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Presentation

This morning I held a short presentation to share my vision on the project. The handouts for this presentation with the title "SQLbusRT: A first glance" are available at our SourceForge project website.

You can download these handouts directly by clicking this link: SQLbusRT: A first glance

Blog: http://sqlbusrt.blogspot.com/

Project website: http://sqlbusrt.sourceforge.net/

New version of XAMPP 1.5.3 for Windows and Linux

The Apache Friends team is proud to announce XAMPP 1.5.3 for Linux and Windows. The new version of XAMPP includes fresh, green and up-to-date versions of: PHP 5.1.4, MySQL 5.0.21, Apache 2.2.2, phpMyAdmin 2.8.1 and OpenSSL 0.9.8b.

In case of Linux we also upgraded ProFTPD to the recent 1.3.0 and in case of Windows we included the new version of FileZilla FTP Server 0.9.16c.

Download XAMPP 1.5.3 here

MySQL Cluster with Disk Based storage

Couple of weeks ago when testing the Disk based storage in MySQL cluster 5.1.6 I ran into some annoying unstabilities

I've updated to 5.1.9 in the meanwhile.. my cluster has been up for 5 days now it seems like the problem has been fixed in the more recent versions.

I`ll continue runnnig tests to see if it stays stable :)

Glimpse of the future (Perl 6)

"Ovid":http://users.easystreet.com/ovid/ wrote a short article "giving a glimpse of Perl 6":http://www.oreillynet.com/onlamp/blog/2006/05/lamp_linuxsapachesmysqlphpytho.html?CMP=OTC-6YE827253101&ATT=lamp+Linux+s+Apache+s+MySQL+P+hp+ython+erl+56

If that was too dry and technical for you, then instead go read about how he "he caught two idiots using his credit card":http://www.askbjoernhansen.com/archives/2005/03/25/catching_the_cr.html last year.

Glimpse of the future (Perl 6)

"Ovid":http://users.easystreet.com/ovid/ wrote a short article "giving a glimpse of Perl 6":http://www.oreillynet.com/onlamp/blog/2006/05/lamp_linuxsapachesmysqlphpytho.html?CMP=OTC-6YE827253101&ATT=lamp+Linux+s+Apache+s+MySQL+P+hp+ython+erl+56

If that was too dry and technical for you, then instead go read about how he "he caught two idiots using his credit card":http://www.askbjoernhansen.com/archives/2005/03/25/catching_the_cr.html last year.

Refactoring database code

I've always been interested in refactoring code, but one thing that is always a little harder is refactoring databases... there isn't enough documentation available on it.

I was quite excited to see a new book published this month. I've started reading it through my Safari subscription.

I've inherited a fair bit of bad code in the past. Sometimes you can see that things don't work, but you don't know what to fix. The refactoring process is all about 'smells'. A smell is a particular design pattern that might have been a bad choice.

I'm particularly fond of this 'smells' term (commonly appearing refactoring books). It makes me think of food; if it smells, it's probably bad, or rotting. That's not *always* true …

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Change of plans

I'll be coming to the MySQL User Conference next month, then hanging around a little while longer for a support group meet.

After booking various things my bank called me about possible fraudulent charges on my credit card. Apparently I wasn't supposed to go?

Lessons from the 4.1 Certification Study

I sat the MySQL Core Exam in November, and I'm happy to report that I passed!

Last month came time to sit the pro exam, and not feeling as confident after what was quite a tough core sitting, I thought it was time for some study. While some things might appear obvious to some, I thought I'd share the notes I took when I was reading it:


  • Enums and sets can be set by their 'bit' value or actual value.
  • <=> is the null safe equivalent to =
  • MyISAM provides no data caches (except query cache). It relies on the host OS to provide it.
  • InnoDB can use a raw partition for its tablespace
  • There is a general log file which can store all queries (as well as of course binary log & slow query)
  • Temporary tables can be named the same as non-temporary tables, with the temporary taking precedence (could …
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Quick Hacks, mysqltabdump

The current version of mysqldump can export a database to a tabbed output. This is nice, but it seems it can only do one database at a time.

I wrote a quick script to attempt to merge multiple tab dumps. It's incomplete -- and the chmod 777 in it is definitely evil.

Tab dumping is faster for MySQL to import than an SQL dump, and it produces a smaller file. With a bit of work, this is the way to get your exports as small as possible. This helps if you had to rebuild a slave on another network, and/or you pay too much for bandwidth!

Your thoughts appreciated.
See: http://tocker.id.au/files/mysqltabdump.phps

I'm not heading to the MySQL-UC at this point.

It doesn't look like I'll be making it to the MySQL User Conference (argh!). I've constructed a list of sessions I'll be missing out on. Perhaps some of the others in Brisbane will take notes for our user group


Monday:


  • Optimizing MySQL Applications Using the Pluggable Storage Engine Architecture : Lentz
  • MySQL Performance Optimization : Zaitsev, Asplund


Peter Zaitsev is often online at the same time as me. I like to ask him all my idiot InnoDB questions -- he know's his stuff.

Tuesday:


  • The 5.1 Release : Aker
  • Migrating a Large System to MySQL …
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