April 17, 2014

September: A busy month for MySQL events

Now with summer winding down and school back in session, we get into a very busy time with many great opportunities to discover more about MySQL with several excellent MySQL events. At first I wanted to cover all autumn events here but if I did that this post would be far too long. So instead I’m […]

MySQL Security Webinar: Follow-up Q&A

Thanks to everyone who attended last week’s webinar on MySQL security; hopefully you’ve all gone out and set SELinux to enforcing mode if you weren’t already running that way. If you weren’t able to attend, the recording and slides are available for viewing/download. But now, without further ado, here are the questions which we didn’t […]

Can you really be Bias free ?

When we started Percona about 7 years ago one of the ideas behind the business was to provide customer focused services, which I refereed to as “bias free” at the time. What do I mean by customer focused services ? Is not this something most of the company out there would claim ? Not in […]

Percona Server 5.6 Webinar follow-up and Q&A

Good news everyone! I recently presented a webinar: Percona Server 5.6: Enterprise Grade MySQL. It was also recorded so you can watch along or view the slide deck. As with all my talks, I am not simply reading the slides so it really is worth to listen to the audio rather than just glance through […]

Percona XtraDB Cluster operations MySQL Webinar follow-up questions anwsered

Thanks to all who attended my PXC Operations webinar last week.  If you missed it you can watch the video here. I wanted to take some time to answer the questions I didn’t get to during the broadcast. Is there an easy way to leverage the xtrabackup SST and IST in an xtradb cluster to […]

Virident vCache vs. FlashCache: Part 2

This is the second part in a two-part series comparing Virident’s vCache to FlashCache. The first part was focused on usability and feature comparison; in this post, we’ll look at some sysbench test results. Disclosure: The research and testing conducted for this post were sponsored by Virident. First, some background information. All tests were conducted […]

The write cache: Swap insanity tome III

Swapping has always been something bad for MySQL performance but it is even more important for HA systems. It is so important to avoid swapping with HA that NDB cluster basically forbids calling malloc after the startup phase and hence its rather complex configuration. Probably most readers of this blog know (or should know) about […]

MySQL 5.6 – InnoDB Memcached Plugin as a caching layer

A common practice to offload traffic from MySQL 5.6 is to use a caching layer to store expensive result sets or objects.  Some typical use cases include: Complicated query result set (search results, recent users, recent posts, etc) Full page output (relatively static pages) Full objects (user or cart object built from several queries) Infrequently […]

DotOrg Pavilion and MySQL Community Awards at Percona Live MySQL Conference and Expo 2013

Percona Live MySQL Conference and Expo 2013 – the largest MySQL Conference event of the year is getting close and we’re now announcing two community activities which are going to happen at this event. Call of DotOrg Pavilion exhibitors is open – DotOrg pavilion is a free expo hall space for non commercial projects relevant […]

Percona XtraDB Cluster reference architecture with HaProxy

This post is a step-by-step guide to set up Percona XtraDB Cluster (PXC) in a virtualized test sandbox. I used Amazon EC2 micro instances, but the content here is applicable for any kind of virtualization technology (for example VirtualBox). The goal is to give step by step instructions, so the setup process is understandable and […]