Second International Workshop on Services in Distributed and Networked Environments最新文献

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Performance evaluation of a hierarchical replication protocol: synchronous versus asynchronous 分级复制协议的性能评估:同步与异步
N. Adly, J. Bacon, M. Nagi
{"title":"Performance evaluation of a hierarchical replication protocol: synchronous versus asynchronous","authors":"N. Adly, J. Bacon, M. Nagi","doi":"10.1109/SDNE.1995.470457","DOIUrl":"https://doi.org/10.1109/SDNE.1995.470457","url":null,"abstract":"This paper evaluates the performance of HARP, a hierarchical replication protocol based on nodes organized into a logical hierarchy. The scheme is based an communication with nearby replicas and scales well for thousands of replicas. It proposes a new service interface that provides different levels of asynchrony, allowing strong consistency and weak consistency to be integrated into the same framework. Further it provides the ability to offer different levels of staleness, by querying from different levels of the hierarchy. We present results from a detailed simulation analysis evaluating the benefits and losses in performance resulting from using synchronous versus asynchronous operations within HARP as well as comparing it with a traditional replication protocol.<<ETX>>","PeriodicalId":247378,"journal":{"name":"Second International Workshop on Services in Distributed and Networked Environments","volume":"210 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126128644","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: 2
Distributed architecture for applications based on the GSM short message service 基于GSM短消息业务的分布式应用体系结构
G. Martini, G. Rosenga
{"title":"Distributed architecture for applications based on the GSM short message service","authors":"G. Martini, G. Rosenga","doi":"10.1109/SDNE.1995.470452","DOIUrl":"https://doi.org/10.1109/SDNE.1995.470452","url":null,"abstract":"This paper presents a distributed architecture for the definition and the deployment of applications based on the Short Message Service of the GSM network, and illustrates a first prototype realization using OSF/DCE.<<ETX>>","PeriodicalId":247378,"journal":{"name":"Second International Workshop on Services in Distributed and Networked Environments","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129228257","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: 2
A transparent service for synchronized replication across loosely-connected file systems 用于跨松散连接的文件系统进行同步复制的透明服务
H. Rao, A. Skarra
{"title":"A transparent service for synchronized replication across loosely-connected file systems","authors":"H. Rao, A. Skarra","doi":"10.1109/SDNE.1995.470456","DOIUrl":"https://doi.org/10.1109/SDNE.1995.470456","url":null,"abstract":"n-DFS/Parrot is a service that provides synchronized file replication across two loosely-connected file systems. It propagates the modification of replicated files and directories from either file system to the other. Parrot guarantees sequential write sharing over a local- or wide-area network: file access under Parrot has exactly the same semantics as if all of the processes on both hosts were executing on a single time-sharing system and sharing a single copy of each file. Parrot implements a read-one write-all replication scheme as a shared library that runs within an application's address space. It preserves the operating system interface between applications and the file system; it requires no modification in the kernel or the applications.<<ETX>>","PeriodicalId":247378,"journal":{"name":"Second International Workshop on Services in Distributed and Networked Environments","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131922128","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: 9
Managing ANSA objects with OSI Network Management tools 使用OSI网络管理工具管理ANSA对象
G. Genilloud, M. Polizzi
{"title":"Managing ANSA objects with OSI Network Management tools","authors":"G. Genilloud, M. Polizzi","doi":"10.1109/SDNE.1995.470460","DOIUrl":"https://doi.org/10.1109/SDNE.1995.470460","url":null,"abstract":"OSI Network Management provides a general framework for the management of OSI systems, and by extension of any distributed system. However, as this model is not well-adapted for management of software components, distributed programming environments (e.g. DCE, CORBA, ANSAware) essentially ignore the OSI Network Management model. We assume nevertheless that OSI Network managers want to have some control of a distributed infrastructure and application. We examine how access to some of the ANSA (distributed programming environment) objects can be given to OSI Network managers. An implementation of an ANSA-OSI adapter is then presented.<<ETX>>","PeriodicalId":247378,"journal":{"name":"Second International Workshop on Services in Distributed and Networked Environments","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124484026","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
Providing scalable Web service using multicast delivery 使用多播传递提供可伸缩的Web服务
R. Clark, M. Ammar
{"title":"Providing scalable Web service using multicast delivery","authors":"R. Clark, M. Ammar","doi":"10.1109/SDNE.1995.470467","DOIUrl":"https://doi.org/10.1109/SDNE.1995.470467","url":null,"abstract":"The recent growth in use of the World-Wide Web in the Internet has caused a significant increase in the demand placed on Web servers. This increased load results in noticeably longer response times for users. We propose an approach to using multicast in the delivery of Web resources that reduces the load on servers as well as the networks that connect them. We analyze the issues involved in using multicast in the Web, especially those related to routing and addressing. We also discuss the design and implementation of a system based on the existing WWW client and server architecture and the multicast support provided within IP.<<ETX>>","PeriodicalId":247378,"journal":{"name":"Second International Workshop on Services in Distributed and Networked Environments","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121641783","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: 32
Service location in an open distributed environment 开放分布式环境中的服务位置
A. Beitz, M. Bearman, A. Vogel
{"title":"Service location in an open distributed environment","authors":"A. Beitz, M. Bearman, A. Vogel","doi":"10.1109/SDNE.1995.470466","DOIUrl":"https://doi.org/10.1109/SDNE.1995.470466","url":null,"abstract":"The paper describes a service location function that maps a service name obtained from a trader onto service access information which can be used to invoke the traded service. The emphasis of the work is on the solutions of problems presented by an open distributed environment. Specifically, our service location function addresses the handling of: i. Heterogeneous naming systems that exist in open systems; ii. The dynamic evolution of naming systems that can occur in open systems; iii. Heterogeneous access systems that exist in open systems. The paper also describes some details of an early prototype for such a service location function.<<ETX>>","PeriodicalId":247378,"journal":{"name":"Second International Workshop on Services in Distributed and Networked Environments","volume":"182 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133250770","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: 11
