JP2002297535A - Method of system setting change and program thereof in transaction processing system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reflect a system setting change requested from an operator in real time to server application during starting up in a transaction processing system. SOLUTION: When the system setting change request is input by the operator 10, a manager 3 updates a system setting information table 9. Also, the system setting change request is queued into reception queues 6-1 to 6-3 for use in setting change in one-to-one correspondence with each server application 4-1 to 4-3. Each server application 4-1 to 4-3 monitors regularly the reception queues 6-1 to 6-3 for use in setting change corresponding to own application in the same way as a reception queue 5 for use in transaction. Upon detecting the queuing of the system setting change request, it is extracted and executed to change the system setting in the own application.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a system setting change method in a transaction processing system.

[0002]

2. Description of the Related Art Transaction processing is a so-called online real-time processing, and is a computer system that can immediately process given information and receive the result at a required place. The side that requests processing is called a client, and the side that executes the requested processing and returns a result is called a server. Generally, a client application (abbreviation of client application program) is provided on the terminal device side, and the terminal device is connected to the terminal device via a communication line. A server application (abbreviation of server application program) is provided on the side of the host computer connected to the host computer.

[0003] A transaction, which is one logical processing request unit, is transmitted from a client application to a server application. The server application processes the transaction according to the preset system setting information, and returns the result to the client application. Here, the system setting information includes various information such as an environment variable and a transaction timeout time. Generally, in order to ensure immediacy, a plurality of server applications are provided, and a plurality of transactions are processed concurrently. A method of distributing transactions to individual server applications includes a method of temporarily storing arriving transactions in a queue (queue) common to all server applications, and a method of extracting a transaction from any queue by any server application. There is a method provided for each server application, and a server application that executes the transaction is determined by which queue stores the arriving transaction. However, the latter method has problems such as difficulty in controlling transactions to be processed in the order of arrival and difficulty in controlling the load distribution of multiple server applications.
Usually, the former method is often used.

FIG. 10 shows a conventional configuration of this type of transaction processing system. As shown in FIG. 1, the conventional transaction processing system manages a client application 1 that makes a transaction request, a terminal transmitting / receiving unit 2 that receives a transaction request from the client application 1, a whole transaction processing system, and a system from an operator. A manager 3a for receiving setting changes, a system setting information table 9 for storing system setting information, a receiving queue 5 for queuing transaction requests from the client application 1, and a plurality of servers for executing the queued transaction requests. It comprises an application 4a and a transmission queue 7 for queuing transaction execution results.

[0005] The conventional transaction processing system having such a configuration operates as follows.

The system setting information table 9 stores necessary system setting information in advance. At the time of system startup, each server application 4a refers to the system setting information table 9 as part of the initialization processing,
API provided by the operating system (Appl
Iccation Programming Inter
The system setting is performed by using the user interface (face) or the like, and the system setting set in the system setting information table 9 is reflected in the own application. Then, it monitors whether there is a transaction request in the reception queue 5, and if so, fetches and executes the transaction request, stores the processing result in the transmission queue 7, and again executes the reception queue 5.
A loop process such as returning to the process of monitoring whether or not a transaction request exists in the server is performed.

On the other hand, when a transaction request is received from the client application 1, the terminal transmitting / receiving unit 2
It is stored in the reception queue 5. Further, when the transaction processing result is stored in the transmission queue 7, a process of taking the transaction processing result and returning it to the client application 1 is performed.

When the manager 3a receives a request for changing the system setting information from the operator during the operation of the system, the manager 3a updates the system setting information table 9. This update is not immediately reflected in the system settings of the server application 4a, but is reflected at the next restart of the server application 4a.

As another conventional example, each server application 4a refers to the system setting information table 9 immediately before executing an individual transaction, and reflects the changed system setting information in its own system setting. ing.

On the other hand, as conventional documents related to the present invention, Japanese Patent Application Laid-Open No. 2000-250767 (hereinafter referred to as Reference 1), Japanese Patent Application Laid-Open No. 11-259346 (hereinafter referred to as Reference 2), and Japanese Patent Application Laid-Open No. 8-137797 (Hereinafter, Reference 3)
There is. Literature 1 and Literature 2 are similar to the present invention in that a transaction from a client is passed to a server via a queue, but do not describe dynamic change of system setting information. Reference 3 is similar to the present invention in that system settings are changed during system operation,
It is intended for an autonomous distributed system, and does not reflect system setting change information given by an operator during system operation.

