Synchronization mechanism for providing data consistency

Data consistency protocol for supporting client coherency and data integrity imposes great impacts on the performance of distributed file systems. This paper proposes a new form of data consistency protocol which aims to enhance I/O performance of various applications. Different from the past works, multiple acquisition functions are adopted to establish a desirable lock schedule, according to the application-sensitive hint. Also, this paper presents how the basic idea of our scheme could be adopted to maintain replica consistency for the geographically distributed data. A series of measurements were conducted to verify our scheme.