Download or read book Efficient Redundancy Techniques to Reduce Delay in Cloud Systems written by Gauri Joshi and published by . This book was released on 2016 with total page 209 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cloud services are changing the world by providing millions of people low-cost access to the computing power of data centers. Storing and processing data on shared servers in the cloud provides scalability and flexibility to these services. However the large-scale sharing of resources also causes unpredictable fluctuations in the response time of individual servers. In this thesis we use redundancy as a tool to combat this variability. We study three areas of cloud infrastructure: cloud computing, distributed storage, and streaming communication. In cloud computing, replicating a task on multiple machines and waiting for the earliest copy to finish can reduce service delay. But intuitively, it costs additional computing resources, and increases queueing load on the servers. In the first part of this thesis we analyze the eect of redundancy on queues. Surprisingly, there are regimes where replication not only reduces service delay but also reduces queueing load, thus making the system more ecient. Similarly, we can speed-up content download from cloud storage systems by requesting multiple replicas of a le and waiting for any one. In the second part of the thesis we generalize from replication to coding, and propose the (n, k) fork-join model to analyze the delay in accessing an (n, k) erasure-coded storage system. This analysis provides practical insights into how many users can access a piece of content simultaneously, and how fast they can be served. Achieving low latency is even more challenging in streaming communication because the packets need to be delivered fast and in-order. The third part of this thesis develops erasure codes to transmit redundant combinations of packets and ensure smooth playback. This thesis blends a diverse set of mathematical tools from queueing, coding theory, and renewal processes. Although we focus on cloud infrastructure, the techniques and insights are applicable to other systems with stochastically varying components.
Download or read book Information Technologies and Mathematical Modelling Queueing Theory and Applications written by Alexander Dudin and published by Springer. This book was released on 2018-08-27 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 17th International Conference on Information Technologies and Mathematical Modelling, ITMM 2018, named after A.F. Terpugov, and the 12th Workshop on Retrial Queues and Related Topics, held in Tomsk, Russia, in September 2018. The 30 papers presented in this volume were carefully reviewed and selected from 84 submissions. The conference covers various aspects of information technologies, focusing on queueing theory, stochastic processes, Markov processes, renewal theory, network performance equation and network protocols.
Download or read book Supercomputing written by Vladimir Voevodin and published by Springer Nature. This book was released on 2020-12-05 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed post-conference proceedings of the 6th Russian Supercomputing Days, RuSCDays 2020, held in Moscow, Russia, in September 2020.* The 51 revised full and 4 revised short papers presented were carefully reviewed and selected from 106 submissions. The papers are organized in the following topical sections: parallel algorithms; supercomputer simulation; HPC, BigData, AI: architectures, technologies, tools; and distributed and cloud computing. * The conference was held virtually due to the COVID-19 pandemic.
Download or read book Job Scheduling Strategies for Parallel Processing written by Dalibor Klusáček and published by Springer Nature. This book was released on 2023-09-14 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-conference proceedings of the 26th International Workshop on Job Scheduling Strategies for Parallel Processing, JSSPP 2023, held in St. Petersburg, FL, USA, during May 19, 2023. The 8 full papers and one keynote paper included in this book were carefully reviewed and selected from 14 submissions. The volume contains two sections: keynote and technical papers.
Download or read book Energy Efficient Redundant Configurations for Reliable Servers in Distributed Systems written by Dakai Zhu and published by . This book was released on 2007 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modular redundancy and temporal redundancy are traditional techniques to increase system reliability. In addition to being used as temporal redundancy, with technology advancements, slack time can also be used by energy management schemes to save energy. In this paper, we consider the combination of modular and temporal redundancy to achieve energy efficient reliable service provided by multiple servers. We first propose an efficient adaptive parallel recovery scheme that appropriately processes service requests in parallel to increase the number of faults that can be tolerated and thus system reliability. Then we explore schemes to determine the optimal redundant configurations of the parallel servers to minimize system energy consumption for a given reliability goal or to maximize system reliability for a given energy budget. Our analysis shows that small requests, optimistic approaches, and parallel recovery favor lower levels of modular redundancy, while restricted large requests, pessimistic approaches and serial recovery favor higher levels of modular redundancy.
