Database management system based on client/server architecture and storage medium storing a program therefor

Abstract

Disclosed is a database management control system based on the client/server architecture including a client process operating on a client machine and a server process operating on a server machine, which prevents resources from remaining allocated without being properly relinquished. When a client makes a request for connection to the server, a starting order identifier notifying device notifies the server process of a starting order identifier indicating the starting order of an operating system on which the client process operates. An executing entity search device of the server process searches for executing entities under control of an executing entity control device, which are correlated to the same network address as a network address of the client machine on which the client process operates. From the executing entities searched out, a starting order identifier comparing device selects executing entities correlated to a starting order identifier older than the starting order identifier notified, and a recovery device terminates these executing entities and recovers or relinquishes resources allocated thereto. This makes it possible to recover resources remaining uselessly unavailable, when the client machine, the power of which was once turned off, is started again and the client process thereof makes a request for connection to the server process.