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Information Technology Journal
Year: 2013  |  Volume: 12  |  Issue: 1  |  Page No.: 71 - 79

FBSA: A Flash Memory-based Scheduling Algorithm for Optimistic Replication

W. Li, G. Wang, X. Wang and S. Li    

Abstract: The scheduling algorithm for optimistic replication is important, because it has an extreme effect on replication performance. However, most of the scheduling algorithms are designed for a conventional hard disk device with mechanical disk arms. It may be inefficient when the flash memory which possesses both a higher read/write performance and random access rate is equipped. This study proposed a new flash memory-based scheduling algorithm for optimistic replication: FBSA. It parallelized the write requests on the slave node according to the semantic dependency, thus, full drove the flash memory and improved replication performance. The FBSA was fully implemented under a popular open-source DBMS-MySQL and was proved to show dramatic performance improvement compared with the original scheduling algorithm based on the same hardware and software configurations.

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