An efficient locking model for concurrency control in OODBS

• Main Authors: G Arumugam, M Thangaraj
• Format: Article
• Language: English
• Published: Ubiquity Press 2006-01-01
• Series: Data Science Journal
• Subjects: Concurrency; lock modes; hash table; B+ tree; signatures; object
• Online Access: http://datascience.codata.org/articles/365

When several transactions execute concurrently in a database, the isolation property may no longer be preserved. It is necessary for the system to control the interaction among the concurrent transactions. This paper presents a new locking model for concurrency control in object oriented database systems. This model is motivated by a desire to provide high concurrency and low locking overheads in accessing objects. The proposed model consists of a rich set of lock modes, hash table, lock-based signatures and B+ trees. The performance study result shows that the proposed model performs well for all possible operations on objects.