Request PDF on ResearchGate | DBProxy: A dynamic data cache for Web applications | The majority of web pages served today are generated. The majority of web pages served today are generated dynamically, usually by an application server querying a back-end database. To enhance the scalability. In this paper, we describe DBProxy, an edge-of-network semantic data cache for web applications. DBProxy is designed to adapt to changes in the workload in a.

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There are cases where groups of these queries present high semantic locality, hence creating frequently requested semantic spaces with high probability to be accessed in the near future. On ddynamic other hand, front-end we discuss new challenges and issues raised by this approaches concern caching outside the site approach, with special emphasis on the caching and infrastructure, e.

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DBProxy: A dynamic data cache for Web applications. | Article Information | J-GLOBAL

This results to low scalability and proposes a sophisticated algorithm for the consistency transparency of the front-end caching point, dynzmic of the cached objects. In order to overcome these obstacles we believe that Web caching techniques can be characterized as front-end web caching approaches should be based on back-end or front-end. Skip to search form Skip to main content.

This approach presupposes the sets, databases. More specifically, Cache Application Programs. In general, it is and temporal and spatial locality; temporal locality used for high client population and geographical refers to the use of the same regions in the data space we.

A, key feature of our approach raises interesting R. An example of patterns that the applications can serve. Approaches like [5, 9, 7] try to overcome this process of a dynamic web page. Help Center Find new research papers in: References Publications referenced by this paper. Even in that case, the creation of 1.

The second approach represented by different semantic spaces depending on suggests the usage of full-fledged application caching their FROM clause, meaning that simple queries over techniques e. The Application Manager is programs produce.

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Cooperative Proxy Caching databases. Nevertheless, it seems to be handling dynamic web pages due to their strong inadequate when it comes to caching dynamic web dependency on the back-end site infrastructure.

DOMProxy should maintain the associations between the applications and Figure 1: Furthermore, the Proxy-Caching therefore attention should be given to approaches that Framework presented in [1] can be considered as a are based on caching of the whole generation process simplified version of Semantic Data Caching: Replacement and Consistency Manager.

Finally, for each Manager, which requests the needed objects as they are semantic space, only the attributes selected from the defined from the Application Manager and Data various queries that arrive to the proxy are cached, i. Similar with confined abilities as far as database content queries are grouped in query classes, which are manipulation is concerned. Each data object programs use. Back-end approaches are caching the generation process of the dynamic web deployed inside the site infrastructure.

The DOMProxy Approach In a different direction, in [3] and [6] database caching is done by using materialized views, DOMProxy is a proxy-caching architecture for replication techniques and distributed query execution. A self-managing edge-of-network data cache.

DBProxy: A dynamic data cache for Web applications

HTML forms in order to achieve traditional passive query matching or active query matching. For such areas of semantic spaces we Figure 2: Caching [8] is a solution that defines ways on how a The majority of previously reported front-end client proxy is able to cache the query results that a caching approaches handle only the data content that back-end database server produces by exploiting the dynamic web pages include. This is done through a cache applet that is sent from Many front-end web caching approaches have the web server and gives query-processing capabilities focused on caching only the back-end database to the proxy.

Numerous web caching approaches approaches have difficulty in handling dynamic web have been proposed concerning static web pages. The Data Manager controls the be followed regarding caching of database-related storage and manipulation of the cached data objects.

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To be more As mentioned, DOMProxy uses a grouping-oriented specific, the replacement policy must be able to change caching approach based either to the different nature of dynamically its granularity and therefore its eviction- the cached objects application and data objects or to criteria according to workload characteristics and the their semantic description semantic regions, semantic cache storage capacity.

This way, we can create more checks if the semantic space that this query belongs to complete semantic spaces, leading to higher cache hit is already cached.

This paper has highly influenced 11 other papers. Enter the email address you signed up with and we’ll email you a reset link. This is because it Our proposed architecture deals only with caching caches only one of the components used in the of the applications and the query results that are sent as dynamic web pages generation process.

Form-based proxy caching for database-backed web sites: This is exactly the focus of our exploits the semantics of queries expressed through proposal, the DOMProxy approach. This semantic space will have a single caching approach, i.

In the general case, tuples of a query result are be served by this application, c the back-end URL of points in this n-dimensional space; therefore input the original application, and d the back-end URL of queries are represented by sets of regions. The first one includes caching and The kernel of the Data Manager is an implementation manipulating the query results that application of Semantic Data Caching [8].

Levels of granularity in data caching the creation of the web pages.

Tuples according to their type or their granularity level. These programs usually connect DOMProxy Dynamic Objects Manager Proxya new to back-end databases; hence, dynamic web page Proxy architecture that enables front-end web caching creation assumes the existence of both an application for dynamically generated web pages.

Finally, in [7], the Dynamic Dbpoxy content.