JPH04165455A - Automatic selection system for job execution system - Google Patents

Abstract

PURPOSE:To prevent an error from occurring and to lighten the load on a user by automatically selecting an executable computer system according to system resource information on each computer system, used peripheral device information of a job, and desired execution system information. CONSTITUTION:An execution system decision part 5 decides the executable computer system according to the used peripheral device information obtained by a used peripheral device information analysis part 3, the system resource information set on a secondary storage device 11, and the desired execution system information obtained by a desired execution system information analysis part 2, and a system state monitor part 7 monitors the operation states and load states of the respective computer systems which are held on a secondary storage device 19; and an attribute information control part 8 registers job attribute information on a secondary storage device 12 and a job start part 9 selects and starts a job that its computer system can execute according to the job attribute information. Consequently, the job can be executed by the computer system which is usable while the peripheral device is incorporated without fail.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic job execution system selection method, and particularly to an automatic job execution system selection method in a loosely coupled computer system.

[Conventional technology]

In conventional loosely coupled computer systems, desired execution system information (system number indicating the computer system on which the job is to be executed, or load balancing for effective use of system resources) is specified by an execution system specification job control statement when a job is submitted. job attribute information, including information indicating that it can be executed on any computer system if the job is desired, is held on a secondary storage device that can be shared among multiple computer systems, and each computer It has a spooling sharing function that enables job execution control between multiple computer systems and effective use of system resources by selecting and activating executable jobs on the system.

Furthermore, conventional loosely coupled computer systems maintain the operating status and load status of each computer system on a secondary storage device that can be shared among multiple computer systems, and also store system resource information for each computer system on a secondary storage device that can be shared among multiple computer systems. It is held on the main memory of the computer and on a secondary memory that can be shared among multiple computer systems.

(Problem to be solved by the invention!) In the conventional loosely coupled computer system described above, the job starting part of each computer system can be executed by its own computer system based only on the desired execution system information included in the job attribute information. Since the job is selected and started, the submitted job uses a peripheral device that is not installed or cannot be used in the computer system, and is set in the desired execution system information. This method has the disadvantage that if a computer system does not have a peripheral device installed in the computer system or a peripheral device used in the job is not installed or is in an unusable state, an error will occur if the computer system starts the job.

In addition, if the submitted job uses a peripheral device that is not installed or cannot be used in the computer system, and the desired execution system information indicates that the job is the target of load balancing, the computer system A computer system that was determined to be capable of executing the job because the computer system indicated that the job could be executed does not have the peripheral device installed in the job or is in an unusable state. The disadvantage is that an error will occur if the job is started on that computer system.

In order to avoid the above situation, the user should know the configuration information and status of each peripheral device in each computer system that makes up the loosely coupled computer system, and then use the job control statement specified by the execution system to This method has the disadvantage that it is necessary to specify a computer system in which the peripheral device is installed and available for use.

Furthermore, if a computer system is not running or has a heavy load, jobs set to be executed on that computer system may have to wait for a long time until the computer system recovers. It has the disadvantage of being stored away.

In view of the above points, an object of the present invention is to automatically create an executable computer system based on system resource information of each computer system that constitutes a loosely coupled computer system, information on peripheral devices used by a job, and desired execution system information. By making it possible to select the desired peripheral device, it is possible to prevent errors caused by executing a job on a computer system that does not have the peripheral device installed or is not available, reduce the burden on the user, and further identify An object of the present invention is to provide an automatic job execution system selection method that automatically causes a job to be executed by another computer system when an abnormality occurs in a computer system.

