JP2575761B2 - Job management method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Summary] The present invention relates to a job management method in a case where it is necessary to change the contents of a job in a waiting state after the job is submitted. A job management method for changing the job contents in a waiting state after the job is input, with the aim of continuing the qualification of the job to be replaced and eliminating unnecessary processing and charging for the job to be replaced. , The job to be submitted is a resubmission job for changing the content of the already-substituted job to be replaced, and the resubmission generated by a job control statement to which a dedicated control statement for recognizing the job to be replaced has been added. Submits a job to the processing system, and if the submitted job is a resubmitted job and there is a job To continue with qualifications of the replacement target job to input job configured to execute wait state.

[Industrial applications]

According to the present invention, when a job needs to be changed after job submission, such as job control statements (JCL) and SYSIN data (data included in the flow of an input job) in the execution waiting state, the job needs to be changed. Regarding management methods.

[Conventional technology]

In order to process a large number of jobs, the job processing system temporarily puts each input job in an execution queue and puts it in a waiting state, and processes the input jobs in order according to an order determined by a priority or the like. .

FIG. 5 shows a conventional job management system in the form of a job flow. 21 _1, 21 _2, etc. In the figure the job, contents of each job is generated by the JCL and SYSIN data.

Reference numeral 22 denotes an input processing routine for performing job reading processing.

An execution queue 23 stores job management information including an identifier of each job waiting for execution of a process. Each job is
Common types are classified into classes and arranged according to the magnitude of the extraction condition. For example, JA ₁ and JA ₂ are Class A
In the job extraction condition of the job EN ₁ is the largest, the process is performed in descending order of extraction conditions. The condition for taking out a new job is the smallest, and is registered at the end of each job.

Reference numeral 24 denotes an execution processing routine which extracts a job having the highest extraction condition from a predetermined job class and sequentially executes the job steps.

Reference numeral 25 denotes an output processing routine, which performs output processing of a job execution result.

Reference numeral 26 denotes a purge processing routine which releases all resources such as a spool space and an execution queue space used by the completed job, and purges the job from the processing system.

27 is a spool (SPOOL: Simultaneous Peripheral Outp)
ut On Line), JCL and SYSIN data of each job are stored.

In these routines, an input processing routine 22, an execution queue 23, an output routine 24, and a purge processing routine
Reference numeral 25 forms an input subsystem (JES: JOB Entry Subsystem).

In this configuration, when one job (to 21 ₃₎ is turned to the input subsystem JES, input processing routine 22 performs reading of the job 21 ₃ stores the JCL and SYSIN data in the spool 27, given execution qualifications such as priority and execution order job 21 _3, and registers the job management information to the execution queue 23. Input job 21 ₃ of the class is placed in the place of A if job class A. The job management information includes an identifier of the job 21 ₃ of the processing system.

Executing processing routine 24 is taken out of the execution queue 23 the most of the extraction conditions large (for example the highest priority) (a 21 ₁₎ job from the job class of instructions of the start program, the execution of the job with job 21 after the allocation of resources of the input and output devices such as required, from the spool 27 takes out the job 21 ₁ of JCL and SYSIN data executes the job step in order.

When the processing of the job 21 ₁ is completed, output processing routine 25
Output data is written. The output data is temporarily stored in the spool 27, and the job management information is put in an output queue (not shown), and is sequentially taken out and written out to a predetermined output device.

When all output processing of job 21 ₁ is completed, job 2
1 ₁ the spool space and run queue has been used, and releases any resources of each space and the output queue, purging the job 21 ₁ from the processing system.

By the way, when one job (referred to as JOB _{3 in} FIG. 6 (A)) is submitted and is in the execution waiting state in the execution queue 23, the JCL and SYSIN data of JOB ₃ may need to be changed. Occurs. However, the content of the job cannot be changed after the job is input until the job ends. Therefore, JOB ₃ is canceled, the job whose JCL and SYSIN data have been changed (referred to as JOB ₃ ′) is resubmitted, and the processing of JOB ₃ ′ is executed from the beginning.

In this case, even if the extraction condition of the replacement target Job ₃ is at the third position as shown in FIG. 6A, (a), the re-input Job ₃ ′ has the priority and the priority assigned to Job _3. Execution qualifications such as execution order cannot be continued,
A new job is placed at the end of the execution queue as shown in FIG. 6A (b).

For the re-input JOB ₃ ′, the above-described input processing to purge processing is performed as shown in FIG. 6B (a). On the other hand, the job is not executed for the job ₃ to be replaced, but as shown in (b) of FIG. 6B, an output process indicating that the job ₃ has been canceled, and a processing system for the job ₃ Purge processing is performed to release the pressure.

