There have been ongoing rumors about a license change of the MySQL documentation. Karen Tegan Padir even asked the audience during her keynote at the MySQL Conference last week. Some liked it, but we didn't experience any overwhelming positive feedback. Currently, the MySQL Reference Manual and other MySQL documentation are released under regular copyright. Note, however, that Sun grants permission to use the docs in many ways that don't require written approval.

Most people in open source land believe that if the software is free then also the documentation should be (this is, for example, stated by the Free Software Foundation, in the preamble of the GNU Free Documentation License).

I agree with that …

Attending the MySQL Users Conference in 2006, I had one of the best days of my career. At the morning keynote, my name was called, and I found myself on stage, together with Markus Popp, Roland Bouman, and Rasmus Lerdorf, being awarded a Community Member of the year crystal ball. That day is permanently in my mind as a very fond memory.

For this reason, it is a particular pleasure for me to be in a position to suggest the next ones who will hold the community awards. It is a collegial decision, not my own. Each member of the community team submits a few names, we discuss the pros and the cons, and then we settle for the first three names in the list.

This year, the agreement fell on three names, who were included for different reasons.

This Thursday (April 30th, 14:00 UTC), Giuseppe Maxia will give a MySQL University session on Testing Multiple Servers With MySQL Sandbox. Giuseppe is the creator of MySQL Sandbox, and has recently announced a new Sandbox version and other interesting changes, for example the --query-analyzer option to make_sandbox (but note the date when this was announced!).

For MySQL University sessions, point your browser to this page. You need a …

Attending the MySQL Users Conference in 2006, I had one of the best days of my career. At the morning keynote, my name was called, and I found myself on stage, together with Markus Popp, Roland Bouman, and Rasmus Lerdorf, being awarded a Community Member of the year crystal ball. That day is permanently in my mind as a very fond memory.

For this reason, it is a particular pleasure for me to be in a position to suggest the next ones who will hold the community awards. It is a collegial decision, not my own. Each member of the community team submits a few names, we discuss the pros and the cons, and then we settle for the first three names in the list.

This year, the agreement fell on three names, who were included for different reasons.

Attending the MySQL Users Conference in 2006, I had one of the best days of my career. At the morning keynote, my name was called, and I found myself on stage, together with Markus Popp, Roland Bouman, and Rasmus Lerdorf, being awarded a Community Member of the year crystal ball. That day is permanently in my mind as a very fond memory.

For this reason, it is a particular pleasure for me to be in a position to suggest the next ones who will hold the community awards. It is a collegial decision, not my own. Each member of the community team submits a few names, we discuss the pros and the cons, and then we settle for the first three names in the list.

This year, the agreement fell on three names, who were included for different reasons.

As promised, here are more results running memcached on Sun's X2270 (Nehalem-based server). In my previous post, I mentioned that we got 350K ops/sec running a single instance of memcached at which point the throughput was hampered by the scalability issues of memcached. So we ran two instances of memcached on the same server, each using 15GB of memory and tested both 1.2.5 and 1.3.2 versions. Here are the results :

The maximum throughput was 470K ops/sec using 4 threads in memcached 1.3.2. Performance of 1.2.5 was just very slightly lower. At this throughput, the network capacity of the single 10gbe card was reached as the benchmark does a lot of small packet transfers. See my earlier post for a description of the server configuration and the benchmark. At the maximum …

I decided to give a try to slideshare. So I uploaded the slides from my most recent talks, and will eventually catch up with the old ones. My slides repository is http://www.slideshare.net/datacharmer.

If you are looking for the slides from MySQL Conference 2009, here are the shortcuts:

• MySQL 5.1 Partitions tutorial
• MySQL 5.1 event scheduler
• Boost performance with MySQL 5.1 partitions
• …