[0011]

As described above, in the conventional transaction processing system, each server application 4a executes a system setting process according to the system setting information table 9 only when its own program is started. Therefore, even if the operator changes the contents of the system setting information table 9 during system operation, there is a problem that the system settings of each server application 4a cannot be changed in real time.

According to the configuration in which each server application 4a refers to the system setting information table 9 to change the system settings immediately before executing each transaction, the system settings can be changed during the operation of the system. However, since the process of redoing the system setting by referring to the system setting information table 9 immediately before executing the transaction always runs, there is a problem that the response time of the transaction becomes extremely long.

An object of the present invention is to enable a system setting change requested by an operator to be reflected in a running server application in real time without unnecessarily increasing the response time of a transaction.

[0014]

A system setting change system in a transaction processing system according to the present invention has a one-to-one correspondence with a plurality of server applications, and a setting change reception which is periodically monitored by the corresponding server application. A queue; and a manager for transmitting a system setting change request input from an operator to the server application via the setting change reception queue. More specifically, a plurality of server applications, a transaction reception queue and a transaction transmission queue common to the plurality of server applications, and queuing a transaction from the client application in the transaction reception queue, A terminal transmitting / receiving unit for transmitting a transaction processing result queued in a transmission queue to the client application, a system setting information table holding system setting information related to the server application, and a manager for receiving a system setting change request from an operator And a setting change receiving queue provided in a one-to-one correspondence with the server application. A transmission queue for setting change provided in common to a plurality of server applications, wherein the manager updates the system setting information table in response to the received system setting change request; Means for determining whether or not it is necessary to reflect the system setting relating to the request in real time; and means for queuing the received system setting change request in the setting change reception queue when it is necessary to reflect the request in real time. And a means for taking out a system setting change processing result from the setting change transmission queue and notifying the operator of the completion of the system setting change, wherein each of the server applications includes the transaction receiving queue and the setting corresponding to the application itself. Change receive queue Means for periodically monitoring the transaction, means for taking out and processing the transaction existing in the transaction reception queue, queuing the result in the transaction transmission queue, and system setting change request existing in the setting change reception queue. Means for taking out and processing the result, and queuing the result in the setting change transmission queue.

[0015] The manager may determine whether the received system setting change request targets all of the server applications or a specific server application. If it is targeted, the received system setting change request is queued in all of the setting change reception queues, and if the specific server application is targeted, the received system setting change request is Means for queuing in the setting change reception queue corresponding to the server application.

The manager may determine whether it is necessary to reflect in real time the system setting according to the received system setting change request based on a designation from an operator. It is determined whether or not the system setting information to be changed in the setting change request is of a type that becomes effective if the server application changes its own system setting during startup without restarting the server application. You may do it.

[0017]

According to the system setting change method in the transaction processing system of the present invention, when a system setting change request is input from an operator, the manager corresponds the system setting change request to each server application on a one-to-one basis. Queue to the setting change reception queue. Each server application periodically monitors the setting change reception queue corresponding to its own application in the same way as the transaction reception queue, and when it detects that a system setting change request is queued, it takes out the request. Execute to change the system settings in the own application.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings.

First, system setting information in the transaction processing system will be described.

The resources to be managed by the transaction processing system are various, such as terminal devices, queues, server applications, and so on. Therefore, there are various types of system setting information. It is related to the application. The following is an example of system setting information related to the server application.

(1) Type 1 (a) Stack size of process (thread) (b) Timeout time for execution of initialization processing (c) Argument at program startup

(2) Type 2 (a) Process environment variables (b) Trace output level (c) Database connection reconnection (d) Process priority (e) Transaction timeout period (f) Transaction priority Every time

Type 1 is system setting information that becomes effective without restarting the server application.
Type 2 is system setting information that becomes effective if the server application changes its own system settings during startup without restarting the server application.
Type 2 system setting information can be further divided into those (a) to (d) that can be set for each server application and those (e) and (f) that are common to all server applications. All the system setting information exemplified in the type 1 can be set for each server application. In the present invention, it is intended to change such type 2 system setting information in real time. Hereinafter, the system setting information belonging to the type 2 will be briefly described.