[Problems to be solved by the invention]

With the conventional job management method, if the JCL or SYSIN data is changed while the submitted job is waiting to be executed, the job to be replaced is purged from the system before execution, and user billing is wasted. In addition, there is a problem that the execution qualification assigned from the system during the execution waiting state is treated as a new job by re-input, and the execution qualification of the replacement target job cannot be continued.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a job management method improved so that a re-submission job can continue its execution qualification in a processing system for a replacement target job and eliminate wasteful processing and charging for the replacement target job. .

[Means for solving the problem]

The solution adopted by the present invention will be described with reference to FIG. FIG. 1 is an explanatory diagram of the basic configuration of the present invention.

In processing 1, the JCL that recognizes that the job to be submitted is a resubmission job for changing the content of the replacement target job that has already been submitted, and adds a dedicated control statement that recognizes the replacement target job The re-submission job generated in step is submitted.

In the process 2, the JCL of the input job is interpreted, and it is determined whether or not the input job is a reinput job for changing the content of the job to be replaced which has already been input. In some cases, if the replacement target job is in an execution waiting state, a process is performed in which the resubmission job continues its execution qualification in the processing system for the replacement target job to be in an execution waiting state.

(Operation)

If it is necessary to change the content of the job to be replaced earlier, it is recognized that the job to be submitted is a re-submission job for changing the content of the job to be replaced, and The re-submission job generated by the JCL to which the exclusive control statement for recognizing the job is added is submitted to the processing system (Process 1).

The processing system interprets the JCL of the submitted job, determines whether the submitted job is a resubmitted job for changing the content of the already-submitted job to be replaced, and if the job is a resubmitted job. When the replacement target job is in the execution waiting state, the resubmission job keeps the execution qualification of the replacement target job in the processing system and enters the execution waiting state.

Thereafter, in the same manner as in the conventional method, the re-execution job execution, output, and purge processes are executed in place of the replacement target job. Therefore, execution of the job to be replaced
Each processing of output and purge ends without being executed, and is purged from the processing system.

As described above, if it is necessary to change the job content after the job is submitted, such as a change in the job operation or the execution resource, the job is set as a job to be replaced, and the job to be re-submitted to the re-submission job in the execution waiting state. Continuation of the execution qualification in the processing system, the requalification job can maintain the execution qualification of the job to be replaced, and its contents can be easily changed. In addition, this makes it possible to edit a job in a wide range. Further, since the job to be replaced is purged from the processing system without executing the subsequent processing, it is possible to eliminate waste of processing and charging for the job to be replaced.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS. FIG. 2 is an explanatory diagram of the overall flow of job processing in one embodiment of the present invention, FIG. 3 is an explanatory diagram of an execution queue of the embodiment, and FIG. 4 is a process of a JCL interpretation control routine of the embodiment. It is a flowchart.

(A) Overall Flow of Job Processing In FIG. 2, 11 ₁ , 11 _2, etc. are jobs, and the contents of each job are generated by JCL and SYSIN data. If the job is a resubmission job for changing the contents of the replacement target job, a new control statement for recognizing the resubmission job and the replacement target job is newly added to the JCL.

For example, the following control statement is used as the dedicated control statement.

Example of dedicated control statement for resubmitted job The first "/ * RELOCATE" indicates that the submitted job is a resubmitted job. Next “JOBID = JOBnnnn”
Indicates that the job ID (JOBID: identifier in the processing system) is JOBn
nnn (nnnn is an identification number). “LOBN = job name” (JOBN) is a name specifically shown on the right side. The job to be replaced is designated by both JOBID and JOBN.

Note that the instruction format of the dedicated control statement has a different format corresponding to the job management format of the system.

An input processing routine 12 is an input control routine 121 and J
It comprises a CL interpretation control routine 122, which performs job reading, registration and resubmission job processing.

The input control routine 121 reads a job and analyzes a job control statement. The JCL interpretation control routine 122
Is interpreted, and registration processing and re-submission job processing of each job are performed.

An execution queue 13 stores job management information of each job waiting to be executed.

FIG. 3 shows an example of the execution queue.
Job class A is the job JA ₁ ~JA ₄ is the execution wait job class B of interest job JB ₁ ~JB ₄ is the execution wait, similar to the job JQ ₁ to job classes Q by less
And JQ ₂ are waiting for execution. Job JB ₃ is to be the replacement target job reintroduction job as described in the section next operation explanation. In each class, the retrieval condition of the first (leftmost) job is the largest, and processing is executed in descending order of the retrieval condition. Extraction conditions of the new job is the smallest, as illustrated by the job JB ₅ job class B, are registered at the end (right end) of the job class.

Reference numeral 14 denotes an execution processing routine for extracting a job having the highest extraction condition from a predetermined job class and sequentially executing the job steps.

Reference numeral 15 denotes an output processing routine which performs output processing of a job execution result.

Reference numeral 16 denotes a purge processing routine which releases all resources such as a spool space and an execution queue space used by the processed job and purges the job from the processing system.

Reference numeral 17 denotes a spool which stores JCL and SYSIN data of each job.

