JPS6386059A - Processing system for change of work station constitution - Google Patents

Abstract

PURPOSE:To ensure the dynamic change of definition for change and addition of constitution of a work station WS without stopping the working of a system, by using a replacement map to control the information on presence/absence of a change, etc., of the WS constitution. CONSTITUTION:The information on presence/absence of a change, etc., of the constitution of a WS is controlled by a replacement map 20. When a WS connection request is produced, the presence/absence of a change is checked for a block having the information on the WS. If the block has a change, this change is reflected on a main memory. Thus it is possible to carry out freely the change, addition and deletion of the WS information on an external memory device 14 even in an on-line service mode. Plural pieces of WS information are divided into groups and stored in each block 16 serving as an input/output unit of the device 14. Thus a single block is read out to a main memory loop 24 for pool control of the definition information on plural WS.

Description

[Detailed Description of the Invention] [Summary] A method for grouping and managing blocks of workstation information in an online processing system that communicates data with workstations based on predefined workstation information. This makes it possible to reduce the number of accesses to the external storage device, as well as an update map that remembers when a block has been updated.

A means is provided to control dynamic changes to workstation information, thereby making it possible to dynamically change and add workstations without stopping the system while online services are in operation. .

[Industrial application field]

The present invention relates to a workstation information management processing method in a general-purpose online processing system.

In particular, the present invention relates to a workstation configuration change processing method that allows definitions to be dynamically changed without stopping the system when changing or adding a workstation during online operation.

[Conventional technology]

FIG. 5 is an explanatory diagram of the conventional method.

In FIG. 5, 26 is a WS table that stores connection information and operational information regarding workstations, 40 is a workstation, and 41 is a correspondence paving rt (CCP).
, 42 is a host processing device having a CPU and a memory IJ, and 43 is a data communication management unit that manages data communication with the workstation.

Reference numeral 44 denotes an application processing unit 945 that executes business processing, and a WS related to terminal control definition information stored in an external storage device.
Information 46 represents a directory management unit that manages the WS information 45.

The workstation (WS) 40 is managed as a logical destination of a terminal with which the application processing section 44 communicates via the data communication management section 43.

When there is a change or addition to the configuration of the workstation 40, the WS information 45 regarding the configuration definition is registered in advance on the external storage device by the directory management unit 46 through so-called batch processing.

The data communication management unit 43 places emphasis on performance of transaction processing, and manages and controls a part of the WS information 45 in a pool on the main memory. In other words, during the online service, the WS information 45 exists partially overlappingly on the external storage device and the main memory. Therefore, if the WS information 45 on the external storage device is updated by batch processing during online service, there will be a conflict with the information pooled on the main storage. Therefore, it has conventionally been necessary to prohibit changes to workstation definitions while online services are in operation.

(Problem to be solved by the invention) Conventionally, it has been prohibited to change the definition of a workstation while an online service is in operation. However, in systems that operate 24 hours a day, it is undesirable to stop the system even temporarily, so it is necessary to dynamically change the definition of 5 workstations while the online service continues. It is desirable to be able to do so.

The above problem can be solved if pool management on the main memory is discontinued and the WS information 45 is always newly read from the external storage device when a connection request is made from the workstation 40, but in this case.

Since input/output operations are always required, there is a problem in that performance deteriorates.

The present invention aims to solve the above-mentioned problems, and provides a workstation configuration change processing method that enables configuration changes and additions of workstations during online service and reduces the number of accesses to external storage devices. It is an object.

[Means for solving problems]

FIG. 1 shows an example of the basic configuration of the present invention.

In FIG. 1, 10 is a WS definition body written in an environment definition language for workstations, 11 is a batch processing space established for batch processing jobs, and 12 is a W
A WS information update registration unit that registers the S definition body 10, 13 is a W
An update notification unit that notifies an online processing job of update registration of S information.

14 is an external storage device such as a magnetic disk device, 15 is a member management list that manages blocks in which multiple pieces of WS information are stored, 16 is a block that serves as an input/output scale, and 17 is a parameter that has update information to be notified. Represents a packet.

