Archive for the ‘Summer of Code’ Category

Log Buffer #94: a Carnival of the Vanities for DBAs

Saturday, April 26th, 2008

April 25th, 2008 – by Ronald Bradford

Welcome to the 94th edition of Log Buffer, the weekly review of the database blogsphere. Adding to the list of usual database suspects, I have some more alternative considerations for our readers this week.

We start with Conferences

Still some discussion from last weeks’ 2008 MySQL Conference & Expo.

Baron “xarpb” Schwartz calls it correct in Like it or not, it is the MySQL Conference and Expo. Matt Assay of c|net gives us some of his opinions in three posts Two great posts on MySQL, Back to the future for MySQL and Between two consenting corporations… in followup to last week’s active slashdot discussion. Many others have also commented if you have not been following the news released before opening keynotes.

If you didn’t get a hard copy, Sheeri Kritzer Cabral has published the Pythian EXPLAIN Cheatsheet many attendees received.

Also last week was Collaborate 08 – Technology and Applications IOUG forum for the Oracle Community.

This week we also see the Web 2.0 San Francisco in action, and excitement is also brewing for the PGCon – PostgreSQL Conference for Users and Developers happening in under a month as Robert Treat has Plane tickets booked for PGCon. Postgres was also visible at the MySQL Conference & Expo if you were looking with a prominent consulting team downing the blue elephant during the event. Wish I’d taken a photo now!

Still more news from Adam Machanic of the Pythian group with SQLTeach Toronto: Almost Here.

Common threads

The 2008 Google Summer of Code announced this week showcases the Open Source databases MySQL (14 projects) and PostgreSQL (6 projects). Kaj Arnö talks more in Fourteen Summer of Code projects accepted 2008. The company PrimeBase Technologies also features strongly with two projects for the Blob Streaming storage engine for MySQL as I detail in Media Blob Streaming getting a Google boost.

MySQL

DTrace Integration with MySQL 5.0 – Chime demo in MySQL Users Conference 2008 by Jenny Chen is an example of Sun’s Open Source contribution to MySQL which I saw as a physical demo last week. Unfortunately, due to the imbalance in actually getting new functionality into Community contributions (actually non existence in current or next mysql version :-( ), this functionality is only really for show. Dtrace with MySQL 6.0.5 – on a Mac describes some of this work actually making it into the next, next version. It seems this next Falcon Preview is available but not announced by MySQL generally as I note in Continued confusion in MySQL/Sun release policy.

MySQL Gurus Mark Callaghan and Brian Aker comment respectively here and here on MySQL Heap (Memory) Engine – Dynamic Row Format Support. Work submitted by Igor Chernyshev of eBay Kernel Team (whom I’ve met previously and was most impressed with his ability to submit MySQL patch work, with little previous MySQL kernel knowledge, but extensive C++ knowledge). This work also contributed to eBay Wins Application of the Year at MySQL Conference & Expo.

Mark also mentions in his post “How do users get it? There is no community branch into which people can submit changes with a GPL license.“. A topic your’s truly has also mentioned regarding the Community contributions, development and release. Perhaps a sign of more benefit to the community soon as Monty mentions.

Baron Schwartz comments on Keith “a.k.a Kevin” Murphy’s work in Spring 2008 issue of MySQL Magazine. With a quick plug also for his upcoming book “High Performance MySQL – Version 2″ (me giving it a plug also now), Baron also has the best published anti-spam sniffer email I’ve seen, and recently updated to his new employer. Check his blog and let me know.

Postgres

Joshus Drake of Command Prompt Inc. The Postgres Company gets excited in Is that performance I smell? Ext2 vs Ext3 on 50 spindles, testing for PostgreSQL and gives us some insight into different settings of two popular file system types. It would be great to see a follow up with a few more different filesystems types.

Pabloj “so many trails … so little time” extends his MySQL example to Postgres in Loading data from files. And on Postgres Online Journal, we get An Almost Idiot’s Guide to PostgreSQL YUM giving you a step by step guide of PostgreSQL setup, including the all important “Backing up Old Version”.

Oracle

We get a detailed book chapter from Keith Lake of Oracle OLAP The most powerful, open Analytic Engine in his extensive post on Tuning Guidance for OLAP 10g. David Litchfield brings attention in A New Class of Vulnerability in Oracle: Lateral SQL Injection. The title is sufficient for all Oracle DBA’s to review.

Don Seiler gives his experience in Bind Variables and Parallel Queries Do Not Mix when an Oracle Bug is discovered the database to 64-bit H/W..
Matching LOB Indexes and Segments by Michael McLaughlin gives us a good CASE/REGEX SQL example exam question, and simple output to monitor the growth of LOBs in your Oracle database.
Additional readings for Oracle folks can be found with Kenneth Downs writing Advanced Table Design: Resolutions and Dan Norris’ Collaborate 08 thoughts gives a concise review of a largely attended Oracle event.

SQL Server

B Esakkiappan’s SQL Thoughts gives us a throughout lesson on SQL Server 2005 Database Transaction logs with Know the Transaction LOG – Part – 1, Part – 2, Part – 3 and Part -4 Restoring Data.

Paul S. Randal of SQL Skills adds Conference Questions Pot-Pourri: How to create Agent alerts to his writings following many requests after a recent workshop.

In Scalability features I would like to have in SQL Server Michael Zilberstein lists 3 key features including “Active-Active cluster”, “Indexes per partition” and “Bitmap indexes and function based indexes”.

Ingres, Times Ten, Google App Engine and more

Some movement in the Ingres world with Deb Woods of Ingres Technology Blog discussing in Inside the Community – Ingres style…. the Ingres Engineering Summit occurring this week. Attendees included newbies to a 24 year Ingres veteran. That beats my experience in Ingres which now extends 19 years.

We get another very detailed installation description, this time for Times Ten in Install Oracle TimesTen In-Memory Database 7.0.4 on Linux.

Just a few weeks ago, a new database offering hit the market with the Google App Engine. News this week includes
Google App Engine Hack-a-thons! being announced with events in New York on May 7th and San Francisco on May 16th. As a developer with an account and an excuse to use it more, I can’t win, being in the right towns on the wrong dates.

OakLeaf Systems this week writes Comparing Google App Engine, Amazon SimpleDB and Microsoft SQL Server Data Services. Another good read just for comparison.

Not in a blog, but in discussion in at the recent MySQL, was msql. It was interesting to find out that PHP was originally developed for msql first, and only used MySQL as the preferred database after some functionality requirement. Interesting what could have been?

In Conclusion

Thanks Dave for the opportunity to contribute to the week in review. Until my chance to charm the readers next time.

I leave you with a photo, and challenge our readers to find another person who would be capable of wearing a t-shirt that states “My free software runs your company”. Michael Widenius- Founder and original developer of MySQL can, and my thanks to you for MySQL, and the Vodka shots at the Conference last week.

Happy Earth Day 2008!

Media Blob Streaming getting a Google boost

Wednesday, April 23rd, 2008

The 2008 Google Summer of Code MySQL Projects are now available. MySQL has 14 listed projects, one of the ~190 different Open Source products listed. Unfortunately there is no summary to see the total number of projects being sponsored across all products.

Media Blob Streaming actually has the luxury of two approved projects, so they have plenty of mentoring work at PrimeBase Technologies.

Raj Kissu Rajandran will be working on BLOB Streaming Support for phpMyAdmin and KishoreKumar Bairi on Streaming Enabled MySQL Driver for PHP. Welcome to world of open source for your respective projects.