In these routines, the input processing routine 12, the execution queue 13, the output routine 15, and the purge routine 16 constitute an input subsystem (JES).

(B) Operation of Embodiment The operation of the embodiment will be described with reference to FIGS. 2 and 3. FIG.

When one job is submitted to the input subsystem JES, the input control routine 121 of the input processing routine 12 reads the job, analyzes the job control statement, and stores the JCL and SYSIN data in the spool 17. At the same time, the JCL is sent to the JCL interpretation control routine 122.

Next, the contents of the processing performed by the JCL interpretation control routine 122 will be described according to the steps with reference to the processing flowchart of FIG.

Step S ₁ interprets JCL, the presence or absence of a dedicated control statements for cycling job (supra "/ * RELOCATE", re for changing the contents of the job-on job is applied first (interchange target job) It determines whether the charged job. when dedicated control statements for cycling there is no job, the process of step S ₅ as a normal job.

When there is a dedicated control statements for cycling job in step S ₂ Step S _1, determines that the reintroduction job, from system identifier and a job name of replacement target job that instructs the dedicated control statements, execution wait It is determined whether or not a desired job to be replaced exists among the jobs in. If not, it proceeds to processing in step S ₅ as a normal job.

Step S ₃ If replacement target job at step S ₂ exists, merge (merge) the reintroduction job execution qualified replacement target job, replacement target job execution qualifications reintroduction job waiting for execution by continuous matrix Register to 13.

For example, the job to be replaced is the execution queue 13 shown in FIG.
Assuming that the job JB ₃ belongs to the middle job class B, the re-submission job continues to be executed for the replacement target job JB ₃ and is registered at the position of the job JB ₃ (in the case of a new job of the job class B, It is registered to the position of the job JB ₅ tail end (right end)).

Step S ₄ registration processing reintroduction job ends, releases the spool space replacement target job, to purge the replacement target job from the processing system.

Step S _5, S ₆ process a job having undergone the above steps S ₁ to S ₃ is to determine whether a cycling job (Step S _5). If the job is a re-submission job, the process proceeds to the execution processing routine 14.

If not turned on again job, processing of registering as a new job is performed (step S _5), then proceeds to execute the processing routine 15.

For example, if the job is a new job of class B, the job at the end (right end) of job class B in FIG.
Registered at the location of JB ₅ .

When the processing of the above input processing routine 12 ends. As in the conventional system, execution processing, output processing, and purge processing are performed.

In other words, the execution processing routine 14 assigns the job (JB ₁ ) having the highest extraction condition (for example, the highest priority) from the job class (JB ₁ ) indicated by the start program to the execution queue 23. extraction, after the allocation of resources of the input and output devices and the like necessary for execution of the job the job JB _1, the spool 17 of the job JB ₁ J
Retrieve CL and SYSIN data and execute the job steps in order.

When the processing of job JB ₁ is completed, output processing routine 15
Output data is written. The output data is temporarily stored in the spool 17, the job management information is put into an output queue (not shown), and is sequentially taken out and written out to a predetermined output device.

When all output processing of job JB ₁ is completed,
B ₁ is the spool space and run queue has been used, and releases any resources of each space and the output queue, to purge the job JB ₁ from the processing system.

〔The invention's effect〕

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

(1) In the execution waiting state, by continuing the execution qualification in the processing system of the job to be replaced with the job to be replaced, the job to be replaced can maintain the execution qualification of the job to be replaced, and the content of the job to be replaced easily. Can be changed. In addition, this makes it possible to edit a job in a wide range.

(2) Since the job to be replaced is purged from the processing system without executing the subsequent processing, it is possible to eliminate waste of processing and charging for the job to be replaced.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a basic configuration of the present invention, FIG. 2 is an explanatory diagram of an overall flow of job processing in one embodiment of the present invention, and FIG. 3 is an explanation of an execution queue of the embodiment. FIG. 4 is a processing flowchart of a JCL interpretation / control routine of the embodiment. FIG. 5 is an explanatory diagram of the entire flow of job processing in the conventional job management method. FIG. 6 is a conventional job management method. It is operation | movement explanatory drawing of a system. In FIG. 1 and FIG. 2, 11 (11 ₁ , 11 ₂ etc.): job, 12: input processing routine, 121: input control routine, 122: JCL interpretation / control routine, 13: waiting for execution Matrix, 14 execution processing routine, 15 output processing routine, 16 purge processing routine, 17 spool.

Claims (1)

(57) [Claims] In a job management method for changing the contents of a job in an execution waiting state after the job is input, a job control statement of the input job is interpreted, and the input job is replaced. Determines whether the job is a resubmission job to change the job contents. If the resubmission job is the job to be replaced, and if the job to be replaced is in a waiting state, the resubmission job A job management method, wherein the execution qualification in the processing system is continued to be in an execution waiting state.