JPH11203179A - Transaction distribution system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the performance from degrading in the reference/updating processing of take-over information area by distributing a server for executing a transaction processing by a job processing request unit composed of plural transaction processing requests. SOLUTION: In a client UAP, job processing start is instructed at the time of job processing request start. A transaction distribution mechanism 3 which receives the job processing start instruction decides the server for performing the transaction processing request based on the load information or the like of the respective servers. Thereafter, when the transaction processing is requested from the client, in the transaction distribution mechanism 3, the transaction processing is requested to the server decided in advance. At the time of ending a job processing, job processing end is instructed in the client UAP and the distribution information 4 of the transaction of the transaction distribution mechanism is reset. In the server UAP, only the management and reference/ updating of the take-over information area 5 inside the same server are performed from the job processing request start to the end.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transaction distribution method in a distributed online system, and more particularly to a transaction distribution method for each business processing request.

[0002]

2. Description of the Related Art In a conventional distributed online system, there are a transaction distribution system when establishing a communication path and a transaction distribution request distribution system.

[0003] The distribution method at the time of establishing a communication path means that when establishing a communication path between a client and a server, a server that establishes a communication path with the client is determined from load information of the server and the like. Is a method in which a transaction processing request from a client is processed by the same server until the communication path is released.

[0004] The distribution method at the time of a transaction processing request is a method of determining a server to execute a transaction processing based on load information of the server at the time of a transaction processing request from a client. The transaction is distributed every time a transaction processing request is made. Since the server can be determined, the transaction can be distributed according to the load condition.

[0005]

Generally, business processing executed in an online system is realized by a plurality of transaction processing requests from a client to a server. Therefore, DB search results and server U
Information such as the processing status of the AP is stored in a takeover information area between the servers UPA in the server, and the takeover information is referred to at the time of subsequent transaction processing, thereby reducing the number of DB searches and improving the performance at the time of executing the transaction processing. Improved methods are widely used.

FIG. 1 is a diagram showing a problem in a case where a distribution method at the time of a transaction processing request is applied in a distributed online system. As shown in FIG. 1, in the distributed online system, when the takeover information area between the server UAPs is used, the server that performs the transaction processing is different each time a transaction processing request is issued from the client. Information communication between servers is required to perform the area reference / update processing, which is a factor that degrades the performance when executing transaction processing. In addition, management of the takeover information area and reference / update processing in the server UAP are complicated.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, there is provided a transaction distribution method for each business processing request from a client in a distributed online system.

[0008] In the transaction distribution method for each business processing request, the client UAP or the server UAP can instruct the transaction distribution mechanism at an arbitrary timing to start and end a business processing request.

[0009]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 2 shows a transaction distribution method for each business processing request by the client UAP instruction method.

The client UAP issues a business process start instruction when starting a business process request. The transaction distribution mechanism (3) that has received the business process start instruction from the client determines the server that issues the transaction process request based on the load information of each server. Thereafter, when there is a transaction processing request from the client, the transaction distribution mechanism issues a transaction processing request to the server determined earlier. At the end of the business process, the client UAP issues a business process end instruction,
Reset the transaction distribution information (4) of the transaction distribution mechanism. The server UAP only needs to manage and refer to / update the handover information area (5) in the same server from the start to the end of the business process request.

[0012]

According to the present invention, in a distributed online system, transaction processing requests can be distributed to servers in units of business processing. Therefore, when a takeover information area is used between server UAPs, performance degradation in reference / update processing of the takeover information area is prevented. Thus, the response of the business process can be improved. Further, the management and reference / update processing of the handover information area in the server UAP are facilitated.

[Brief description of the drawings]

FIG. 1 Problems of the conventional method

FIG. 2 is a transaction distribution method for each business processing request.

[Explanation of symbols]

1. Transaction distribution mechanism 2. Server UAP
Transfer information area between 3, 3 ... transaction distribution mechanism, 4 ... transaction distribution information, 5 ... Transfer information area between server UAPs.

Claims (1)

[Claims] A client for executing a transaction processing request, a plurality of servers for executing the transaction processing,
In a distributed online system consisting of a transaction distribution mechanism that distributes transaction processing requests from clients to servers, the server that executes transaction processing is not a single transaction processing request unit but a business processing request unit composed of multiple transaction processing requests. A transaction distribution method characterized by distribution.