JP3661580B2 - Generation management method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to non-stop by associating an application program on a client in a client-server system with an application program on a server having the same generation, and causing the old generation and the new generation to coexist when the program is upgraded. More particularly, the present invention relates to a generation management system characterized by having generation management information of a client-server program only on the server computer side.
[0002]
[Prior art]
In a client-server type system, for example, when the client and server application programs are updated at the same time in order to switch to a new version having an added / extended function, The procedure is often performed in such a manner that the operation is stopped, a new client / server program is installed and re-executed.
[0003]
On the other hand, in a system such as electronic commerce using a computer, there are an unspecified number of users, and it is assumed that 24-hour transactions are possible so that access is always possible even in areas with time differences around the world. It is essential not to do it.
[0004]
In order to prevent a client-server system from being stopped, a method has been conventionally adopted in which both the client and the server independently manage the generation before the update and the new generation after the update to the new version. It was done. Details are described in Japanese Patent Application No. 11-165288. FIG. 5 is a block diagram showing the configuration of the invention. According to FIG. 5, the client process and the server process are each implemented with information for managing generations. As a result, different generations of programs are selectively called to enable a parallel operation state by a plurality of generations, so that the programs can be updated in stages without being stopped.
[0005]
[Problems to be solved by the invention]
However, the conventional techniques have the following problems in productivity and maintainability. The first problem is that generation information must be managed by both the client and the server. For example, in the above-mentioned Japanese Patent Application No. 11-165288, for example, when a new generation is registered, management information on the client side and the server side can be updated with one command. In the case of being composed of hundreds or thousands, there is a problem in maintenance because management information is distributed to all clients. This is because an unguided user who performs an operation on the client may accidentally delete or change the management information of the generation. Yet another problem
・ You must code with the generation number in mind.
・ If you do not look at the program source, you will not be able to confirm generation information.
was there.
[0006]
For this reason, sometimes there is a generational discrepancy between the client and the server, and the system may malfunction due to a combination of different generations, not a dialogue between the same generation client and server program.
[0007]
[Means for Solving the Problems]
The first generation management method of the present invention stores the application program of the server that is the management target of the generation in the generation management method in which the generations of the application programs that operate in cooperation with each other as a client and a server are made to match. A client AP generation information table describing an AP storage file, one or more generations for a client application program and a process name corresponding to the generation, and a server corresponding to one or more generations and the generation for a server application program The server AP management table describing the application program name and the server application program described in the server AP management table when the own process is started up are read from the AP storage file into the own process. AP management table initializing means for linking and starting up, AP management table updating means for performing the same processing as the AP management table initializing means after starting up the own process, and a request for accepting connection information from the client The application program on the server associated with the generation of the process name of the client is called by combining the client AP generation information table and the server AP management table with the receiving means and the client process name in the connection information. Server AP calling means, and operates on the server Server processing section A self-process name acquisition means for acquiring a name of the self-process, and a logical application program name to which the self-process belongs in a logical application program consisting of a plurality of generations and an application program group operating in cooperation with a client and a server The transmission message including the acquired process name is Server processing section A request transmission means for notifying the client and operating on the client Client processing part And comprising.
[0008]
According to a second generation management method of the present invention, in the first invention, initial registration information for the logical application program consisting of one or more generations, and additional information and update information of the latest generation for the already registered logical application program A generation definition file that stores information, and a generation information table initialization unit that reflects client information in the client AP generation information table and server information in the server AP generation information table for the logical application program that has been initially registered. The generation update means for reflecting the addition and update information to the client AP generation information table and the server AP generation information table in the same manner as the generation information table initialization means, and the contents of the server AP generation information table as the server AP Previous to management table Server processing section The server includes an AP management table initializing unit that reflects when the AP is started up, and an AP management table updating unit that executes the same processing as the AP management table initializing unit after starting up.
[0009]
According to a third generation management method of the present invention, in the first or second invention, the logical AP generation definition file performs start control of an application program on a server belonging to the logical application program with respect to the logical application program. Server processing section Process name, application program generation, client process name corresponding to each generation, server application program name corresponding to the client process name, and server application program entry name.
[0010]
According to a fourth generation management method of the present invention, in the first, second or third invention, the server AP management table includes, for the logical application program, a name of an application program on a server belonging to the logical application program, An application program generation, an application program entry name, and an application program entry name address are provided.