[Means for Solving Problem 11] The job execution system automatic selection method of the present invention shares job attribute information including execution system information specified by an execution system specification job control statement at the time of zip submission among multiple computer systems. Job execution can be controlled between multiple computer systems by selecting and starting jobs that can be executed on each computer system based on this job attribute information. It has a spooling sharing function that enables effective use of system resources, and maintains the operating status and load status of each computer system on a secondary storage device that can be shared among multiple computer systems. In a loosely coupled computer system in which resource information is held on a storage device for each computer system and on a secondary storage H that can be shared among multiple computer systems, the system resources are stored during startup and operation of the computer system. A system resource information management section that sets information in the system resource information area on the main memory and a secondary storage device that can be shared among multiple computer systems, and a used peripheral device information analysis section that analyzes peripheral devices used in jobs. , a desired execution system information analysis unit that analyzes the execution system specified job control statement and obtains desired execution system information; and peripheral device information in use obtained by the peripheral device information analysis unit in use, on the secondary storage device. an execution system determination unit that determines an executable computer system based on the set system resource information and the desired execution system information obtained by the desired execution system information analysis unit and obtains execution system information; and the secondary storage device. a system status monitoring unit that monitors the operating status and load status of each computer system maintained above and notifies the job attribute information management unit; and the execution system information obtained by the execution system determination unit, and the usage surroundings. Job attribute information including device information and the desired execution system information is registered on the secondary storage device, a job registration notification is sent to the job starting unit, and job attribute information including the device information and the desired execution system information is registered on the secondary storage device based on a notification from the system status monitoring unit. The job attribute information management unit updates and restores the execution system information included in the registered job attribute information, and the job attribute information is registered and managed on the secondary storage device by the job attribute information management unit. The job starting unit selects and starts a job that can be executed by the own computer system.

[Effect]

In the job execution system automatic selection method of the present invention, the system resource information management unit stores system resource information in the system resource information area on the main storage device and in the secondary storage area that can be shared among multiple computer systems during startup and operation of the computer system. Set on the storage device, the used peripheral device information analysis section analyzes the peripheral devices used by ZIP, the desired execution system information analysis section analyzes the execution system specified job control statement, obtains the desired execution system information, and determines the execution system. Information on peripheral devices in use obtained by the peripheral device information analysis section (4) System resource information set on the secondary storage device and desired execution system information obtained by the desired execution system information analysis section. The computer system is determined and the execution system information is obtained, and the system status monitoring unit monitors the operating status and load status of each computer system held on the secondary storage device and notifies the job attribute information management unit to determine the job attributes. The information management unit registers job attribute information including execution system information, usage peripheral device information, and desired execution system information obtained by the execution system determination unit on the secondary storage device, and sends a job registration notification to the job activation unit; The execution system information included in the job attribute information registered on the secondary storage device is updated and recovered based on the notification from the system status monitoring section, and the job starting section is registered on the secondary storage device and managed by the job attribute information management section. Select and launch a job that can be executed on the own computer system based on the job attribute information provided.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an automatic job execution system selection method according to an embodiment of the present invention. The job execution system automatic selection method of this embodiment includes a job description analysis unit 1, an execution system determination unit 5, a system resource information management unit 6, a system status monitoring unit 7, a job attribute information management unit 8, and a job execution system determination unit 5. Starting unit 9 and system resource information area 1
0, a system resource information table 11, a job attribute information management table 12, a system status table 19,
Its main parts are composed of a job input section 20 and an execution management section 21.

The job description analysis section 1 includes the desired execution system information analysis section 2.
, a peripheral device information analysis section 3, and a job description analysis section 4.

The job attribute information management table 12 is made up of entries that hold job attribute information 13 for each job that is waiting to be started or is being executed.

The job attribute information 13 includes desired execution system information 14,
It is configured to include executable system information 15, execution system information 16, used peripheral device information 17, and job status 18.

Furthermore, as shown in FIG. 2, a secondary storage device is shared among a plurality of computer systems to configure a loosely coupled computer system, and a system resource information table 11, a job attribute information management table 12, and a system status table are stored. 19 is held on a secondary storage device shared among multiple computer systems.

It is assumed that m (natural number) indicates the system number of the 0 computer system, and n (natural number) indicates the system number of any other computer system.

Figure 3 shows the execution system specified job control statement (sNEED).
FIG. 3 is a diagram showing the syntax of a sentence (text) and the meaning of SYSTEM parameters. Here, the SYSTEM parameter value k (natural number) indicates the system number of the computer system (desired execution system) that executes the job. Also, S.Y.
The STEM parameter value ANY indicates that the job may be executed on any computer system.

