JPH09146763A - Job execution control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely start a job at a specified time by executing preprocessing before the arrival of the specified time. SOLUTION: A job control language analyzing means 4 analyzes the job control language of an inputted job, and at the time of detecting an error, urges the reinput of the job. A system load information judging means 8 urges an initiation means 6 to execute the initiation processing of the start time specified job at the time when the system load is low. After the execution of the initiation processing, a time specification job managing means 7 temporarily stores and manages the job before its execution. If an emergent job or the like is generated during the storage, a resource temporary releasing means 10 temporarily releases a resource secured by the initiation processing. After the end of the emergent job, a resource resecuring means 11 resecures the resource.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a job execution control device in a computer system.

[0002]

2. Description of the Related Art A conventional job execution control device of this type is
It is used only for automating job startup. For example,
The job execution control method described in Japanese Patent Laid-Open No. 02-222056 is used for automating the start-up of a batch job at midnight, and a monitoring unit that monitors a system input unit and a current time are checked. It is composed of a clock unit and a comparison unit for comparing the current time and the designated start time. When the monitoring unit recognizes the activation time designation job, the time counting unit checks the current time, and the comparison unit compares the current time with the activation designation time. When the designated start time is reached, the job control language is read from the system input section and the job execution is started.

[0003]

In the above-mentioned conventional job execution control method, the error of the job control language of the submitted job and the resource which the job is trying to secure cannot be known until the designated start time. Even if the specified start time arrives, the job may be started at the specified start time because it may be waiting to be taken out of the job input queue, waiting for resources to be available, or abnormally terminated due to a job control language error. There is a problem that it can be difficult to do.

In view of the above points, an object of the present invention is to provide a job execution control device in which a job is surely started at a designated time.

[0005]

A job execution control apparatus according to the present invention analyzes a job control language to detect an error in job management for managing a job which is designated to start at a predetermined time. When it is detected, it is divided into a job control language analysis means for prompting the job to be re-injected and an initiation means for making an initiation such as resource reservation, and has a time designation job management means for managing the job stopped immediately before the execution after the completion of the initiation. It is characterized by

[0006]

Next, the present invention will be described with reference to the drawings.

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

Referring to FIG. 1, in this embodiment, a start time designation job 1, a job input queue 2, a job input queue management 3, a job control language analysis means 4, a scheduler 5, and an initiation means 6 are provided. , Time designation job management means 7. Further, the scheduler 5 has a system load determination means 8, and the time designation job management means 7 has a timer registration means 9, a resource temporary release means 10, a resource reserving means 11, and a time arrival notification receiving means 12.

The job control language analysis means 4 takes out the start time designation job 1 which is the job whose start time is designated from the job input queue 2, analyzes the job control language, and delivers it to the scheduler 5. If an error in the job control language or the like is detected at this time, the processing ends abnormally, and the resubmission of the job can be prompted.

The scheduler 5 has a system load information judging means 8, which prompts the initiating means 6 to make an initiation such as securing resources of the start time designation job 1 when the load is low. The initiating means 6 is
Start time specified job 1 handed over from scheduler 5
The time designation job management means 7
Hand over to

The time designation job management means 7 performs timer registration of the time designation job 1 delivered from the initiation means 6 using the timer registration means 9 and manages the time designation job 1 until the activation time. The notification indicating that the time has arrived is recognized by the time arrival notification receiving means 12, and the start time designation job 1 is executed. Time-specified job management 7
When an urgent job or the like tries to use the resource secured by the start time designated job 1, the temporary resource releasing means 10 is used to temporarily release the resource. The resources are secured again using the resource securing means 11.

Next, a start time designation job A as shown below
The operations of the embodiment in the case where the inputs of B and B are scheduled and it is necessary to move the emergency job before the start time will be described. It should be noted that the input time is 10:00.

Start time specified job A start 13:00 resource file a (exists in disk A) file b (exists in disk B) start time specified job B starts 15:00 resource file b (exists in disk B) File c (existing in disk B) At 10:00, when two jobs, a start time designation job A and a start time designation job B, are submitted, they are submitted to the job input queue 1 and the job control language is managed by the job input queue management 3. There was an error in the job control language of the start time designated job B at the place where it was delivered to the analyzing means 4, and the job ended abnormally. If the job control language of the start time designated job B is corrected and the job is re-entered, the job can be normally submitted.

At about 10:10, since the system load is reduced, the system load information judging means 8 which has detected this, prompts the initiating means 6 to initiate, and the initiating means 6 receives the resources and secures the resources of the files a and b. Initiation including etc.

Around 12:00, at 13:00, an abnormality occurred in the disk A containing the file a to be used by the start time designation job A, and it became necessary to start an urgent job for investigation. This urgent job needs to reserve the resources of the entire disk to investigate the disk,
It is not possible to start up even if only one file in the disk is reserved. However, when the urgent job is input, the file a, which is the resource reserved by the job A with the specified start time, is temporarily released by the resource temporary releasing means 10, and the urgent job can be activated.

When the urgent job is completed, the file a, which is the resource used by the job A with the designated start time, is reallocated by the resource reallocation means 11. In the investigation by the above-mentioned emergency job at this time, there was no problem with file a, so
It was found that there is no problem in starting the job A with the specified start time.

At 13:00, the time arrival notification is sent from the timer to the time arrival notification receiving means 12, the start time designation job A is started, and the job is normally completed. 15:
When the time reaches 00, the start time designation job B is similarly started,
It ended normally.

In the embodiment described above, the system load information judging means 8, the resource temporary releasing means 10 and the resource reserving means 11 are not essential components. That is,
The system load information judging means 8 is not required unless the willingness to cause the initiating means 6 to initiate regardless of the load state of the system. Further, the resource temporary releasing means 10 and the resource reserving means 11 are not necessary unless consideration is given to the occurrence of an urgent job.

[0019]

As described above, the job execution control apparatus according to the present invention divides the job management into the job control language analyzing means and the initiating means, and the job control language is taken out from the job input queue before the start time. Since the analysis is performed, there is no effect of waiting for taking out from the job input queue at the time when the activation time comes, and an error of the job control language can be found before the activation time.

Further, the time designation job management means is provided with a resource temporary release means and a resource reserving means, so that when an urgent job occurs, it can handle the processing and wait for the resources used by the start time designation job to become available. Has the effect of not occurring.

Further, by providing the system load information judging means in the scheduler, it is possible to improve the efficiency of use of system resources by prompting the initiator means to select when the system load is low. Have.

[0022]

[Brief description of the drawings]

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

[Explanation of symbols]

 1 Start Time Designation Job 2 Job Input Queue 3 Job Input Queue Management 4 Job Control Language Analysis Means 5 Scheduler 6 Initiating Means 7 Time Designation Job Management Means 8 System Load Information Judging Means 9 Timer Registration Means 10 Resource Temporary Release Means 11 Resource Reserving Means 12 Time arrival notification receiving means

Claims (3)

[Claims] 1. A job control language for analyzing a job control language for job management for managing a job submitted by designating that the job is started at a predetermined time, and prompting to re-submit the job when an error is detected. A job execution control device comprising a time designation job management means for managing a job stopped immediately before execution after completion of the initiation, which is divided into an analysis means and an initiation means for making an initiation such as resource reservation. 2. The job execution control apparatus according to claim 1, further comprising system load information determination means for selecting the time when the system load is low to operate the initiator means. 3. The time designation job management means includes resource temporary release means for temporarily releasing the resource while securing the resource and resource reserving means for reserving the temporarily released resource. The job execution control device according to claim 1, wherein