This is part two on a two-part series on the performance implications of in-flight data encryption with MySQL. In the first part, I focused specifically on the impact of using MySQL’s built-in SSL support with some rather surprising results. Certainly it was expected that query throughput would be lower with SSL than without, but I was rather surprised by the magnitude of the performance hit incurred at connection setup time. These results naturally lended themselves to some further investigation; in particular, I wanted to compare performance differences between MySQL’s built-in SSL encryption facilities and external encryption technologies, such as SSH tunneling. I’ll also be using this post to address a couple of questions posed in the comments on my original article. So, without further ado….

Test Environment

The …

We are announcing the new MySQL for Developers course. This training:

• Takes advantage of both SQL and NoSQL
• Shows you how to plan, design and implement applications
• Brings you realistic examples, interactive instruction and hands-on exercises using Java and PHP
• Covers MySQL 5.6 features including optimizer improvements
• Helps you prepare for the MySQL 5.6 Developer certification.

You can take this course as a:

• Live-virtual event: Take this course from your own office; no travel required. You can choose from a selection of events on the …

Ahoi,Attending DOAG 2013 next week, Im going to give two talks (Applikationsvirtualisierung mit LXC and MySQL Replikation).Also Im invited to attend a MySQL Expert Panel, where you can let a bunch of MySQL Experts discuss your questions ;)DOAG is afaik the biggest Oracle Event (and even not driven by Oracle) in Europe.A good place to have nice discussions and learn a lot of new stuff :)
Hope to see youErkan Yanar

Economist says that Physics suggest that storms will get worse as the planet warms. Typhoon Haiyan in Philippines, bush-fires in Australia, floods in China, and extreme unpredictable weather across the planet is a sober reminder. Good news is that technology and awareness is rising, and so is the data. Database technologies are playing their part to intelligently store that data and enabling the stakeholders to analyze and get meaningful results to predict and counter the extreme conditions. This Log Buffer Edition appreciates these efforts.

Big Data:

Big Data Tools that You Need to Know About – Hadoop & NoSQL.

Dave Stokes is …

One of the most common errors in development is where a loop or a retrieval by index falls short or long by one unit, usually because of an oversight or a logic in coding.

Of the following snippets, which one will run 10 times?

/* #1 */    for (N = 0 ; N < 10; N++) printf("%d\n", N);

/* #2 */    for (N = 0 ; N <= 10; N++) printf("%d\n", N); 

/* #3 */    for (N = 1 ; N <= 10; N++) printf("%d\n", N);

/* #4 */    for (N = 1 ; N < 10; N++) printf("%d\n", N);

The question is deceptive, as there are two snippets that will run 10 times (1 and 3). But they will print different numbers. If you ware aiming for numbers from 1 to 10, only #3 is good.

After many years of programming, off-by-one errors are rare in my code, and I have been able to spot them or prevent them at first sight. That’s why I feel uneasy when I look at the way parallel replication is enabled in …

Thanks to everyone who participated in Percona Live London 2013. We had a great event with nearly 20% higher attendance versus 2012. This year’s conference featured participation by representatives from Oracle including a compelling keynote by Tomas Ulin. The conference featured 10 tutorial sessions on Monday and 4 keynotes and 30 breakout sessions on Tuesday.

I personally found the keynotes highly interesting. Peter Zaitsev of Percona discussed the changing face …

I have spent the better part of the last month at Big Data conferences trying to see behind the $2.5 million in marketing smoke to see what is really going to be showing up on the to-do list of DBAs. The first bit of news is that half the vendors at shows like Strata or Big Data Techon will probably be gone by this time next year. So picking a vendor right now is a little iffy. Hadoop’s ecosystem is flourishing and will surely be around for some time but the vendors are playing musical chairs.

But we are Open Source and we do not need vendors! Well, yes and no. The good folks at Cloudera and Horton Works have done you a big favor by providing wonderful tutorials that are worth your time to see. Recently two former MySQL-ers, Sarah Sproehnle and Ian Wrigley, have put together Udacity that concisely teaches Hadoop technology and Cloudera deserves a round of applause for this …

November 14, 2013 By Severalnines

Database schema changes are usually not popular among DBAs or sysadmins, not when you are operating a cluster and cannot afford to switch off the service during a maintenance window. There are different ways to perform schema changes, some procedures being more complicated than others. We invited Seppo from the Codership team to tell us about the options. If you’d like to learn more, please register for our new webinar.

Webinar: Galera Cluster Best Practices - Zero Downtime Schema Changes

Tuesday, December 3rd 2013

Register now - Europe/MEA/APAC

…

"Amazon to add Postgres to its most-favored database list" says GigaOM:
http://gigaom.com/2013/11/12/amazon-to-add-postgres-to-its-most-favored-database-list/"To many this is no-brainer. Amazon wants to support the databases that its developer audiences want to use. This is simply a  case of Amazon responding to user demand and oh-by-the-way making its cloud infrastructure more attractive to a specific target audience. Some say Postgres has gained traction since Oracle’s acquisition of MySQL via its Sun buyout a few years back."
Some people I know said "yea, the writing was on the wall...". Well, was it?? Really? 
AWS finally got the time to "plan" for supporting Postgres now? After supporting MySQL, Oracle and SQL Servers for almost 3 years?! Writing was on the wall? Where can I find a wall …

Oracle MySQL participated at the Open Source India at the NIMHANS convention center on 11-13 Nov 2013 (http://osidays.com/osidays/).

This is the third year we participated and yours truly had the pleasure to deliver the keynote about MySQL. Was also invited to participate in a panel discussion on the importance of certification.

OSI has become the meeting place for all open source professionals at Bangalore. It was a pleasure to meet with old friends who are passionate about open source.

There were a number of interesting talks. Many open source companies had their booths at the exhibition center and all seemed to be buzzing with activity.

We were informally informed that there were about 800 attendees on Day 1.

We received many positive comments about the panel discussion on the importance of certification. The discussion concluded that …