Concurrency Control and Recovery Management for Open e-Business Transactions

Concurrency control mechanisms such as turn-taking, locking, serialization, transactional locking mechanism, and operational transformation try to provide data consistency when concurrent activities are permitted in a reactive system. Locks are typically used in transactional models for assurance of data consistency and integrity in a concurrent environment. In addition, recovery management is used to preserve atomicity and durability in transaction models. Unfortunately, conventional lock mechanisms severely (and intentionally) limit concurrency in a transactional environment. Such lock mechanisms also limit recovery capabilities. Finally, existing recovery mechanisms themselves afford a considerable overhead to concurrency. This paper describes a new transaction model that supports release of early results inside and outside of a transaction, decreasing the severe limitations of conventional lock mechanisms, yet still warranties consistency and recoverability of released resources (r...

• Type: Conference
• Year: 2007
• Where: WOTUG
• Authors: Amir R. Razavi, Sotiris Moschoyiannis, Paul J. Krause
• Keywords: Concurrency Control, Conventional Lock Mechanisms, Lock Mechanism, WOTUG 2007, WOTUG 2008