[0011]
According to a fifth generation management method of the present invention, in the first invention, the Server processing section Comprises managing one or more of the logical application programs.
[0012]
According to a sixth generation management method of the present invention, in the first invention, the Server processing section Has the name of each logical application program managed by its own process and the number of application programs on the server belonging to each logical application program that are simultaneously started up, according to the number of application programs The server AP management table area is reserved.
[0013]
The seventh generation management system of the present invention is the first invention, wherein Server processing section Comprises one or more on the server.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. In the following description, “application program” is abbreviated as “AP”.
[0015]
FIG. 1 shows the configuration of the present embodiment. Hereinafter, main components will be described.
[0016]
Referring to FIG. 1, in a client-server system, a client computer 30 composed of a personal computer or the like on which a client process 31 operates, and a server computer 40 composed of a workstation or a general-purpose computer on which a server AP activation process 41 operates. They are connected via a network 50 such as a LAN or a public line. Although only one client computer 30 is shown in FIG. 1, the server computer 40 can be connected to a plurality of client computers 30.
[0017]
The server AP activation process 41 manages the activation and termination of one or more generations of APs that operate simultaneously on the server. Although only one server AP activation process 41 is shown in FIG. 1, a plurality of server AP activation processes 41 may operate on the same server computer 40.
[0018]
The logical AP generation definition file 11 operates as a client-server type, and names of all logical APs to which the present invention is applied and a server AP activation process 41 that controls activation / termination of APs on the servers constituting each logical AP. Is associated with the name. Further, for each logical AP, the generation of the logical AP, the name of the client process 31 for each generation, the AP name of the AP on the server corresponding to the generation of the client process 31, and the AP entry name on the server And store. The contents are illustrated in FIG.
[0019]
The logical AP here has a client-server type configuration, and refers to a set of APs on the client and APs composed of one or a plurality of generations that execute the same business. .
[0020]
When new registration or change to the logical AP generation definition file 11 relating to a certain logical AP is performed by the input of the command 20 by the operator, the generation information table initializing means 12 or the generation updating means 13 subsequently operates. The generation information table initialization unit 12 operates when a logical AP is newly registered, and the generation update unit 13 operates in other cases.
[0021]
The generation information table initialization unit 12 reads information from the logical AP generation definition file 11 based on the logical AP name that has been registered or changed, and the client included in the server AP activation process 41 associated with each logical AP. After the process generation information table 14 and the server AP generation information table 15 are initialized, the read information is expanded into a file.
[0022]
The generation update unit 13 thereafter updates the client process generation information table 14 and the server AP generation information table 15 when the logical AP generation definition file 11 is changed.
[0023]
The AP management table initializing means 16 reads the server AP generation information table 15, initializes the server AP management table 18, and expands the read contents there.
[0024]
The AP management table update unit 17 reflects the update information of the server AP generation information table 15 that has been updated thereafter in the server AP management table 18.
[0025]
The server AP management table 18 is obtained by taking the information of the server AP generation information table 15 into the main memory, and has logical AP information on the server related to each server AP activation process 41.
[0026]
Note that the server AP activation process 41 defines one or more logical AP names to be managed by the self process in the self process. It is also possible to define the number of APs to be managed including the latest generation for each logical AP in the own process as the number of management generations. In this case, the area of the server AP management table 18 or the server logical AP storage area 10 is defined. The size is secured according to (information length managing one generation x number of management generations). If the number of management generations is not specified, all generations including the latest generation are managed, so a large management table is secured in advance.
[0027]
Further, the AP management table initialization unit 16 and the AP management table update unit 17 dynamically assign the AP related to the server activation process 41 called from the client process 31 to its own process according to the contents of the created server AP management table 18. Load to main memory in linked form.
[0028]
Communication between the client process 31 and the server AP activation process 41 is performed via the transmission telegram 5 between the request transmission unit 4 in the client process 31 and the request reception unit 6 in the server AP activation process.
[0029]
The AP storage file 19 stores APs of each generation on the server for logical APs that are dynamically linked to the server AP activation process 41.
[0030]
Next, the operation of the first embodiment will be described in detail with reference to FIG. 1, FIG. 2, and FIG.
