JPH01144130A - Monitor system for job stay time - Google Patents

Abstract

PURPOSE:To decrease the incidental jobs of an operator by excluding automatically those jobs having the stay time longer than the allowable value set previously by a computer system based on the monitor result out of a memory area of an auxiliary memory. CONSTITUTION:A monitor means 6 monitors and checks the stay condition of a job held by an auxiliary memory 3 and an available area of the memory 3 at a proper time point. Thus a job having the largest stay time is selected from said check. Then a deciding means 7 checks whether the stay time of the job selected by a selection means 5 is shorter or longer than the allowable value set previously by a computer system. In case the stay time is larger than the allowable value, a deleting means 8 deletes automatically the job selected by the means 5 out of the memory area of the memory 3. Thus it is possible to decrease the incidental jobs of an operator in a computer system.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a job retention time monitoring method, and in particular, prior to job execution, job description information is retained in a storage area on an auxiliary storage device and the job description information is stored at a necessary point in time. This invention relates to a method for monitoring job retention time in a computer system that enables job re-execution.

[Conventional technology]

Conventionally, in this type of job retention time monitoring method, it is not possible to simply select a job with a long retention time and delete it from the computer system every time the job execution is completed. It becomes impossible to eliminate the shortage of usable storage space on the auxiliary storage device due to the increase, and the computer system operator monitors the job execution status and the available storage space status and forcibly updates the auxiliary storage space when necessary. It was necessary to delete jobs with a long retention time from the computer system or to save them to an external storage device such as a magnetic tape device.

[Problem that the invention seeks to solve]

In the conventional job retention time monitoring method described above, the operator of the computer system monitors the job execution status and the status of the available storage area on the auxiliary storage device, and removes jobs with long retention times from the computer system at necessary times. Since this method requires a deletion operation, it has the drawback of increasing incidental work for the operator.

In addition, there may be a delay in the job deletion operation by the operator, and in that case, the storage area required to execute the job on the auxiliary storage device may be insufficient, and the job may not be able to be executed or may not be able to be executed again. The disadvantage is that the jobs inside it may end abnormally.

In view of the above-mentioned points, it is an object of the present invention to monitor the retention status of jobs held in a storage area on an auxiliary storage device and the usable storage area on the auxiliary storage device at an appropriate time, and to monitor the storage area on the auxiliary storage device based on the monitoring results. By automatically deleting jobs whose residence time is longer than the permissible residence time predefined by the computer system from the storage area on the auxiliary storage device, the incidental work of the computer system operator is reduced.
An object of the present invention is to provide a job retention time monitoring method that prevents a bottleneck in starting zip execution due to a lack of usable storage area on an auxiliary storage device and prevents abnormal termination of a job being executed.

[Means for solving problems]

The job retention time monitoring method of the present invention is applicable to a computer system that retains job description information in a storage area on an auxiliary storage device prior to job execution and enables re-execution of the job at a necessary time. monitoring means for monitoring the retention status of jobs held in a storage area on the storage device and the usable storage area on the auxiliary storage device at an appropriate time; a selection means for selecting a job with the longest residence time by referring to job description information held in a storage area on the device; and a residence time of the zip selected by the selection means is predefined in the computer system. determining means for determining whether the residence time is longer or shorter than the allowable residence time; and deletion for deleting the job whose residence time is determined to be longer than the allowable residence time from the storage area on the auxiliary storage device. means.

[Effect]

In the ship retention time monitoring method of the present invention, the monitoring means monitors the retention status of jobs held in the storage area on the auxiliary storage device and the usable storage area on the auxiliary storage device at an appropriate time, and the selection means refers to the job description information held in the storage area of the auxiliary storage device based on the monitoring result by the monitoring means and selects the job with the longest retention time, and the determination means determines the retention time of the job selected by the selection means. The computer system determines whether the time is longer or shorter than the allowable residence time specified in advance, and the deletion means deletes the job whose residence time is determined to be longer than the allowable residence time by the determination means on the auxiliary storage device. Delete from storage area.

〔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 a computer system to which a job retention time monitoring method according to an embodiment of the present invention is applied. This computer system includes a data processing device 1 and an auxiliary storage device 3.

A system scheduler 2, which is a control program that manages job execution, is stored in a main storage device (not shown) of the data processing device 1.

