July 23, 2014

Percona Server 5.6.16-64.2 is now available

Percona is glad to announce the release of Percona Server 5.6.16-64.2 on March 25th, 2014. Downloads are available here and from the Percona Software Repositories. Based on MySQL 5.6.16, including all the bug fixes in it, Percona Server 5.6.16-64.1 is the current GA release in the Percona Server 5.6 series. All of Percona’s software is […]

Notes from the Newb

Notes from the Newb. I’m relatively new to MySQL having come from the world of embedded micro-databases, and though I’m pretty familiar with a number of database systems, I’ve discovered that I have a lot to learn about MySQL. As a new member to the Percona team, I thought I’d have an ongoing blog theme […]

Changing an async slave of a PXC cluster to a new Master using 5.6 and GTID

Before Percona XtraBackup 2.1.7 and Percona XtraDB Cluster 5.6.15-25.3, rsync was the only SST method supporting GTID in the way that it was possible to move an asynchronous slave from one Galera node to another one (related bug). Indeed, previous versions of Percona XtraBackup didn’t copy any binary log and due to that, moving the […]

Quick installation guide for Percona Cloud Tools for MySQL

Here in Percona Support, we’re receiving several requests per day for help with Percona Cloud Tools installation steps. So I decided to prepare a step-by-step example of the installation process with some comments based on experience.  Percona Cloud Tools is a hosted service providing access to query performance insights for all MySQL uses. After a […]

Percona Server: Improve Scalability with Percona Thread Pool

By default, for every client connection the MySQL server spawns a separate thread which will process all statements for this connection. This is the ‘one-thread-per-connection’ model. It’s simple and efficient until some number of connections N is reached. After this point performance of the MySQL server will degrade, mostly due to various contentions caused by […]

Finding a good IST donor in Percona XtraDB Cluster 5.6

Gcache and IST The Gcache is a memory-based cache of recent Galera transactions that is local to each node in a cluster.  If a node leaves and rejoins the cluster, it can use the gcache from another node that stayed in the cluster (i.e., its donor node) to fetch the transactions it missed (IST) as […]

Percona Server 5.6.15-63.0 is now available

Percona 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 Repositories. Based on MySQL 5.6.15, including all the bug fixes in it, Percona Server 5.6.15-63.0 is the current GA release in the Percona Server 5.6 series. All of Percona’s software is […]

Percona 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, doing the backup on my slave, I encountered this problem:

This is related to a bug posted by my colleague George https://bugs.launchpad.net/percona-xtrabackup/+bug/1177201. While I was […]

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 current GA (Generally Available) stable release in the 2.1 series. Percona XtraBackup is an open source, free MySQL hot backup software that performs non-blocking […]

Percona Playback 0.7 is now available

Percona is glad to announce the release of Percona Playback 0.7 for MySQL on October 22nd, 2013. Downloads are available from our download site and Percona Software Repositories. Percona Playback for MySQL is a tool for replaying the load of one database server to another. Currently it can read queries from MySQL query-log and MySQL […]