In addition, 18 is an online processing space established for the job of managing data communication in online services;
Reference numeral 19 denotes an update knob setting unit that reflects the information of the parameter packet 17 on the update map.

Reference numeral 20 indicates an update map that stores updated block position information, 21 indicates an update level information section in the update map 20, and 22 indicates a bitmap corresponding to a block managed in the member management list, and a bitmap indicating the updated block position. Knob section, 23 is a member management list on the main memory corresponding to the member management list 15, 24 is a main memory pool, 25 is a block read into the main memory, 26 is a WS that has connection information and operational information regarding the workstation. 27 is a W and S information setting section that sets necessary information in the WS table 26 when a workstation connection request is made; 28 is an update check section that checks whether a block has been updated by the update map 20; 29 is a corresponding A block input section 30 inputs block information from the external storage device 14 when a block is updated, and 30 represents a WS table setting section that creates a WS table 26 from the input block.

When there are changes to the workstation configuration, etc.

By inputting the WS definition body 10 which is the definition information.

The WS information update registration unit 12 searches the member management list 15 of the external storage device 14, searches for a block 16 having the relevant WS information, and updates the block 16. In case 1 of the present invention, for example, each WS information is classified by its WS name, 1
Up to 40 pieces of WS information can be set in a block.

Index information for block position information and WS information is managed by member management 7115.

In order to reduce the number of accesses to the external storage device 14 during online service, member management list 1 in the external storage device 14 is created at the start of the online service.
5 is copied onto the main memory as the member management list 23,
The WS information of the block 16 is pool-managed in the main memory pool 24.

When there is a change in the WS information in the external storage device 14 during online service, the update notification unit 13 creates a parameter packet 17 and sends a notification to the update map setting unit through a predetermined supervisor call or the like. Notify 19. The update map setting unit 19 reflects the contents of the parameter packet 17 on the update map 20. Furthermore, at that time.

Workstations that are bound to the system.

WS table 26 created using definition information before change
will continue to be managed by

The WS information updated on the external storage device 14 is reflected in the main memory when there is a request to connect the workstation and the system. When there is a workstation connection request, the WS information setting unit 27 is called. In the WS information setting section 27, the update check section 28 first examines the update map 20 and checks the update level information section 21. As a result of checking the update level information section 21, if it is recognized that there has been a change not only to the program 16 but also to the member management list 15, the member management list 15
is read out and the member management list 23 in the main memory is updated.

Next, the update check unit 28 checks the W specified at the time of the join request.
The member management list 23 is searched for a block having WS information corresponding to the S name, and the bitmap section 22 of the update map 20 is used to check whether or not the block has been changed. If there are any changes.

The block input unit 29 reads the corresponding block 16 in the external storage device 14 into the main memory pool 24,
If necessary, the address is set in the corresponding entry in the member management 7iJ23.

The WS table setting unit 30 extracts necessary WS information from the block 25 newly prepared in the main memory pool 24 and creates a WS table 26. As a result, the workstation will be serviced using the new WS information after the change.

[Effect]

Information regarding the presence or absence of changes in the configuration of a work stage is managed by the update map 20, and when a workstation connection request is made, the WS related to the workstation is
Blocks containing information are checked for changes, and if they have been changed.

reflected on main memory. Therefore, even during online service, the WS information on the external storage device 14 can be freely changed, added to, or deleted. When changing the ws1 report, etc., the work stage gin that is in the combined state remains 1! The service will continue, so
This does not impair service to users.

A plurality of pieces of WS information are grouped and stored in the external storage device 14.
Since each block 16 serves as an input/output unit in , the number of accesses to the external storage device 14 at the time of initial setting or connection request is reduced. That is, when one block is read onto the main memory Boolean 24, definition information regarding a plurality of workstations is stored therein, so that information is pool-managed.

When referring to other WS information in the same block, Ilo to the external storage bags ra and 14 can be omitted.

In particular, when WS information is managed on a so-called non-resident basis to save memory, the number of accesses can be significantly reduced.

