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Concurrency control protocol on distributed multimedia objects
18th International Conference on Advanced Information Networking and Applications, 2004. AINA 2004., 2004Multimedia objects distributed in networks are concurrently manipulated by multiple transactions in applications like co-authoring systems. Not only state but also quality of service (QoS) of object is changed through methods. We define new types of conflicting and exclusive relations on methods to serialize transactions and to realize exclusive ...
Makoto Takizawa +2 more
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An optimistic locking technique for concurrency control in distributed databases
IEEE Transactions on Software Engineering, 1991A method called optimistic method with dummy locks (ODL) is suggested for concurrency control in distributed databases. It is shown that by using long-term dummy locks, the need for the information about the write sets of validated transactions is eliminated and, during the validation test, only the related sites are checked.
Halıcı, Uğur, DOGAC, A
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Moderate Concurrency Control in Distributed Object Systems
2004Objects are concurrently manipulated by multiple transactions in object-based systems. We newly introduce availability and exclusion types of conflicting relations among methods. Then, we define a partially ordered relation on lock modes showing which modes are stronger than others. We newly propose a moderate locking (ML) protocol.
Tomoya Enokido +2 more
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System Level Concurrency Control for Distributed Database Systems
ACM Transactions on Database Systems, 1978A distributed database system is one in which the database is spread among several sites and application programs “move” from site to site to access and update the data they need. The concurrency control is that portion of the system that responds to the read and write requests of the application programs.
P. M. Lewis +2 more
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Resilient Concurrency Control in Distributed Database Systems
IEEE Transactions on Reliability, 1983This paper presents the resiliency features of the optimistic approach to concurrency control and demonstrates how it lends itself to a design of a reliable distributed database system. The validation of concurrency control, integrity control, and atomicity control has been integrated.
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Distributed database concurrency controls using before-values
Proceedings of the 1981 ACM SIGMOD international conference on Management of data - SIGMOD '81, 1981Associated with the write of a database entity is both the "before" or old value, and the "after" or new value. Concurrency can be increased by allowing other transactions to read the before values of a given transaction. The ramifications of allowing this, particularly on a distributed system in which limited communications is desirable, are ...
Richard Edwin Stearns +1 more
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Correctness of concurrency control and implications in distributed databases
COMPSAC 79. Proceedings. Computer Software and The IEEE Computer Society's Third International Applications Conference, 1979., 2005In this paper we report our preliminary re sults in the correctness of concurrency control and we outline a new approach to concurrency control. First, we derive necessary and sufficient condition for the serializability of concurrent execution of transactions, regardless of the underlying mech anism (i. e.
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Hash Based Incremental Optimistic Concurrency Control Algorithm in Distributed Databases
Intelligence and Security Informatics, 2014D. Ramesh +3 more
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High‐coverage metamorphic testing of concurrency support in C compilers
Software Testing Verification and Reliability, 2022Matt Windsor +2 more
exaly
Distributed Concurrency Control in Real-time Cooperative Editing Systems
Asian Computing Science Conference, 1996Chengzheng Sun +3 more
semanticscholar +1 more source