The system scheduler 2 includes a recording means 4 that stores job description information in a storage area on the auxiliary storage device 3 prior to the start of job execution, and a recording unit 4 that stores job description information in a storage area on the auxiliary storage device 3, and records the retention status of jobs held in the storage area on the auxiliary storage device 3. A monitoring means 6 monitors the available storage area on the auxiliary storage device 3 at an appropriate time, and job description information held in the storage area on the auxiliary storage device 3 is referred to based on the monitoring result of the monitoring device 6. a selection means 5 for selecting the job with the longest residence time; and a determination means 7 for determining whether the residence time of the job selected by the selection means 5 is longer or shorter than the allowable residence time predefined by the computer system. and a deletion means 8 for deleting from the storage area of the auxiliary storage device 3 a job whose residence time is determined to be longer than the allowable residence time as determined by the determination means 7.

Referring to FIG. 2, the processes in the job retention time monitoring method of this embodiment include a job retention status and available storage area acquisition step 11, an available storage area shortage determination step 12, and a longest retention time job selection step 13. , a job retention time determination step 14 , and a job deletion step 15 .

Next, the operation of the job retention time monitoring system of this embodiment configured as described above will be explained.

The recording means 4 of the system scheduler 2, which is a control program for managing the execution of zips stored in the main storage (not shown) of the data processing device 1, stores data on the auxiliary storage 3 prior to starting job execution. Store job description information in the area.

Therefore, job description information is held in the storage area on the auxiliary storage device 3.

Further, in the computer system, the permissible residence time of a job is defined in advance.

The job retention time monitoring system of this embodiment is activated by activating the monitoring means 6 in response to a notification that a certain period of time has elapsed from a timer function (not shown) or the like.

The activated monitoring means 6 acquires the retention status of jobs held in the storage area on the auxiliary storage device 3 and the usable storage area on the auxiliary storage device 3, and checks the information in step 11). Determine whether there is a risk of running out of available storage space on 3 (Step 12)
If it is determined that there is no risk of running out of usable storage area on the auxiliary storage device 3, the monitoring means 6 ends the process. If it is determined that there is a risk that the usable storage area on the auxiliary storage device 3 is insufficient, the monitoring means 6 selects the selection means 5.
Start.

The activated selection means 5 refers to the job description information held in the storage area on the auxiliary storage device 3 and selects the job with the longest residence time (step 13).

Next, the determining means 7 determines whether the residence time of the job selected by the selection means 5 is longer or shorter than the allowable residence time predefined by the computer system (step 14).
), if the determination result is shorter than the allowable residence time, the process is immediately terminated.

If the determination means 7 determines that the residence time is longer than the allowable residence time, the deletion means 8 deletes the job selected by the selection means 5 from the storage area on the auxiliary storage device 3 (that is, deletes it from the computer system). ) (step 15).

After a certain period of time has elapsed, the monitoring means 6 is activated, and if the monitoring means 6 is checked again, the above operation is repeated.

〔Effect of the invention〕

As explained above, the present invention monitors and checks the retention status of jobs held on the auxiliary storage device and the usable storage area on the auxiliary storage device at an appropriate time, and when the check occurs, By selecting the job with the longest residence time and automatically deleting it from the storage area on the auxiliary storage when the residence time is longer than the permissible residence time predefined by the computer system, the operator of the computer system can This has the effect that incidental work can be reduced, and bottlenecks in starting job execution and abnormal termination of jobs in progress can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a computer system to which a job retention time monitoring method according to an embodiment of the present invention is applied, and FIG. 2 is a flowchart showing processing in the job retention time monitoring method according to the present embodiment. In the figure, 1... Data processing device, 2... System scheduler, 3... Auxiliary storage device, 4... Recording means, 5... Selection means, 6... Monitoring means, 7 . . . Determination means; 8. Deletion means.

Claims (1)

[Scope of Claims] A computer system in which job description information is held in a storage area on an auxiliary storage device prior to execution of a job, and the job can be re-executed at a necessary time, comprising: monitoring means for monitoring the retention status of jobs held in a storage area and the usable storage area on the auxiliary storage device at an appropriate time; and storage on the auxiliary storage device based on the monitoring result by the monitoring means. a selection means for selecting a job with the longest residence time by referring to job description information held in the area; and a selection means for selecting a job with the longest residence time by referring to job description information held in the area; and determining means for determining whether the residence time is longer or shorter than the allowable residence time; and deletion means for deleting the job whose residence time is determined to be longer than the allowable residence time from the storage area on the auxiliary storage device. A job retention time monitoring method featuring: