Evaluating the reliability of loosely coupled Software as a Service through the paradigm of a cluster-based and non-cluster-based web server is considered to be an important attribute for the service delivery and execution. We proposed a novel method for measuring the reliability of Software as a Service execution through load testing. The fault count of the model against the stresses of users ...

Most developers use default properties of ASP.NET server controls when developing web applications. ASP.NET web applications typically employ server controls to provide dynamic web pages, and data-bound server controls to display and maintain database data. Though the default properties allow for fast creation of workable applications, creating a high-performance, multiuser, and scalable web ap...

II Declaration I declare that the work described in this dissertation is, except where otherwise stated, entirely my own work and has not been submitted as an exercise for a degree at this or any other university. Abstract The exponential growth of the Internet and the increasing demands put upon Web servers has created the need for a scalable clustered Web servers. In this paper we attempt to ...

Manuscript received August 10, 2012. Toni Stojanovski, Faculty of Informatics, European University, bld. Kliment Ohridski 68, 1000 Skopje, Macedonia. (phone: +389 78 396 693, e-mail: [email protected]) Ivan Velinov, Faculty of Informatics, European University, bld Kliment Ohridski 68, 1000 Skopje, Macedonia. (e-mail: [email protected]) Marko Vučković, Faculty of Informati...

In this paper, we look at a number of policies for managing a le system cache in a web server. Traces from NCSA WorldWide Web (WWW) server are used in this study. We study several caching policies for improving the overall performance of such a server and show that request response time can be improved by some of the replacement policies that take size of the request into account. It is shown t...

Server responsiveness and availability are more important than ever in today’s client/server dominated network environments. Recently, researchers have begun to consider cluster-based computers using commodity hardware as an alternative to expensive specialized hardware for building scalable Web servers. In this paper, we present performance results comparing two cluster-based Web servers based...

Server responsiveness and scalability are more important than ever in today’s client/server dominated network environments. Recently, researchers have begun to consider cluster-based computers using commodity hardware as an alternative to expensive specialized hardware for building scalable Web servers. In this paper, we present performance results comparing two cluster-based Web servers based ...

Providing reliable and efficient services are primary goals in designing a web server system. Data replication can be used to improve the reliability of the system. However, mapping mechanism is one of the primary concerns to data replication. In this paper, we propose a mapping mechanism model called enhanced domain name server (E-DNS) that dispatches the user requests through the URL-name to ...

Long polling is a technique that simulates server push using Ajax requests, allowing Web pages to be updated quickly in response to server events. Unfortunately, existing long poll approaches are difficult to use, do not work well with server-side frameworks based on the Model-View-Controller (MVC) pattern, and are not scalable. Vault is an architecture for long polling that integrates cleanly ...