[0031]
The number of logical application programs associated with the server AP activation process 41 will be described below, but a plurality of logical application programs may be targeted.
[0032]
First, an AP call between a client and a server will be described from the development of the generation management table.
[0033]
When a new development is performed for a logical AP or when a transition to a new generation occurs for a logical AP in operation, an operator including a system administrator uses the command 20 to perform a logical operation on the logical AP. Information is newly registered or added to the AP generation definition file 11.
[0034]
When a logical AP is unregistered and a new logical AP is registered first, it corresponds to the logical AP name, the server AP activation process name associated with the logical AP, one or more generation information, and each generation information. The client process name, the AP name of one or more generations of servers corresponding to the client process name, and the entry name thereof are registered. In the case of addition, with respect to a certain logical AP, generation information to be added, a client process name corresponding to the generation, an AP name of a server program corresponding to the same generation, an entry name executed first, It is.
[0035]
The client process name and the server program AP name are different from the names of the existing generations that already exist. It is assumed that the AP on the server and the AP on the client are controlled so that those having the same generation operate in cooperation with each other.
[0036]
The content of the generation is usually a numerical value consisting of an integer, but it can be a letter or a letter and a number as long as the latest generation is known and the generation order of the old generation is known. Further, the generation of the client process in a certain logical AP is identified from the client process name.
[0037]
The logical AP generation definition file 11 stores information on one or more logical APs. When registration and update of the logical AP generation definition file 11 are completed, the generation information table initialization unit 12 and the generation update unit 13 are activated with the name of the logical AP that has been registered or updated as an argument. When a new logical AP is registered, the generation information table initialization unit 12 is called. The generation information table initialization unit 12 reads the information of the logical AP generation definition file 11 registered in this way (arrow (a) in FIG. 1).
[0038]
Based on the read information, the generation management table initialization unit 12 includes a client process generation information table 14 included in the server AP activation process 41 associated with the logical AP received as an argument, a server AP generation information table 15, , And create contents. As shown in FIG. 2B, the server AP generation information table 15 includes a logical AP name, a server AP name for each generation included in the logical AP, its generation, an entry name of the server AP, As shown in FIG. 2A, the client process generation information table 14 has a client process name and generation information for a certain logical AP (arrow (b) in FIG. 1).
[0039]
When the server AP activation process 41 starts up, the AP management table initialization means 16 in the server AP activation process 41 refers to the server AP generation information table 15 created in this way, and the logical AP related to the self process is determined. Is set as an AP management table 18 in its own process.
[0040]
As shown in FIG. 2C, the server AP management table 18 corresponds to the logical AP name, the AP name of the AP operating on the server corresponding to each subordinate generation, the generation, and each generation. It consists of the entrance name of the AP to be entered and the address of the entrance.
[0041]
The AP management table initialization means 16 reflects the read contents of the server AP generation information table 15 in a form of copying it to the server AP management table. At this time, information from the latest generation corresponding to the numerical value is set based on the number of management generations ((c) and (d) in FIG. 1).
[0042]
Immediately after the server AP activation process 41 is started up, the AP management table initialization means 16 loads the AP of each generation from the AP storage file 19 according to the setting contents after setting in the server AP management table 18 and activates the server AP. It is arranged on the server logical AP storage area 10 in the process 41. At this time, the entry address corresponding to the entry name is obtained for each generation AP read from the AP storage file 19 and set in a location corresponding to the generation in the server AP management table 18 ((e) in FIG. 1). ).
[0043]
Next, in the client computer 30, when a user starts up a client process 31 related to a certain generation of a certain logical AP, the client process main process 1 operates and calls the AP calling means 2. The AP calling unit 2 executes its own process name acquisition unit 3 to acquire its own process name possessed by the client process 31 ((f) in FIG. 1).
[0044]
The request transmission unit 4 of the client process 31 adds the acquired client process name and the logical AP name to be called on the server to the transmission message 5, and sends the request reception unit 6 of the server AP activation process 41 to FIG. It is transmitted in the message format as shown in According to FIG. 3, this message format has a client process name, a logical AP name, and a transmission data part consisting of data to be passed to the AP on the server ((g) in FIG. 1). When a plurality of server AP activation processes 41 operate on the server computer 40, information for identifying each server AP activation process 41 is also added. For example, when the TCP / IP communication protocol is used, the port number may be distinguished.