Referring to FIG. 4, the process of the desired execution system information analysis unit 2 includes a SYSTEM parameter presence/absence determination step 40.
1, a parameter value acquisition step 402, a system number or ANY determination step 403, and a parameter value desired execution system information setting step 404.

Referring to FIG. 5, the processing of the execution system determination unit 5 is as follows:
All executable system search and executable system information setting step 501, Executable system number determination step 502, Executable system information execution system information setting step 503, Desired execution system information specific system number determination step 504, Desired execution System information executable system information determination step 505, Hanamou execution system information execution system information setting step 506, executable system information execution system information setting step 50
7, a job deletion step 508, and a user notification step 509.

Referring to FIG. 6, the processing of the system status monitoring unit 7 is as follows:
Each computer system operation status acquisition step 601, system n operation determination step 602, system n overload state determination step 603, system n abnormality notification step 604, system n normal operation notification step 605
It consists of

Referring to FIG. 7, the processing of the job attribute information management unit 8 includes a notification acquisition step 701 and a notification type determination step 7.
02, job attribute information job attribute information management table registration step 703, job registration notification step 704, startup waiting job search step 705, execution system information setting step 706, startup waiting job search step 707, executable system information and execution system information resetting step 708.

Referring to FIG. 8, the processing of the job starting unit 9 includes a notification acquisition step 801, a notification type determination step 802,
0 Computer system load margin determination step 803, Executable job registration determination step 804, Local computer system executable job selection step 805, Selected job startup step 806, Job status "Executing" setting step 807, Multiplicity Counter 1 addition step 80
8, a job attribute information deletion step 809, and a multiplicity counter subtraction step 81.0.

FIG. 9 is a diagram showing an example of the contents of the job attribute information management table 12.

Next, the operation of the job execution system automatic selection method of this embodiment configured as described above will be explained.

The system resource information management unit 6 stores the system resource information of the own computer system in the system resource information area 10 on the main storage device and the plurality of It is set and updated in the area for the own computer system in the system resource information table 11 on the secondary storage device shared between computer systems.

When a job is submitted to the self-funding

The job description analysis section 1 inputs the job description read by the job input section 2o to the desired execution system information analysis section 2.
It is analyzed using the used peripheral device information analysis section 3 and other job description analysis section 4.

The desired execution system information analysis unit 2 analyzes the execution system specified job control statement (S NEED statement) in the job description. Specifically, if the SYSTEM parameter is specified in the execution system specification job control statement (step 401), the desired execution system information analysis unit 2 obtains the parameter value (step 402) and enters the system number or AN
Check the validity of the parameter value based on whether it is Y (step 403), and set the parameter value in the desired execution system information 14 in the job attribute information 13 (
Step 4.04>.

The used peripheral device information analysis unit 3 analyzes the file definition statement and the peripheral device allocation request statement in the job description, obtains used peripheral device information such as the device type of the peripheral device necessary for job execution, and obtains job attribute information. Peripheral device information used in 13
Set to 7.

The other job description analysis unit 4 analyzes the job description excluding execution system specification job control statements, file definition statements, and peripheral device allocation request statements.

After analyzing all the job descriptions, the job description analysis unit 1 will:
The execution system determination unit 5 is called.

The execution system determination unit 5 sets executable system information 15 and execution system information 16 in the job attribute information 13. Specifically, the execution system determination unit 5 first determines whether all the peripheral devices necessary for executing the job are configured and usable based on the used peripheral device information 17 and the system resource information in the system resource information table 11. , all computer systems that can execute the job are searched for, and their system numbers are set in the executable system information 15 (step 501).

Next, the execution system determining unit 5 determines the number of executable computer systems (step 502).