Optimizing World-Wide Web for weakly connected mobile workstations: An indirect approach 为弱连接移动工作站优化万维网:一种间接方法
M. Liljeberg, T. Alanko, M. Kojo, Hannu Laamanen, K. Raatikainen
{"title":"Optimizing World-Wide Web for weakly connected mobile workstations: An indirect approach","authors":"M. Liljeberg, T. Alanko, M. Kojo, Hannu Laamanen, K. Raatikainen","doi":"10.1109/SDNE.1995.470453","DOIUrl":"https://doi.org/10.1109/SDNE.1995.470453","url":null,"abstract":"Modern portable computers and wireless connections over cellular telephone networks have created a new platform for distributed information processing. We have designed a communication architecture that makes it possible to exploit the existing TCP/IP communication protocols but that also takes into account specific features of cellular links. Our communication architecture is based on the concept of indirect interaction. The mediating interceptor is the bridge between the worlds of wireless and wireline communication. It also provides enhanced functionality that improves fault-tolerance and performance. In this paper we demonstrate how the architecture is used to improve the performance of the WWW information browsing. Similar solution methods can be applied to other existing applications and protocols.<<ETX>>","PeriodicalId":247378,"journal":{"name":"Second International Workshop on Services in Distributed and Networked Environments","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121698890","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: 80
A TINA-like computational model and its implementation within an object-oriented distributed transactional platform 类似tina的计算模型及其在面向对象的分布式事务平台中的实现
P. Bosco, E. Grasso, G. Martini, C. Moiso
{"title":"A TINA-like computational model and its implementation within an object-oriented distributed transactional platform","authors":"P. Bosco, E. Grasso, G. Martini, C. Moiso","doi":"10.1109/SDNE.1995.470465","DOIUrl":"https://doi.org/10.1109/SDNE.1995.470465","url":null,"abstract":"The paper describes ODIN (Object Distributed INterfaces), a prototype implementation of MODA (a Model for an Object Distributed Architecture), which is the CSELT model aligned with ISO/ODP Reference Model. The work presents a prototype implementation based on OSF/DCE and extends the results of a previous activity by implementing an extended transaction model.<<ETX>>","PeriodicalId":247378,"journal":{"name":"Second International Workshop on Services in Distributed and Networked Environments","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124106145","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: 1
Application-level document caching in the Internet Internet中的应用程序级文档缓存
Azer Bestavros, R. Carter, M. Crovella, Carlos R. Cunha, A. Heddaya, Sulaiman Mirdad
{"title":"Application-level document caching in the Internet","authors":"Azer Bestavros, R. Carter, M. Crovella, Carlos R. Cunha, A. Heddaya, Sulaiman Mirdad","doi":"10.1109/SDNE.1995.470449","DOIUrl":"https://doi.org/10.1109/SDNE.1995.470449","url":null,"abstract":"With the increasing demand for document transfer services such as the World Wide Web comes a need for better resource management to reduce the latency of documents in these systems. To address this need, we analyze the potential for document caching at the application level in document transfer services. We have collected traces of actual executions of Mosaic, reflecting over half a million user requests for WWW documents. Using those traces, we study the tradeoffs between caching at three levels in the system, and the potential for use of application-level information in the caching system. Our traces show that while a high hit rate in terms of URLs is achievable, a much lower hit rate is possible in terms of bytes, because most profitably-cached documents are small. We consider the performance of caching when applied at the level of individual user sessions, at the level of individual hosts, and at the level of a collection of hosts on a single LAN. We show that the performance gain achievable by caching at the session level (which is straightforward to implement) is nearly all of that achievable at the LAN level (where caching is more difficult to implement). However, when resource requirements are considered, LAN level caching becomes muck more desirable, since it can achieve a given level of caching performance using a much smaller amount of cache space. Finally, we consider the use of organizational boundary information as an example of the potential for use of application-level information in caching. Our results suggest that distinguishing between documents produced locally and those produced remotely can provide useful leverage in designing caching policies, because of differences in the potential for sharing these two document types among multiple users.<<ETX>>","PeriodicalId":247378,"journal":{"name":"Second International Workshop on Services in Distributed and Networked Environments","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129085806","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: 186
Requirements monitoring in distributed environments 分布式环境中的需求监控
S. Fickas, M. Feather
{"title":"Requirements monitoring in distributed environments","authors":"S. Fickas, M. Feather","doi":"10.1109/SDNE.1995.470458","DOIUrl":"https://doi.org/10.1109/SDNE.1995.470458","url":null,"abstract":"We propose requirements monitoring to aid in the maintenance of systems that reside in dynamic, distributed environments. By requirements monitoring we mean the insertion of code into a running system to gather information from which it can be determined whether, and to what degree, that running system is meeting its requirements. Monitoring is a commonly applied technique in support of performance tuning, but the focus therein is primarily on computational performance requirements in short runs of systems. We wish to address systems that operate in a long-lived, ongoing fashion in non-scientific, enterprise applications. We argue that the results of requirements monitoring can be of benefit to the designers, maintainers and users of a system-alerting them when the system is being used in an environment for which it was not designed, and giving them the information they need to direct their redesign of the system. Studies of two commercial systems are used to illustrate and justify our claims.<<ETX>>","PeriodicalId":247378,"journal":{"name":"Second International Workshop on Services in Distributed and Networked Environments","volume":"259 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122533840","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: 3
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