Performance of Web proxy caching in heterogeneous bandwidth environments

A Clustering based wireless internet proxy server needs a layer-7 load balancer with URL hashing methods to reduce the total storage space for servers. Layer-4 load balancer located in front of server cluster is to distribute client requests to the servers with the same contents at transport layer, such as TCP or UDP, without looking at the content of the request. Layer-7 load balancer located in front of server cluster is to parse client requests in application layer and distribute them to servers based on different types of request contents. Layer 7 load balancer allows servers to have different contents in an exclusive way so that it can minimize the total storage

show abstract

Section: 무선 인터넷 프록시 서버unclassified

A Distributed Layer 7 Server Load Balancing

Kwon¹,

Kwak²,

Chung³

2008

The KIPS Transactions:PartA

View full text Add to dashboard Cite

show abstract

“…From their research, many approaches have been proposed [7,37]. Among the proposed approaches, the web caching technology is proved as one of the effective solutions towards reducing access latency (the perceived amount of time between a user sends a request and receives with a response), alleviating web service bottlenecks, decreasing server loads and increasing improvement of the scalability and quality of service of the web systems [8][9][10][11]. Web caching is a technology for the temporary storage of web objects (document, html pages, images, audio files etc.)…”

Section: Introductionmentioning

confidence: 99%

“…Web proxies has gained rapid growth in recent years [10]. Web object can be cached at different locations between the client and the server [12][13].…”

Section: Introductionmentioning

confidence: 99%

HitBand: A Prefetching Model to Increase Hit Rate and Reduce Bandwidth Consumption

Anik¹,

Arifa²,

Abdul³

2017

IJIEEB

View full text Add to dashboard Cite

Abstract-Caching is a very important issue in distributed web system in order to reduce access latency and server load. A request is a hit if it is available in the cache and if not then it will fetch from the server in order to cache and serve the request. Researches have shown that generic algorithms of caching can increase hit rate up to 40−50%, but adding prefetching scheme can increase this rate to 20%. Prefetching is a technique to fetch documents before they are requested. This paper proposes a process model for prefetching named HitBand which will balance hit rate bandwidth in every scenario with the combination of "Roulette-wheel selection". Roulettewheel selection is a very popular selection based algorithm which selects objects according to their fitness. We have compared our HitBand with the generic algorithms of prefetching like prefetching by popularity, apl characteristic, good Fetch and lifetime. Generic algorithms did not take web object size into consideration and in limited bandwidth scenario object size has a big impact on bandwidth consumption. Though prefetching by lifetime algorithm shows little concern about bandwidth consumption by getting the object with changes happening less frequently but this compromises the hit rate. But our proposed HitBand not only considers bandwidth but also hit rate during prefetching. Performance evaluation of HitBand along with other algorithms is provided in our paper. We have tested our HitBand with the testing engine which is built using JavaScript and maintained under AngularJS framework. From the performance evaluation, our HitBand shows better results both in high and low bandwidth.

show abstract

“…The rate at which dynamic documents are delivered is often orders of magnitudes slower than static documents [9,11]. Therefore, caching dynamic web content is Work done while being at Rice University, Houston and EPFL University, Lausanne.…”

Section: Introductionmentioning

confidence: 99%

Caching Dynamic Web Content: Designing and Analysing an Aspect-Oriented Solution

Bouchenak

Cox

Dropsho

et al. 2006

Lecture Notes in Computer Science

View full text Add to dashboard Cite

Abstract. Caching dynamic web content is an effective approach to reduce Internet latency and server load. An ideal caching solution is one that can be added transparently by the developers and provides complete consistency of the cached documents, while minimizing false cache invalidations. In this paper, we design and implement AutoWebCache, a middleware system for adding caching of dynamic content transparently to J2EE server-side applications having a backend database. For this purpose, we first present the principles involved in caching dynamic web content, including our logic to ensure consistency of the cached entries. Thereafter, we demonstrate the use of aspect-oriented (AOP) techniques to implement our system, showing how AOP provides modularity and transparency to the entire process. Further, we evaluate the effectiveness of AutoWebCache in reducing response times of applications, thereby improving throughput. We also analyze the transparency of our system for a general application suite, considering issues such as dynamic web pages aggregating data from multiple sources, presence of insufficiently structured interfaces for exchanging information and the use of application semantics while caching. We use two standard J2EE web benchmark applications, RUBiS and TPC-W, to conduct our experiments and discuss the results obtained.

show abstract

Performance of Web proxy caching in heterogeneous bandwidth environments

Cited by 128 publications

References 9 publications

A Distributed Layer 7 Server Load Balancing

A Distributed Layer 7 Server Load Balancing

HitBand: A Prefetching Model to Increase Hit Rate and Reduce Bandwidth Consumption

Caching Dynamic Web Content: Designing and Analysing an Aspect-Oriented Solution

Contact Info

Product

Resources

About