Results 1 - 10 of 8,043

On optimistic methods for concurrency control

by H. T. Kung, John T. Robinson - ACM Transactions on Database Systems , 1981
"... Most current approaches to concurrency control in database systems rely on locking of data objects as a control mechanism. In this paper, two families of nonlocking concurrency controls are presented. The methods used are “optimistic ” in the sense that they rely mainly on transaction backup as a co ..."
Abstract - Cited by 546 (1 self) - Add to MetaCart
Most current approaches to concurrency control in database systems rely on locking of data objects as a control mechanism. In this paper, two families of nonlocking concurrency controls are presented. The methods used are “optimistic ” in the sense that they rely mainly on transaction backup as a

Concurrency Control in Groupware Systems

by C. A. Ellis, S. J. Gibbs - ACM SIGMOD Record , 1989
"... Abstract. Groupware systems are computer-based systems that support two or more users engaged in a common task, and that provide an interface to a shared environment. These systems frequently require fine-granularity sharing of data and fast response times. This paper distinguishes real-time groupwa ..."
Abstract - Cited by 373 (0 self) - Add to MetaCart
-time groupware systems from other multi-user systems and dis-cusses their concurrency control requirements. An algorithm for concurrency control in real-time groupware systems is then presented. The advantages of this algorithm are its sim-plicity of use and its responsiveness: users can operate di

Concurrency Control in Distributed Database Systems

by Philip A. Bernstein, Nathan Goodman - ACM Computing Surveys , 1981
"... In this paper we survey, consolidate, and present the state of the art in distributed database concurrency control. The heart of our analysts is a decomposition of the concurrency control problem into two major subproblems: read-write and write-write synchronization. We describe a series of synchrom ..."
Abstract - Cited by 295 (5 self) - Add to MetaCart
In this paper we survey, consolidate, and present the state of the art in distributed database concurrency control. The heart of our analysts is a decomposition of the concurrency control problem into two major subproblems: read-write and write-write synchronization. We describe a series

Concurrency control in advanced database applications

by Naser S. Barghouti, Gail, E. Kaiser - ACM Computing Surveys , 1991
"... Concurrency control has been thoroughly studied in the context of traditional database applications such as banking and airline reservations systems. There are relatively few studies, however, that address the concurrency control issues of advanced database applications such as CAD/CAM and software ..."
Abstract - Cited by 181 (15 self) - Add to MetaCart
Concurrency control has been thoroughly studied in the context of traditional database applications such as banking and airline reservations systems. There are relatively few studies, however, that address the concurrency control issues of advanced database applications such as CAD/CAM and software

A majority consensus approach to concurrency control for multiple copy databases

by Robert H. Thomas, Bolt Beranek - ACM Transactions on Database Systems , 1979
"... A “majority consensus ” algorithm which represents a new solution to the update synchronization problem for multiple copy databases is presented. The algorithm embodies distributed control and can function effectively in the presence of communication and database site outages. The correctness of the ..."
Abstract - Cited by 376 (0 self) - Add to MetaCart
A “majority consensus ” algorithm which represents a new solution to the update synchronization problem for multiple copy databases is presented. The algorithm embodies distributed control and can function effectively in the presence of communication and database site outages. The correctness

The Concurrency Control Problem

by Philip A. Bernstein, Nathan Goodman
"... In this paper we survey, consolidate, and present the state of the art in distributed database concurrency control. The heart of our analysts is a decomposition of the concurrency control problem into two major subproblems: read-write and write-write synchronization. We describe a series of synchrom ..."
Abstract - Add to MetaCart
In this paper we survey, consolidate, and present the state of the art in distributed database concurrency control. The heart of our analysts is a decomposition of the concurrency control problem into two major subproblems: read-write and write-write synchronization. We describe a series

Concurrent Constraint Programming

by Vijay A. Saraswat, Martin Rinard , 1993
"... This paper presents a new and very rich class of (con-current) programming languages, based on the notion of comput.ing with parhal information, and the con-commitant notions of consistency and entailment. ’ In this framework, computation emerges from the inter-action of concurrently executing agent ..."
Abstract - Cited by 502 (16 self) - Add to MetaCart
-text of concurrency because of the use of constraints for communication and control, and in the context of AI because of the availability of simple yet powerful mechanisms for controlling inference, and the promise that very rich representational/programming languages, sharing the same set of abstract properties, may

Concurrency Control Performance Modeling: Alternatives and Implications

by Rakesh Agrawal, Michael J. Carey, Miron Livny - ACM Transactions on Database Systems , 1987
"... A number of recent studies have examined the performance of concurrency control algorithms for database management systems. The results reported to date, rather than being definitive, have tended to be contradictory. In this paper, rather than presenting “yet another algorithm performance study,” we ..."
Abstract - Cited by 181 (6 self) - Add to MetaCart
A number of recent studies have examined the performance of concurrency control algorithms for database management systems. The results reported to date, rather than being definitive, have tended to be contradictory. In this paper, rather than presenting “yet another algorithm performance study

Concurrency Control for Knowledge Bases

by Vinay K. Chaudhri, Vassos Hadzilacos, John Mylopoulos - In Proceedings of the Third International Conference on Knowledge Representation and Reasoning , 1992
"... As the demand for ever-larger knowledge bases grows, knowledge base management techniques assume paramount importance. In this paper we show that large, multi-user knowledge bases need concurrency control. We discuss known techniques from database concurrency control and explain their inadequa ..."
Abstract - Cited by 13 (7 self) - Add to MetaCart
As the demand for ever-larger knowledge bases grows, knowledge base management techniques assume paramount importance. In this paper we show that large, multi-user knowledge bases need concurrency control. We discuss known techniques from database concurrency control and explain

Advanced concurrency control in java

by Pascal Felber, Michael K. Reiter - Concurrency and Computation: Practice and Experience , 2002
"... Developing concurrent applications is not a trivial task. As programs grow larger and become more complex, advanced concurrency control mechanisms are needed to ensure that application consistency is not compromised. Managing mutual exclusion on a per-object basis is not sufficient to guarantee isol ..."
Abstract - Cited by 3 (0 self) - Add to MetaCart
Developing concurrent applications is not a trivial task. As programs grow larger and become more complex, advanced concurrency control mechanisms are needed to ensure that application consistency is not compromised. Managing mutual exclusion on a per-object basis is not sufficient to guarantee
Results 1 - 10 of 8,043