Download or read book Broadcast Agreement Protocols for Distributed Systems written by P. Michael Melliar-Smith and published by . This book was released on 1989 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "We present an innovative approach to the design of fault-tolerant distributed systems that avoids the several rounds of message exchange required by current protocols for consensus agreement. The approach is based on broadcast communication over a local area network, such as the Ethernet, and on two novel protocols, the Trans protocol, which provides efficient reliable broadcast communication, and the Total protocol, which with high probability promptly places a total order on messages and achieves distributed agreement even in the presence of faults. Reliable distributed operations, such as locking, update and commitment, usually require only a single broadcast message rather than the several tens of messages required by current algorithms."

Download or read book Advances in Cryptology CRYPTO 2001 written by Joe Kilian and published by Springer. This book was released on 2003-05-15 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crypto 2001, the 21st Annual Crypto conference, was sponsored by the Int- national Association for Cryptologic Research (IACR) in cooperation with the IEEE Computer Society Technical Committee on Security and Privacy and the Computer Science Department of the University of California at Santa Barbara. The conference received 156 submissions, of which the program committee selected 34 for presentation; one was later withdrawn. These proceedings contain the revised versions of the 33 submissions that were presented at the conference. These revisions have not been checked for correctness, and the authors bear full responsibility for the contents of their papers. The conference program included two invited lectures. Mark Sherwin spoke on, \Quantum information processing in semiconductors: an experimentalist’s view." Daniel Weitzner spoke on, \Privacy, Authentication & Identity: A recent history of cryptographic struggles for freedom." The conference program also included its perennial \rump session," chaired by Stuart Haber, featuring short, informal talks on late{breaking research news. As I try to account for the hours of my life that ?ew o to oblivion, I realize that most of my time was spent cajoling talented innocents into spending even more time on my behalf. I have accumulated more debts than I can ever hope to repay. As mere statements of thanks are certainly insu cient, consider the rest of this preface my version of Chapter 11.

Download or read book Multicoordinated Agreement Protocols and the Log Service written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Agreement problems are a common abstraction in distributed systems. They appear when the components of the system must concur on reconfigurations, changes of state, or in lines of action in general. Examples of agreement problems are Consensus, Atomic Commitment, and Atomic Broadcast. In this thesis we investigate these abstractions in the context of the environment in which they will run and the applications that they will serve; in general, we consider the asynchronous crash-recovery model. The goal is to devise protocols that explore the contextual information to deliver improved availability. The correctness of our protocols holds even when the extra assumptions do not. In the first part of this thesis we explore the following property: messages broadcast in small networks tend to be delivered in order and reliably. We make three contributions in this part. The first contribution is to turn known Consensus algorithms that harness this ordering property to reach agreement in the crash-stop model into practical protocols. That is, protocols that tolerate message losses and recovery after crashes, efficiently. Our protocols ensure progress even in the presence of failures, if spontaneous ordering holds frequently. In the absence of spontaneous ordering, some other assumption is required to cope with failures. The second contribution of this thesis is to generalize one of our crash-recovery consensus protocols as a ``multicoordinated'' mode of a hybrid Consensus protocol, that may use spontaneous ordering or failure detection to progress. Compared to other protocols, ours provide improved availability with no price in resilience. The third contribution is to employ this new mode to solve Generalized Consensus, a problem that generalizes a series of other agreement problems and, hence, is of much practical interest. Moreover, we considered several aspects of solving this problem in practice, which had not been considered before. As a result, our Generalized Consensus.

Download or read book Communication and Agreement Abstractions for Fault Tolerant Asynchronous Distributed Systems written by Michel Raynal and published by Morgan & Claypool Publishers. This book was released on 2010-06-06 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding distributed computing is not an easy task. This is due to the many facets of uncertainty one has to cope with and master in order to produce correct distributed software. Considering the uncertainty created by asynchrony and process crash failures in the context of message-passing systems, the book focuses on the main abstractions that one has to understand and master in order to be able to produce software with guaranteed properties. These fundamental abstractions are communication abstractions that allow the processes to communicate consistently (namely the register abstraction and the reliable broadcast abstraction), and the consensus agreement abstractions that allows them to cooperate despite failures. As they give a precise meaning to the words "communicate" and "agree" despite asynchrony and failures, these abstractions allow distributed programs to be designed with properties that can be stated and proved. Impossibility results are associated with these abstractions. Hence, in order to circumvent these impossibilities, the book relies on the failure detector approach, and, consequently, that approach to fault-tolerance is central to the book. Table of Contents: List of Figures / The Atomic Register Abstraction / Implementing an Atomic Register in a Crash-Prone Asynchronous System / The Uniform Reliable Broadcast Abstraction / Uniform Reliable Broadcast Abstraction Despite Unreliable Channels / The Consensus Abstraction / Consensus Algorithms for Asynchronous Systems Enriched with Various Failure Detectors / Constructing Failure Detectors

Download or read book Trans written by P. Michael Melliar-Smith and published by . This book was released on 1988 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "Distributed systems can make effective use of broadcast or multicast communication for reaching distributed agreement, but such communication is not supported by existing protocols. Trans is a novel reliable broadcast protocol for the data link layer of the ISO protocol hierarchy. The protocol exploits the broadcast nature of the physical communication media typically used in local area networks. A combination of positive and negative acknowledgment strategies, with transitivity of positive acknowlegdments, allows reliable operation without requiring a separate acknowledgment from every recipient of a message."

