American Journal of Applied Sciences

Preserving Data Consistency through Neighbor Replication on Grid Daemon

A. Noraziah, M. Mat Deris, N.A. Ahmed, M.Y.M. Saman, R. Norhayati and Zeyad M. Alfawaer

DOI : 10.3844/ajassp.2007.751.758

American Journal of Applied Sciences

Volume 4, Issue 10

Pages 751-758

Abstract

In modern distributed systems, replication receives particular attention for providing high data availability, fault tolerance and enhance the performance of the system. It is an important mechanism because it enables organizations to provide users with access to current data where and when they need it. However, this way of data organization introduces low data consistency and data coherency as more than one replicated copies need to be updated. Expensive synchronization mechanisms are needed to maintain the consistency and integrity of data among replicas when changes are made by the transactions. In this paper, we present Neighbor Replication on Grid (NRG) daemon in order to manage replication and transactions in distributed system. NRG Transaction Model has been implemented in order to preserve the data consistency and availability. Based on experiment and result, it shows that NRG daemon guarantees consistency and obey serializability through the synchronization approach.

Copyright

© 2007 A. Noraziah, M. Mat Deris, N.A. Ahmed, M.Y.M. Saman, R. Norhayati and Zeyad M. Alfawaer. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.