(A) Process environment variables Environment variables are variables that can be set individually for each process, and are provided by an OS (operating system). Environment variables consist of pairs of variable names and values. Each process (server application) executes O for the environment variable specified in the system setting information.
By using the API provided by S, an environment variable for its own process can be created or its value can be changed. In the case of linking with an existing product, it is possible to link by creating an environment variable designated by the existing product and setting a value. For example, when linking with the database ORACLE, the environment variables OLACE-HOME and O
Create and configure a LACLE-SID. Examples of common environment variables and usage examples are shown below. Examples of general environment variables: PATH: Indicates the search directory order of the program execution module. LANG: Indicates a language and a character code to be used. HOME: Indicates a home directory. ○ Example of use: ・ Add a new directory to the program execution module search directory → change the environment variable PATH. -Change the language used from English to Japanese → Change the environment variable LANG.・ Environment variable OLACLE to cooperate with OLACE
-Create HOME and OLACLE-SID.

(B) Trace output level This system setting information indicates whether or not a trace is to be output when each process (server application) wants to output a trace for the purpose of debugging or the like, and its level (detail level, summary level, etc.). Used when setting.

(C) Reconnection of the database connection If the process (server application) is connected to the database, and if the database terminates abnormally for some reason during process startup, the connection to the database is disconnected. Would. When the database is restored, a connection must be made with the disconnected database in order to start linking with the database again. Normally, the connection to the database is expensive when the process is initialized, and the connection created during the initialization is used until the process is completed. If the database terminates abnormally while the process is running (the connection is disconnected),
In order to perform normal reconnection, it is necessary to restart the process. It is the system setting information that sets whether or not to perform this reconnection operation while the process is operating.

(D) Priority of Process A process (server application) with a high priority is assigned a CPU preferentially by the function of the OS.
It is this system setting information that specifies the priority of each process.

(E) Timeout Time of Transaction When each process (server application) executes a transaction in response to a request from a client application, a timeout time is provided for the transaction. Cancel processing and return transaction execution timeout to client application.
This is to prevent the server and the client from not responding. A timer is used for that. It is this system setting information that determines the timer value.

(F) Priority of Transactions A priority is set for each transaction, and when a request with a higher priority is queued, the request is executed with higher priority than other requests. At that time, the queuing position is determined according to the priority, and the transaction request with the highest priority is always stored at the head of the queue. Generally, an identifier is assigned to a transaction according to its type, and the system setting information specifies the transaction priority for each identifier.

Next, an embodiment of the present invention having a function of dynamically changing the above-described system setting information during system operation will be described.

Referring to FIG. 1, a transaction processing system according to an embodiment of the present invention
And a host computer H connected to the terminal device T via a communication line L. Although only one terminal device T is shown in FIG. 1, a plurality of terminal devices generally exist.

A client application 1 for making a transaction request is mounted on the terminal device T. When making a transaction request to the host computer H, the client application 1
A transaction including one or more messages and a transaction identifier is transmitted to the host computer H via the communication line L.

The host computer H has a terminal transmitting / receiving unit 2, a manager 3, a plurality of server applications 4-
1-4-3, all server applications 4-1 to 4-3
, A transaction reception queue 5 and a transmission queue 7, which are provided in common with the server applications 4-1 to -4.
-3 setting change receiving queues 6-1 to 6-
3. A setting change transmission queue 8 and a system setting information table 9 provided in common to all server applications 4-1 to 4-3 are mounted. There are also operating systems and databases that are referenced and updated by each of the server applications 4-1 to 4-3, but they are not shown.

The transaction reception queue 5 is a queue for holding a transaction sent from the client application 1, and the transaction transmission queue 7 is a server application 4-1 to 4-3.
This is a queue that holds the transaction processing result of
These are queues prepared in the conventional system. On the other hand, the setting change reception queue 6-1 to 6-1
6-3 and the setting change transmission queue 8 are queues newly provided in the present invention.

The setting change receiving queues 6-1 to 6-3 are:
This queue is provided in one-to-one correspondence with the server applications 4-1 to 4-3, and holds a system setting change request for the corresponding server application. The setting change transmission queue 8 is a queue that holds the result of processing the setting change request by the server applications 4-1 to 4-3. This queue 8 is queue 6-1
Server applications 4-1 to -4
-3 are commonly provided.

