%T Concurrency Control and Recovery Management for Open e\-Business Transactions
%A Amir R. Razavi, Sotiris K. Moschoyiannis, Paul J. Krause
%E Alistair A. McEwan, Steve Schneider, Wilson Ifill, Peter H. Welch
%B Communicating Process Architectures 2007
%X 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
(results). This is achieved through use of a more flexible
locking mechanism and by using two types of consistency
graph. This provides an integrated solution for transaction
management, recovery management and concurrency control. We
argue that these are necessary features for management of
long\-term transactions within "digital
ecosystems" of small to medium enterprises.
If you have any comments on this database, including inaccuracies, requests to remove or add information, or suggestions for improvement, the WoTUG web team are happy to hear of them. We will do our best to resolve problems to everyone's satisfaction.
Copyright for the papers presented in this database normally resides with the authors; please contact them directly for more information. Addresses are normally presented in the full paper.
Pages © WoTUG, or the indicated author. All Rights Reserved.
Comments on these web pages should be addressed to: www at wotug.org