Drizzle

Eric Day will be heading back to his home state (Maine) next week for a visit, and while there both Eric and Patrick Galbraith will be talking at the Boston MySQL Meetup Group on Monday night about Drizzle, Gearman, and how to combine the two with projects like Narada. If you are in the Boston area, be sure to check it out!

Great article by Jeremy Zawodny in Linux Magazine. Thanks Jeremy!

I won’t re-post what has already been said on the other blogs, but this seemed like a great central place to share the news.

After a couple months of trying to hunt down the mysterious little gnome causing headache to the team, it seems Eric stumbled upon the solution, probably in the shower, where all good ideas come to us. Take a look at his blog post for all the sexy statistics (last link) – I assume he did all the work after the shower, of course. Safety first, Eric!

Links:

• http://krow.livejournal.com/639040.html
• http://jpipes.com/index.php?/archives/296-Drizzle-Performance-Regression-Solved-TCMalloc-vs.-No-TCMalloc.html
• http://www.oddments.org/?p=67

Jay along with help from many of you has done a great job automating a lot of our tools to provide Drizzle metrics to get a handle on how we are doing. You’ve seen the regular emails that now generate sysbench numbers for each build, we also have regular automated builds to generate data for valgrind, lcov, doxygen and sloc. Oh and lets not forget OpenGrok which was setup by Trond.

If you look at lcov we still have a few rough edges to work out and actually could use some help if any of you are familiar with the inner workings of lcov.

The sloc graph below is showing data going back to March. Nice steady progress downwards which in this case is great! The big drop around build 960 was due to plugin clean up work by Monty and the slight increase around build 984 was from protocol work from Eric (all necessary and important!). Now if we could get one of you to help generate a nice dynamic web page to display this information……any takers?

See here for a pdf of the graph