If there is one executable computer system, the execution system determination unit 5 sets the system number of the searched computer system in the execution system information 16 (step 503
), if there is a plurality of executable computer systems, the execution system determination unit 5 determines whether a specific system number or ANY is set in the desired execution system information 14 (step 504). If the system number is set, the execution system determining unit 5 determines whether the desired execution system information 14 is included in the executable system information 15 (step 505). If the desired execution system information 14 is included in the executable system information 15, the execution system determination unit 5 sets the desired execution system information 14 in the execution system information 16 (step 506); if the desired execution system information 14 is not included, it is set as executable system information 15. All of the system information 15 is set in the execution system information 16 (step 507), and is subject to load distribution. In step 504, if ANY is set in the desired execution system information 14, the execution system determination unit 5 determines that the executable system information 1
Step 5: Set all of 5 to execution system information 16.
07), subject to load balancing. In step 502, if there is no executable computer system, the execution system determination unit 5 deletes the job as an error (step 508), and notifies the user to that effect (step 508).
09).

When the job description analysis unit 1 completes the job attribute information 13 by setting the executable system information 15 and the execution system information 16, it sends a job input notification to the job attribute information management unit 8 and passes the job attribute information 13 thereto.

The system status monitoring unit 7 periodically obtains the operating status of each computer system from the system status table 19 (step 601), and if computer system n is not operating (
Step 602), or if computer system n is overloaded (step 603), a system n abnormality occurrence notification is sent to the job attribute information management unit 8 (step 604).
), - On the other hand, if the computer system n is operating and there is sufficient load, the system status monitoring unit 7
A normal operation notification is sent to the job attribute information management section 8 (step 605).

Upon receiving the notification (step 701), the job attribute information management unit 8 determines the type of notification (step 702).

If it is a job input notification, the job attribute information management unit 8
The job attribute information 13 is stored in the job attribute information management table 12.
(Step 703), and sends a job registration notification to the job starting unit 9 (Step 704).

If it is a system n abnormality occurrence notification, the job attribute information management unit 8 sets one or more system numbers including the system number n in the execution system information 16 from the job attribute information management table [2] and executes the executable system information 15. Step 705) to search for all job attribute information 111113 in which multiple system numbers including system number n are set in , and job status 18 is "waiting to start".
The executable system information 15 excluding the system number n in the searched job attribute information 13 is set as the execution system information 16 (step 706) 6 Next, the job attribute information management unit 8 sets the changed execution system information 16. 3 in the job attribute information management table 12 (step 703), and the job registration notification is sent to the job starting unit 9.
(step 704).

If it is a system n normal operation notification, the job attribute information management unit 8 determines that multiple system numbers including the system number n are set in the executable system information *15 from the job attribute information management table 12, and the job status 18 is To search all the job attribute information 13 that is "waiting to start" (Step 707), call the execution system determination unit 5 and use its function to re-read the executable system information 15 and execution system information 16 in the job attribute information 13. settings (step 708). Next, the job attribute information management unit 8 registers the job attribute information module 3 including the reset executable system information 15 and execution system information 16 in the job attribute information management table 12 (Step 703), and notifies the job registration. is sent to the job starting unit 9 (step 704).

When the job starting section 9 receives the notification, the job starting section 9 receives the notification.

1801) - Determine the type of notification (step 802)
, if it is a job registration notification, the job starting unit 9 obtains the load status of the own computer system from the internal table and determines that there is a margin in the load status of the own computer system (step 803);
Furthermore, jobs that can be executed on the own computer system, that is, jobs whose execution system information 16 includes the system number (m) of the own computer system and whose job status 18 is "waiting to start" are registered in the job attribute information management table 12. If so (step 804), an appropriate job is selected from among them (step 805).Next, the job starting unit 9 starts the selected job and executes it in the execution management unit 2.
1 (Step 806), changes the job status 18 of the started job to "Executing" (Step 807), and sets the multiplicity counter in the internal table to 1.
(step 808).

In an example of the contents of the job attribute information management table 12 shown in FIG. 9, job 5 b, job d, and job e are selected for job activation. Here, it is assumed that job b has been selected and started.

Further, upon receiving the job completion notification from the execution management section 21 (step 802), the job starting section 9 transfers the job attribute information 13 of the job to the job attribute information management table 12.
More specifically, step 809) decrements the multiplicity counter in the internal table by 1 (step 810), and the following steps 803 to 808 are performed in the same manner.

