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In private clouds that host many enterprise applications, scalable security management has become an important issue. In our previous work, we had developed integrated access control manager that manages access permissions to a large number of various resources using resource information provided by a resource information service. To improve performance of the resource information service, we introduced a resource information cache and a proactive cache update control method. To avoid overload of the management server due to updating cached information, the proposed method selects a part of cached information by content priority as an update target. In this work, we evaluated the query response time of the resource information service in a third-party enterprise system using the search queries issued during system operations by an administrator. The proposed method reduced average query response time by 35% compared to a conventional reactive update control method.
Date of Conference: 5-10 July 2010