Triantafillou, P. and Taylor, D. J. (1995) The locationbased paradigm for replication: Achieving efficiency and availability in distributed systems. IEEE Trans. Softw. Eng., 21, 1--18.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....of a quorum system is the asynchronous access cost the number of servers that are contacted during an operation. In a sense, SBQ has already optimized its use of messages by using asymmetric quorums. As a result, the asynchronous cost cannot be optimized further. Triantafillou and Taylor [30] have extended work in quorums under a fail stop assumption by reasoning about the location of the replicas. They present results which provide similar availability to quorum systems but with improved latency. Extending these results to Byzantine environments remains future work. Phalanx [20] ....

P. Triantafillou and D. J. Taylor. The location-based paradigm for replication: Achieving efficiency and availability in distributed systems. In IEEE Transactions on Software Engineering, 21/1, pages 1--18, January 1995.

....of a quorum system is the asynchronous access cost the number of servers that are contacted during an operation. In a sense, SBQ has already optimized its use of messages by using asymmetric quorums. As a result, the asynchronous cost cannot be optimized further. Triantafillou and Taylor [30] have extended work in quorums under a fail stop assumption by reasoning about the location of the replicas. They present results which provide similar availability to quorum systems but with improved latency. Extending these results to Byzantine environments remains future work. Phalanx [20] ....

P. Triantafillou and D. J. Taylor. The location-based paradigm for replication: Achieving efficiency and availability in distributed systems. In IEEE Transactions on Software Engineering, 21/1, pages 1--18, January 1995.

....channels. In this context it is possible to require fewer servers (f 1 for self verifying data, 2f 1 otherwise) He uses symmetric quorums. Our work shows an alternative asynchronous algorithm that can efficiently utilize additional servers to avoid slow reads. Triantafillou and Taylor [38] have extended work in quorums under a fail stop assumption by reasoning about the location of the replicas. They present results which provide similar availability to quorum systems but with improved latency. Extending these results to Byzantine environments remains future work. Phalanx [25] ....

P. Triantafillou and D. J. Taylor. The location-based paradigm for replication: Achieving efficiency and availability in distributed systems. In IEEE Transactions on Software Engineering, 21/1, pages 1--18, January 1995.

....tolerance, and enhanced performance in a distributed system. programs [Gray and Reuter 1993, Baentsch et al. 1996, Duan 1996] However, although considerable research efforts have been directed towards the design of replication control protocols, replication is still viewed as a necessary evil [Triantafillou and Taylor 1995]. Most of the existing replication control protocols are either inefficient or too complicated to be implemented [Ceri et al. 1991, Chen and Pu 1992, Helal et al. 1996] This paper is structured as follows. In Section 2, we describe the background and the architecture of our Web based sales ....

[Triantafillou and Taylor 19951 P. Triantafillou and D. J. Taylor. The location-based paradigm for replication: Achieving efficiency and availability in distributed systems, IEEE Transactions on Software Engineering, 21(1):1--l& January 1995.

....[3] The second approach provides a faulttolerant computing toolkit or a model that can be used together with general programming languages and standard operating systems. Typical examples of this approach are the ISIS toolkit [4] the ARGUS system [5] the location based replication paradigm [6], the fulfillment transactions approach [7] and the RPC transaction management system [8] This paper follows the second approach. Remote Procedure Call (RPC) is perhaps the most popular model used in today s distributed software development and has become a de facto standard for distributed ....

....[12] Replication is the key to providing high availability, fault tolerance, and enhanced performance in a distributed system. However, although considerable research effort have been directed towards the design of replication control protocols, replication is still viewed as a necessary evil [6]. Reference [13] gives a comprehensive overview of replication techniques and annotated bibliographies of selected literature on replication techniques and example systems. Transaction management is a well established concept in database system research. A transaction is deThe Computer Journal, ....

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P. Triantafillou and D. J. Taylor. The locationbased paradigm for replication: Achieving efficiency and availability in distributed systems. IEEE Transactions on Software Engineering, 21(1):1--18, January 1995.

.... data management concentrate mostly on replica data algorithms developments, mostly using availability as the comparison metric and mostly considering only site failures [1, 6, 7, 11] More recently, some researches begin to address the performance issue of replica control protocols, notably in [9, 10]. Both site and link failures are considered for dynamic voting under various repairman models in [2] No research yet has been done to address the applicability of replica control algorithms for applications subject to a deadline or deadline distribution constraint. The problem is interesting ....

P. Triantafillou and D.J. Taylor, "The location-based paradigm for replication: Achieving efficiency and availability in distributed systems," IEEE Trans. Software Engineering, Vol. 21, No. 1, Jan. 1995, pp. 1-18.

....1996] Replication is the key to providing high availability, fault tolerance, and enhanced performance in a distributed system. However, although considerable research efforts have been directed towards the design of replication control protocols, replication is still viewed as a necessary evil [Triantafillou and Taylor 1995]. Most of the existing replication control protocols are either inefficient or too complicated to be implemented [Ceri et al. 1991, Chen and Pu 1992, Helal et al. 1996] Transaction management is a well established concept in database system research. A transaction is defined as a sequence of ....

P. Triantafillou and D. J. Taylor. The location-based paradigm for replication: Achieving efficiency and availability in distributed systems, IEEE Transactions on Software Engineering, 21(1):1--18, January 1995.

....then having the server send the updates to the others, the client multicasts the updates to all servers in a single operation. 2R ELATED WORK Several approaches to replication have already been proposed. The approaches differ for transaction based traditional distributed database systems, 21] [22], 23] 25] than those for multidatabase systems [24]and those for distributed file systems [9] 13] 6] In this section we present a brief overview of some recently developed well known replicated file systems. 2.1 Echo Echo is a primary site protocol [11] 7] 12] One of the servers ....

P. Triantafillou and D.J. Taylor, "The Location-Based Paradigm for Replication: Achieving Efficiency and Availability in Distributed Systems," IEEE Trans. Software Eng., vol. 21, no. 1, pp. 1--8, Jan. 1995.

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Triantafillou, P. and Taylor, D. J. (1995) The locationbased paradigm for replication: Achieving efficiency and availability in distributed systems. IEEE Trans. Softw. Eng., 21, 1--18.

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P. Triantafillou and D.J. Taylor, "The location-based paradigm for replication: Achieving efficiency and availability in distributed systems," IEEE Trans. Software Engineering, vol. 21, no. 1, pp. 1--18, 1995.

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P.Trianta#llou and D. J. Taylor. The location-based paradigm for replication: Achieving e#ciency and availability in distributed systems. IEEE Transactions on Software Engineering, 21#1#:1#18, January 1995.

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