(Effects of the Invention) As explained above, the present invention automatically executes the execution system based on the system resource information of each computer system configuring the loosely coupled computer system, the peripheral device information used by the job, and the desired execution system information during job analysis. The following effects can be achieved by selectively selecting:

■ Even if a computer system does not have a peripheral device installed, or even if a job is submitted that uses an unusable peripheral device, the peripheral device will always be installed and available. Jobs can be executed on a computer system.

■ Even if users do not know the system resource information of each computer system that makes up a loosely coupled computer system, they can
A loosely coupled computer system can be used effectively.

■ Even if a computer system is not running or has a heavy load, the job attribute information of the job set to be executed on that computer system can be automatically changed so that it can be executed on other executable computer systems. can be executed.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an automatic job execution system selection method according to an embodiment of the present invention, and FIG. 2 shows an example of a loosely coupled computer system to which the automatic job execution system selection method of this embodiment is applied. Figure 3 shows the syntax of the execution system specified job control statement and the S
4 is a flowchart showing the processing of the desired execution system information analysis section in FIG. 1; FIG. 5 is a flowchart showing the processing of the execution system determination section in FIG. 1; 1 is a flowchart showing the processing of the system status monitoring section in FIG. 1, FIG. 7 is a flowchart showing the processing of the job attribute information management section in FIG. Flowchart showing the process. FIG. 9 is a diagram showing an example of the contents of the job attribute information management table in FIG. In the figure, 1... Job description analysis section, 2... Desired execution system information analysis section, 3... Used peripheral device information analysis section, 4... Other job description analysis section, 5... Execution system Judgment unit, 6... System resource information management unit, 7... System status monitoring unit, 8... Job attribute information management unit, 9... Job starting unit, 10... System resource information area, ]1 ... System resource information table, 12... Job attribute information management table, ]3... Job attribute information, 14... Desired execution system information, 15... Executable system information, 16... Execution system information, 17... Peripheral device information in use, 18.. Job status, 19.. System status table, 20.. Job input section, 21.. Execution management section.

Claims (1)

[Claims] Job attribute information including execution system information specified by an execution system specification job control statement when a job is submitted is held in a secondary storage device that can be shared among multiple computer systems, and this job attribute information is stored. It has a spooling sharing function that enables job execution control between multiple computer systems by selecting and starting jobs that can be executed on each computer system based on the system, and making effective use of system resources. The operating status and load status of a computer system are maintained on a secondary storage device that can be shared among multiple computer systems, and the system resource information of each computer system is maintained on the main storage device of each computer system and between multiple computer systems. In a loosely coupled computer system, the system resource information is stored in the system resource information area on the main storage and between multiple computer systems during startup and operation of the computer system. A system resource information management unit that configures settings on a shared secondary storage device, a used peripheral device information analysis unit that analyzes peripheral devices used in a job, and a peripheral device information analysis unit that analyzes the execution system specified job control statement to obtain desired execution system information. Desired execution system information analysis section; Used peripheral device information obtained by the used peripheral device information analysis section, system resource information set on the secondary storage device, and desired execution system information analysis section obtained by the desired execution system information analysis section. an execution system determination unit that determines an executable computer system based on the execution system information and obtains execution system information; and an execution system determination unit that determines an executable computer system based on the execution system information, and monitors the operating status and load status of each computer system held on the secondary storage device and executes the job. A system status monitoring unit that notifies the attribute information management unit, and job attribute information including the execution system information, the used peripheral device information, and the desired execution system information obtained by the execution system determination unit, on the secondary storage device. the job attribute information that is registered in the secondary storage device, sends a job registration notification to the job starting unit, and updates and restores the execution system information included in the job attribute information registered on the secondary storage device based on the notification from the system status monitoring unit; a management unit; and a job activation unit that selects and activates a job executable on its own computer system based on job attribute information registered and managed on the secondary storage device by the job attribute information management unit. A job execution system automatic selection method characterized by: