Group Communication System (GCS) is an important building block for reliable, fault-tolerant distributed applications. Due to highly variable and unpredictable latency in WANs, GCS needs to cope with frequent membersh...
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Group Communication System (GCS) is an important building block for reliable, fault-tolerant distributed applications. Due to highly variable and unpredictable latency in WANs, GCS needs to cope with frequent membership changes. It results in diminishing the scalability of GCS. In this paper we propose a new scheme that improves the scalability of group membership service for WANs by exploiting dedicated membership servers configured into multiple layers and reaching global agreement on the view through layered servers. It improves the scalability of a process group of N member processes from O(N/sup 2/) to O(N/sup 3/) with three layers, where N is the number of processes in the group. computer simulation verifies that the proposed scheme requires much smaller number of message exchanges for reaching an agreement on a next view and does that much quicker. In addition, the proposed scheme prevents applications from being blocked until reaching the final view agreement if the applications permit temporary inconsistency.
The implementation of a distributed digital logic simulation algorithm on a network of workstations is presented. The simulation of digital circuits is done using a demand driven approach. The simulation is performed ...
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The implementation of a distributed digital logic simulation algorithm on a network of workstations is presented. The simulation of digital circuits is done using a demand driven approach. The simulation is performed ...
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The implementation of a distributed digital logic simulation algorithm on a network of workstations is presented. The simulation of digital circuits is done using a demand driven approach. The simulation is performed on a network of workstations using the Parallel Virtual Machine (PVM) software. The use of the PVM as a platform for parallel and distributed applications is assessed in the light of the test results. The feasibility of running parallel logical simulation algorithms on such platform is considered.< >
In the paper, dataflow architecture with multiple tokens is proposed. By supporting nodes with several inputs and more than two successors, with by-reference data access, the redundant synchronization is eliminated, w...
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The authors introduce encryption-free message authentication based entirely on the use of one-way hash functions. It is shown that fast one-way hash functions such as MD4 can be used as a foundation for some relativel...
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The authors introduce encryption-free message authentication based entirely on the use of one-way hash functions. It is shown that fast one-way hash functions such as MD4 can be used as a foundation for some relatively novel implementations of security services. In particular, simple and inexpensive secret prefix and secret suffix methods provide protection against message substitution attacks when used in conjunction with a strong one-way hash function (which itself protects against message modification).< >
This book constitutes the refereed proceedings of the 4th International Workshop on Self-Organizing systems, IWSOS 2009, held in Zurich, Switzerland, in December 2009. The 14 revised full papers and 13 revised short p...
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ISBN:
(数字)9783642108655
ISBN:
(纸本)9783642108648
This book constitutes the refereed proceedings of the 4th International Workshop on Self-Organizing systems, IWSOS 2009, held in Zurich, Switzerland, in December 2009. The 14 revised full papers and 13 revised short papers presented were carefully selected from the 34 full and 27 short paper submissions. The papers are organized in topical sections on ad hoc and sensor networks; services, storage, and internet routing; peer-to-peer systems; theory and general approaches; overlay networks; peer-to-peer systems and internet routing; wireless networks; and network topics.
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