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Open Database Alliance

This alliance is an excellent step, showing the maturity, breadth and depth of expertise for MySQL related services! Of course Open Query is an active early member, with our training and subscription services, and initiatives like the OurDelta builds project.

Kudos to MontyW and PeterZ for driving this further while at the MySQL Conference last month.

MySQL User Groups on meetup.com - sponsorship - ask Open Query

This is about the ending of the sponsorship of the mysql.meetup.com user groups by Sun/MySQL and their suggested move to Facebook.

If people want to move to Facebook, that’s fine. For those who want to stay but don’t have the local funding, I have an offer for you. Contact Open Query, and we’ll sponsor your group for the coming months. This is not open-ended, I think a more permanent solution is important (moving, sponsorship, whatever) but I want to make the effort for the community to prevent any groups from disappearing now just because of this.

I was the one who originally set up the agreement with meetup.com when they first started charging for meetups (and it turned out to be a very good business model for them!). When that change was announced, quite a few meetup organisers were going to quit. The …

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Open Database Alliance founded

Monty Program Ab and Percona today launched the Open Database Alliance.

You can find the press release about it here.

This may be one of the most important steps in the history of MySQL and MariaDB.

Here follows my initial vision of the Open Database Alliance. Note that things may change slightly when we start defining the rules of the Alliance together with the Alliance members!

The Alliance will be a center and provide infrastructure for companies and individuals to develop, collaborate and do business around open source databases with MariaDB/MySQL as our initial …

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AWS Experience Part 2: Accessing the Cloud

Hi all,

Today I'll be write more about my experiences with Amazon Web Services. Before I continue, I'd like to provide some background information.

I signed up for Amazon Web Services. I used the Fedora LAMP AMI to create a server instance. The main reason for choosing this AMI was its inclusion of MySQL and Apache, a nice little package indeed. I ran into a few problems at first. Because I am based in Europe, I am allowed to use only the EU-West region, and the default in the US-East region. The drop down list is rather small, and i took a couple of unsuccessful instances to figure out that this was the problem. When I say "unsuccessful instances," I mean that the nothing appeared in the browser when I copied the public DNS to the browser's address bar. I attached an EBS volume to the server instance and it was OK.

Now for more on the command line.

I spent a lot of time messing around with the commands in the …

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AWS Experience Part 2: Accessing the Cloud

Hi all,

Today I'll be write more about my experiences with Amazon Web Services. Before I continue, I'd like to provide some background information.

I signed up for Amazon Web Services. I used the Fedora LAMP AMI to create a server instance. The main reason for choosing this AMI was its inclusion of MySQL and Apache, a nice little package indeed. I ran into a few problems at first. Because I am based in Europe, I am allowed to use only the EU-West region, and the default in the US-East region. The drop down list is rather small, and i took a couple of unsuccessful instances to figure out that this was the problem. When I say "unsuccessful instances," I mean that the nothing appeared in the browser when I copied the public DNS to the browser's address bar. I attached an EBS volume to the server instance and it was OK.

Now for more on the command line.

I spent a lot of time messing around with the commands in the …

[Read more]
A few seats still left in DRBD Total on-line training

By popular demand, we are now offering an on-line incarnation of our DRBD Total training sessions, normally taught in a 4-day on-site course. The next such training commences on May 18 (next Monday), and we still have a few seats left — so if you’re interested, grab one while you still can!

What’s covered in this course?

Here is an overview of the course highlights:

  • Introduction to High Availability Clustering & DRBD
  • Setting up a DRBD resource and common failure scenarios
  • Configuring and running the Heartbeat/Pacemaker cluster stack
  • Highly available NFS, MySQL, and virtualization
  • DRBD performance tuning and optimization
  • DRBD integration with Red Hat Cluster Suite
  • Recent and future DRBD development

Every course attendee gets a virtual cluster to play with and practice on. It doesn’t get much more hands-on than this.

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read_ahead (disabled) as steroid

Last week we were busy to align XtraDB performance with 5.4, now we have some results. Currently it is available as "hacks" to XtraDB (available on Lauchpad lp:~percona-dev/percona-xtradb/hacks-porting-tune if you are interested). Basically we took improvements from 5.4 and backported ones performance related to XtraDB.

Here are results for tpcc-like workload, 100W (~10GB) ( raw results and parameters are available here
http://spreadsheets.google.com/ccc?key=rxUEhM2dqbX0uAfq9j6WQ_w ). Box Dell PowerEdge R900 (Does Dell have referral program ? ), with RAID10 (8 disks) on ext3, 32GB of RAM.

As you see there almost no difference and you may say what's the reason in XtraDB ? The most interesting reason is XtraDB based on InnoDB-plugin and contains its nice features like FAST INDEX CREATION and dynamic pages. And XtraDB has some …

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InnoDB Conference Presentations Now Online

Well, it took us a little while (we’ve been busy !), but we’ve now posted our presentations on InnoDB from the MySQL Conference and Expo 2009. You can download these presentations by Heikki Tuuri, Ken Jacobs and Calvin Sun from the InnoDB website, as follows:

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New screens for creating purchase orders in opentaps

If you have been using opentaps 0.9 or 1.0, you should find the new screens for creating purchase orders in the upcoming version 1.4 much easier to use.

First, the screen for initializing purchase orders has been streamlined. Instead of having to go through two screens to select a supplier and agreements, there is now one screen to do both:Second, when you're adding items to your purchase order, there is now an auto completion which it to prompt you for a product based on either the product ID or a portion of the product name


If the product has not been set up already with a supplier entry in the catalog manager, opentaps 1.4 will let you …

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The sound of drizzle...

I see this post in MySQL internals: http://lists.mysql.com/internals/36630

It states that "Starting from January 2009" there's a re-engineering effort to improve the modularity of the code base, reduce the number of bugs introduced with new features and a better pluggable architecture to make it easier for third-parties to implement plugins.

Hey, this sounds great! However, I have some questions:

1. This sounds a bit like Drizzle
2. Why the announcement now, in May, when this effort was started in January? If this is all about openness, should not there have been some sort of pre-announcement to the community to solicit opinions?
3. How pervasive will this be? A re-architecture or a gradual direction of development?
4. Where's the code? Where are the plans? Other forks/branches, there is code to show. Is this an …

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