- Turkish Journal of Electrical Engineering and Computer Science
- Vol: 26 Issue: 2
- Concurrency control algorithms for deduplicated cloud storage
Concurrency control algorithms for deduplicated cloud storage
Authors : Prabavathy Balasundaram, Chitra Babu
Pages : 936-947
View : 7 | Download : 4
Publication Date : 9999-12-31
Article Type : Makaleler
Abstract :Deduplication of data is essential to effectively use cloud storage. As the metadata in deduplicated cloud storage are shared across multiple users, concurrent updates may result in inconsistencies. A coarse-grained locking strategy that has been proposed earlier to overcome this difficulty is not suited for inline deduplication owing to poor performance. In the present work, a fine-grained locking strategy that overcomes this shortcoming is proposed. A metadata structure along with a set of concurrent control mechanisms to accomplish this is presented. This strategy is shown to improve the throughput by as much as 60% with only marginal lock overhead.Keywords : Cloud storage, data deduplication, concurrency issues, locking