Driven by popularity of previous post about Debian/Ubuntu builds of WebScaleSQL and long discussions during FOSDEM conference this weekend, PSCE engineering team decided to put even more effort into.

We would like to introduce:

• RPM packages available for download
• RedHat/CentOS repository

Architectures covered:

• x86 (32-bit)
• x86_64 (64-bit)

Please note that “WebScaleSQL does not currently maintain compatibility for anything except GNU/Linux x86_64.” (WebScaleSQL FAQ)”

RedHat/CentOS releases:

• CentOS 6
• CentOS 7

Packages can be downloaded from …

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 do this running on a medium spec machine – even a laptop?

The seniors amongst you may object “But… generating a crash or assertion is one thing – creating a repeatable testcase for the same is quite another.”

Introducing pquery, mtr_to_sql, reducer.sh (the pquery-enabled version), and more:

80+ coredumps per hour. Fully automatic testcase creation. Near-100% testcase reproducibility. C++ core. 15 Seconds run time per trial. Up to 20-25k lines of SQL executed per trial. CLI testcases. Compatible with sporadic issues. High-end automation of many aspects.

It all …

February 4, 2015 By Severalnines Check Out Our Latest Technical Resources for MySQL, MariaDB & MongoDB Clusters

Like every month, we have created new content and tools for you; here is a summary of what we’ve published. Please do check it out and let us know if you have any comments or feedback.

New Live Technical Webinars

A DevOps Guide to Database Infrastructure Automation for eCommerce

Tuesday, February 17th

Infrastructure automation isn’t easy, but it’s not rocket science either, says Riaan Nolan. Automation is a worthwhile investment for retailers serious about eCommerce, but deciding on which tools …

The MySQL grant syntax allows you to specify dynamic database names using the wildcard characters. This article explains the usecase of dynamic section of mysql grants.

The post MySQL grant syntax & dynamic database using wildcards first appeared on Change Is Inevitable.

UPDATE: I should clarify. This ticket is an internal ticket at DealNews. It is about what the defaults on our servers should be. It is not about what the defaults should be in MySQL. The frustration that UTF8 support in MySQL is only 3 bytes is quite real.

 This epic ticket of the day is brought to you by Joe Hopkinson.

#7940: Default charset should be utf8mb4
------------------------------------------------------------------------
 The RFC for UTF-8 states, AND I QUOTE:

 > In UTF-8, characters from the U+0000..U+10FFFF range (the UTF-16
 accessible range) are encoded using sequences of 1 to 4 octets.

 What's that? You don't believe me?! Well, you can read it for yourself
 here!

…

I’m happy to announce Go packages for MySQL. Particularly exciting is a new query fingerprint function which is very fast and efficient, but I’ll talk about that later. First, go-mysql is currently three simple Go packages for parsing and aggregating MySQL slow logs. If you’ve been following Percona development, you’ve no doubt heard of Percona Cloud Tools (PCT), a somewhat new performance management web service for MySQL.

One tool in PCT is “Query Analytics” which continuously analyzes query metrics from the slow log. The slow log provides the most metrics and therefore the most performance insight into MySQL. percona-agent, the open-source agent for PCT, uses …

Last week passed the 5th anniversary of the closing of Oracle's acquisition of MySQL. That also means that the 5 year term of the infamous 10 commitments to MySQL users that Oracle made to the EU commission expire.

Since I work for another database technology nowadays, I have made a point of not blogging about MySQL related issues anymore (and mostly do not follow MySQL close enough to say anything wise). But in 2009 I was so closely involved in the EU investigation into the Oracle-Sun merger, that I feel this is a topic I could write a retrospective on. For nostalgic reasons if nothing else... In any case, these commitments have very little practical relevance in 2015 anyway, so anything in this blog post is clearly more historical than about current state of anything in MySQL land.

read more

I will be presenting MySQL Fabric to the Triangle MySQL User Group in Raleigh on February 11th and then I will be speaking the next day at Percona University. Part of my first talk will have a live demo. Most presenters dread live demos as anything that can go wrong usually does go wrong and in very spectacular fashion to ensure humiliation, disgrace, and well deserved scorn.

To add to the pressure is a new laptop that is so far reluctant to perform well during the first two presentations of this year. Hopefully third presentation is a charm.

So how do you start with Fabric? First, download the MySQL Utilities. I am using the 1.5.2 version (1.6 Alpha is also …

I stopped working on MySQL at Sun Microsystems in late 2009 (after a lengthy period of garden leave), to join Monty Program Ab, and was greatly anticipating a MariaDB release that we could take to market. The first GA release of MariaDB came out February 1 2010 – MariaDB 5.1.42. Today is MariaDB Server’s 5th birthday!

We didn’t even want to call it GA back then — we referred to it as a “stable” release. We didn’t make our own builds because we figured source code tarballs were good enough; so builds were made and hosted at OurDelta. It took some months (around August 2010) when we moved release notes to the Knowledgebase (which you’ll notice has moved from kb.askmonty.org to its current location) from the old front page wiki …

We have been looking at the WebScaleSQL project with great excitement. As with any new enhancements to the MySQL world, we need to test extensively to ensure we can give PSCE customers the best advice possible. Since this project is source only, we decided to add WebScaleSQL builds to our repo, so we could examine the changes being introduced by all the different collaborators.

So what is WebscaleSQL?

WebScaleSQL is a collaboration among engineers from several companies that face the same challenges in deploying MySQL at scale, and seek greater performance from a database technology tailored for their needs.

— WebScaleSQL, Frequently Asked Questions

What makes this project so special, is the level of collaboration between some of the most …