The system setting information table 9 is a table for holding system setting information as in the conventional system. All the type 1 and type 2 system setting information described above are held. The manager 3 is a program for managing the entire transaction processing system. The difference from the conventional manager lies in the system setting change processing function. The conventional manager merely reflects the system setting change input from the operator 10 on the system setting information table 9, but the manager 3 of the present embodiment additionally includes the system setting change input from the operator 10. A function for determining whether the target system setting information is type 1 or type 2; in the case of a system setting change request relating to type 2 system setting information, the system setting change is further directed to a specific server application Function to determine whether the request is for one or all server applications. If the request is a system setting change request for a specific server application, the corresponding server application 4-1 to 4-3
A function of queuing the system setting change request in the setting change reception queues 6-1 to 6-3 corresponding to the server applications 4-1 to 6-3. 4-
A function of queuing the system setting change request in all of the setting change receiving queues 6-1 to 6-3 corresponding to No. 3; taking out the system setting change result from the setting change sending queue 8; A function to notify the completion of the process is provided.

Each server application 4-1 to 4-3
Performs a system setting process by referring to the system setting information table 9 at the time of activation, processes the transactions queued in the transaction reception queue 5, and queues the result in the transaction transmission queue 7. The same processing as the server application in the conventional system is performed, and the setting change reception queue 6-1 corresponding to the own application is performed.
6-3, a function for periodically monitoring whether a system setting change request exists, a function for changing a system setting in the own application according to the existing system setting change request, and a processing result of the system setting change for setting change It has a function of queuing in the transmission queue 8.

The terminal transmission / reception unit 2 queues the transaction sent from the client application 1 in the transaction reception queue 5 and holds the transaction processing result in the transaction transmission queue 7, as in the conventional system. If so, pull it out and client application 1
It has a function to send to.

Next, the schematic operation of this embodiment will be described with reference to FIGS.

(1) At the time of starting the server application When the server applications 4-1 to 4-3 are started, the system refers to the system setting information table 9 as shown in FIG. 2 as part of the initialization processing ((1) ), Make system settings for your application.

(2) Processing of Transaction from Client Application 1 As shown in FIG. 3, when a transaction request is transmitted from the client application 1 ((1)), the terminal transmission / reception unit 2 receives this and sends the transaction request. It is queued in the reception queue 5 ((2)). The transaction request queued in the transaction reception queue 5 is sent by an arbitrary one of the server applications 4-1 to 4-3 (4-1 in FIG. 3). It is fetched ((3)), executed, and the result is queued in the transaction transmission queue 7 ((4)). The terminal transmission / reception unit 2 extracts the transaction result from the transaction transmission queue 7 ((5)),
It is transmitted to the client application 1 ((6)).

(3) System Setting Change (A) Type 1 System Setting Information Change As shown in FIG. 4, when the operator 10 inputs a request for changing the system setting information belonging to type 1 ((1)), The manager 3 changes the requested system setting information in the system setting information table 9 in the system setting change request as requested ((2)), and ends the processing.
In this case, when the server applications 4-1 to 4-3 are restarted, the server applications 4-1 to 4-3 refer to the system setting information table 9 to reflect the changed system settings.

(B) Change of system setting information for all server applications in type 2 system setting information As shown in FIG.
When a request for changing the system setting information for -1 to 4-3 is input ((1)), the manager 3 requests the system setting information in the system setting information table 9 to change the system setting information. Is changed as requested ((2)), and then each of the server applications 4-1 to 4-3
The system setting change request is queued in all of the setting change receiving queues 6-1 to 6-3 corresponding to (3).
. Each of the server applications 4-1 to 4-3 periodically monitors the setting change reception queues 6-1 to 6-3 corresponding to the own application 4-1 to 4-3, and is queued. When the system setting change request is found, it is taken out ((4)). Then, each of the server applications 4-1 to 4-3 changes the system settings of the own application in accordance with the system setting change request, and queues the processing result in the setting change transmission queue 8 ((5)). When the manager 3 retrieves the processing result indicating the completion of the setting change from all the server applications 4-1 to 4-3 from the setting change transmission queue 8 ((6)), the manager 3 sends the setting change result to the operator 10. Notice
((7)).

(C) Change of System Setting Information Targeting a Specific Server Application in Type 2 System Setting Information As shown in FIG. When a request to change the system setting information for the application (4-1 in the example of FIG. 6) is input ((1)), the manager 3 requests the change by the system setting change request in the system setting information table 9. After changing the system setting information as requested ((2)), the server application 4-
The system setting change request is queued in the setting change reception queue 6-1 corresponding to No. 1 ((3)). The server application 4-1 periodically monitors the setting change reception queue 6-1 corresponding to the application itself.
When a queued system configuration change request is found, it is retrieved ((4)). Then, in accordance with the system setting change request, the system setting is changed in the own application, and the processing result is transmitted to the setting change transmission queue 8.
Queue to ((5)). The manager 3 extracts the processing result indicating the completion of the setting change from the server application 4-1 from the setting change transmission queue 8,
((6)) notifies the operator 10 of the setting change result
((7)).

