By Greg Barish
Presents the concise roadmap Java builders and net engineers have to construct high-performance and scalable firm net purposes. choked with common approach structure suggestions and balanced with succinct examples for every expertise. Softcover.
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Additional resources for Building Scalable and High-Performance Java Web Applications Using J2EE Technology
This means that: • • • The fastest credit check will take at least 3 seconds. The slowest credit check will take at least (100 • 3) = 300 seconds (5 minutes). 5 minutes). This is unacceptable. Perhaps we can replicate the service 100 times and service all 100 clients at once. Then the fastest, slowest, and average times will all be at least 3 seconds. For the sake of example, suppose that each copy of the large Confirm-and-Pay-for-a-Product module requires 5 Mb (the code requires much less, but the code to have it function as an application service might very well require that much).
Content distribution is often a solution for bandwidth-heavy objects, such as images, which quickly clog up server-side bandwidth even though they don't require server-side application logic. The Server The server-side application architecture is both the most complex and the most interesting. While you can tune your application to some extent by understanding and playing to the features of the client and network pieces of the application, your efforts will have a much larger effect on the server side.
Just as in programming, poor modularization allows little reuse. Instead, you get code bloat, replication of functionality, and potentially inconsistent application behavior. What's worse is the scalability angle to all of this. By failing to reuse functionality and replicating it among coarser modules, you unnecessarily eat up memory on your server machines. Instead, if you break these modules into finer-grained components, you will be able to not only reuse functionality but also more efficiently iron out performance bottlenecks.