CLOUD COMPUTING SYSTEM AND METHOD FOR CONTROLLING SAME

• US 20120072914A1
• Filed: 09/08/2011
• Published: 03/22/2012
• Est. Priority Date: 09/17/2010
• Status: Active Grant

• Current Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Original Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Inventors: Ota, Shunsuke
• Granted Patent: US 9,075,656 B2
• Time in Patent Office: Days
• US Class Current: 718/100
• CPC Class Codes: G06F 9/455 Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
• CPC Class Codes: G06F 9/5022 Mechanisms to release resources
• CPC Class Codes: G06F 9/5072 Grid computing

Abstract

A management application refers to an application management table, and acquires the operation states of all VMs included in an additional application of which the priority related to the execution of a job that has requested from the image forming apparatus. The management application detects the additional application including only VM that is not executing processing based on the operation states of the acquired VMs, and deletes the VM included in the detected additional application.

Claims

1. A cloud computing system comprising:

a request reception unit configured to be realized by executing a request reception program that stores a message corresponding to a job in a storage unit in response to the reception of a processing request for the job from an information processing apparatus;

a back-end processing unit configured to be realized by executing a back-end processing program that makes an acquisition request for the message to the storage unit at regular intervals, and when the message has been acquired from the storage unit, performs processing based on the acquired message;

wherein a plurality of the back-end processing units is activated in the cloud computing system, and each back-end processing unit is incorporated into a processing execution unit that functions as an application, and

a deletion unit configured not to delete an application that includes the process execution unit that is executing processes based on the message, but to delete the process execution unit that includes applications other than this application.

2. The cloud computing system according to claim 1, wherein the deletion unit detects the application including only the processing execution unit that is not executing processing based on the message, and deletes the processing execution unit included in the application.

3. The cloud computing system according to claim 2,

wherein the application comprises a first application including only a processing execution unit that is activated all the time, and a second application that is different from the first application,

wherein the number of the processing execution units included in the first application is greater than the number of the processing execution units included in the second application,

wherein the processing execution unit included in the first application executes processing based on the message in priority to the processing execution unit included in the second application, and

wherein the deletion unit detects the second application including only the processing execution unit that is not executing processing based on the message, and deletes the processing execution unit included in the second application.

4. The cloud computing system according to claim 3, further comprising:

a management unit configured to manage the operation states of the processing execution units included in the first and second applications and priorities, which are associated with the respective applications and processing execution units and relate to the execution of processing based on the message by the respective processing execution units, as management information,

wherein the deletion unit refers to management information managed by the management unit, and detects the second application including only the processing execution unit that is not executing processing based on the message.

5. The cloud computing system according to claim 4,

wherein the deletion unit refers to management information managed by the management unit and acquires the operation states of all the processing execution units included in the second application of which the corresponding priority is the lowest when the number of times that the processing execution unit included in the first application was incapable of acquiring the message from the storage unit is equal to or greater than a predetermined threshold value, determines whether or not the second application includes only the processing execution unit that is not executing processing based on the message on the basis of the operation states of all the acquired processing execution units, and provides instructions to the second application about the deletion of the processing execution unit included in the second application when the second application includes only the processing execution unit that is not executing processing based on the message.

6. The cloud computing system according to claim 4, wherein the respective processing execution units included in the second application refer to the operation states and the priorities of the processing execution units managed by the management unit, determine whether or not all the processing execution units included in an application having a higher priority than that corresponding to the second application are executing processing based on the message, and executes processing based on the message only when all the processing execution units included in an application having a higher priority than that corresponding to the second application are executing processing based on the message.

7. A method for controlling a cloud computing system, the method comprising:

storing a message corresponding to a job in a storage unit in response to the reception of a processing request for the job from an information processing apparatus by a request reception unit configured to be realized by executing a request reception program,; and

processing an acquisition request for the message to the storage unit at regular intervals, and when the message has been acquired from the storage unit, performing processing based on the acquired message by a back-end processing unit configured to be realized by executing a back-end processing program,

wherein a plurality of the back-end processing units is activated in the cloud computing system, and each back-end processing unit is incorporated into a processing execution unit that functions as an application, and

not deleting the application that includes the process execution unit that is executing a process based on the message but deleting the process execution units that include applications other than this application.