Optimized Combined Web Load Balancing System (ASPA WebCacheBalancer)
Traffic distribution across multiple servers and fast content delivery from internal cache
Optimized Combined Web Load Balancing System (ASPA WebCacheBalancer)
The World Wide Web suffers from scalability and reliability problems due to overloading and congestion of proxy servers. Although local proxy caching helps solve this problem, it can only satisfy one-third to half of requests. As a result, many requests are still sent to the main server and may turn it into a single point of failure. A web server can only manage a limited number of connections and then becomes slow or even unavailable. By using a load balancer, requests are distributed across a set of different servers and traffic load is balanced on each server. Even if there is not much traffic on the server, if the server fails, a load balancer helps transfer requests to other servers without any interruption. In other words, a single server is like a branch that breaks easily, but a load balancer allows you to tie a whole bunch of branches together that will be much stronger.
- Using two technologies of load balancing and caching brings many benefits, only a few main ones are mentioned below:
- By providing different servers, using a service will be more scalable.
- By providing stable connections, even when there are many visitors and high server resources are involved, visitors will have a good browsing experience. As a result, user satisfaction with your website increases.
- When a server goes offline, it will not receive traffic until that server comes online; as a result, site visitors will experience minimal disruption (or even no disruption).
- Due to the ability to replace servers, when an attack occurs on one server, other servers will not be affected and the service will be available without interruption.
- Cache performance ensures that static content on your website is delivered directly from the internal cache, thus increasing website speed and performance.
- By increasing website speed, the probability of ranking higher in search engines increases.