Download or read book Algorithms and Architectures for Parallel Processing written by Zahir Tari and published by Springer Nature. This book was released on with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Network Coding written by Mohammad Matin and published by BoD – Books on Demand. This book was released on 2018-08-22 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Network coding is an elegant and novel technique that allows nodes in the network to perform coding operations at the packet level. In particular, network coding represents a powerful approach to protect data from losses due to link disconnections and can also exploit the combination of multiple links to deliver data to users with the possibility of recoding at intermediate nodes. This phenomenon will reduce information congestion at some nodes or links, which will improve the network information flow such as to increase network throughput and robustness. This book is intended to provide the current R
Download or read book Site Reliability Engineering written by Niall Richard Murphy and published by "O'Reilly Media, Inc.". This book was released on 2016-03-23 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overwhelming majority of a software system’s lifespan is spent in use, not in design or implementation. So, why does conventional wisdom insist that software engineers focus primarily on the design and development of large-scale computing systems? In this collection of essays and articles, key members of Google’s Site Reliability Team explain how and why their commitment to the entire lifecycle has enabled the company to successfully build, deploy, monitor, and maintain some of the largest software systems in the world. You’ll learn the principles and practices that enable Google engineers to make systems more scalable, reliable, and efficient—lessons directly applicable to your organization. This book is divided into four sections: Introduction—Learn what site reliability engineering is and why it differs from conventional IT industry practices Principles—Examine the patterns, behaviors, and areas of concern that influence the work of a site reliability engineer (SRE) Practices—Understand the theory and practice of an SRE’s day-to-day work: building and operating large distributed computing systems Management—Explore Google's best practices for training, communication, and meetings that your organization can use
Download or read book Computer Methods in Medicine and Health Care written by D. Bhattacharjee and published by IOS Press. This book was released on 2021-12-03 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computer technology has brought about incredible changes in medicine and healthcare, greatly improving the efficiency and accuracy of medical treatment. Since December 2019, in the face of the global effects of COVID-19, the significance of computer technology, and big data in particular, together with the collaborative network and unmanned technology, has been recognized by healthcare staff everywhere. Modern medical science cannot evolve without the involvement of computer science. This book presents the proceedings of the 2021 Workshop on Computer Methods in Medicine & Health Care (CMMHC 2021), the autumn edition of the TDI conferences, held as a virtual, online event on 24 – 26 September 2021. Researchers from renowned universities, laboratories and hospitals in China, Italy and Japan contributed to the workshop, and findings from both basic and clinical medicine are included in the 14 papers collected here. Big data technology appeared in 20% of all papers as the most popular topic, with one paper covering big data optimization and two describing its application. The book shares practical experiences and enlightening ideas from computer-based medicine and will be of interest to researchers in and practitioners of modern medicine everywhere.
Download or read book Beyond Redundancy written by Eric Bauer and published by John Wiley & Sons. This book was released on 2011-09-26 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: While geographic redundancy can obviously be a huge benefit for disaster recovery, it is far less obvious what benefit is feasible and likely for more typical non-catastrophic hardware, software, and human failures. Georedundancy and Service Availability provides both a theoretical and practical treatment of the feasible and likely benefits of geographic redundancy for both service availability and service reliability. The text provides network/system planners, IS/IT operations folks, system architects, system engineers, developers, testers, and other industry practitioners with a general discussion about the capital expense/operating expense tradeoff that frames system redundancy and georedundancy.
Download or read book Intelligent Internet of Things written by Farshad Firouzi and published by Springer Nature. This book was released on 2020-01-21 with total page 647 pages. Available in PDF, EPUB and Kindle. Book excerpt: This holistic book is an invaluable reference for addressing various practical challenges in architecting and engineering Intelligent IoT and eHealth solutions for industry practitioners, academic and researchers, as well as for engineers involved in product development. The first part provides a comprehensive guide to fundamentals, applications, challenges, technical and economic benefits, and promises of the Internet of Things using examples of real-world applications. It also addresses all important aspects of designing and engineering cutting-edge IoT solutions using a cross-layer approach from device to fog, and cloud covering standards, protocols, design principles, reference architectures, as well as all the underlying technologies, pillars, and components such as embedded systems, network, cloud computing, data storage, data processing, big data analytics, machine learning, distributed ledger technologies, and security. In addition, it discusses the effects of Intelligent IoT, which are reflected in new business models and digital transformation. The second part provides an insightful guide to the design and deployment of IoT solutions for smart healthcare as one of the most important applications of IoT. Therefore, the second part targets smart healthcare-wearable sensors, body area sensors, advanced pervasive healthcare systems, and big data analytics that are aimed at providing connected health interventions to individuals for healthier lifestyles.