〔Example〕

FIG. 2 is an explanatory diagram of block management in an embodiment of the present invention, FIG. 3 is an explanatory diagram of processing in an embodiment of the present invention, and FIG. 4 is an explanatory diagram of block management in an embodiment of the present invention.
S? FIG. 3 is a diagram illustrating an update in the resident method of #information.

For example, the WS information is managed by being arranged in the order of the WS names that are uniquely assigned in advance by the system.

The member management list 15 has each block 1 in each entry.
W of the final WS information among the WS information stored in 6
It has the S name and pointer information for the block 16. For example, in Figure 2 (a).

The WS name of the final WS information of block #0 is An,
In the first entry of the member management list 15.

The WS name rAnJ and the address for block #O are stored.

Regarding changes to the structure of Work Stage Gin.

If the WS information is changed within each block, the block is simply updated, and the member management list 15 is normally not changed. but.

When the block 16 into which the WS information should be inserted overflows due to the addition of a workstation, etc., and it becomes necessary to move the WS information between blocks, the member management 7
It is necessary to change fJ15. In the example of change shown in Figure 2, in state (A), for block #0, the WS name is “A”.
There is addition of WS information of "O", and the final WS of block #O
The name changes from rAnJ to rAmJ, so Figure 2 (a)
like.

The member management list 15 has been changed.

In this embodiment, update level management is performed as follows, for example. There is no change in member management list 15, block 1
If only 6 has been updated, the update level is set to "1". If there is also a change in the member management list 15, the update level will be set to "2" due to an abnormality, etc.
When all WS information is to be deleted, the update level is set to "3". By managing the update level, it is possible to localize the WS information invalidation range on the main memory. Note that by providing a margin in advance in each block 16 and increasing the unused area.

Even when adding WS information, changes to the member management 7yj15 can be reduced.

Next, an example of the processing in the bunch processing space 11 shown in FIG. 1 will be explained according to ① to @ shown in FIG. 3(A).

■ When it is necessary to change the workstation configuration.

Enter the WS definition information.

■ Search for member management 7fl15 by WS name.

Update the WS information in the corresponding block.

■ Determine whether or not updating of the member management list 15 is necessary. If necessary, control is transferred to process (2); if not, control is transferred to process (2).

■ Set the update level to "1" and transfer control to process ■. ■ Update the member management list 15.

■ Set the update level to "2".

■ Check whether online services are available. If no online service is currently being performed, no WS information exists in the main memory Boolean 24, so the process ends.

■ During online service, the changed information is reflected in the main memory, so it is stored in the system common area.

A parameter packet 17 is created. In the parameter packet 17, update level information and update block position information are set.

■ Provide update notification through a predetermined supervisor call, etc.

[Phase] In the online processing section, update map setting section 1
9, the contents of the parameter packet 17.

It is reflected in the update map 20.

If a workstation join request is made, the first
By the WS information setting unit 27 shown in the figure.

For example, processing is performed as shown in FIG. 3(a). The following will explain the processes 1 to 0 shown in FIG. 3(a).

(2) Check whether the update level is "3" using the update level information section 21 of the update map 20. If the update level is not "3", control is transferred to process (2).

- If the update level is "3", all the WS information is invalid, so the requester is notified that the combination is not possible and the process is terminated.

■ Check whether the update level is "2".

If the update level is not "2", control is transferred to process (2).

■ If the update level is "2", member management list 15
Since there has been a change in the contents of the new member management list 15,
It is read out to the member management list 23 on the main memory. At that time, the invalid block information that has already been expanded to the above tα is cleared.

■ The member management list 15 has been reflected in the main memory.

Change the update level from "2" to "1".

■ Determine whether the update level is "1".

If the update level is rOJ and is not "1",
Since there is no change, control is transferred to process 0.

■ Find which block contains the WS information using the member management list 15 based on the WS name for which the join request was made. Then, for that block, the corresponding update bit in the bitmap section 22 of the update map 20 is searched.

(2) Determine whether the update bit is 0N10FF, and if it is OFF, there is no change, so control is transferred to process 0.

