JPH05314070A - Message queue managing system - Google Patents

Abstract

PURPOSE:To reduce the load of a message queue by distributing job processing requests concerning the message queue used for inter-process communication in a transaction processing system. CONSTITUTION:At a host computer system 1, one message queue 14 is made correspondent to the unit of a job processing process class 13, the copy of a job processing process 131, 132 or 133 is generated and erased at a monitor process 16 by referring to a message queue managing table 17. Thus, the job processing requests are distributed, the load of the message queue is reduced, and the message queue being system resources is saved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transaction processing system, and more particularly to a terminal control process for controlling a business processing request from an input device and a processing result output to an output device, and a transaction processing request to a database management system. The present invention relates to a management method of a message queue used for interprocess communication performed with a business processing process.

[0002]

2. Description of the Related Art Conventionally, one message queue is prepared for one business processing process, a plurality of the same business processing processes exist, and a processing request for the same business processing process exceeds the same number of business processing processes. In this case, as a method of reducing the load on the message queue by distributing the processing requests, a management table for managing the correspondence between the message queue and the business processing process and the number of terminal control processes waiting for the business processing process is provided. The terminal control process refers to the management table and requests processing to business processes with a small number of processing waits, thereby realizing distribution of processing requests and reduction of load on the message queue.

[0003]

SUMMARY OF THE INVENTION In this conventional method,
Since one message queue, which is a system resource, is prepared for one business processing process, it is difficult to make the resources efficient in a transaction processing system having a large number of business processing process classes that bundle a plurality of same business processing processes. Met. Further, there is a problem that the number of business processing processes is limited because the number of resources allowed in the system is limited.

The present invention has been made in order to solve the above-mentioned problems. By associating one message queue with each business process class, the message queue which is the resource of the system can be saved and the resource can be saved. It is an object of the present invention to provide a message queue management method that enables efficiency.

[0005]

The message queue management system of the present invention uses a database and an input / output device that receives a business processing request and input information relating to the business processing request and outputs a result of the business processing request. A database management system that manages the functions required for selecting the appropriate business processing process from the business processing request input from the input device, transmits the input information from the input device, and outputs the processed result to the A business process class that has a plurality of terminal business processes that output to an output device and the same business process that performs business processes by issuing a transaction process request to the database management system in response to a request from the terminal process. In a transaction processing system comprising: It is used to perform inter-process communication between a process and a business processing process in the business processing process class, and a message queue existing for each business processing process class, the message queue, and the business processing process class. And management of the message queue management table for managing the operating status of the business processing process in the business processing class, management of the message queue management table, and monitoring for creating and deleting business processing processes in the business processing class And process.

[0006]

According to the above configuration, when a business processing request from the input / output device is input to the terminal control process, the terminal control process selects a business processing process class having a plurality of the same business processing processes and executes the business processing. A model in which the message queue that exists for each process class is obtained from the message queue management table, business process requests and input information for the obtained message queue can be received by each business process process in the business process class via the message queue. Sent out. The received business processing process makes a processing request to the database management system, and after the business processing is completed, the business processing process class returns the business processing request result to the terminal control process via the corresponding message queue.

On the other hand, the monitoring process manages the correspondence between the message queue and the business processing process class and the message queue management table that manages the operating status of the business processing process in the business processing process class so that the business processing can be performed from that state. Since the business processing process in the processing process class is generated or deleted, the business processing requests can be distributed and the load on the message queue can be reduced.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a message queue management system of the present invention.

In FIG. 1, this embodiment is provided with a host computer system 1, an input / output device 21, an input / output device 22, and
It is composed of the database 3.

Further, the host computer system 1 has a terminal control process 11 for controlling the input / output of the input / output device 21.
, A terminal control process 12 for controlling the input / output of the input / output device 22, a business processing process class 13, a terminal control process 11, or a message queue 14 as inter-process communication between the terminal control process 12 and the business processing process class 13. A database management system 15, a message queue management table 17 that manages message queue management information, and a monitoring process 16 that monitors the business process class 13 and manages the message queue management table 17.

