A Cooperative Caching Architecture For Improving Database Queries
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A Cooperative Caching Architecture For Improving Database Queries
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Author : Andrei Aurel Vancea
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2014-07-02
A Cooperative Caching Architecture For Improving Database Queries written by Andrei Aurel Vancea and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-02 with Computers categories.
Client side caching is a commonly used technique for reducing the response time of database queries. Semantic caching is a database caching approach in which results of old queries are cached and used for answering new queries. A new query will be split in a part that retrieves the portion of the result, which is available in a local cache (probe query) and a query that retrieves missing n-tuples for the database server (remainder query). This approach is especially suited for low-bandwidth environments or when database server is under heavy load. Semantic caching was successfully applied for optimizing the execution of queries on mobile clients or over lousy-coupled wide-area networks. Peer-to-Peer(P2P) networks have been applied successfully for improving the performance of cache systems. This thesis aims to use a P2P approach in order to enhance the semantic caching technique. Therefore, The Cooperative Semantic Caching (CoopSC) approach extends the general semantic caching mechanism by using a P2P (Peer-to-peer) approach in order to enable clients to share their local semantic caches in a cooperative manner. When executing a query, the content of both the local semantic cache and entries stored in caches of other clients can be used. A new query will be split into a probe, remote probes, and a remainder query. The probe retrieves the part of the answer which is available in the local cache. Remote probes retrieve those parts of the query which are available in caches of other clients. The remainder retrieves the missing n-tuples from the server. In order to execute the query rewriting, the cache entries of all clients are indexed in a distributed data structure built on top of a P2P overlay that is formed by all clients which are interrogating a particular database server. The general cooperative semantic approach also contains a mechanism for handling operations that modify the content of the database. During this thesis, the general approach was applied in the context of two real-life use-cases: cloud-computing environments, and NetFlow-based network monitoring solutions. This thesis shows that a cooperative semantic caching approach is technical feasible and such an approach approach increases the performance of databases systems. Moreover, in the context of such an approach, update handling can be executed with a reasonable performance when read-intensive workloads are executed. Finally the general CoopSC approach presents economic advantages when used within cloud-computing environments and improves the performance of NefFlow-based network monitoring solutions.
A Cooperative Semantic Caching Architecture For Answering Selection Queries
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Author : Andrei Vancea
language : en
Publisher:
Release Date : 2009
A Cooperative Semantic Caching Architecture For Answering Selection Queries written by Andrei Vancea and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Caching And Materialization For Web Databases
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Author : Alexandros Labrinidis
language : en
Publisher: Now Publishers Inc
Release Date : 2010-02-19
Caching And Materialization For Web Databases written by Alexandros Labrinidis and has been published by Now Publishers Inc this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-02-19 with Computers categories.
Database systems have been driving dynamic web sites since the early 90s; nowadays, even seemingly static web sites employ a database back-end for personalization and advertising purposes. In order to keep up with the high demand fuelled by the rapid growth of the Internet, a number of caching and materialization techniques have been proposed for web databases over the years. The main goal of these techniques is to improve performance, scalability, and manageability of database-driven dynamic web sites, in a way that the quality of data is not compromised. Although caching and materialization are well understood concepts in the traditional database and networking/operating systems literature, the Web and web databases bring forth unique characteristics that warrant new techniques and approaches. In this survey, we adopt a data management point of view to describe the system architectures of web databases, and analyze the research issues related to caching and materialization in such architectures. We also present the state of the art in caching and materialization for web databases and organize current approaches according to the fundamental questions, namely how to store, how to use, and how to maintain cached/materialized web data. Finally, we associate work in caching and materialization for web databases to similar techniques in other related areas, such as data warehousing, distributed systems, and distributed databases.
Reliable Efficient And Distributed Cooperative Caching For Improving File System Performance
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Author :
language : en
Publisher:
Release Date : 2001
Reliable Efficient And Distributed Cooperative Caching For Improving File System Performance written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Emerging high performance, high speed and scalable networks allow machines to access remote memory quicker than accessing disks. This paves way for coordinating the file caches of workstations in a distributed local area network, known as Cooperative Caching. This study introduces a novel cache architecture for cooperative caching called Reliable, Efficient and Distributed Cooperative Cache''. We present three algorithms - Server Logging, Client Logging and Peer Logging - that combine duplication with logging in order to improve the write performance of cooperative caching while ensuring the reliability of the data. We evaluate the performance of the logging algorithms using trace driven simulations. Several synthetic traces and two real world traces were used to measure the performance improvement obtained by the algorithms. The simulations indicate that the speedup obtained is as high as 10 compared to the baseline system. Based on the simulations, we conclude that the logging algorithms make complete use of the cooperative caching environment and provide better overall improvement by reducing the response time of write requests, improving individual client performance, minimizing the load on the server and ensuring reliability and availability of data.
Perspectives Of Cooperative Caching
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Author : Syed Hassan Shah
language : en
Publisher:
Release Date : 2018-08-21
Perspectives Of Cooperative Caching written by Syed Hassan Shah and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-21 with categories.