■ If the update bit is ON, as necessary.

A block area is secured in the main memory pool 24, and re-input processing is performed for that block. After re-inputting, the update bit in the bitmap section 22 is turned OFF. All update bits in the bitmap section 22 are OFF
If so, the update level is changed from rLJ to rOJ.

[Stock] Extracts the corresponding WS information from the block information and sets it in the WS table 26. Thereafter, workstation connection processing is performed according to this WS table 26.

(2) If the corresponding block has not been updated, it is determined whether the address of the corresponding block in the member management book 23 is 0 or not. If the address is not 0, the block exists in the main memory Boolean 24 and control is transferred to process [phase].

■ If the block address is 0, main memory Boolean 2
4, and input the block from the external storage device 14. and.

The above tt address of that block is sent to the member management 7s2.
3 and transfers control to process O.

For example, for each system that provides online services, W
There are 5 options to choose between whether to manage S information permanently or non-residently. In a non-resident management system, the WS table 26 is created at the time of a join request;
In systems that perform resident management, during initial service settings,
Basically all WS tables 26 are created. Therefore, in this case, block 25 in main memory Boolean 24 is.

- Exists only temporarily.

In the case of resident management, when the updated new block information is reflected in the WS table 26, if the workstations are being combined.

For example, processing is performed as shown in FIG. 4(A). That is.

The WS information is divided in advance into information required for combination and information required for operation, and the combination information has already been combined and there is no reference.

It is unconditionally reflected in the WS table 26. For disconnected information, secure a work area and store it temporarily (
, the disconnection information is reflected in the WS table 26 at the time of the next connection, as shown in FIG. 4(a). Since the amount of combined information is larger than the operational information, by dividing and managing it in this way, the required work area can be reduced.

If the updated WS information has not yet been reflected in the main memory and there is a change in the configuration of another workstation, the updates will overlap. However, when the contents of the parameter packet 17 are reflected in the update map 20, the latest state can be reflected in the main memory without contradiction by processing such as performing a logical sum of bits. That is, when the update level is "1", if there is an update with the update level "1".

All that is required is to add the change position to the focus map section 22.

If the update levels are different, the one with the higher update level is given priority. For example, if the update level is "2" and there is an update with update level "1", change the update level to "2".
Leave it as is.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to dynamically change the configuration of a workstation without stopping online services.

Furthermore, by blocking the WS information and managing the WS information using the main memory pool, it is possible to reduce the number of accesses to the external storage device and improve performance.

[Brief explanation of the drawing]

Fig. 1 is an example of the basic configuration of the present invention, Fig. 2 is an explanatory diagram of block management in an embodiment of the present invention, Fig. 3 is an explanatory diagram of processing in an embodiment of the present invention, and Fig. 4 is the residence of WS information. FIG. 5 is an explanatory diagram of the conventional method. In the figure, 10 is a WS definition body, 11 is a batch processing space, and 12
14 is an external storage device, and 15 is a member management list. 16 is a block, 17 is a parameter packet, 18 is an online processing space, 19 is an update map setting section, 20 is an update map, and 21 is an update level information section. 22 is a bitmap section, 23 is a member management list, 24 is a main memory pool, 25 is a block, 26 is a WS table, 2
7 represents a WS information setting section, 28 an update check section, 29 a block input section, and 30 a WS table setting section.

Claims (1)

[Claims] In an online processing system that processes connection requests and communication requests with workstations based on each workstation information predefined by a workstation definition body (10), information on a plurality of workstations is externally processed. A workstation information storage means (14) that is stored and stored in each block (16) serving as an input/output unit in a storage device, and a main computer that stores all or part of the information stored in the workstation information storage means (14). A main memory pool (24) to be stored in the memory, and an update map (20) for workstations in which updated block position information is set when a block in the workstation information storage means (14) is updated. When requesting to join the above update map (20
), and when it is recognized that a block containing workstation information regarding the workstation has been updated, the contents of the block are read out from the workstation information storage means (14) and stored in the main memory pool. (24) Workstation information setting means (27) for setting the workstation configuration.