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Guest Editors' introduction 特邀编辑介绍
Distributed Syst. Eng. Pub Date : 1997-09-01 DOI: 10.1088/0967-1846/4/3/001
R. Guerraoui, S. Vinoski
{"title":"Guest Editors' introduction","authors":"R. Guerraoui, S. Vinoski","doi":"10.1088/0967-1846/4/3/001","DOIUrl":"https://doi.org/10.1088/0967-1846/4/3/001","url":null,"abstract":"","PeriodicalId":404872,"journal":{"name":"Distributed Syst. Eng.","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128121411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Replica consistency of CORBA objects in partitionable distributed systems 可分区分布式系统中CORBA对象的副本一致性
Distributed Syst. Eng. Pub Date : 1997-09-01 DOI: 10.1088/0967-1846/4/3/003
P. Narasimhan, L. Moser, P. Melliar-Smith
{"title":"Replica consistency of CORBA objects in partitionable distributed systems","authors":"P. Narasimhan, L. Moser, P. Melliar-Smith","doi":"10.1088/0967-1846/4/3/003","DOIUrl":"https://doi.org/10.1088/0967-1846/4/3/003","url":null,"abstract":"The Eternal system enhances the CORBA standard to provide fault tolerance within distributed systems that are susceptible to network partitioning. Fault tolerance is achieved through consistent replication of both client and server objects. Objects may be actively or passively replicated, and replicated objects of both types may coexist. Nested operations involving both active and passive objects are accommodated. Suppression of duplicate operations is ensured by unique message and operation identifiers. Continued operation is allowed in all components of a partitioned network. State transfer mechanisms and fulfilment operations restore the consistency of the states of the replicas when communication is re-established and the components remerge.","PeriodicalId":404872,"journal":{"name":"Distributed Syst. Eng.","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130210331","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 62
Object Management Group object transaction service based on an X/Open and International Organization for Standardization open systems interconnection transaction processing kernel 对象管理组对象事务服务基于一个X/Open和国际标准化组织开放系统互连事务处理内核
Distributed Syst. Eng. Pub Date : 1997-09-01 DOI: 10.1088/0967-1846/4/3/004
Jian Liang, S. Sédillot, B. Traverson
{"title":"Object Management Group object transaction service based on an X/Open and International Organization for Standardization open systems interconnection transaction processing kernel","authors":"Jian Liang, S. Sédillot, B. Traverson","doi":"10.1088/0967-1846/4/3/004","DOIUrl":"https://doi.org/10.1088/0967-1846/4/3/004","url":null,"abstract":"This paper addresses federation of a transactional object standard - Object Management Group (OMG) object transaction service (OTS) - with the X/Open distributed transaction processing (DTP) model and International Organization for Standardization (ISO) open systems interconnection (OSI) transaction processing (TP) communication protocol. The two-phase commit propagation rules within a distributed transaction tree are similar in the X/Open, ISO and OMG models. Building an OTS on an OSI TP protocol machine is possible because the two specifications are somewhat complementary. OTS defines a set of external interfaces without specific internal protocol machine, while OSI TP specifies an internal protocol machine without any application programming interface. Given these observations, and having already implemented an X/Open two-phase commit transaction toolkit based on an OSI TP protocol machine, we analyse the feasibility of using this implementation as a transaction service provider for OMG interfaces. Based on the favourable result of this feasibility study, we are implementing an OTS compliant system, which, by initiating the extensibility and openness strengths of OSI TP, is able to provide interoperability between X/Open DTP and OMG OTS models.","PeriodicalId":404872,"journal":{"name":"Distributed Syst. Eng.","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125306200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
GEM: a generalized event monitoring language for distributed systems GEM:用于分布式系统的通用事件监视语言
Distributed Syst. Eng. Pub Date : 1997-06-01 DOI: 10.1088/0967-1846/4/2/004
M. Mansouri-Samani, M. Sloman
{"title":"GEM: a generalized event monitoring language for distributed systems","authors":"M. Mansouri-Samani, M. Sloman","doi":"10.1088/0967-1846/4/2/004","DOIUrl":"https://doi.org/10.1088/0967-1846/4/2/004","url":null,"abstract":"Event-based monitoring is critical for managing and debugging networks and distributed systems. This paper presents GEM - an interpreted generalized event monitoring language. It allows high-level, abstract events to be specified in terms of combinations of lower-level events from different nodes in a loosely coupled distributed system. Event monitoring components can thus be distributed within the system to perform filtering, correlation and notification of events close to where they occur and thus reduce network traffic. GEM is a declarative rule-based language in which the notion of real time has been closely integrated and various temporal constraints can be specified for event composition. The paper discusses the effect of communication delays on composite event detection and presents a tree-based solution for dealing with out-of-order event arrivals at event monitors.","PeriodicalId":404872,"journal":{"name":"Distributed Syst. Eng.","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125353848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 269
A total ordering protocol using a dynamic token-passing scheme 使用动态令牌传递方案的总排序协议
Distributed Syst. Eng. Pub Date : 1997-06-01 DOI: 10.1088/0967-1846/4/2/003
Jong-Sung Kim, Cheeha Kim
{"title":"A total ordering protocol using a dynamic token-passing scheme","authors":"Jong-Sung Kim, Cheeha Kim","doi":"10.1088/0967-1846/4/2/003","DOIUrl":"https://doi.org/10.1088/0967-1846/4/2/003","url":null,"abstract":"Solutions to the total ordering problem can be used to maintain consistency in distributed system applications such as replicated databases. We propose a total ordering protocol based on a dynamic token-passing scheme which determines the next token holder dynamically, not in predetermined order. The proposed protocol provides fast stability time, uses a small buffer, and distributes evenly the load of ordering messages to accomplish a total message ordering. We present simulation results to illustrate that the performance of the proposed protocol is superior to that of existing token-based total ordering protocols.","PeriodicalId":404872,"journal":{"name":"Distributed Syst. Eng.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115398736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 29
High-performance asynchronous atomic broadcast 高性能异步原子广播
Distributed Syst. Eng. Pub Date : 1997-06-01 DOI: 10.1088/0967-1846/4/2/005
F. Cristian, Shivakant Mishra, G. A. Alvarez
{"title":"High-performance asynchronous atomic broadcast","authors":"F. Cristian, Shivakant Mishra, G. A. Alvarez","doi":"10.1088/0967-1846/4/2/005","DOIUrl":"https://doi.org/10.1088/0967-1846/4/2/005","url":null,"abstract":"We describe two families of asynchronous atomic broadcast protocols that provide good delivery and stability times, use a small number of messages to accomplish a broadcast, distribute the load of ordering messages evenly among group members, use efficient flow-control techniques, and provide gracefully degraded performance in the presence of communication failures. The pinwheel protocols are designed for applications characterized by a uniform message arrival pattern. The on-demand protocol is designed for non-uniform, bursty message arrivals. The protocols tolerate omission/performance communication failures and crash/performance process failures. Simulation studies for the pinwheel protocols demonstrate that they have superior performance over other well known atomic broadcast protocols, for uniform message arrival rates. We also report measurements taken on prototype implementations, that show very good results and a substantial performance advantage of the on-demand protocol for non-uniform and intermediate message arrival patterns.","PeriodicalId":404872,"journal":{"name":"Distributed Syst. Eng.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123844491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 55
A QoS adaptive multimedia transport system: design, implementation and experiences 一种QoS自适应多媒体传输系统:设计、实现与经验
Distributed Syst. Eng. Pub Date : 1997-03-01 DOI: 10.1088/0967-1846/4/1/006
A. Campbell, G. Coulson
{"title":"A QoS adaptive multimedia transport system: design, implementation and experiences","authors":"A. Campbell, G. Coulson","doi":"10.1088/0967-1846/4/1/006","DOIUrl":"https://doi.org/10.1088/0967-1846/4/1/006","url":null,"abstract":"The long awaited `new environment' of high speed broadband networks and multimedia applications is fast becoming a reality. However, few systems in existence today, whether they be large scale pilots or small scale test-beds in research laboratories, offer a fully integrated and flexible environment where multimedia applications can maximally exploit the quality of service (QoS) capabilities of supporting networks and end-systems. In this paper we describe the implementation of an adaptive transport system that incorporates a QoS oriented API and a range of mechanisms to assist applications in exploiting QoS and adapting to fluctuations in QoS. The system, which is an instantiation of the Lancaster QoS Architecture, is implemented in a multi ATM switch network environment with Linux based PC end systems and continuous media file servers. A performance evaluation of the system configured to support video-on-demand application scenario is presented and discussed. Emphasis is placed on novel features of the system and on their integration into a complete prototype. The most prominent novelty of our design is a `distributed QoS adaptation' scheme which allows applications to delegate to the system responsibility for augmenting and reducing the perceptual quality of video and audio flows when resource availability increases or decreases.","PeriodicalId":404872,"journal":{"name":"Distributed Syst. Eng.","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121930421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 24