Download or read book Fog Computing for Healthcare 4 0 Environments written by Sudeep Tanwar and published by Springer Nature. This book was released on 2020-08-02 with total page 621 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an analysis of the role of fog computing, cloud computing, and Internet of Things in providing uninterrupted context-aware services as they relate to Healthcare 4.0. The book considers a three-layer patient-driven healthcare architecture for real-time data collection, processing, and transmission. It gives insight to the readers for the applicability of fog devices and gateways in Healthcare 4.0 environments for current and future applications. It also considers aspects required to manage the complexity of fog computing for Healthcare 4.0 and also develops a comprehensive taxonomy.
Download or read book Communications and Networking written by Honghao Gao and published by Springer Nature. This book was released on 2022-04-04 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings constitutes the refereed proceedings of the 16th International Conference on Communications and Networking, ChinaCom 2021, held in November 2021. Due to COVID-19 pandemic the conference was held virtually. The 47 full papers and 5 workshop papers presented were carefully selected from 130 submissions. The papers are organized in topical sections on Scheduling and Transmission Optimization in Edge Computing; Complex System Optimization in Edge Computing; Network Communication Enhancement; Signal Processing and Communication Optimization; Deep Learning and Vehicular Communication; Edge Computing and Deep Learning; Finite Blocklength and Distributed Machine Learning; Deep Learning and Network Performance Optimization; Edge Computing and Reinforcement Learning.
Download or read book Cloud Computing CLOUD 2018 written by Min Luo and published by Springer. This book was released on 2018-06-19 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume constitutes the proceedings of the 11th International Conference on Cloud Computing, CLOUD 2018, held as part of the Services Conference Federation, SCF 2018, in Seattle, WA, USA, in June 2018.The 26 full papers presented together with 3 short papers were carefully reviewed and selected from 108 submissions. They are organized in topical sections such as cloud computing; client-server architectures; distributed systems organizing principles; storage virtualization; virtual machines; cloud based storage; distributed architectures; network services; and computing platforms.
Download or read book Handbook of Research on Securing Cloud Based Databases with Biometric Applications written by Deka, Ganesh Chandra and published by IGI Global. This book was released on 2014-10-31 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cloud technologies have revolutionized the way we store information and perform various computing tasks. With the rise of this new technology, the ability to secure information stored on the cloud becomes a concern. The Handbook of Research on Securing Cloud-Based Databases with Biometric Applications explores the latest innovations in promoting cloud security through human authentication techniques. Exploring methods of access by identification, including the analysis of facial features, fingerprints, DNA, dental characteristics, and voice patterns, this publication is designed especially for IT professionals, academicians, and upper-level students seeking current research surrounding cloud security.
Download or read book Data Deduplication Approaches written by Tin Thein Thwel and published by Academic Press. This book was released on 2020-11-25 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the age of data science, the rapidly increasing amount of data is a major concern in numerous applications of computing operations and data storage. Duplicated data or redundant data is a main challenge in the field of data science research. Data Deduplication Approaches: Concepts, Strategies, and Challenges shows readers the various methods that can be used to eliminate multiple copies of the same files as well as duplicated segments or chunks of data within the associated files. Due to ever-increasing data duplication, its deduplication has become an especially useful field of research for storage environments, in particular persistent data storage. Data Deduplication Approaches provides readers with an overview of the concepts and background of data deduplication approaches, then proceeds to demonstrate in technical detail the strategies and challenges of real-time implementations of handling big data, data science, data backup, and recovery. The book also includes future research directions, case studies, and real-world applications of data deduplication, focusing on reduced storage, backup, recovery, and reliability. Includes data deduplication methods for a wide variety of applications Includes concepts and implementation strategies that will help the reader to use the suggested methods Provides a robust set of methods that will help readers to appropriately and judiciously use the suitable methods for their applications Focuses on reduced storage, backup, recovery, and reliability, which are the most important aspects of implementing data deduplication approaches Includes case studies
Download or read book Network Coding written by Muriel Médard and published by Wiley. This book was released on 2016-01-26 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to network coding which avoids difficult mathematics and does not require a background in information theory. Emphasis is placed on how network coding techniques can be implemented, using a wide range of applications in communications and network engineering.
