Using Percona Server 5.6 with the Docker open-source engine
All of Percona’s open-source software products, in one place, to download as much or as little as you need.
OOM relation to vm.swappiness=0 in new kernel
I have recently been involved in diagnosing the reasons behind OOM invocation that would kill the MySQL server process. Of course these servers were primarily running MySQL. As such the MySQL server process was the one with the largest amount of memory allocated. But the strange thing was that in all the cases, there was no swapping activity seen and there were enough pages in the page cache. Iron
A conversation with 5 Facebook MySQL gurus
Facebook, the undisputed king of online social networks, has 1.23 billion monthly active users collectively contributing to an ocean of data-intensive tasks – making the company one of the world’s top MySQL users. A small army of Facebook MySQL experts will be converging on Santa Clara, Calif. next week where several of them are leading sessions at the Percona Live MySQL Conference and Expo. I had
Introducing backup locks in Percona Server
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Percona Server 5.6.16-64.0 is now available
Percona Server version 5.6.16-64.0 Percona is glad to announce the release of Percona Server 5.6.16-64.0 on March 10th, 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 5.6.16-64.0 is the current GA release in the Percona Server 5.6 series. All of Percona’s software is open-source and free, all t
Percona Server: Thread Pool Improvements for Transactional Workloads
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 I would like to describe some of these improvements for transactional workloads. When we were evaluating MariaDB’s thread pool implementation, we observed that it improves scalability for AUTOCOMMIT statements. However, it does n
Multiple column index vs multiple indexes with MySQL 5.6
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Percona Server 5.6.15-63.0 is now available
Percona Server version 5.6.15-63.0 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 open-source and free, al
Download insightful MySQL presentations from Percona Live London 2013
The MySQL community came together last month for two days of outstanding technical tutorials and sessions at Percona Live London. And now many of those MySQL presentations are available for free download. This year’s London conference saw a 20 percent spike in attendance compared with last year, with MySQL professionals from 31 countries gathering in the U.K. capital for compelling keynotes (inclu
High Availability Options for MySQL - October 2013 Update
All of Percona’s open-source software products, in one place, to download as much or as little as you need.
A closer look at Percona Server 5.6
Yesterday we announced the GA release of Percona Server 5.6, the latest release of our enhanced, drop-in replacement for MySQL. Percona Server 5.6 is the best free MySQL alternative for demanding applications. Our third major release, Percona Server 5.6 offers all the improvements found in MySQL 5.6 Community Edition plus scalability, availability, backup, and security features some of which are f
Percona Server 5.6.13-61.0 first GA release is now available
Percona Server version 5.6.13-61.0 Percona is glad to announce the first GA (Generally Available) release of Percona Server 5.6.13-61.0 on October 7th, 2013 (Downloads are available here and from the Percona Software Repositories. Based on MySQL 5.6.13, including all the bug fixes in it, Percona Server 5.6.13-61.0 is the first GA release in the Percona Server 5.6 series. All of Percona‘s software
5 reasons why MySQL replication lag is flapping between 0 and XXXXX
Working day to day with Percona Remote DBA customers, we have been facing an issue from time to time when MySQL replication lag is flapping between 0 and XXXXX constantly – i.e. Seconds_Behind_Master is 0 for a few secs, then it’s like 6287 or 25341, again 0 and so on. I would like to note the 5 different scenarios and symptoms of this – some are obvious and some are not really. 1. Duplicate serve
Percona XtraBackup 2.0.7 for MySQL available for download
Percona XtraBackup 2.0.7 was released May 6. Percona is glad to announce the release of Percona XtraBackup 2.0.7 for MySQL on May 6, 2013. Downloads are available from our download site here and Percona Software Repositories. Percona XtraBackup is the world’s only open-source, free MySQL hot backup software that performs non-blocking backups for InnoDB and XtraDB databases. This release is the cur
MySQL 5.6 - InnoDB Memcached Plugin as a caching layer
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Installing Percona XtraDB Cluster 5.6 with the Docker open-source engine
16000 active connections - Percona Server continues to work when others die
How Percona tested Percona Server 5.6: A world premiere in advanced testing
Percona Server 5.6.14-62.0 is now available
Percona Server for MySQL 5.5.30-30.2 now available