Real-Time Concurrency Control Protocol Based on Accessing Temporal Data
نویسندگان
چکیده
منابع مشابه
Real-Time Concurrency Control Protocol Based on Accessing Temporal Data
Concurrency control is one of the main issues in the studies of real-time database systems. On the one hand, it is related closely to active real-time database and real-time application. Concurrency control algorithm seriously affect the performance of the system in real-time, may cause unpredictable consequences. On the other hand, updating data in active real-time database may trigger a new t...
متن کاملSimilarity - Based Real - Time Concurrency Control Protocols
approved Walter G. Rudd Serializability is unnecessarily strict for real-time systems because most transactions in such systems occur periodically and changes among data values over a few consecutive periods are often insignificant. Hence, data values produced within a short interval can be treated as if they are "similar" and interchangeable. This notion of similarity allows higher concurrency...
متن کاملObject-Based Semantic Real-Time Concurrency Control
This paper presents a technique that is capable of supporting two major requirements for concurrency control in real-time databases: data temporal consistency, and data logical consistency, as well as tradeo s between these requirements. Our technique is based upon a real-time object-oriented database model in which each object has its own unique compatibility function that expresses the condit...
متن کاملConcurrency Control Protocol for Nested Transactions in Real-Time Databases
In this paper we consider real-time concurrency control for the nested transaction model. We analyze problems that have pure optimistic and pessimistic approaches. As the solution we propose a hybrid concurrency control algorithm which acts as an optimistic for transactions from different transaction trees and as pessimistic inside a single transaction tree.
متن کاملA Secure Concurrency Control Protocol for Real-Time Databases
Database systems for real-time applications must satisfy timing constraints associated with transactions, in addition to maintaining data consistency. Multilevel security requirements introduce a new dimension to transaction processing in real-time database systems. In this paper, we propose a novel concurrency control protocol that can meet the real-time, security, and serializability conditio...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Software
سال: 2007
ISSN: 1000-9825
DOI: 10.1360/jos181468