COMPUTER SYSTEM, JOB EXECUTION MANAGEMENT METHOD, AND PROGRAM

• US 20130219406A1
• Filed: 11/10/2010
• Published: 08/22/2013
• Est. Priority Date: 11/10/2010
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Hatabe, Norichika, Sugita, Tsutomu
• Granted Patent: US 9,183,038 B2
• Time in Patent Office: Days
• US Class Current: 718/105
• CPC Class Codes: G06F 2209/484 Precedence
• CPC Class Codes: G06F 2209/5017 Task decomposition
• CPC Class Codes: G06F 9/46 Multiprogramming arrangements
• CPC Class Codes: G06F 9/4881 Scheduling strategies for dispatcher, e.g. round robin, multi-level priority queues
• CPC Class Codes: G06F 9/5038 considering the execution order of a plurality of tasks, e.g. taking priority or time dependency constraints into consideration scheduling strategies G06F9/4881 and subgroups

Abstract

In a computer system of the present invention, whether or not master data has been updated is managed for each division key as master data management information. If the master data has been updated, a job is re-executed, but when the job is re-executed, data is divided using only a division key corresponding to updated master data, and thereby a sub-job which is a re-execution target is localized with the division key unit so as to re-execute a job (refer to FIG. 1).

Claims

1. A computer system comprising:

a plurality of job execution computers that execute a job;

a management computer that generates a plurality of divided data items by dividing master data using a division key indicating the division unit of the master data, and sets a job execution computer which applies a job net to each of the plurality of divided data items so as to execute a sub-job; and

at least one storage device that stores at least the master data and an execution result of the sub-job,

wherein the management computer

manages update related information regarding whether or not the master data has been updated and updated division key information which is a division key corresponding to an updated portion;

specifies a divided data item corresponding to the updated division key information from the plurality of divided data items when the master data is updated after execution of the sub-job or during the execution of the sub-job; and

instructs the job execution computer to apply the job net only on the divided data items which has been specified so as to re-execute a sub-job, and

wherein the job execution computer re-executes the sub-job only on the divided data item which has been specified in response to the sub-job execution instruction from the management computer.

2. The computer system according to claim 1,

wherein the management computer manages multiplicity of vacancies information indicating whether or not there is a capacity for executing a sub-job in each of the plurality of job execution computers, and

wherein the management computer refers to the multiplicity of vacancies information and sets a job execution computer which has a capacity for executing a sub-job as the job execution computer which re-executes the sub-job.

3. The computer system according to claim 2,

wherein the management computer manages output file sharing information indicating whether or not execution results of a plurality of jobs forming the job net are shared between the plurality of job execution computers, and

wherein, when the multiplicity of vacancies information at a current time point of a job execution computer which has executed a preceding job of a current job which is to be executed at the current time point indicates that there is no capacity for executing a job, the management computer refers to the output file sharing information, checks whether or not an execution result of the preceding job can be used by another job execution computer, and sets the job execution computer which re-executes the sub-job on the basis of the checking result.

4. The computer system according to claim 3,

wherein, when the execution result of the preceding job cannot be used by another job execution computer, the management computer delays the setting of the job execution computer until the job execution computer which has executed the preceding job has a capacity for executing a job.

5. The computer system according to claim 1,

wherein the update related information is a file attribute which indicates that the master data has been changed and includes a file size, and

wherein the management computer determines whether or not the master data has been updated using information of the file attribute.

6. The computer system according to claim 1,

wherein the update related information is update history information indicating a history in which the master data has been changed, and

wherein the management computer determines whether or not the master data has been updated using the update history information.

7. The computer system according to claim 1,

wherein the update related information is user action information indicating whether or not a master data editing button provided in a master data display screen for displaying content of the master data has been pressed, and

wherein the management computer determines that the master data has been updated when there is the user action information.

8. The computer system according to claim 1,

wherein the management computer displays management information of the master data and an execution result of the sub-job on a display screen of a display device after the sub-job is executed.

9. The computer system according to claim 8,

wherein the management computer displays the management information of the master data and the execution result of the sub-job on the display screen of the display device in response to a request from a user.

10. The computer system according to claim 8,

wherein, in response to an instruction from a user, the management computer displays an editing screen for editing the master data on the display screen, receives update of the master data, and reflects whether or not update has been performed on the management information of the master data.

11. A job execution management method in a computer system including a plurality of job execution computers executing a job and a management computer managing execution of the job and the plurality of job execution computers,

the management computer managing update related information regarding whether or not the master data has been updated and updated division key information which is a division key corresponding to an updated portion

the job execution management method comprising:

a step of causing the management computer to generate a plurality of divided data items by dividing master data using a division key indicating the division unit of the master data;

a step of causing the management computer to set a job execution computer which applies a job net to each of the plurality of divided data items so as to execute a sub-job;

a step of causing the management computer to specify a divided data item corresponding to the updated division key information from the plurality of divided data items when the master data is updated after execution of the sub-job or during the execution of the sub-job;

a step of causing the management computer to instruct the job execution computer to apply the job net only on the divided data items which has been specified so as to re-execute a sub-job; and

a step of causing the job execution computer to re-execute the sub-job only on the divided data item which has been specified in response to the sub-job execution instruction from the management computer.

12. The job execution management method according to claim 11, further comprising:

a step of causing the management computer to display management information of the master data and an execution result of the sub-job on a display screen of a display device after the sub-job is executed.

13. The job execution management method according to claim 12, further comprising:

a step of causing the management computer to display an editing screen for editing the master data on the display screen, receive update of the master data, and reflect whether or not update has been performed on the management information of the master data, in response to an instruction from a user.

14. The job execution management method according to claim 11,

wherein the management computer manages multiplicity of vacancies information indicating whether or not there is a capacity for executing a sub-job in each of the plurality of job execution computers, and

wherein, in the step of setting the job execution computer, the management computer refers to the multiplicity of vacancies information and sets a job execution computer which has a capacity for executing a sub-job as the job execution computer which re-executes the sub-job.

15. A program causing a management computer which manages execution of a job and a plurality of job execution computers in a computer system including the plurality of job execution computer executing the job, to realize:

a function of managing update related information regarding whether or not the master data has been updated and updated division key information which is a division key corresponding to an updated portion;

a function of generating a plurality of divided data items by dividing the master data using a division key indicating the division unit of the master data;

a function of setting a job execution computer which applies a job net to each of the plurality of divided data items so as to execute a sub-job;

a function of specifying a divided data item corresponding to the updated division key information from the plurality of divided data items when the master data is updated after execution of the sub-job or during the execution of the sub-job; and

a function of instructing the job execution computer to apply the job net only on the divided data items which has been specified so as to re-execute a sub-job.