Handling long-running queries in MySQL with Percona XtraBackup
I recently had a case where replication lag on a slave was caused by a backup script. First reaction was to incriminate the additional pressure on the disks, but it turned out to be more subtle:...
View ArticleClik here to view.
Innotop: A real-time, advanced investigation tool for MySQL
GUI monitoring tools for MySQL are not always suitable for all our needs or situations. Most of them are designed to provide historical views into what happens to our database over time rather then...
View ArticleClik here to view.
The power of MySQL’s GROUP_CONCAT
In the very early days of Percona Vadim wrote very nice post about GROUP_CONCAT.But I want to show you a bit more about it.When is GROUP_CONCAT useful? Usually while working with Support customers I...
View ArticleHigh-availability options for MySQL, October 2013 update
table { border-collapse:collapse; } table, td, th { border:1px solid black; padding:1px; vertical-align:top; font-size:9px; } th { background-color:lightgray; } ul { padding:5px; margin:15px; }The...
View ArticleClik here to view.
Percona Server 5.6.14-62.0 is now available
Percona Server version 5.6.14-62.0Percona is glad to announce the release of Percona Server 5.6.14-62.0 on October 24th, 2013 (Downloads are available here and from the Percona Software...
View ArticlePercona XtraDB Cluster 5.5.34-23.7.6 is now available
Percona is glad to announce the release of Percona XtraDB Cluster 5.5.34-23.7.6 on November 4, 2013. Binaries are available from the downloads area or from our software repositories.Bugs Fixed:Fixed...
View ArticleHow to recover an orphaned .ibd file with MySQL 5.6
A few years ago Yves Trudeau and Aleksandr Kuzminsky wrote posts about different ways for recovering orphaned .ibd files:Connecting orphaned .ibd filesA recovery trivia or how to recover from a lost...
View ArticleIncremental backups with log archiving for XtraDB
Percona Server 5.6.11-60.3 has introduced a new feature called Log Archiving for XtraDB. This feature makes copies of the old log files before they are overwritten, thus saving all the redo log for a...
View ArticlePercona XtraDB Cluster 5.6.14-25.1 Beta is now available
Percona is glad to announce the first Beta release of Percona XtraDB Cluster 5.6 on November 21st, 2013. Binaries are available from downloads area or from our software repositories.Based on Percona...
View ArticleClik here to view.
Percona XtraBackup 2.1.6 is now available
Percona is glad to announce the release of Percona XtraBackup 2.1.6 on November 25th, 2013. Downloads are available from our download site here and Percona Software Repositories.This release is the...
View ArticlePercona XtraBackup – A workaround to the failed assertion bug
I recently conducted a test backup of my “master-slave” setup in my VirtualBox as I was migrating from Percona Server 5.6.12 to version 5.6.13-rel61.0 with Percona XtraBackup v2.2.0 rev. 4885. However,...
View ArticlePercona XtraDB Cluster 5.5.34-25.9 is now available
Percona is glad to announce the release of Percona XtraDB Cluster 5.5.34-25.9 on December 4, 2013. Binaries are available from the downloads area or from our software repositories.Based on Percona...
View ArticleLinux performance tuning tips for MySQL
Because most MySQL production systems probably run on Linux, I’ve decided to place the most important Linux tuning tips that will help improve MySQL performance. There is nothing new here, most of them...
View ArticleClik here to view.
Percona Server 5.6.15-63.0 is now available
Percona Server version 5.6.15-63.0Percona is glad to announce the release of Percona Server 5.6.15-63.0 on December 19th, 2013 (Downloads are available here and from the Percona Software...
View ArticleInnoDB file formats: Here is one pitfall to avoid
UPDATED: explaining the role of innodb_strict_mode and correcting introduction of innodb_file_formatCompressed tables is an example of an InnoDB feature that became available with the Barracuda file...
View ArticleMySQL server memory usage troubleshooting tips
There are many blog posts already written on topics related to “MySQL server memory usage,” but nevertheless there are some who still get confused when troubleshooting issues associated with memory...
View ArticleClik here to view.
Percona Server: Thread Pool Improvements for Transactional Workloads
ul.b {list-style-type:square;}In a previous thread pool post, I mentioned that in Percona Server we used an open source implementation of MariaDB’s thread pool, and enhanced/improved it further. Below...
View ArticlePERFORMANCE_SCHEMA vs Slow Query Log
A couple of weeks ago, shortly after Vadim wrote about Percona Cloud Tools and using Slow Query Log to capture the data, Mark Leith asked why don’t we just use Performance Schema instead? This is an...
View ArticleClik here to view.
Percona XtraDB Cluster 5.6.15-25.4 is now available
Percona is glad to announce the new release of Percona XtraDB Cluster 5.6 on February 20th 2014. Binaries are available from downloads area or from our software repositories.Based on Percona Server...
View ArticleClik here to view.
The MySQL ARCHIVE storage engine – Alternatives
In my previous post I pointed out that the existing ARCHIVE storage engine in MySQL may not be the one that will satisfy your needs when it comes to effectively storing large and/or old data. But are...
View Article