On Open Nesting in Distributed Transactional Memory

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Provided by: Virginia Systems
Topic: Storage
Format: PDF
Distributed Transactional Memory (DTM) is a recent but promising model for programming distributed systems. It aims to present programmers with a simple to use distributed concurrency control abstraction (transactions), while maintaining performance and scalability similar to distributed fine-grained locks. Any complications usually associated with such locks (e.g., distributed deadlocks) are avoided. Building upon the previously proposed Transactional Forwarding Algorithm (TFA), the authors add support for open nested transactions. They discuss the mechanisms and performance implications of such nesting, and identify the cases where using open nesting is warranted and the relevant parameters for such a decision.
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