The business process class 13 is a business process 131 which is the same business process.
And the business processing process 132 and the business processing process 13
3 is provided.

FIG. 2 is a diagram showing an example of the contents of the message queue management table 17 of FIG.

The contents of FIG. 2 are the identifiers (13, 51) for identifying the business processing process class, the identification numbers (131-512) for identifying the business processing process, and the terminal control process and the business processing process. The identification number (14, 61) of the message queue that realizes inter-process communication,
This is the status of the business process.

FIG. 3 shows the terminal control process 11 or the terminal control process 12 and the business processing process 131 or the business processing process 132 or the business processing process 13 of FIG.
This is a message format when performing inter-process communication of No. 3.

The message format is divided into a message type and text, and the text in this case is divided into a device identifier and data. The message type is an identifier used to retrieve a processing request or processing result queued in the message queue, and the device identifier is an identifier for clarifying the source of the processing request.

Next, the operation will be described.

When a business processing request is input to the terminal control process 11 from the input / output device 21, the terminal control process 11
Selects the business processing process class 13, obtains the message queue 14 corresponding to the business processing process class 13 by referring to the message queue management table 17, and obtains the business processing request and input information for the message queue 14 in FIG. Send in message format.

In the case of transmission from the terminal control process 11,
When a business processing request is made, the requested business processing process class 13
A known fixed value is set in the message type of FIG. 3 so that the business processing process 131, the business processing process 132, and the business processing process 133 of FIG. A logical identifier for identifying the input / output device 21 and the input / output device 22 is set in the device identifier in the message format so as not to be mixed with the processing result of (1).

When a business processing request is received from the corresponding message queue 14, the business processing process 131 activates the status of the message queue management table 17, refers to the device identifier which is the business processing request member, and the message type is the device. Receive the same thing as the identifier.

The business processing process 131 requests the database management system 15 for an update request for the database 3 generated by business processing.

After the business processing is completed, the message type of the processing result is used as a device identifier, and by transmitting it to the message queue 14, the terminal control process 11 receives a message whose message type is its own device identifier, and thereby receives a message from its own process. The business processing request result can be received.

The monitoring process 16 monitors the business process class 13 and the message queue 14. When the number of waiting process requests in the message queue 14 increases, the business process 131 or business process 132 or the business process 132 belonging to the business process class 13 By generating a copy of the process 133 to reduce the load on the message queue 14 and referring to the business process status of the message queue management table 17, the business process in the idle state or the abort state is searched and deleted.

[0023]

As described above, according to the present invention, one message queue is associated with each business process class, and the same business process is created and deleted to distribute business process requests and to distribute message queues. This has the effect of reducing the load on the.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a message queue management system of the present invention.

FIG. 2 is a diagram showing the contents of a message queue management table shown in FIG.

FIG. 3 is a diagram showing a message format when performing inter-process communication in FIG.

[Explanation of reference numerals] 1 host computer system 3 database 11, 12 terminal control process 13 business processing process class 14 message queue 15 database management system 16 monitoring process 17 message queue management table 21, 22 input / output device 131, 132, 133 business processing process

Claims (2)

[Claims] 1. A business processing request and an input / output device which receives input information relating to the business processing request and outputs a result corresponding to the business processing request, a database management system which manages functions required to use a database, A terminal control process for selecting an appropriate business processing process from a business processing request input from an input device, transmitting input information from the input device, and outputting a processed result to the output device; In a transaction processing system including a business processing process class having a plurality of same business processing processes for performing business processing by making a transaction processing request to the database management system in response to a request from a process, the terminal control process And the business within the business process class A message queue that is used to perform inter-process communication with a physical process and that exists for each business process class, and a message queue management table that manages correspondence information between the message queue and the business process class, A message queue management system comprising: a monitoring process for managing the message queue management table. 2. The message queue management method according to claim 1, wherein a message queue management table that manages an operating state of a business processing process in the business processing process class, and a business processing that manages the message queue management table A message queue management method, comprising: a monitoring process for creating and deleting business processing processes in the business processing process class according to the number of requests and the operating status of the business processing processes in the business processing process.