Archive for November, 2008

Experiment with SPAM comments

Friday, November 21st, 2008

After getting a lot of comment SPAM on different sites I thought I’ll run a quick experiment. Launch a honeypot, almost disable spam prevention and check out the statistics. More details on the honeypot page.



Waiting for GMail themes? Log out and log back in

Friday, November 21st, 2008

I was waiting for the Gmail themes tab to appear on the settings page but it never did. I run Gmail under Prism and I hardly ever log out. Once I did do that and logged back in I finally got the themes tabs. Running terminal right now, nooooot.



How I stopped worring and learned to love the Maven

Thursday, November 20th, 2008

For many years I was convinced that Maven was a plot to bring the community of Java developers to the point of extinction. It is very slow in development, overengineered and imposes a set of standards where a 20 line build script would suffice.
On the other hand I was always envious of the way Maven [...]



The Performance Cutoff

Monday, November 10th, 2008

A few days ago I had a small epiphany on a simple yet important issue. I was trying to squeeze those last few percents of performance out of JavaRebel and it came to the point where I started optimizing individual hotspots method-by-method.
One of the most common ways to improve execution time of a specific method [...]



How to waste 3GB of traffic on 404 pages

Thursday, November 6th, 2008

The previous post on dow.ngra.de generated tons of traffic. That tons of traffic generated 120 000 requests to a style sheet file that did not exist. Wordpress will display a semi fancy page for 404 files that weighs about 25 KB. 25 KB times 120 000 is 3 000 000 KB :).
Actually the same happened [...]