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MySQL Administrators (multiple) in Amsterdam and Cambridge

I am working for this small "not-really-a-travel-agency" in Amsterdam for almost 3 years now ( is part of the Priceline Group of Companies): We are reserving hotels rooms for guests using a website, and we sleep several hundred thousand people, each night.

To accomplish that we are operating a three-digit number of MySQL database servers on CentOS in about three dozen replication hierarchies, automating system administration as good as possible using puppet. Our developers are abusing these boxes using Apache and mod_perl. Because we are still growing faster than the market, we are looking for multiple MySQL DBAs. The positions are based in Amsterdam, NL and Cambridge, UK.

An applicant should have multiple years of experience with MySQL, with a focus on InnoDB, replication and partitions. Good working knowledge of Linux (CentOS), experience with Puppet or general Linux system administration skills are a useful bonus. Experience with operations in large scale environments is, too. can offer help in relocation and with the administrative and legal formalities that come with working abroad. Also, the Netherlands have an attractive tax model for "Knowledge Workers" which may be applicable for you, and again we might be able to help with that as well.

Company language is english, and we are located in attractive parts of the city centers in the cities where we are present. Your colleagues in IT are coming from at least a dozen countries all over the world. The entire production is completely based on open source products, of course. is hosting the perl git repository, and contributes to the development of Perl, Puppet and MariaDB as well as a few other things. Some of your future colleagues are likely to have authored some of the software you are using every day.

Links: DBA Amsterdam (804-006), DBA Cambridge 569-006)

On my way to UC2006

Ok, this is my highest post so far: I am on the way to the UC 2006 and I am posting this using in-flight internet from 30,000ft height. The connection is not too bad. Ping times look like this:
kris@linux:~> ping -c 3
PING ( 56(84) bytes of data.
64 bytes from icmp_seq=1 ttl=237 time=609 ms
64 bytes from icmp_seq=2 ttl=237 time=709 ms
64 bytes from icmp_seq=3 ttl=237 time=640 ms

--- ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2006ms
rtt min/avg/max/mdev = 609.600/653.176/709.380/41.702 ms
That's not too bad, I believe.

MySQL certification - the experience

This is the MySQL Certification Stude Guide, Version 4.1. It was the foundation of my preparation for the MySQL 4 Core and Pro exams I took at the MySQL Consulting Bootcamp 2005. The test results are not yet in, so I cannot tell you if it worked. :) I complemented my preperations with practical experiments and by simply reading my way through the MySQL Online Manual.

I can tell you about the Guide, and the Test, though.
Continue reading "MySQL certification - the experience"