The Versioning System Balancing Data Amount and Access Frequency on Distributed Storage System

In this paper, a method of handling both access frequency skew and data amount skew on a distributed parallel storage system under version management system is discussed. We assume the version management system keeps the latest version of file and a number of differential information sets to access previous versions. Since the access frequency for an aged version is tend to be lower than that for the latest version, we control the access frequency distribution by the placement of the latest versions, while the data amount distribution is managed by the placement of the differential information whose size is enough small to adjust the subtle difference of data amount. We propose a distributed directory structure and algorithm for placement, and evaluate its effect on the access frequency and data amount distribution.

• Type: Conference
• Year: 2005
• Where: ICDE
• Authors: Mana Nakano, Dai Kobayashi, Akitsugu Watanabe, Toshihiro Uehara, Ryo Taguchi, Haruo Yokota
• Keywords: Access Frequency, Access Frequency Skew, Database, ICDE 2005, Latest Versions