Abstract: Proposed are a content management apparatus and method, and a storage medium capable of improving the utilization efficiency of a cache in a content management system. In a content management apparatus which manages one or more contents to be delivered in which data is stored in a storage apparatus and, in accordance with a delivery request from a client, delivers the delivery-requested content to the requesting client, a viewing history of the content of each user using each of the clients and a content characteristic of each content which is extracted from information associated with the content are respectively managed, and the content in which data is to be stored in the cache and the content in which data is to be purged from the cache are determined based on the user characteristic of each user and the content characteristic of each content.

Abstract: An information processing system, a data update method and a data update program are disclosed. In a data base system of master-slave configuration, the update result can be accessed also on slave side with the access request immediately after the particular update. The data base system DBS includes a master DB computer and at least a slave DB computer. The slave DB computer judges from the count on an update counter table whether the update log received from the master DB computer is to be reflected in a duplicate data base or not. Thus, the lost update problem is solved while at the same time realizing a high-speed process.

Abstract: An information processing system, a data update method and a data update program are disclosed. In a data base system of master-slave configuration, the update result can be accessed also on slave side with the access request immediately after the particular update. The data base system DBS includes a master DB computer and at least a slave DB computer. The slave DB computer judges from the count on an update counter table whether the update log received from the master DB computer is to be reflected in a duplicate data base or not. Thus, the lost update problem is solved while at the same time realizing a high-speed process.