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QDFS: A quality-aware distributed file storage service based on HDFS

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4 Author(s)
Song Guang-hua ; Center for Eng. & Sci. Comput., Zhejiang Univ., Hangzhou, China ; Chuai Jun-na ; Yang Bo-wei ; Zheng Yao

On the basis of the Hadoop distributed file system (HDFS), this paper presents the design and implementation of QDFS, a distributed file storage service system that employs a backup policy based on recovery volumes and a quality-aware data distribution strategy. The experimental results show that QDFS increases the storage utilization ratio and improves the storage performance by being aware of the quality of service of the DataNodes. The improvements of QDFS compared with HDFS make the Hadoop distributed computing model more suitable to unstable wide area network environments.

Published in:

Computer Science and Automation Engineering (CSAE), 2011 IEEE International Conference on  (Volume:2 )

Date of Conference:

10-12 June 2011