FIG. 7 shows each of the server applications 4-1 to 4-1.
FIG. 8 is a flowchart illustrating a processing example of the terminal transmitting / receiving unit 2, and FIG. 9 is a flowchart illustrating a processing example of the manager 3. Each program for the server applications 4-1 to 4-3, the terminal transmitting / receiving unit 2 and the manager 3, and each queue 5, 6
The configuration data of 1-6-3, 7, 8 and the system setting information table 9 are stored in a mechanically readable recording medium such as a semiconductor memory or a magnetic disk. The programs and data stored in the recording medium are read by the host computer, and by controlling the operation of the host computer, the server applications 4-1 to 4-3, the terminal transmitting / receiving unit 2, the manager 3, and the The queues 5 6-1 to 6-3, 7, 8 and the system setting information table 9 are realized. Hereinafter, the operation of the present embodiment will be described in more detail with reference to the flowcharts of FIGS.

(1) When the server application is started The system setting information table 9 stores the initial values of the type 1 and type 2 system setting information and the system setting information at the end of the previous operation from, for example, an external auxiliary storage device. Has been loaded. When the server applications 4-1 to 4-3 are started at the time of system startup, the system setting information table 9 is referred to as part of the initialization processing, and the type 1 and type 2 set in this table 9 are set.
Each system setting is performed using an API or the like in order to make the system setting of the own application effective. Then, each of the server applications 4-1 to 4-3 starts the processing shown in FIG.

(2) Processing of Transaction from Client Application 1 The transaction request transmitted from the client application 1 is received by the terminal transmitting / receiving unit 2. As shown in FIG. 8, the terminal transmitting / receiving unit 2 determines whether there is a transaction request from the client application 1, or queues the transaction processing results from the server applications 4-1 to 4-3 in the transaction transmission queue 7. Monitoring of whether or not there is is started (S21). When there is a transaction request from the client application 1 (S22), the request is accepted and the transaction request is queued in the transaction reception queue 5 (S23).

Each server application 4-1 to 4-3
In step S11 of FIG. 7, whether or not a transaction is queued in the transaction reception queue 5 is queued in the setting change reception queues 6-1 to 6-3 corresponding to the application. The server application 4-i (i = 1, 2, 3) that first finds a transaction request queued in the transaction reception queue 5 by the terminal transmission / reception unit 2 and retrieves it. The server application 4-i determines whether the extracted request is a transaction request or a system setting change request (S12). In this case, since the request is a transaction request, the server application 4-i executes the transaction and stores the result in the transaction transmission queue 7. It queues (S13).

The transaction result queued in the transaction transmission queue 7 is transmitted to the terminal
Is detected in step S21 of FIG. 8 and transmitted to the client application 1 as a transaction result (S24).

When the terminal transmitting / receiving unit 2 and each of the server applications 4-1 to 4-3 access the transaction reception queue 5 and the transaction transmission queue 7, exclusive control is performed.

(3) System Setting Change When changing system setting information during system operation, the operator 10 inputs a system setting change request to the manager 3 from an input / output unit such as a console (not shown). The system setting change request input by the operator includes:
Information that identifies the system configuration information to be changed, the value after the change, and whether or not to reflect it in real time (that is,
Type 2), whether to target all server applications or one specific server application. In the case of targeting one specific server application, information such as an identifier for specifying the server application is also included.

As shown in FIG. 9, the manager 3 monitors whether there is a system setting change request from the operator 10 (S31), and upon detecting the system setting change request, first, in the system setting information table 9, The system setting information requested to be changed by the system setting change request is changed as requested (S32). Next, it is determined whether or not the system setting change request is specified to be reflected in real time (S33). If not, the stack size of a process (thread) belonging to type 1 is determined. In the case of a change in the system setting information related to the execution timeout time of the initialization process, the argument at the time of starting the program, etc., the process returns to step S31 to continue monitoring the system setting change request from the operator. In this case, when the server applications 4-1 to 4-3 are restarted, the server applications 4-1 to 4-3 refer to the system setting information table 9 to reflect the changed system settings.

