Scheduling Transactions in Replicated Distributed Software Transactional Memory

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Provided by: Virginia Systems
Topic: Storage
Format: PDF
Distributed software Transactional Memory (DTM) is an emerging, alternative concurrency control model for distributed systems that promises to alleviate the difficulties of lock-based distributed synchronization. Object replication can improve concurrency and achieve fault-tolerance in DTM, but may incur high communication overhead (in metric-space networks) to ensure one-copy serializability. The authors consider metric-space networks and develop a cluster-based object replication model for DTM. In this model, object replicas are distributed to clusters of nodes, where clusters are determined based on distance between nodes, to maximize locality and fault-tolerance and to minimize communication overhead.
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