[0045]
The request reception means 6 of the server AP activation process 41 that has received the transmission message 5 transmitted by the client process 31 operates the server AP main process 7 ((h) in FIG. 1).
[0046]
Next, the server AP main process 7 calls the client generation determination means 8. The client generation determination process 8 refers to the client process generation information table 14 and determines the generation of the client process 31 from the client process name of the transmission message 5 and passes the determined generation to the server AP calling means 9 ((i in FIG. 1). )).
[0047]
The server AP calling means 9 refers to the server AP management table 18 based on the logical AP name passed in the transmission message 5 and the generation of the client process 31 passed from the client generation determination process 8, and determines the same generation as the client process. The AP of the logical AP that is included is determined, and the entry address of the program is acquired ((j) in FIG. 1).
[0048]
An AP operating on the server computer 40 of the generation corresponding to the client process 31 is selected from the server logical AP storage area 10, and the control is transferred to the entry address of the AP having the corresponding generation to perform a call ((k) in FIG. 1) ).
[0049]
Next, update processing of files and tables for managing generation information on the server computer 40 when generations are added or deleted will be described.
[0050]
When the logical AP information already registered in the logical AP generation definition file 11 is added or updated, the generation update unit 13 is activated. The generation update means 13 refers to the logical AP generation definition file 11 ((l) in FIG. 1).
[0051]
The generation update means 13 updates the contents of the server AP generation information table 15 and the client process generation information table 14 based on the information in the logical AP generation definition file 11 ((m) in FIG. 1).
[0052]
When the update is completed, the generation update unit 13 requests the AP management table update unit 17 of the server AP activation process 41 to update the generation information managed by the server AP management table 18 ((n) in FIG. 1).
[0053]
Upon receiving the request, the AP management table updating unit 17 updates the server AP management table 18 based on the contents of the server AP generation information table 15 and the client process generation information table 14 ((o) in FIG. 1).
[0054]
When the server AP of the generation corresponding to the generation added or deleted by the update is added, the load to the server logical AP storage area 10 is loaded, and the release from the server logical AP storage area 10 is performed in the case of deletion. ((P) of FIG. 1).
[0055]
A specific example of the processing of the AP management table update unit 17 will be described. For example, in the situation where the number of management generations is 3 and the 3rd generation AP including the latest generation is managed by the server AP management table 18, a new generation is added to the logical AP generation definition file 11, and the client AP generation A case where the information table 14 and the server AP generation information table 15 are updated will be described. At this time, it is assumed that the generation field of the server AP management table 18 is 1, 2, 3 from the previous generation. (At this time, the latest generation is 3.) It is assumed that information having numbers 2, 3, and 4 is registered in the server AP generation information table 15 as generations. (At this time, the newly added latest generation is assumed to be 4.) The AP management table updating means 17 changes the generation 2 information in the server AP management table 18 to the position where the generation 1 information was present, and the generation 3 information. Copy to the location where generation 2 was. Then, the information on the generation 4 of the server AP generation information table 15 is copied to the position where the generation 3 of the server AP management table 18 exists.
[0056]
For generations 2 and 3, the definition contents of the server AP generation information table 15 and the setting contents of the server AP management table 18 are compared with each other for the AP name and the entrance name. The contents of the server AP management table 18 are replaced with the contents of the information table 15. Then, the AP related to generation 1 deleted from the server AP management table 18 is deleted from the server logical AP storage area 10, and the corresponding AP is read from the AP storage file 19 based on the AP name of generation 4, and the server logical AP storage area is read out. 10 is loaded. At this time, the address corresponding to the entry name of the generation 4 AP is set in the generation 4 address field of the server AP management table 18. In addition, even if there is a part where the result of comparison of the AP name and the entrance name for the generations 2 and 3 is inconsistent, the deletion and reloading of the APs of the corresponding generation are executed in the same manner. As a result of the above operations, the generation AP 2, generation 3, and generation 4 APs that are dynamically linked to the server AP activation process 41 are prepared, so that the generation 2, generation 3 operating on the client computer 30 are prepared. Therefore, it is possible to respond to a processing request from the client process 31 corresponding to the generation 4 at any time.
