Archive for the “Web Technology” category
PHP/KML Polyline Simplification with Douglas-Peucker
by Clay vanSchalkwijk on April 20, 2009
Quality GIS data sometimes comes with a lot more precision than what is usable for Google Maps (or other mapping software). The problem lies in the number of points representing a polygon that you want to overlay. A county representation (…)
There and Back Again, an EC2 MySQL Cluster
by Clay vanSchalkwijk on January 26, 2009
Limitations of EC2 as a web platform: Price- An m1.xlarge instance will run you ~$600 with data transfer costs. Managed hosting solutions run cheaper especially if you plan on purchasing in bulk. The grid is designed for on-demand computation and (…)
The Limitations of Scaling with EC2
by Justin Leider on October 8, 2008
Just as with any platform you choose, EC2 has its own limitations as well. These limitations are often different and harder to overcome than what you might find while running your own hardware. Without the proper planning and development, these (…)
Running your own hardware Vs EC2 and RightScale — Part 2
by Justin Leider on September 16, 2008
This week I’ve been reminded of a very important lesson… No matter how abstracted you are from your hardware, you still inherently rely on its smooth and consistent operation. This past week CitySquares’ NFS server went down for the count (…)
Nuances of EC2 and RightScale
by Justin Leider on September 5, 2008
So here it is, about two weeks have passed since CitySquares officially migrated its server infrastructure over to EC2 and RightScale. All in all, everything went relatively well. There were a few hiccups on the cut over day that left (…)