Comparation of distributed cache and centralized cache on web proxy

Caching is an object storage mechanism from a web page that has been accessed. With caching, bandwidth usage will be more efficient and the time to access a web page is getting faster. In caching there are 2 techniques used, namely centralized cache and distributed cache. The purpose of this study is to build a distributed cache system that supports Availability, Reliability, and Scalability. This system will overcome various problems found in the centralized cache, such as single point of failure, unreliable, and not scalable. With the availability of Availability, the system will avoid the problem of single point of failure by implementing a failover mechanism. For the Reliability system will still hold (reliable) accept requests from users, because some proxy servers (parent proxy) will serve requests from users. For Scalability, the system can add proxy servers easily and quickly. To develop the system, the developer takes several approaches such as basic learning about proxy servers and related theories. Next is an analysis to build a system that supports Availability, Reliability, and Scalability. Then the analysis phase is implementedand testing of the system is built. Tests carried out are testing centralized cache systems and testing distributed cache systems. The test results will then be compared to see the performance comparison between centralized cache and distributed cache.