Building a Flexible Web Caching System
نویسندگان
چکیده
Web caching is a technology that has demonstrated to improve traffic on the Internet. To find out how to implement a Web caching architecture that assures improvements is not an easy task. The problem is more difficult when we are interested in deploying a distributed and cooperative Web caching system. We have found that some cooperative Web caching architectures could be unviable when changes on the network environment appear. This situation suggests that a cooperative Web caching system could get worst access to Web objects. However in this paper we present an architecture that combines the best of several Web caching configurations that we have previously analyzed. Our architecture gives basic ideas for implementing a cooperative Web caching system using groups of HTTP proxy servers which can improve access to remote Web objects regardless of the changes that might occur on the network environment (changes that could produce modifications in Web object validation policies and/or types of caching communication).
منابع مشابه
Beyond Flexibility and Reflection: The Virtual Virtual Machine Approach
With todays wide acceptance of distributed computing, a rapidly growing number of application domains are emerging, leading to a growing number of ad-hoc solutions, rigid and poorly interoperable. Our response to this challenge is a platform for building flexible and interoperable execution environments (including language and system aspects) called the Virtual Virtual Machine. This paper prese...
متن کاملCaching Neighborhood Protocol: a Foundation for Building Dynamic Caching Hierarchies with WWW Proxy Servers
In this paper, we propose a Caching Neighborhood Protocol (CNP) that describes an infrastructure upon which proxy servers can build dynamic caching hierarchies. Compared to the conventional schemes based on static caching hierarchies where proxy servers can only communicate with each other following predefined path configurations, the proposed dynamic scheme permits flexible communications amon...
متن کاملObject Caching in a CORBA Compliant System
Distributed object systems provide the key to building large scale applications that can execute on a range of platforms. The Common Object Request Broker Architecture (CORBA) specification from OMG attempts to address interoperability and heterogeneity issues that arise in such systems. Our goal is to investigate performance issues for distributed object systems. We claim that object caching i...
متن کاملCruz Efficient Data Distribution in a Web Server Farm
High-performance Web sites rely on Web server “farms”—hundreds of computers serving the same content—for scalability, reliability, and low-latency access to Internet content. Deploying these scalable farms typically requires the power of distributed or clustered file systems. Building Web server farms on file systems complements hierarchical proxy caching.1 Proxy caching replicates Web content ...
متن کاملFlexible Open Caching for the Web
Caching plays a vital role in the performance of any large-scale distributed system and, as the variety and number of Web applications grows, is becoming an increasingly important research topic within the Web community. Existing caching mechanisms are largely transparent to their users and cater for resources which are primarily read-only, offering little support for customisable or complex ca...
متن کامل