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Q&A: Multi-threaded Replication in MySQL 5.6 and MySQL 5.7

 | March 13, 2015 |  Posted In: Insight for DBAs, MySQL, Percona Server, Percona XtraDB Cluster, Technical Webinars

My webinar “Multi-threaded Replication in MySQL 5.6 and 5.7” on February 25 generated several excellent questions following the presentation (available here for playback along with the slides). I didn’t have time to answer many of the questions during the session and so in this post I answer all of them. Thanks to everyone who attended! Q: […]

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3 handy tools to remove problematic MySQL processes

 | February 27, 2015 |  Posted In: Insight for DBAs, MySQL, Percona Server

DBAs often encounter situations where they need to kill queries to ensure there are no long-running queries on a MySQL server that would impact performance. Long-running queries can be the result of many factors. Fortunately, Percona Server contains some handy tools to remove problematic MySQL processes. I will highlight all of the tools via some […]

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Worrying about the ‘InnoDB: detected cycle in LRU for buffer pool (…)’ message?

and  | February 26, 2015 |  Posted In: InnoDB, Insight for DBAs, MySQL

If you use Percona Server 5.5 and you have configured it to use multiple buffer pool instances than sooner or later you’ll see the following lines on the server’s error log and chances are you’ll be worried about them:

Worry not as this is mostly harmless. It’s becoming a February tradition for me (Fernando) […]

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Online GTID rollout now available in Percona Server 5.6

 | February 10, 2015 |  Posted In: Insight for DBAs, MySQL, Percona Server

Global Transaction IDs (GTIDs) are one of my favorite features of MySQL 5.6. The main limitation is that you must stop all the servers at the same time to allow GTID-replication. Not everyone can afford to take a downtime so this requirement has been a showstopper for many people. Starting with Percona Server 5.6.22-72.0 enabling […]

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The future of MySQL quality assurance: Introducing pquery

 | February 4, 2015 |  Posted In: Insight for DBAs, Insight for Developers, MySQL, Quality Assurance

Being a QA Engineer, how would you feel if you had access to a framework which can generate 80+ crashes – a mix of hitting developer introduced assertions (situations that should not happen), and serious unforeseen binary crashes – for the world’s most popular open source database software – each and ever hour? What if you could […]

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Percona University: Back to school Feb. 12 in Raleigh, N.C.

 | January 27, 2015 |  Posted In: Big Data, Insight for DBAs, MariaDB, MySQL, OpenStack

About two years ago we held our first-ever Percona University event in Raleigh, N.C. It was a great success with high attendance and very positive feedback which led us to organize a number of similar educational events in different locations around the world. And next month we’ll be back where it all started. On February […]

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