The analysis that shows how to make deletions really fast by using clustering keys and TokuDB’s fractal tree based engine also applies to make updates really fast. (I left it out of the last post to keep the story simple). As a quick example, let’s look at the following statement:

update foo set price=price+1 where product=toy;

Executing this statement has two steps:

• 
  
• a query to find where product=toy
  
• a combination of insertions and deletions to change old rows to new rows
  

The analysis is identical to that for deletions. Just like for …

Pretty much exactly a year ago many german PHP meetups have held BBQs to celebrate the summer, to invite guests to join their meetups in a very relaxed atmosphere and to enjoy themselves. During the PHP BBQ week 2009 more than 140 people got connected and had fun . And, of course, I loved visiting all the meetups. I am not touring through the user groups this year. However, and that is fantastic news, some user groups have organized BBQs again. Today, June 22th - 19:00, you can enjoy a BBQ in Karlsruhe organized by the PHP user group Karlsruhe and sponsored by urlaubswerk.de! Check their homepage for the latest details.

KIT Campus Süd – Center für Innovation & Entrepreneurship (CIE)
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Pretty much exactly a year ago many german PHP meetups have held BBQs to celebrate the summer, to invite guests to join their meetups in a very relaxed atmosphere and to enjoy themselves. During the PHP BBQ week 2009 more than 140 people got connected and had fun . And, of course, I loved visiting all the meetups. I am not touring through the user groups this year. However, and that is fantastic news, some user groups have organized BBQs again. Today, June 22th - 19:00, you can enjoy a BBQ in Karlsruhe organized by the PHP user group Karlsruhe and sponsored by urlaubswerk.de! Check their homepage for the latest details.

KIT Campus Süd – Center für Innovation & Entrepreneurship (CIE)
…

What happens when you mention Open Office and Firewall in once sentence, in public ?

People start actually building it (French Article)

Then add to that list that there's also people out there that think that running MySQL over NFS is providing them High Availability, or that using DNS Round Robin will provide them a scalable setup,

So yes .. apparently there is indeed a parallel universe out there.

And no .. I don't want to see Webmin in any Appliance .. that is a joke..., or rather a rant ..

Technorati Tags: firewall …

Dear MySQL Users,

We’re happy to announce the 3rd Release Candidate (RC) of MySQL Workbench.
Version 5.2.24 includes fixes for more than 70 issues.

MySQL Workbench 5.2 RC provides:

• Data Modeling
• Query (replaces the old MySQL Query Browser)
• Administration (replaces the old MySQL Administrator)
if you are a current user of MySQL Query Browser or MySQL Administrator, we look forward to your feedback on all the new capabilities we are delivering in a single unified MySQL Workbench
As always, you will find binaries for the various platforms on our download pages.

Please get your copy from our Download

http://dev.mysql.com/downloads/workbench/

To get started quickly, please take a look at this short tutorial.

MySQL Workbench 5.2 RC Tutorial

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Couple of Fridays ago we had one of our @Inuits days again. Rather than having some people give talks and presentations about what they have been doing for the past couple of months this time we set out to research, test, and build stuff.

We split up in 3 different groups, one focusing on CI and testing freshly build stuff with cucumber, a second one setup and tested Galera

We setup a 3 node Galera cluster , not really as smooth as we'd like to ..

Our first bump was that the installation of the package on CentOS is hell, it needs manual interaction such as replacing packages. Deploying this from a repository is probably not going to be a straight forward option.

Galera only takes care of replicating data, just as with MySQL MM replication there still is a need for an external …

I previously tested InnoDB on an 8-core server to determine how many IOPs it can do for a simple IO-bound workload. The limits were ~12k disk reads/second for MySQL 5.0 and ~18k reads/second for MySQL 5.1. I just repeated the tests using a 16-core server and the results are much better. I can get 20,000 to 30,000 disk reads/second using InnoDB 5.1. InnoDB 5.5 appears to be capable of 50,000 to 70,000 disk reads/second courtesy of support for multiple buffer pools (innodb_buffer_pool_instances). This is possible on benchmarks assuming sufficient concurrency and without unreasonable degradation in response time. This is a best-case result that is unlikely to be achieved in production, but I much prefer a best case of 30,000 disk reads/second instead of 10,000/second.

The test runs 1 to 1024 concurrent threads on a client server. Each thread fetches one row per …

Oracle Open World is the conference of everything related to Oracle. This year edition, running from September 19th to 23rd, is expected to have more than 45,000 attendees, making it one of the biggest IT events worldwide.

Traditionally, on the Sunday preceding the main event, there is a full day technical event, fueled by the user groups, independently from the company. These Sunday events are wildly popular. they are organized by users for users, and these sessions are usually fully attended.

Now that MySQL is part of the Oracle portfolio, it is going to be part of the Oracle Open World show. In the spirit of the user groups events, there will be a MySQL Sunday event on Sunday afternoon, with four highly technical tracks, with well known speakers. …

Devart today releases dbForge Studio for MySQL, v4.50 – cutting-edge administration tool and development environment for professional working with MySQL databases.

With dbForge Studio, Devart continues its initiative to produce efficient database experiences for all the people in MySQL world.

New features in dbForge Studio for MySQL, v4.50 include:

More freedom for backing up schemas

Schema Export wizard has been totally redesigned to Database Backup to enable users to back up schemas in automatic mode using Windows task scheduler, save backup options for future use, view automatically complied log file. Besides old backup files are automatically removed based on date or quantity.

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For the last few years I have had an interest in configuration management of IT infrastructure. While by no means an expert I have a considerable amount of experience with the problems associated with mass server configuration and have come to believe it also one of the most under-served disciplines in systems management.

In a previous life I had an operations role maintaining primarily Linux servers and other open source infrastructure. In 2006 I worked on launching the open source NetDirector project, a graphical tool for configuring open source infrastructure like Apache, Samba, LDAP and NFS servers. During that time the challenges of …