[0057]
As described above, since a plurality of generations of APs can be executed simultaneously on a server side for a certain logical AP, a client computer uses the latest generation client process, and other client computers use the previous generation. Operation that uses is possible. Therefore, even if it is not possible to switch all the client processes 31 to the latest generation at a time, it becomes possible to simultaneously perform operations with the server computer in a form where old and new generations are mixed. If it is confirmed that all the client computers 30 that use the previous generation have disappeared, the previous generation AP on the server computer 40 is deleted, and the migration for the upgrade is completed. is there.
[0058]
【The invention's effect】
As described above, according to the application dynamic replacement method of the present invention, when performing version upgrade in a client-server type system, the generation management information is collectively managed on the server side. The problem of generation inconsistency is reduced, and the version upgrade can be performed smoothly without stopping the client-server system.
[0059]
Furthermore, since the generation management of the program in the client-server system is performed only by the server computer, there is an effect that the maintenance man-hour of the system is reduced.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a detailed block diagram of an embodiment of the present invention.
FIG. 3 is a detailed block diagram of an embodiment of the present invention.
FIG. 4 is a detailed block diagram of an embodiment of the present invention.
FIG. 5 is a block diagram showing a configuration of a conventional system.
[Explanation of symbols]
1 Client process main processing
2 AP calling means
3 Self-process name acquisition means
4 Request transmission means
5 sent messages
6 Request receiving means
7 Server AP main processing
8 Client generation determination means
9 Server AP calling means
10 Server logical AP storage area
11 Logical AP generation definition file
12 generation information table initialization means
13 generation update means
14 Client process generation information table
15 Server AP generation information table
16 AP management table initialization means
17 AP management table update means
18 Server AP management table
19 AP storage file
20 commands
30 client computers
31 Client process
40 server computer
41 Server AP startup process
50 network

Claims (7)

In the generation management method in which the generations of the application programs operating in cooperation with each other as the client and the server are operated in the same manner, the AP storage file storing the application program of the server to be managed by the generation and the client application program are 1 Client AP generation information table describing the above generations and process names corresponding to the generations, and server AP management table describing one or more generations of server application programs and server application program names corresponding to the generations When the own process is started up, the server application program described in the server AP management table is read from the AP storage file and dynamically linked to the own process to start up. P management table initializing means, AP management table updating means for performing the same processing as the AP management table initializing means after starting up its own process, request receiving means for receiving connection information from the client, Server AP calling means for calling an application program on the server associated with the generation of the client process name by combining the client AP generation information table and the server AP management table according to the client process name. A logical processing program consisting of a server processing unit that operates on the server, a local process name acquisition unit that acquires the name of the local process, and a group of application programs that operate in cooperation on the client and server. Oke By having a client processing unit which operates on the client includes a request transmitting means for transmitting message notifying the server processing unit including a logical application program name and said acquired process name, the Field of its own process A featured generation management system. Initial registration information for the logical application program consisting of one or more generations, a generation definition file that stores the latest generation additional information and update information for the already registered logical application program, and the logical application that has been initially registered For the program, the client information is reflected in the client AP generation information table, the server information is reflected in the server AP generation information table, and the addition information and the update information are the same as the generation information table initialization means. and the generation update means that the client AP generation information table do reflect to the server AP generation information table, the AP management te that reflect the contents of the server AP generation information table at the time of start-up of the server processing unit to the server AP management table Claim 1 generation management method, wherein further comprising said AP management table updating means for performing after launch the same processing as bull initializing means and the AP management table initialization means, to the server. The logical AP generation definition file includes, for the logical application program, a process name of the server processing unit that controls activation of an application program on a server belonging to the logical application program, a generation of the application program, and a client corresponding to each generation. The generation management system according to claim 1, further comprising: a server application program name corresponding to a client process name and a server application program entry name.   The server AP management table includes, for the logical application program, a name of an application program on a server belonging to the logical application program, a generation of the application program, an entry name of the application program, and an address of the entry name of the application program. The generation management system according to claim 1, wherein the generation management method is provided. The generation management system according to claim 1, wherein the server processing unit manages one or more logical application programs. The server processing unit includes the name of each logical application program managed by its own process and the number of application programs on the server belonging to each logical application program that are simultaneously started up. The generation management method according to claim 1, wherein an area of the server AP management table corresponding to the number of server APs is secured. The generation management system according to claim 1, wherein one or more server processing units exist on a server.

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