Franck Leveneur gave a nice tutorial on MySQL stored procedures and functions at Yahoo! on Tuesday and the slides are now in: HTML, PDF. Navicat and ZManda offered license and discounts to attendees, and since we didn’t have a bowl … Continue reading →

Continuing my series on the Violin Memory 1010 I am turning my attention to the DBT2 benchmark which simulates an OLTP workload. I started with my typical “waffle” workload which is a 20 warehouse setup ( about 2.5 GB ) with a 768M buffer pool and I compared it to a 5G buffer pool with the same setup.  The ultimate goal or the nirvana state of any system is to have the performance of the storage system be as fast as having everything all in memory. The closer we can get the better off we are. The sad thing is even with the fastest of flash solutions we see times in the 70-300 microsecond response time range,  which is very  far off the nano second response time delivered by memory. That being said lets see how close we can get to a fully cached database:

I am including the Intel #’s for perspective here and to show just how close we can get full in memory speeds. The fact is I am comparing a potentially …

In a Financial Times report today about RedHat's quarterly earnings, Sam Ramji of Microsoft takes note of MySQL and its influence as a key component in the general move towards open-source software:

Larger deployments of open-source to firms that already run the technology in a small way might be the most that happens, due to the fact that recessions make IT managers worry about risk. For the same reasons, a recession is not the time to switch a workforce to a new technology.

Microsoft is counting on that, while accepting that every leading company will soon be running at least some open-source software.

“It’s a heterogeneous world,” said Microsoft’s Sam Ramji. While Microsoft continues to warn about the legal and economic perils of relying on Linux and similar systems, Mr Ramji’s role is to make sure …

In a Financial Times report today about RedHat's quarterly earnings, Sam Ramji of Microsoft takes note of MySQL and its influence as a key component in the general move towards open-source software:

Larger deployments of open-source to firms that already run the technology in a small way might be the most that happens, due to the fact that recessions make IT managers worry about risk. For the same reasons, a recession is not the time to switch a workforce to a new technology.

Microsoft is counting on that, while accepting that every leading company will soon be running at least some open-source software.

“It’s a heterogeneous world,” said Microsoft’s Sam Ramji. While Microsoft continues to warn about the legal and economic perils of relying on Linux and similar systems, Mr Ramji’s role is to make sure …

Sailfin is the open source implementation of Sun Glassfish Communications Server which basically is Glassfish with support for SIP servlets. It allows you to create converged communication services and has some interesting features that together with MySQL Cluster creates very a nice highly available and high performance service execution environment (a white paper on this at mysql.com). 

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This year I am again giving a MySQL Cluster Tutorial at the MySQL Conference and Expo. As those who have attended before can tell you, this is a hands on tutorial. I don’t just stand up the front and talk at you for a day, that would be very boring (for all of us). While there is a good amount of presented material (there is a decent amount of theory to get through), there is a large component that involves setting up a cluster, putting data in, getting data out, backup, restore.

So if you’re wanting to learn about MySQL Cluster in a nice and friendly hands-on environment, I can recommend coming to my tutorial.

The tutorial isn’t the be-all and end-all tutorial. It does not teach you everything. It does give you a decent introduction though.

Doing QA on the MySQL Proxy and the Enterprise tools, I started writing a Lua script to use with the proxy. The goal was to tell our monitoring agent that the server it was monitoring was very busy. It basically intercepts queries like SHOW GLOBAL VARIABLES or SHOW GLOBAL STATUS among others and returns a custom resultset. (More details on a future post)

It is still a work in progress, but I wanted to give the community access to it. After some emails on the MySQL Proxy Discuss mailing list, I created a project on Launchpad that will host this script …

While I’m in Melbourne in a few weeks for training I’m once again visiting my friends at Linux Users of Victoria (LUV). It’s been a while since my schedule coincided with their meeting schedule!

I’ve been invited to do one of the talks (Sandrine Balbo doing the other), and my topic is “Relax! A Failure is NOT an Emergency.” which is although somewhat MySQL-related not actually MySQL-specific.

This will be on Tuesday April 7th. You can find more detailed description and location/time info in the LUV announcement.

While I'm in Melbourne in a few weeks for training I'm once again visiting my friends at Linux Users of Victoria (LUV). It's been a while since my schedule coincided with their meeting schedule!

I've been invited to do one of the talks (Sandrine Balbo doing the other), and my topic is "Relax! A Failure is NOT an Emergency." which is although somewhat MySQL-related not actually MySQL-specific.

This will be on Tuesday April 7th. You can find more detailed description and location/time info in the LUV announcement.

Since we entered FeatureFreeze one and half month ago the Ubuntu developers have shifted their focus on fixing bugs. As such the archive hasn’t seen a lot of new package versions or shiny new features. Here are a few highlights from the archive that happened during last month:

Python 2.6 transition

One of the main focus of the MOTU team has been conducting the python 2.6 transition. Scott Kitterman and other MOTUs have uploaded numerous packages to the archive in order to get ready for python 2.6 in Jaunty.

Loads of bug fixes

Most of the uploads have been fixing bugs: bacula packages can now be installed successfully in Jaunty. The samba package has been updated twice to new upstream versions to fix the broken ‘force group’ option as well as saving files on Samba shares using MS Office 2007.

Karmic is known in …