Yesterday I set up a new machine for our MariaDB Buildbot. This is quite an important build host for us, it runs more than 20 different builds for each push into our most important trees, and is the host that builds most of our release packages. So quite a workhorse! It is a pretty fast machine, with 5 SSD disks, 48GB of RAM and 2 x quad-core Intel Xeon E5420.
This is a replacement for the previous machine serving the same builds. The previous machine was also nice, at least on paper, with no less than 24 cores. Unfortunately we were never able to run that machine stably, it would crash/hang every few days requiring manual power cycling, which was unacceptable, of course.
The new host has been running for a day or so and seems to work well, hopefully it will prove to be more stable. I wanted to do a quick comparison of the speed of builds on the new host compared to the old:
Overall, the new builder looks about the same speed as the old one, maybe a bit faster even. Which is quite nice, given that the old one has three times the number of cores. The windows build is though significantly faster. This is probably because it turns out this is quite I/O heavy for some reason, and the new host, having SSD for storage, has significantly better I/O performance.
Monty Program along with various guests and our friends at the recently founded SkySQL recently wrapped up a meeting in Istanbul Turkey. Sadly it rained most days but we had a good time and got a lot done.
Besides learning how to say “Şerefe” which is “Cheers” in Turkish, we discussed the future of MariaDB, our companies goals, the MariaDB knowledge base and many other topics. Since I am the web guy, I lead the presentation / talk on the KB and thought I would share some highpoints of it with you.
If you don’t know, the KB is located at http://kb.askmonty.org. The goal is to provide one location for MariaDB and MySQL documentation along with a place to ask questions (and have developers actually answer them). To start we have both information licensed under the GPL about MySQL, content from the “SQL-99 Complete, Really” book (still in the progress of adding the whole thing) and original articles by Daniel, Monty and others.
We want anyone to be able to create new articles, clean up existing content and categorize them but for the moment only editors can. This is a limitation in our permissions system that I will be addressing shortly. I also am in the planning stages of allowing all content to be translated into multiple language. If you would like to volunteer, keep reading this blog and I will let you know when it is ready.
The KB is written in python (Django) running against MariaDB. I wrote it over the course of several months using many Django libraries. Let me know any comments or questions you might have.
I’ve just pushed the last batch of changes into 5.2 tree. The most important change was renaming Maria engine to Aria (with old
maria* compatibility variables). Other — smaller — changes included adding all plugins to the windows
.zip distribution (sphinx and oqgraph too), building
mysqld.exe with federatedx, not old federated engine, refactoring of
mysql-test-run suite to support pluggable per-suite extensions, print the plugin configuration in the
./configure script, and other even smaller changes. Together with all bug fixes that 5.2 has accumulated over time it made the tree ready for the next release – 5.2.2!