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Test your knowledge: Percona XtraDB Cluster (PXC) quiz

 | April 28, 2015 |  Posted In: High-availability, Insight for DBAs, MySQL, Percona XtraDB Cluster

I often talk with people who are very interested in the features of Percona XtraDB Cluster (PXC) such as synchronous and parallel replication, multi-node writing and high availability. However some get confused when operating a real PXC cluster because they do not fully realize the implications of these features. So here is a fun way […]

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MySQL shell prompt vs MongoDB shell prompt

 | April 1, 2015 |  Posted In: MySQL

Recently Todd Farmer shared an interesting story about the mysql command line prompt in MySQL 5.7: how it was changed to provide more context and why the change was finally reverted. This made me think that after using the command line client for MongoDB for awhile, I would love seeing a much more modern mysql […]

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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 for MySQL, 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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More on MySQL 5.6 multi-threaded replication and GTIDs (and Feb. 25 webinar)

 | February 19, 2015 |  Posted In: MySQL, Percona XtraBackup

In a previous post, titled “Multi-threaded replication with MySQL 5.6: Use GTIDs,” I explained that using GTID replication is almost a requirement when using MySQL 5.6 MTS. Let’s see now how to perform the day-to-day operations when MTS and GTIDs are both enabled. (I’ll also be presenting a related webinar next week titled “Multi-threaded Replication […]

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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 for MySQL

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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