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RTAS
1999
IEEE

MIRROR: A State-Conscious Concurrency Control Protocol for Replicated Real-Time Databases

9 years 17 days ago
MIRROR: A State-Conscious Concurrency Control Protocol for Replicated Real-Time Databases
Data replication can help database systems meet the stringent temporal constraints of current time-critical applications, especially Internet-based services. A prerequisite, however, is the development of high-performance concurrency control mechanisms. We present here a new CC protocol called MIRROR (Managing Isolation in Replicated Real-time Object Repositories), specifically designed for firm-deadline applications operating on replicated real-time databases. MIRROR augments the optimistic two-phase locking (O2PL) algorithm developed for non-real-time databases with a novel and easily implementable state-based conflict resolution mechanism to finetune the real-time performance. A simulation-based study of MIRROR's performance against the real-time versions of a representative set of classical protocols shows that (a) the relative performance characteristics of replica concurrency control algorithms in the real-time environment could be significantly different from their perform...
Ming Xiong, Krithi Ramamritham, Jayant R. Haritsa,
Added 04 Aug 2010
Updated 04 Aug 2010
Type Conference
Year 1999
Where RTAS
Authors Ming Xiong, Krithi Ramamritham, Jayant R. Haritsa, John A. Stankovic
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