Download or read book Principles of Distributed Systems written by James H. Anderson and published by Springer. This book was released on 2007-01-23 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed post-proceedings of the 9th International Conference on Principles of Distributed Systems, OPODIS 2005, held in Pisa, Italy in December 2005. The volume presents 30 revised full papers and abstracts of 2 invited talks. The papers are organized in topical sections on nonblocking synchronization, fault-tolerant broadcast and consensus, self-stabilizing systems, peer-to-peer systems and collaborative environments, sensor networks and mobile computing, security and verification, real-time systems, and peer-to-peer systems.

Download or read book Theory and Practice in Distributed Systems written by Kenneth P. Birman and published by Springer Science & Business Media. This book was released on 1995-07-14 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the current knowledge on a cascade of gene regulation levels which operate in the cytoplasm of eukaryotic cells and which has until recently been poorly understood. While transcriptional control of eukaryotic genes has been extensively researched and the understanding of this process has reached very sophisticated levels, post- transcriptional control has received much less attention. As the contributions in this book demonstrate, not only is post-transcriptional control in eukaryotes better understood, it is now thought to be a major player in gene expression control in a number of key processes, i.e. control of cell proliferation, gametogenesis and early development or cellular homeostasis.

Download or read book Distributed Computing written by Dahlia Malkhi and published by Springer Science & Business Media. This book was released on 2002-10-14 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 16th International Conference on Distributed Computing, DISC 2002, held in Toulouse, France, in October 2002. The 24 revised full papers presented were carefully reviewed and selected from 76 submissions. Among the issues addressed are broadcasting, secure computation, view maintenance, communication protocols, distributed agreement, self-stabilizing algorithms, message-passing systems, dynamic networks, condition monitoring systems, shared memory computing, Byzantine processes, routing, failure detection, compare-and-swap operations, cooperative computation, and consensus algorithms.

Download or read book Impossibility of Asynchronous Fault tolerant Broadcast Protocols for Reaching Agreement written by Louise E. Moser and published by . This book was released on 1988 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: "The impossibility of reaching agreement in an asynchronous distributed system based on broadcast communication is demonstrated. The broadcast model captures the idea of a broadcast bus in which messages, if delivered, are delivered immediately and in order. However, messages are not necessarily delivered to all processes, but infinitely often each nonfaulty process broadcasts a message that is received by all processes. In such an asynchronous distributed system we show that there cannot exist a protocol for reaching agreement even if only one process is faulty."

Download or read book Proceedings written by IEEE Computer Society. TC on Distributed Processing and published by . This book was released on 1993 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers of the Princeton, NJ symposium held Oct. 6-8, 1993 on security, prototype systems, math techniques, checkpointing, agreement protocol. No index. Annotation copyright Book News, Inc. Portland, Or.

Download or read book Principles of Distributed Systems written by Antonio Fernández Anta and published by Springer. This book was released on 2011-12-09 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 15th International Conference on Principles of Distributed Systems, OPODIS 2011, held in Toulouse, France, in December 2011. The 26 revised papers presented in this volume were carefully reviewed and selected from 96 submissions. They represent the current state of the art of the research in the field of the design, analysis and development of distributed and real-time systems.

Download or read book Efficient Agreement Protocols In Asynchronous Distributed Systems written by Izabela Moise and published by . This book was released on 2011 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Consensus problem is recognized as a central paradigm of fault-tolerant distributed computing. In a purely asynchronous system, consensus is impossible to solve in a deterministic manner. By enriching the system with some synchrony assumptions, several solutions were proposed in order to circumvent the impossibility result, among which the Paxos protocol. This work represents a contribution to the construction of efficient consensus protocols in asynchronous distributed systems. The algorithmic contribution of the thesis consists of an efficient framework, called the Paxos-MIC protocol, that follows the Paxos approach and integrates two existing optimizations. Paxos-MIC generates a sequence of consensus instances and guarantees the persistence of all decision values. The main feature of the protocol is its adaptability. As one of the optimizations may be counterproductive, Paxos-MIC incorporates a triggering mechanism that dynamically enables the optimization. The mechanism relies on several triggering criteria able to predict if the use of the optimization will be beneficial. Extensive experiments on the Grid'5000 testbed were carried out with the purpose of evaluating the protocol and the efficiency of the triggering criteria. A second part of the work focuses on the use of consensus as a building-block for higher-level applications. We consider the particular context of transactional mobile agents and we propose a solution to support the execution of transactions in an ad-hoc network. This solution relies on an everlasting sequence of decision values generated by repeatedly invoking a consensus building-block. This service is provided by the Paxos-MIC framework.

