JPH0659913A - Batch job scheduling system - Google Patents

Abstract

PURPOSE:To provide a batch job schedular capable of automatically extracting a batch job to be executed at a time concerned only by inputting plural batch jobs together with their execution conditions and executing operation in consideration of the execution order of the batch jobs. CONSTITUTION:A system for executing plural batch jobs by their non-fixed combination at every prescribed period has a batch job file 1 previously storing an execution condition including the execution interval of each batch job and its preceding batch job name correspondingly to the batch job, an extraction means 2 for retrieving the file 1 in each prescribed period and extracting a batch job to be executed at time concerned and an extracted batch job file 3 for storing the extacted batch job, and a batch job execution control means 5 for sequentially executing the extacted batch job continued to the preceding batch job.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer system for combining a plurality of batch jobs to perform desired processing. More specifically, the processing is carried out every predetermined period, and the combination of batch jobs at that time is atypical. A scheduling system for a batch job.

[0002]

2. Description of the Related Art Today, task control using batch jobs has become extremely popular as a computer operation method. This is because the batch job can perform extremely convenient and accurate operation when executing a plurality of programs having different processing contents routinely in a fixed order.

However, it is difficult for a normal batch job to deal with a job whose execution form is atypical.
For example, in a data processing system such as a lending business, various application programs are executed, but the operating mode is atypical such as daily processing and monthly processing, and one of the daily and monthly processings Execution is performed under some restrictions such as using the execution result of a program as data of another program. In such a case, if you try to create a batch job and operate it, create a batch job for each atypical process or create a basic batch job and specify only the atypical part. There was a method such as combining batch jobs to perform processing.

However, if a batch job is created for each process, the number of batch jobs to be managed will become huge, and there is a risk that incorrect operation will be performed. Further, in the method of combining batch jobs, the operator has to proceed with the process while confirming the constraint conditions of the batch job to be executed, and there is a possibility that the operation may be mistaken.

[0005] Conventionally, there is one disclosed in Japanese Patent Laid-Open No. 1-259432 that automatically attempts to execute a batch job in consideration of the restriction on the execution order. Further, there is a method described in Japanese Patent Application Laid-Open No. 60-128536 in which a plurality of batch jobs are registered together with their executable time zones and can be executed only in the relevant time zones.

[0006]

However, the above-mentioned conventional techniques have the following problems. That is, since the one disclosed in Japanese Patent Laid-Open No. 1-259432 determines the execution order based on the history of batch jobs that have been executed once, it cannot support a combination of new batch jobs and There is a problem in the business where the combination of batch jobs changes every time.

Further, although the one described in JP-A-60-128536 can simplify the input job of the batch job in that a plurality of batch jobs can be registered and the one to be executed can be extracted from them. It is necessary to specify the executable time zone in consideration of the order of batch jobs to be executed, and adjust the job amount so that the batch jobs can be executed during that time zone. There is a problem that is large. Further, since the one described in the publication has no association with the preceding batch job, there is a problem that the next batch job is executed even if the preceding batch job fails in processing.

The present invention solves such a problem, and its purpose is to automatically extract a batch job to be executed at the time by simply inputting a plurality of batch jobs together with their execution conditions. The purpose is to provide a batch job scheduler that operates in consideration of its execution order.

[0009]

According to the present invention, in a system in which a plurality of batch jobs are combined in an atypical manner at predetermined intervals and executed, an execution condition including an execution interval and a preceding batch job name is set for each batch job. A batch job file that is stored in advance corresponding to a batch job, an extraction unit that searches the execution condition file for each predetermined period and extracts a batch job that should be executed at that time, and stores the extracted batch job And a batch job execution control means for sequentially executing the extracted batch job from the preceding batch job.

[0010]

In this system, the extraction means searches the batch job file at a predetermined time and stores the batch job to be executed at the time in the extracted batch job file. Next, the batch job execution control means considers the preceding batch jobs corresponding to the stored batch jobs and sequentially executes them.

[0011]

EXAMPLES The present invention will be described below based on examples.
FIG. 1 is a system conceptual diagram showing the overall configuration of this system. The batch job file 1 stores a plurality of batch jobs in advance. Each stored batch job has a function of a part of the desired processing when the desired processing is performed using this system. Sunahachi,
The desired processing is achieved by combining a plurality of batch jobs.

