Server system, method for controlling the same, and program for executing parallel distributed processing

• US 9,720,776 B2
• Filed: 03/31/2014
• Issued: 08/01/2017
• Est. Priority Date: 04/02/2013
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Takahashi, Takeshi
• Primary Examiner(s): Dao, Thuy
• Assistant Examiner(s): Rivera, Anibal
• Application Number:
  US14/231,037
• Publication Number:
  US 20140325517A1
• Time in Patent Office: 1,219 Days
• CPC Class Codes: G06F 11/1438 Restarting or rejuvenating
• CPC Class Codes: G06F 11/3006 where the computing system is distributed, e.g. networked systems, clusters, multiprocessor systems multiprogramming arrangements G06F9/46; allocation of resources G06F9/50
• CPC Class Codes: G06F 11/3055 Monitoring arrangements for monitoring the status of the computing system or of the computing system component, e.g. monitoring if the computing system is on, off, available, not available error or fault processing without redundancy G06F11/0703; error detection or correction by redundancy in data representation G06F11/08; error detection or correction by redundancy in operation G06F11/14; error detection or correction by redundancy in hardware G06F11/16
• CPC Class Codes: G06F 11/327 Alarm or error message display
• CPC Class Codes: G06F 16/954 Navigation, e.g. using categorised browsing
• CPC Class Codes: G06F 9/485 Task life-cycle, e.g. stopping, restarting, resuming execution G06F9/4881 takes precedence
• CPC Class Codes: G06F 9/5077 Logical partitioning of resources; Management or configuration of virtualized resources specific details on emulation or internal functioning of virtual machines G06F9/455

Abstract

If the number of task attempts has not exceeded the maximum number of attempts, a server system transmits a regular job to cause tasks to execute a particular process, and if the number of task attempts has exceeded the maximum number of attempts, the server system transmits a failed job to cause the tasks to execute post-processing corresponding to the particular process.

Claims

1. A server system that can communicate with a plurality of tasks of executing prescribed processes, and causes the plurality of tasks, of which the prescribed processes are different from each other, to sequentially process a job having occurred, thereby achieving processing of the job, the server system comprising:

a processor; and

a memory configured to store data to be processed by the processor, and the processor comprising;

a counting unit configured to count a number of task attempts according to a failure of a particular process executed by each of the tasks; and

a job management unit configured to, when the tasks of executing the particular process has made a request to acquire the job, if the number of task attempts counted by the counting unit has not exceeded the maximum number of attempts, transmit a regular job, and if the number of task attempts counted by the counting unit has exceeded the maximum number of attempts, transmit a job for a failure, wherein, if the job management unit has transmitted the regular job, the tasks execute the particular process, and if the job management unit has transmitted the job for a failure, the tasks execute post-processing corresponding to the particular process,

wherein the counting unit counts the number of job attempts when the counted number of task attempts has exceeded the maximum number of attempts, and wherein, when the tasks of executing the particular process has made a request to acquire the job, if the number of task attempts counted by the counting unit has exceeded the maximum number of attempts but the number of job attempts has not exceeded the maximum number of attempts, the job management unit performs control to process the job again from a beginning without transmitting the job for a failure.

2. The server system according to claim 1, wherein, if the number of task attempts counted by the counting unit has exceeded the maximum number of attempts and also the number of job attempts has exceeded the maximum number of attempts, the job management unit transmits the job for a failure.

3. The server system according to claim 1, wherein, if a retry has been assigned to a job of which processing has been suspended since the number of task attempts counted by the counting unit has exceeded the maximum number of attempts and also the number of job attempts has exceeded the maximum number of attempts, the job management unit resets the number of job attempts and the number of task attempts and performs control to process the job again from a beginning.

4. The server system according to claim 1, wherein the post-processing is at least one of a process of outputting an error log, a process of giving a notification as an error email, and a status display process for displaying an error status.

5. The server system according to claim 1, wherein the job is a job of performing image processing on image data generated by scanning an image in an image forming apparatus, and of executing a transmission process for transmitting the image data subjected to the image processing to an external server system.

6. The server system according to claim 1, wherein the particular process is at least one of image processing to be performed on image data generated by scanning an image in an image forming apparatus, and a transmission process for transmitting the image data subjected to the image processing to an external server system.

7. A control method for controlling a server system that can communicate with a plurality of tasks of executing prescribed processes, and causes the plurality of tasks, of which the prescribed processes are different from each other, to sequentially process a job having occurred, thereby achieving processing of the job, wherein a counting unit counts a number of task attempts according to a failure of a particular process executed by each of the tasks,

wherein a job management unit, when the tasks of executing the particular process has made a request to acquire the job, if the number of task attempts counted by the counting unit has not exceeded the maximum number of attempts, transmits a regular job, and if the number of task attempts counted by the counting unit has exceeded the maximum number of attempts, transmits a job for a failure,

wherein, if the job management unit has transmitted the regular job, the tasks execute the particular process, and if the job management unit has transmitted the job for a failure, the tasks execute post-processing corresponding to the particular process, and

wherein the counting unit counts the number of job attempts when the counted number of task attempts has exceeded the maximum number of attempts, and wherein, when the tasks of executing the particular process has made a request to acquire the job, if the number of task attempts counted by the counting unit has exceeded the maximum number of attempts but the number of job attempts has not exceeded the maximum number of attempts, the job management unit performs control to process the job again from a beginning without transmitting the job for a failure.

8. The control method according to claim 7, wherein, if the number of task attempts counted by the counting unit has exceeded the maximum number of attempts and also the number of job attempts has exceeded the maximum number of attempts, the job management unit transmits the job for a failure.

9. The control method according to claim 7, wherein, if a retry has been assigned to a job of which processing has been suspended since the number of task attempts counted by the counting unit has exceeded the maximum number of attempts and also the number of job attempts has exceeded the maximum number of attempts, the job management unit resets the number of job attempts and the number of task attempts and performs control to process the job again from a beginning.

10. The control method according to claim 7, wherein the post-processing is at least one of a process of outputting an error log, a process of giving a notification as an error email, and a status display process for displaying an error status.

11. The control method according to claim 7, wherein the job is a job of performing image processing on image data generated by scanning an image in an image forming apparatus, and of executing a transmission process for transmitting the image data subjected to the image processing to an external server system.

12. The control method according to claim 7, wherein the particular process is at least one of image processing to be performed on image data generated by scanning an image in the image forming apparatus, and a transmission process for transmitting the image data subjected to the image processing to an external server system.

13. A non-transitory computer-readable storage medium storing a computer program for causing a server system to execute the control method according to claim 7.