Download or read book Distributed Computing written by Rachid Guerraoui and published by Springer Science & Business Media. This book was released on 2004-10-05 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 18th International Conference on Distributed Computing, DISC 2004, held in Amsterdam, The Netherlands, in October 2004. The 31 revised full papers presented together with an extended abstract of an invited lecture and an eulogy for Peter Ruzicka were carefully reviewed and selected from 142 submissions. The entire scope of current issues in distributed computing is addressed, ranging from foundational and theoretical topics to algorithms and systems issues to applications in various fields.

Download or read book Principles of Distributed Systems written by Chenyang Lu and published by Springer Science & Business Media. This book was released on 2010-12-02 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 14th International Conference on Principles of Distributed Systems, OPODIS 2010, held in Tozeur, Tunisia, in December 2010. The 32 full papers and 4 brief announcements presented were carefully reviewed and selected from 122 submissions. The papers are organized in topical sections on robots; randomization in distributed algorithms; brief announcements; graph algorithms; fault-tolerance; distributed programming; real-time; shared memory; and concurrency.

Download or read book Introduction to Reliable Distributed Programming written by Rachid Guerraoui and published by Springer Science & Business Media. This book was released on 2006-05-01 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: In modern computing a program is usually distributed among several processes. The fundamental challenge when developing reliable distributed programs is to support the cooperation of processes required to execute a common task, even when some of these processes fail. Guerraoui and Rodrigues present an introductory description of fundamental reliable distributed programming abstractions as well as algorithms to implement these abstractions. The authors follow an incremental approach by first introducing basic abstractions in simple distributed environments, before moving to more sophisticated abstractions and more challenging environments. Each core chapter is devoted to one specific class of abstractions, covering reliable delivery, shared memory, consensus and various forms of agreement. This textbook comes with a companion set of running examples implemented in Java. These can be used by students to get a better understanding of how reliable distributed programming abstractions can be implemented and used in practice. Combined, the chapters deliver a full course on reliable distributed programming. The book can also be used as a complete reference on the basic elements required to build reliable distributed applications.

Download or read book Fault Tolerant Parallel and Distributed Systems written by Dimiter R. Avresky and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most important use of computing in the future will be in the context of the global "digital convergence" where everything becomes digital and every thing is inter-networked. The application will be dominated by storage, search, retrieval, analysis, exchange and updating of information in a wide variety of forms. Heavy demands will be placed on systems by many simultaneous re quests. And, fundamentally, all this shall be delivered at much higher levels of dependability, integrity and security. Increasingly, large parallel computing systems and networks are providing unique challenges to industry and academia in dependable computing, espe cially because of the higher failure rates intrinsic to these systems. The chal lenge in the last part of this decade is to build a systems that is both inexpensive and highly available. A machine cluster built of commodity hardware parts, with each node run ning an OS instance and a set of applications extended to be fault resilient can satisfy the new stringent high-availability requirements. The focus of this book is to present recent techniques and methods for im plementing fault-tolerant parallel and distributed computing systems. Section I, Fault-Tolerant Protocols, considers basic techniques for achieving fault-tolerance in communication protocols for distributed systems, including synchronous and asynchronous group communication, static total causal order ing protocols, and fail-aware datagram service that supports communications by time.

Download or read book Distributed Computing Through Combinatorial Topology written by Maurice Herlihy and published by Newnes. This book was released on 2013-11-30 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Distributed Computing Through Combinatorial Topology describes techniques for analyzing distributed algorithms based on award winning combinatorial topology research. The authors present a solid theoretical foundation relevant to many real systems reliant on parallelism with unpredictable delays, such as multicore microprocessors, wireless networks, distributed systems, and Internet protocols. Today, a new student or researcher must assemble a collection of scattered conference publications, which are typically terse and commonly use different notations and terminologies. This book provides a self-contained explanation of the mathematics to readers with computer science backgrounds, as well as explaining computer science concepts to readers with backgrounds in applied mathematics. The first section presents mathematical notions and models, including message passing and shared-memory systems, failures, and timing models. The next section presents core concepts in two chapters each: first, proving a simple result that lends itself to examples and pictures that will build up readers' intuition; then generalizing the concept to prove a more sophisticated result. The overall result weaves together and develops the basic concepts of the field, presenting them in a gradual and intuitively appealing way. The book's final section discusses advanced topics typically found in a graduate-level course for those who wish to explore further. Named a 2013 Notable Computer Book for Computing Methodologies by Computing Reviews Gathers knowledge otherwise spread across research and conference papers using consistent notations and a standard approach to facilitate understanding Presents unique insights applicable to multiple computing fields, including multicore microprocessors, wireless networks, distributed systems, and Internet protocols Synthesizes and distills material into a simple, unified presentation with examples, illustrations, and exercises