On the other hand, if the current system setting change request is a change of type 2 system setting information designated to be reflected in real time, the setting change request causes all server applications 4-1 to 4-3 to change. It is determined whether the target is a target or a specific server application (S34).

In the case of a system setting change request for a specific server application, such as a process environment variable, a trace output level, a database connection reconnection, and a process priority, the designated server application 4-i (i = 1, 2, 3), the system setting change request is queued in the setting change reception queue 6-i (S35).

Each server application 4-i is configured as shown in FIG.
In step S11, it is determined whether a transaction is queued in the transaction reception queue 5 and whether a system setting change request is queued in the setting change reception queue 6-1 to 6-3 corresponding to the own application. While monitoring, when the manager 3 queues a system setting change request in the setting change reception queue 6-i of the server application 6-i, the request is detected and taken out by the server application 4-i. The server application 4-i
Determines whether the retrieved request is a transaction request or a system setting change request (S12). In this case, since the request is a system setting change request, the system setting change is performed in accordance with the system setting change request and reflected in its application. The setting change completion notification is queued in the setting change transmission queue 8 as a processing result (S14).

In step S36 of FIG. 9, the manager 3 monitors whether the setting change completion notification from the server application 4-i is queued in the setting change transmission queue 8, and detects that it has been queued. Then, it is taken out (S37), and the setting change result indicating that the setting change is completed is notified to the operator 10 (S37).
41). Then, returning to step S31, the operator 1
Monitoring of the system setting change request from 0 is continued.

On the other hand, in the case of a system setting change request for all server applications, such as the transaction timeout time and transaction priority, the manager 3 sends all the server applications 4-
Setting change reception queues 6-1 to 6 corresponding to 1 to 4-3
-3, the system setting change request is queued (S38).

Each server application 4-i is shown in FIG.
In the monitoring process of step S11, when it is detected that the system setting change request is queued in the setting change receiving queues 6-1 to 6-3 corresponding to the own application,
Take it out, change the system settings according to the system setting change request, reflect it in your application,
The setting change completion notification is queued in the setting change transmission queue 8 as a processing result (S14).

In step S39 of FIG. 9, the manager 3 monitors whether the setting change completion notification from the server applications 4-1 to 4-3 is queued in the setting change transmission queue 8. When the setting change completion notification of the applications 4-1 to 4-3 is detected and taken out (S40), the setting change result indicating that the setting change is completed is notified to the operator 10 (S41). . Then, the process returns to step S31 to continue monitoring the system setting change request from the operator 10.

It should be noted that the manager 3 and each of the server applications 4-1 to 4-3 transmit the setting change reception queue 6--6.
When accessing 1 to 6-3 and the setting change transmission queue 8, exclusive control is performed.

In the above embodiment, the operator 10 specifies whether or not to reflect the system setting information relating to the system setting change in real time, and the manager 3 cuts off the processing according to the specification.
List of system setting information belonging to type 1 and type 2
A list of system setting information belonging to
The manager 3 determines whether the system setting information to be changed by the system setting change request input from 0 is type 1 or type 2 by referring to the list, and separates the processing. May be. In this case, the designation by the operator 10 as to whether or not to reflect in real time may be omitted.

[0062]

As described above, according to the present invention, the following effects can be obtained.

The system setting change requested by the operator can be reflected on the running server application in real time. The reason is that the system setting change request from the operator is transmitted to the server application via the setting change reception queue, and the system setting is changed by the server application, so that the system setting can be changed without waiting for the next restart. It is because it becomes.

The response time of a transaction is not unnecessarily increased. The reason is that each server application requires a process of monitoring the setting change queue, but the overhead is much smaller than the process of referring to the system setting information table immediately before executing a transaction and performing system setting again. Because.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a schematic operation explanatory diagram at the time of starting a server application in the embodiment of the present invention.

FIG. 3 is a schematic operation explanatory diagram of a transaction process from a client application in the embodiment of the present invention.

FIG. 4 is a schematic operation explanatory diagram when changing type-1 system setting information in the embodiment of the present invention.

FIG. 5 is a schematic operation explanatory diagram when changing system setting information for all server applications in type 2 system setting information according to the embodiment of the present invention;

FIG. 6 is a schematic operation explanatory diagram when changing system setting information for a specific server application among type 2 system setting information according to the embodiment of the present invention;

FIG. 7 is a flowchart illustrating a processing example of a server application.

