International Business Machines Corporation

Michael Richard Artobello

Jack Chiu-Chiu Yuan

Yoshinobu Ueno

Steve T Kuo

Gerald Dean Hughes

Jack C Yuan

James Edward Zimmer

Andrew Daniel Tollerud

Kevin Richard Stewart

Getachew G Birbo

Joyce Yuan-Sheng Hsiao

Sandra L Sherrill

Stephen Paul Nathan

Paul Dennis Seyforth

An apparatus, system, and method are provided for automatically freeing locked server resources using a timeout value closely related to actual real-time message delays plus a delta value that can be adjusted at a plurality of levels. The levels include default, server, connection, and transaction. The apparatus includes a timer, a communication module, a computation module, and a lock handler. The timer determines a timeout value for communications from a client to a server. The communication module sends an output message to the client and locks a server resource in anticipation of an acknowledgement (ACK) message from the client. The computation module, which calculates an ACK timer, includes a difference between a send time and a current time. If no ACK message has been received from the client and the ACK timer exceeds the timeout value, the lock handler may free the locked server resource.

Apparatus, system, and method for automatically freeing a server resource locked awaiting a failed acknowledgement from a client

An apparatus, system, and method are provided for sharing a cached security profile in a database environment. The apparatus, system, and method include a cache module for caching a security profile accessible to primary tasks and secondary tasks. An identification module is provided that distinguishes between primary tasks authorized to refresh the security profile and secondary tasks. A refresh module cooperates with the cache module and identification module to selectively refresh the security profile in response to a refresh request and expiration of the security profile such that an old version of the security profile is retained for use by secondary tasks until an execution window closes.

Apparatus, system, and method for sharing a cached security profile in a database environment

A master dynamic aging value associated with the client is calculated responsive to an operator command to perform the global refresh. When receiving a request from a user associated with the client, a sub-dynamic aging value associated with a cached user security profile for the user is compared to the master dynamic aging value. If the sub-dynamic aging value is not equal to the master dynamic aging value, then the cached user security profile is refreshed.

Method, computer program product, and system for global refresh of cached user security profiles

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Concord, CA, United States of America

Michael Richard Artobello