On the effects of smoothing for deterministic QoS 平滑对确定性QoS的影响
Distributed Syst. Eng. Pub Date : 1997-03-01 DOI: 10.1088/0967-1846/4/1/002
E. Knightly, Paola Rossaro
{"title":"On the effects of smoothing for deterministic QoS","authors":"E. Knightly, Paola Rossaro","doi":"10.1088/0967-1846/4/1/002","DOIUrl":"https://doi.org/10.1088/0967-1846/4/1/002","url":null,"abstract":"In order for a network to provide end-to-end guarantees on quality of service (QoS), it must allocate its resources according to the traffic characteristics and performance requirements of its clients. However, the burstiness of typical variable bit rate traffic streams makes it difficult to provide the QoS guarantees that the network's clients require and simultaneously make efficient use of network resources. In this paper, we investigate the impact that smoothing traffic at the network's edge has on both the client's QoS and on the network's utilization. Considering the case of end-to-end deterministic QoS guarantees, we explore the analytical foundations of smoothing and identify the scenarios in which smoothing is beneficial to the network or its clients. Moreover, we quantify the potential benefits of smoothing with a set of experiments based on traces of MPEG-compressed video in heterogeneous multi-hop networking environments.","PeriodicalId":404872,"journal":{"name":"Distributed Syst. Eng.","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130823001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
Quality of service management using generic modelling and monitoring techniques 使用通用建模和监控技术的服务质量管理
Distributed Syst. Eng. Pub Date : 1997-03-01 DOI: 10.1088/0967-1846/4/1/004
Leonard J. N. Franken, B. Haverkort
{"title":"Quality of service management using generic modelling and monitoring techniques","authors":"Leonard J. N. Franken, B. Haverkort","doi":"10.1088/0967-1846/4/1/004","DOIUrl":"https://doi.org/10.1088/0967-1846/4/1/004","url":null,"abstract":"In our previous work, we have presented the performability manager, a distributed environment component that, using a model-based approach, realizes and maintains user-requested QoS. Generic modelling and monitoring techniques are inevitable for such a model-based approach. The planning of user-requested QoS is done by the evaluation of automatically created models out of a library of model components, while achieved QoS is checked using monitoring. In this paper we experiment with the generic modelling and monitoring of a multimedia service in an open distributed processing environment. We both use simulation and numerical techniques to evaluate the models. In this particular case study, end-user requested QoS is specified by throughput, mean end-to-end delay and delay-jitter.","PeriodicalId":404872,"journal":{"name":"Distributed Syst. Eng.","volume":"157 11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128782310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Some principles for quality of service management 服务质量管理的一些原则
Distributed Syst. Eng. Pub Date : 1997-03-01 DOI: 10.1088/0967-1846/4/1/003
G. Bochmann, A. Hafid
{"title":"Some principles for quality of service management","authors":"G. Bochmann, A. Hafid","doi":"10.1088/0967-1846/4/1/003","DOIUrl":"https://doi.org/10.1088/0967-1846/4/1/003","url":null,"abstract":"Distributed multimedia applications require a variety of levels of quality of service (QoS) from communication networks and end-systems which realize the multimedia interface with the human users or provide remotely accessed multimedia information. The management of these services has to take into account the available resources and the user's wishes concerning the desired quality and costs. Based on our experience with the construction of a News-on-Demand prototype, we present in this paper a few simple principles applying to QoS management for distributed multimedia applications. We discuss in particular ways in which an application can adapt to reduced network performance related to throughput, loss, delay or jitter, and we consider the situation where the configuration of the distributed application can be selected dynamically and be revised during the running of the application. We also comment on the handling of QoS in a layered system architecture and the use of performance models for QoS management.","PeriodicalId":404872,"journal":{"name":"Distributed Syst. Eng.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128503183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 65
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