave a Comment
I wrote one week ago about how to find duplicate indexes. This time we’ll learn how to find unused indexes to continue improving our schema and the overall performance. There are different possibilites and we’ll explore the two most common here. User Statistics from Percona Server and pt-index-usage. User Statistics User Statistics is an improvement [...]
MySQL Upgrade Webinar Questions Followup
June 28, 2012 By 7 Comments
I did a Webinar about MySQL Upgrade – Best Practices Yesterday and there were some questions we could not answer during Webinar, following Jay’s Lead I decided to post them as a Blog Post. Q: Can you go directly MySQL 5.0 to 5.5 for MyISAM tables? MyISAM have not been getting any significant development since [...]
Percona Toolkit versions 2.0.5 and 2.1.2 released
June 12, 2012 By 1 Comment
The Percona Toolkit team is happy to announce the release of Percona Toolkit versions 2.0.5 and 2.1.2. These are bug-fix releases in the 2.0 and 2.1 series, respectively. These releases fix many dozens of bugs, and we suggest that users upgrade to the latest versions of the tools. The complete list of changes is on [...]
NO Security vulnerability in Percona Server / XtraDB Cluster provided binaries
June 11, 2012 By 13 Comments
Many of you heard of this nasty security vulnerability in MySQL, and as we are getting a lot of inquiries how does it affect Percona Server, I decided to address it in this post. The issue exists in the source code of MySQL 5.5.23 or earlier and MySQL 5.1.62 or earlier. The same is true [...]
Migrating to XtraDB Cluster Webinar follow up questions
June 6, 2012 By 3 Comments
Thanks to all who attended my webinar today. The session was recorded and will be available to watch for free soon here. There were a lot of great questions asked during the session, so I’d like to take this opportunity to try to answer a few of them: Q: Is there an easy way to [...]
Percona Server 5.5.21-25.1 released!
March 29, 2012 By 8 Comments
Percona is glad to announce the release of Percona Server 5.5.21-25.1 on March 30, 2012 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.5.21, including all the bug fixes in it, Percona Server 5.5.21-25.1 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 [...]
Faster Point In Time Recovery with LVM2 Snaphots and Binary Logs
February 23, 2012 By 3 Comments
LVM snapshots is one powerful way of taking a consistent backup of your MySQL databases – but did you know that you can now restore directly from a snapshot (and binary logs for point in time recovery) in case of that ‘Oops’ moment? Let me show you quickly how. This howto assumes that you already [...]