FIG. 8 is a flowchart illustrating a processing example of a terminal transmission / reception unit.

FIG. 9 is a flowchart illustrating a processing example of a manager.

FIG. 10 is a configuration diagram of a conventional transaction processing system.

[Explanation of symbols]

 T: Terminal device H: Host computer L: Communication line 1: Client application 2: Terminal transmitting / receiving unit 3: Manager 4-1 to 4-3: Server application 5: Transaction reception queue 6-1 to 6-3: Setting change Receive queue for transaction 7 ... Transmission queue for transaction 8 ... Transmission queue for setting change 9 ... System setting information table 10 ... Operator

Claims (7)

[Claims] 1. One to one server application
A setting change reception queue that is periodically monitored by the corresponding server application, and a manager that transmits a system setting change request input from an operator to the server application via the setting change reception queue. A system setting change method in a transaction processing system equipped with. 2. A plurality of server applications, a transaction reception queue and a transaction transmission queue common to the plurality of server applications,
A terminal transmission / reception unit for queuing a transaction from a client application in the transaction reception queue and transmitting the transaction processing result queued in the transaction transmission queue to the client application; and system setting information related to the server application. And a manager for receiving a system setting change request from an operator, comprising: a setting change reception queue provided in the server application in a one-to-one correspondence. A setting change transmission queue provided in common to the plurality of server applications, wherein the manager responds to the received system setting change request by the system. Means for updating the setting information table, means for determining whether or not it is necessary to reflect the system setting according to the received system setting change request in real time, and Means for queuing a setting change request in the setting change reception queue, means for extracting a system setting change processing result from the setting change transmission queue, and notifying the operator of the completion of the system setting change, wherein each of the server applications Means for periodically monitoring the transaction reception queue and the setting change reception queue corresponding to the application; extracting and processing a transaction existing in the transaction reception queue; Queue And a means for taking out and processing a system setting change request existing in the setting change reception queue, and queuing the result in the setting change transmission queue. System setting change method. 3. The system according to claim 1, wherein the manager determines whether the received system setting change request targets all of the server applications or a specific server application. If it is targeted, the received system setting change request is queued in all of the setting change reception queues, and if the specific server application is targeted, the received system setting change request is 3. A system setting change method in the transaction processing system according to claim 2, further comprising means for queuing the setting change reception queue corresponding to a server application. 4. The system according to claim 2, wherein the manager determines whether it is necessary to reflect the system setting according to the received system setting change request in real time based on a designation from an operator. System setting change method in the transaction processing system described in 5. The system according to claim 1, wherein the manager determines whether or not it is necessary to reflect the system setting according to the received system setting change request in real time by using the system setting information to be changed in the received system setting change request. 4. The transaction processing according to claim 2, wherein a determination is made as to whether or not the server application is of a type that becomes effective if the server application changes its system setting during startup without restarting the server application. System setting change method in the system. 6. The system setting in the transaction processing system according to claim 2, wherein each of the server applications includes means for making a system setting in the own application by referring to the system setting information table at the time of startup. Change method. 7. A host computer that constitutes a transaction processing system includes a plurality of server applications, a transaction reception queue and a transaction transmission queue common to the plurality of server applications, and a transaction from a client application in the transaction reception queue. A terminal transmitting / receiving unit for queuing and transmitting the transaction processing result queued in the transaction transmission queue to the client application, a system setting information table holding system setting information related to the server application, and a system setting from an operator Manager accepting change request, one-to-one with server application
Function as a setting change reception queue provided in correspondence with the setting change transmission queue provided in common to the plurality of server applications, and further, the manager responds to the received system setting change request. Means for updating the system setting information table, means for judging whether or not it is necessary to reflect the system setting relating to the received system setting change request in real time, and the system in which it is necessary to reflect the system setting in real time Means for queuing a setting change request in the setting change reception queue, means for extracting a system setting change processing result from the setting change transmission queue, and notifying the operator of the completion of the system setting change, and further comprising: Server application for the transaction A means for periodically monitoring the communication queue and the setting change reception queue corresponding to the application; a means for taking out and processing a transaction existing in the transaction reception queue; and queuing the result in the transaction transmission queue. A program functioning as means for taking out and processing a system setting change request existing in the setting change reception queue, and queuing the result in the setting change transmission queue.