The batch job file 1 also pre-stores execution conditions for each batch job, and the execution conditions include at least an execution interval and a preceding batch job name. An example of the structure of the batch job file is shown in FIG. As is clear from the figure, a preceding batch job name which is an execution condition and a flag indicating an execution interval are stored corresponding to each batch job name. In the case of the figure, the batch job with the batch job name B is the preceding batch job A, so the batch job A is first executed and then executed. Further, since the batch job of B has a flag that the execution interval is every day, it is executed at a predetermined time every day.

Although the batch job name is actually a pointer to the content of the batch job, the content itself of the batch job may be stored directly. Further, the batch job file 1 may store history information such as the number of batch job executions in addition to the batch job and the execution conditions.

Of the batch jobs stored in this way, only the ones to be executed are extracted by the batch job extracting means 2 at a predetermined time. Batch job extraction means 2
Is connected to the timer 21 at a predetermined interval, for example 2
It is activated every 4 hours to perform extraction work. When the batch job extracting means 2 is activated, it first determines which of the execution intervals the current time corresponds to. For example, when the current time is on the 10th day and the activation interval of the batch job extracting means 2 is 24 hours, the daily flag and the flag of the 10th day are searched for, and A, B, C, and D,
E, F and G, I batch jobs are extracted.

The extracted batch job is stored in the extracted batch job file 3. The file structure of the extracted batch job file 3 may be basically the same as that of the batch job file 1, but pointer information corresponding to each batch job may be used as the batch job name. Also,
In addition to the batch job name and execution conditions, history information such as execution start time and execution end time may be stored.

Further, the present system further comprises an editing means 4 for the operator to add / delete the batch job name or the preceding batch job name to / from the data once stored in the extracted batch job file 3. It may be provided.

When a batch job is stored in the extracted batch job file 3 as described above, the batch job execution control means 5 is activated to sequentially execute the stored batch jobs as follows. First, the extracted batch job file 3 is searched, the preceding batch job name corresponding to each batch job is traced, and the execution instruction is issued to the most preceding batch job.

The execution of the batch job is performed under the batch job execution control means 5, and the batch job execution control means 5 confirms that each batch job has been completed normally, and then executes the next batch job. To execute. If any of the batch jobs ends abnormally, the execution control is stopped at that point, and the status is notified to the operator by a message. In order to confirm the execution of such a batch job, it is general that the batch job execution control means 5 monitors the end flag of each batch job, and when the flag is set, the next process is performed.

In this way, each time a batch job ends, the extracted batch job file is searched, and the execution instruction is issued to the most preceding batch job among those whose end flag is reset.

For example, according to the above-mentioned example, a search is made for a flag for the 10-day segment, and A, B, C, D,
When the batch jobs of E, F, G, and I are extracted, as shown in FIG. 3, the process of A → B → C and the process of D → E are performed, and when both these processes are completed, F → The processing of G will be performed. In this case, A → B → C processing and D →
Since it is not related to the processing of E, a multitasking OS can improve performance by simultaneously issuing execution instructions to A and D and performing parallel processing.

[0021]

According to the present invention, by simply inputting a batch job and its execution condition, when it should be executed, it is automatically executed in an appropriate order, making it difficult to apply the conventional batch job. Even irregular jobs can be operated accurately and without impairing the original simplicity of batch jobs.

[Brief description of drawings]

FIG. 1 is a system conceptual diagram showing an overall configuration of the present system.

FIG. 2 is an explanatory diagram showing the structure of a batch job file.

FIG. 3 is an explanatory diagram showing an execution order of batch jobs.

Claims (1)

[Claims] 1. In a system for executing a combination of a plurality of batch jobs at regular intervals and executing them in an atypical manner, execution conditions including an execution interval and a preceding batch job name are stored in advance for each batch job in association with the batch job. A batch job file to be stored, an extraction unit that searches the execution condition file for each predetermined period and extracts a batch job to be executed at the time, an extraction batch job file that stores the extracted batch job, A batch job scheduling system having a batch job execution control means for sequentially executing the extracted batch jobs from the preceding batch jobs.