By Iqbal Khan
The popularity of ASP.NET, the Web application framework from Microsoft, continues to grow by leaps and bounds within the developer, enterprise, and IT ranks. There is one area of difficulty, however: scaling ASP.NET applications out of the box is simply not possible.
Scalability has two meanings in this context. First, you need to be able to effectively handle peak user loads because every application goes through peaks and valleys in terms of the number of users logged in at any point in time. When you design the infrastructure, you want to design the application so it can handle the peak loads as efficiently and as fast as nonpeak loads.
Second, you have to be able to increase the total capacity of your system. Today you may have only 5,000 users. Six months, a year down the road, you may have 10,000 or 15,000 or 20,000, and in a few years you could end up with 100,000 users. Being able to grow with the number of users without grinding the application to a halt is what scalability is all about.
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