Seminar paper from the year 2017 in the subject Computer Science - Applied, grade: 3.5, course: Assignment, language: English, abstract: From the recent studies we come to know that the cooperative caching can improve the performance of system in wireless P2P networks such as hoc networks and mesh networks do. Somehow these all very high level studies leave many design and implementation issues which are still unanswered. While by study it shows that cooperative caching not only reduce the overhead copying issue between the user space and the kernel space, but it also allow data pipelines for end to end delay reduction. While the chip multiprocessors systems have made the on-chip caches as a decisive recourse shared among co scheduled threads. Still there are many challenges with respect to design for limited bandwidth, increasing on-chip wire interruption and extra capability features. So effectively Cooperative cache can support minimizing average access of memory latency and inaccessibility of critical inter-thread interference. So Caching is the common technique used for improve the. Cooperative Cache approach is intended for the treatment of large video streams with on requires access. Day by day Mobile technology is coming around us. So for general this technology needs address of Internet Service Provider (ISP) for cross-domain traffic. So different researchers present's algorithms of the strategy that shows changes brought to the content center network protocol in to implement the method. As recent works on cooperative caching in networks technology like work on Content Center network also enables the manipulation of the cache resources of routers with new generation. For CRs mostly researcher proposed least recently Used (LRU) approach. Cooperative cache can improve accessibility of data objects in mobile ad hoc network, where a mobile host can communicate with any other system anywhere anytime. Cooperative caching in mobile technology brings reality with
Coacs A Cooperative And Adaptive Caching System For Manets Optimization Performance Analysis
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Author : Ragy Moufid Zeitouny
language : en
Publisher:
Release Date : 2006
Coacs A Cooperative And Adaptive Caching System For Manets Optimization Performance Analysis written by Ragy Moufid Zeitouny and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
This thesis is concerned with the optimization and performance analysis of a coo peration-based database caching system for Mobile Ad Hoc Networks (MANETs). The heart of the system is the nodes that cache submitted queries. The queries are u sed as indices to data cached in nodes that previously requested them. Analysis is performed and expressions are derived for the different parameters of the sys tem, most importantly the bounds on the number of query caching nodes for certai n performance-related measures such as hit ratio, response delay, and load. We d esign the messaging protocol, discuss how the system is formed and how requested data is found if cached, or retrieved from the external database and then cache d. We then analyze the system performance in terms of bandwidth consumption. Simula tions with the NS-2 software were performed to study the performance of the syst em in terms of average delay and hit ratio, and to compare it with the performan ce of no caching as well as two other caching schemes for MANETs, namely CachePa th and CacheData. The simulations demonstrate the superiority of the proposed sy stem over the other ones in terms of achieved hit ratio and delay. Finally, we p ropose future work that would allow for further improving the system performance.
Breakthrough Perspectives In Network And Data Communications Security Design And Applications
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Author : Bose, Indranil
language : en
Publisher: IGI Global
Release Date : 2008-12-31
Breakthrough Perspectives In Network And Data Communications Security Design And Applications written by Bose, Indranil and has been published by IGI Global this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-12-31 with Computers categories.
Addresses key issues and offers expert viewpoints into the field of network and data communications. Presents research articles that investigate the most significant issues in network and data communications.
Cooperative Internet Computing
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Author : Alvin T. S. Chan
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Cooperative Internet Computing written by Alvin T. S. Chan and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Computers categories.
The Second International Workshop on Cooperative Internet Computing (CIC2002) has brought together researchers, academics, and industry practitioners who are involved and interested in the development of advanced and emerging cooperative computing technologies. Cooperative computing is an important computing paradigm to enable different parties to work together towards a pre defined non-trivial goal. It encompasses important technological areas like computer supported cooperative work, workflow, computer assisted design and concurrent programming. As technologies continue to advance and evolve, there is an increasing need to research and develop new classes of middlewares and applications to leverage on the combined benefits of Internet and web to provide users and programmers with highly interactive and robust cooperative computing environment. It is the aim of this forum to promote close interactions and exchange of ideas among researchers, academics and practitioners on the state-of-the art researches in all of these exciting areas. We have partnered with Kluwer Acedamic Press this year to bring to you a book compilation of the papers that were presented at the CIC2002 workshop. The importance of the research area is reflected both in the quality and quantity of the submitted papers, where each paper was reviewed by at least three PC members. As a result, we were able to only accept 14 papers for full presentation at the workshop, while having to reject several excellent papers due to the limitations of the program schedule.
Scalability Of Networks And Services
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Author : Ramin Sadre
language : en
Publisher: Springer Science & Business Media
Release Date : 2009-06-15
Scalability Of Networks And Services written by Ramin Sadre and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-06-15 with Business & Economics categories.
This book constitutes the refereed proceedings of the Third International Conference on Autonomous Infrastructure, Management and Security, AIMS 2009, held in Enschede, The Netherlands, during June 30 - July 2, 2009 under the auspices of IFIP. The 12 revised full papers and three short papers presented together with 8 papers of the AIMS PhD workshop were carefully reviewed and selected from 28 submissions to the main conference and 15 papers for the PhD workshop respectively. The papers are organized in topical sections on network resource management, overlays and P2P networks, network configuration and optimization, as well as monitoring and visualization.
Dependable Networks And Services
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Author : Ramin Sadre
language : en
Publisher: Springer
Release Date : 2012-05-31
Dependable Networks And Services written by Ramin Sadre and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-05-31 with Computers categories.
This book constitutes the refereed proceedings of the 6th IFIP WG 6.6 International Conference on Autonomous Infrastructure, Management, and Security, AIMS 2012, held in Luxembourg in June 2012. The 10 full papers presented were carefully reviewed and selected from 23 submissions. They cover autonomic and distributed management, network security, network monitoring, and special environments and Internet of Things. In addition, this book contains 9 workshop papers which were selected from 18 submissions. They deal with high-speed networks and network management, intrusion detection, and network monitoring and security.