I just checked the "Sun Contributor Agreement" (SCA) signatories list, and there are already 11 people who have signed the contributor agreement with an intent to contribute to MySQL.

Among the signatories, you will also notice Paul McCullagh of PrimeBase/PBXT fame. (To learn about how to submit your SCA paperwork, see here.)

Signing the SCA with an intent to contribute to any given Sun-sponsored open-source project would also suffice when it comes to contributing to any other Sun-sponsored open-source project.

So, as an example, Nils Goroll is both an OpenSolaris and MySQL contributor. (See Nils' OpenSolaris …

I just checked the "Sun Contributor Agreement" (SCA) signatories list, and there are already 11 people who have signed the contributor agreement with an intent to contribute to MySQL.

Among the signatories, you will also notice Paul McCullagh of PrimeBase/PBXT fame. (To learn about how to submit your SCA paperwork, see here.)

Signing the SCA with an intent to contribute to any given Sun-sponsored open-source project would also suffice when it comes to contributing to any other Sun-sponsored open-source project.

So, as an example, Nils Goroll is both an OpenSolaris and MySQL contributor. (See Nils' OpenSolaris …

Today I come back from the dentist, if that wasn’t bad enough news, I get an email from Google AdWords titled Your Google AdWords Approval Status.

In the email, all my AdWords campaigns are now disapproved, because of:

SUGGESTIONS:
-> Ad Content: Please remove the following trademark from your ad:
mysql.

Yeah right. I can’t put the word ‘MySQL’ in my ads. How are people to now find me? It would appear that many ads have been pulled not just mine. Is this a proactive measure by Google? is this a complaint from the MySQL trademark holder Sun Microsystems?

I’d like any comment, feedback or suggestions on how one can proceed here.

It reminds me of the days CentOS advertised itself as an “Open source provider of a popular North American Operating System”, or something of that nature.

I’ve just started using the CSV engine for a practical application and I’ve come across a few subtle and unexpected issues/limitations.

First, you can’t create any columns in your CSV table nullable.

mysql> create table t1(i INT) ENGINE=CSV;
ERROR 1178 (42000): The storage engine for the table doesn't support nullable columns

RTFM shows this was introduced in 5.1.23. See CSV Limitations

The second and more annoying was creating a CSV table, inserting a sample row (just to check the syntax), then replacing the file ([datadir]/[schema]/[table].CSV) with the same format, but with additional generated rows. This was to no avail when attempting to SELECT from the table.

The solution was to do a REPAIR TABLE [table] in order to see the newly refreshed data.
Futhermore, some more RTFM shows in …

The March NY MySQL Meetup featured a presentation from Infobright, a data warehousing solution built on the MySQL Product.

With a pitch of “Simplicity, Scalability and low TCO” I became more impressed with the capability to delivery on these as the presentation proceeded. Here are some highlights.

• The company and product has been around for a few years. Infobright started as a compression engine to sit beside Teradata, providing a significant cost saving to clients, and allowing a two way data transfer between Teradata.
• In September 2008, a open source community edition was released, called ICE. (Which I didn’t know)
• The technology is based on a Rough Set theory, a mathematical approach
• Using a …

I was having problems recently with a dedicated production server, that runs my MySQL Server and a number of websites. It’s most annoying when your system crashes without any reporting in /var/log/messages

The tool of choice from the host provider SoftLayer was PassMark BurnInTest Linux which is installed with every dedicated server.

I will need to investigate open source alternatives, as this is a commercial product, but for the purposes of my pain, this included tool was well worth the investment.

**************
RESULT SUMMARY
**************
Test Start time: Sun Feb 22 16:02:48 2009
Test Stop time: Sun Feb 22 16:07:49 2009
Test Duration: 000h 05m 01s

Test Name Cycles Operations Result Errors Last Error
CPU - Maths 261 488 Billion PASS 0 No errors
Memory (RAM) 2 3.081 Billion FAIL 1 Error verifying …

Monitoring MySQL Memory is a rather critical task because you can’t limit MySQL’s usage of physical memory resources. Improperly configured servers running MySQL can crash because you don’t understand memory usage.

MySQL uses memory in a number of different ways. Using the Oracle analogy, you can divide the mysqld memory usage into main areas of:

• SGA - System Global Area
• PGA - Process Global Area

The SGA is the footprint that MySQL uses for startup. This is attributed to the base footprint of the mysqld process and a number of buffers including:

• key_buffer_size - For MyISAM Indexes (note you can define multiple key_buffer’s The MyISAM Key Cache) …

I have raised this specific topic 3 times this week alone, twice in a MySQL setting.

The fundamental philosophy of testing is NOT to verify features of your product that work, it is to BREAK your system.

One such discussion this week was with a service provider that deployed a new system into an existing ecosystem. The release has been delayed due to development issue, and credibility with customers is now being further damaged because the system is reaching physical hardware limitations after just one month.

With this was described to me, my simple response was. You did not test you system to stress the system to breaking point. To know the limit of your capacity ahead of time is a proactive analysis, not a reactive one.

It’s not that complicated to do, easier in early stage before you have a 50-100-1000 server total environment, but it’s a best practice not see often enough.

InitMarketing has made its calendar of world-wide conferences and trade fairs related to Free and Open Source Software, IT and specific industries available to the public.

It currently includes 122 events in 17 countries taking place in 2009. 43 of them in Germany, 69 in USA. We use this calendar when planing events for our customers, thus we’ll regularly update it. Please let us know of any events which are not on our radar yet by commenting to my blog or commenting at the bottom of the events page.

Correctly managing your MySQL database objects such as schemas, tables, indexes, base data etc, is critical to the success of a 24×7 online website. I rarely encounter a robust working solution as part of my consulting so I would like to share my experience in identifying the best practices you should be adopting whether your an existing organization or just an individual with a simple website.

Much of the following concept actually pre dates my involvement in MySQL (since 1999), so this is not just applicable for a MySQL RDBMS. For the purposes of this discussion I’d like to focus on the theory successfully used with clients.

Under version control I have the following directory structure:

NOTE If your first observation was “Arrh, Version Control?”, you are in more trouble then you want to be right from day one. You need Version Control such as svn, cvs, bzr, git etc for any website no matter how small.