This post was a bit of a test to see if I could write a serious post about a database platform called Hamster.  I think I just made it :)

With all the noise over key/value stores recently, we should keep in mind that this technology isn’t exactly new.  It is being applied to new problems, but many of the foundations have been around for decades.  Probably the oldest of them all, Berkley DB came into existence during the mid ‘80’s and now has over 200 million deployments (according to the Oracle web site).

HamsterDB, while not having the same pedigree of Berkley, has been steadily worked on by Christoph Rupp for the last 5 years.  I spoke to Christoph yesterday about his release of a new edition of …

This blog introduces a new application that will provide basic tracking of your running distance and generate charts to monitor progress. There are numerous similar applications that are already available/hosted and this is a very basic application. What's different about this ?

The first version of this application is built using JRuby, Ruby-on-Rails, GlassFish Gem, MySQL, and NetBeans IDE. This combination of technologies is a high quality Rails stack that is used in production deploymnet at various places. Still nothing different ?

A similar version of this application will be built using a variety of Web frameworks such as Java EE, Grails, …

This blog introduces a new application that will provide basic tracking of your running distance and generate charts to monitor progress. There are numerous similar applications that are already available/hosted and this is a very basic application. What's different about this ?

The first version of this application is built using JRuby, Ruby-on-Rails, GlassFish Gem, MySQL, and NetBeans IDE. This combination of technologies is a high quality Rails stack that is used in production deploymnet at various places. Still nothing different ?

A similar version of this application will be built using a variety of Web frameworks such as Java EE, Grails, …

This is the first post in a new series of "Kickfire Basics" blog posts by myself and others here at Kickfire.  This series will review the basics of the Kickfire appliance starting from this post describing how data is stored on disk, to future posts on topics such as loading data into the appliance and writing queries which best leverage the capabilities of the SQL chip.

The Kickfire Equation Column store + Compression + SQL Chip = performance

The Kickfire Analytic Appliance features the new KFDB storage engine which was built from scratch to handle queries over vast amounts of data.  KFDB is a column store in contrast to most MySQL storage engines which are row stores.  What follows is a description of our column oriented storage engine and how it improves performance over typical row stores.

This post concerns itself with the first part of the equation, the KFDB column store. …

Dear Community,

The build 17 of MySQL with Percona patches is available.

New features in the release:

• MySQL-5.0.83 is taken as the basis
• The new patch innodb_use_sys_malloc.patch is added
• The new patch innodb_split_buf_pool_mutex.patch is added

This patch splits the single global InnoDB buffer pool mutex into several mutexes for different purposes. This reduces mutex contention. It may help if you suffer performance loss when the working set does not fit in memory. You can detect buffer pool mutex contention by examining the output of SHOW INNODB STATUS and looking at the first section, SEMAPHORES.

Here are the minutes of the meeting. They can also be found online
with the irc logs here.

SRU tracking on server-related packages

mathiaz had a chat with bdmurray about a way to generate a list of bugs that have been fix for a previous week. bdmurray has a script that almost does the job.

ACTION: mathiaz to follow up with bdmurray about the list of fixed released bugs related to the ubuntu-server team.

Ubuntu HA team: Cluster stack update

mathiaz reported that the latest version of drbd had been uploaded to Debian. It was using DKMS as suggested by ivoks. The drbd package has been synced in Ubuntu Karmic.

RoAkSoAx updated the Ubuntu HA …

Intuit launches open source project. SFLC on Microsoft GPL violation accusations.

Follow 451 CAOS Links live @caostheory on Twitter and Identi.ca
“Tracking the open source news wires, so you don’t have to.”

# Intuit launched open source projects and community to develop apps based on its Intuit Partner Platform, while Savio Rodrigues declared Intuit’s open source play is all business.

# SFLC’s Bradley Kuhn told SDTimes Microsoft was in violation of the GPL.

# MySQL and Memcached-based appliance vendor Schooner Info Tech has raised $20m in Series B funding.

# …

MySQL 5.1 was uploaded to Debian unstable, and until we get it into testing, I am providing semi-official up-to-date backports of MySQL 5.1.36 and 5.0.84 for i386 and amd64 in my home directory on people.debian.org. I am providing MySQL 5.0.84 for Debian 4.0 and 5.0, and MySQL 5.1.36 for Debian 5.0. If you need MySQL 5.1.36 for Debian 4.0 as well, please let me know.

MySQL 5.0.84 for Debian 4.0:

deb http://people.debian.org/~nobse/mysql-dfsg-5.0/ etch-backports mainMySQL 5.0.84 for Debian 5.0:deb http://people.debian.org/~nobse/mysql-dfsg-5.0/ lenny-backports mainMySQL 5.1.36 for Debian 5.0:deb http://people.debian.org/~nobse/mysql-dfsg-5.1/ lenny-backports mainWhen MySQL 5.1.36 (or newer) made it into …

MySQL 5.1 was uploaded to Debian unstable, and until we get it into testing, I am providing semi-official up-to-date backports of MySQL 5.1.36 and 5.0.84 for i386 and amd64 in my home directory on people.debian.org. I am providing MySQL 5.0.84 for Debian 4.0 and 5.0, and MySQL 5.1.36 for Debian 5.0. If you need MySQL 5.1.36 for Debian 4.0 as well, please let me know.

MySQL 5.0.84 for Debian 4.0:deb http://people.debian.org/~nobse/mysql-dfsg-5.0/ etch-backports main
MySQL 5.0.84 for Debian 5.0:deb http://people.debian.org/~nobse/mysql-dfsg-5.0/ lenny-backports mainMySQL 5.1.36 for Debian 5.0:deb http://people.debian.org/~nobse/mysql-dfsg-5.1/ lenny-backports mainWhen MySQL 5.1.36 (or newer) made it into testing, I am …

In the MySQL Community team, our charter is to serve the MySQL community — new and old MySQL users alike. One of the ways we do this is by facilitating information exchange between community members, where the new can learn from the old.

And there’s been lots of that information exchange going on, such as over mailing lists (in the early days the dominant vehicle), forums, and Planet MySQL.

One problem with this information exchange has been its ephemeral nature. The same questions pop up for many new users, and should they for some reason not be amongst the issues solved in the MySQL documentation, chances are you’ll have to know quite precisely what you’re looking for when coming up with your Google search phrases. Of course, browsing Planet MySQL is a great way of keeping up to …