Fujitsu Corporation

Koichi Shiga

Hitoshi Suzuki

Tsuneichi Yoshizawa

Toshihisa Eto

Yukiyoshi Yanase

An application testing method is used to test a first application which is written in a language which makes reference to and updates a database. The application testing method includes the steps of (a) giving test data to the first application by a capacity of a second application which issues a request, and (b) invalidating updating of the database made by the first application by a communication process which links to a transaction monitor or a database management system.

Method of testing an application on a server which accesses a database

An application and a debugger make a request for database manipulation to a database server via a pseudo-database server, so that the debugger is permitted to make access to a database within the same transaction as the application. When requested by the application to terminate a transaction, the pseudo-database server requests the database server to abort the transaction. According to settings in a debug environment file, the pseudo-database server logs messages transmitted and received by the application during the execution of a transaction.

Method and apparatus for testing an application in a client/server

An inter-system serialization control system comprising an external storage unit commonly connected to computer systems for storing, when a request for accessing a logical processing unit in the shared resources is generated from one of the computer systems, serialization management information corresponding to the logical processing unit. The logical processing unit is smaller than a volume of the shared resources. A serialization control unit is provided in each computer system, for reading, in response to a request for accessing a logical processing unit of the shared resources, the corresponding logical processing unit in the serialization management information from the external storage unit and for accessing the corresponding logical processing unit in the shared resources under serialization control based on the read serialization management information. Whereby the serialization control is effected with a logical processing unit smaller than a volume and without inter-communicating among the computer systems so that the overhead for each CPU is reduced.

Table-based inter-system serialization control system

A log file control system is used in a complex system which includes a plurality of computer systems connected for communications. Additionally, the complex system includes a data base which is shared among the computer systems and a high-speed storage unit which is also shared among the computer systems. Further, a saving unit is present in each of the computer systems for saving log data, outputted by a transaction processed in the computer system, in a backout file for the computer system. A serializing unit in each of the computer systems exclusively obtains a log data buffer of the complex system, according to an inter-system exclusive control table, and transmits the serialized log data to the log data buffer. When the log data buffer issues a request for transmitting the data to a log file, an accumulating unit in the computer system transmits the data according to the request from the log data buffer. The log data is requested to be transmitted to the log file asynchronously with the transaction processes.

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Kawasaki, Japan

Koichi Shiga