Given the continued growth of the WorldWide Web, performance of Web servers is becoming increasingly important. File caching can be used to reduce the time that it takes a Web server to respond to client requests, by storing the most popular les in the main memory of the Web server, and by reducing the volume of data that must be transferred between secondary storage and the Web server. In this...

JMS is an API specification that defines a standard way for applications to access Message-Oriented Middleware. In this short paper, we report on the ongoing work for enhancing dependability of a JMS server. We suggest that a promising approach is to use a clustered solution based on a group communication framework. The key principle that permeates the design of our clustered JMS is functional ...

Web content hosting, in which a Web server stores and provides Web access to documents for different customers, is becoming increasingly common. For example, a web server can host webpages for several different companies and individuals. Traditionally, Web Service Providers (WSPs) provide all customers with the same level of performance (best-effort service). Most service differentiation has be...

For an electronic business (e-business), customer satisfaction can be the difference between long-term success and short-term failure. Customer satisfaction is highly impacted by Web server availability, as customers expect a Web site to be available twenty-four hours a day and seven days a week. Unfortunately, unscheduled Web server downtime is often beyond the control of the organization. Wha...

There is an increasing need for new Web server architectures that are application-centric, simple, small, and pervasive in nature. In this paper, we present a novel architecture for a bare PC Web server that meets most of these requirements. A bare PC Web server runs on any Intel 386 (or above) based architecture with no operating system in the machine. The application object or program contain...

Creating a web site for variant devices is an important work in ubiquitous computing. This paper, based on ontology and semantic web, proposed a device adaptive web site model, named WebUnify. WebUnify is composed of three parts---WWW Server, Content Server and Web Site Creation. With CC/PP protocol, WWW Server can recognize different kinds of device profiles and generate variant requests to Co...

A substantial portion of web traffic consists of queries to database web servers. Unfortunately, a common technique to improve web scalability, proxy caching, is ineffective for database web servers because existing web proxy servers cannot cache queries. To address this problem, we modify a recently proposed enhanced proxy server, called an active proxy, to enable Active Query Caching. Our app...

One of the most vexing questions facing researchers interest in the World Wide Web is how the performance of Web Server could be improved. In this paper we discuss the results of our investigation on potential of httpd accelerator (phhttpd) to improve web server performance. This paper presents comparative results for running the Web server with and without an accelerator, and measures the effe...

-----------------------------------------------------------------------ABSTRACT -------------------------------------------------------------Web Usage Mining is the application of data mining techniques to discover interesting usage patterns from Web data, in order to understand and better serve the needs of Web-based applications. Usage data captures the identity or origin of Web users along w...

Prolog Server Pages (PSP) is a scripting language, based on Prolog, than can be embedded in HTML documents. To run PSP applications one needs a web server, a web browser and a PSP interpreter. The code is executed, by the interpreter, on the server-side (web server) and the output (together with the html code in witch the PSP code is embedded) is sent to the client-side (browser). The current i...