Restricting resources consumed by ghost agents

• US 7,480,914 B2
• Filed: 09/19/2003
• Issued: 01/20/2009
• Est. Priority Date: 09/19/2003
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Creamer, Thomas E., Moore, Victor S., Katz, Neil A., Hilf, Bill H., Jaiswal, Peeyush, Mirt, Michael
• Primary Examiner(s): An; Meng-Ai
• Assistant Examiner(s): Kawsar; Abdullah Al
• Application Number:
  US10/666,464
• Publication Number:
  US 20050065992A1
• Time in Patent Office: 1,950 Days
• Field of Search: 718/104, 718/105, 718/1, 718/100, 718/103, 718/108, 719/317, 719/316, 719/318, 719/319, 709/202, 709/223, 709224-226, 709/229, 709/243
• US Class Current: 718/105
• CPC Class Codes: G06F 2209/5022 Workload threshold
• CPC Class Codes: G06F 2209/508 Monitor
• CPC Class Codes: G06F 9/505 considering the load

Abstract

One aspect of the present invention can include a method for restricting resources consumed by ghost agents. The method can include the step of associating a ghost agent with a host. A resource utilization value can be ascertained for the ghost agent and the host combined. The ascertained resource utilization value can be compared with a usage threshold. A determination can be made as to whether operations of the ghost agent are to be executed based upon the previous comparison.

Claims

1. A method for restricting resources consumed by ghost agents within a grid computing environment, comprising the steps of:

identifying a host, wherein said host is a software object operating within said grid environment and movable from one grid to another grid within the grid environment;

associating a ghost agent with said host, wherein said ghost agent is configured to execute at least one operation, wherein said operation comprises replicating and recording at least one action of said host, and wherein the ghost agent follows the movement of the associated host;

identifying computing resources used by the ghost agent;

determining a usage value for each computing resource used by the ghost agent;

calculating a resource utilization value for said ghost agent based on usage values determined for individual computing resources;

comparing said resource utilization value to a usage threshold value pre-established for the ghost agent, wherein the usage threshold value defines a maximum resource utilization value permitted; and

reducing a quantity of the computing resources used by the ghost agent if it is determined that the resource utilization value exceeds the usage threshold value,

wherein said ghost agent can be deactivated and reactivated and said reducing step further comprises the steps of;

queuing attempted operations of the ghost agent during deactivation; and

executing operations from the queue after the ghost agent is reactivated.

2. The method of claim 1, wherein said calculating step comprises calculating a summation, the greatest value, or an average of the determined usage values.

3. A method for restricting resources consumed by ghost agents within a grid computing environment, comprising the steps of:

identifying a host, wherein said host is a software object operating within said grid environment and movable from one grid to another grid within the grid environment;

associating a ghost agent with said host, wherein said ghost agent is configured to execute at least one operation, wherein said operation comprises replicating and recording at least one action of said host, and wherein the ghost agent follows the movement of the associated host;

identifying computing resources used by the ghost agent;

determining a usage value for each computing resource used by the ghost agent;

calculating a resource utilization value for said ghost agent based on usage values determined for individual computing resources;

comparing said resource utilization value to a usage threshold value pre-established for the ghost agent, wherein the usage threshold value defines a maximum resource utilization value permitted; and

reducing a quantity of the computing resources used by the ghost agent if it is determined that the resource utilization value exceeds the usage threshold value,

wherein said reducing step further comprises the steps of;

deactivating said ghost agent;

starting an idle timer; and

,

reactivating said ghost agent when a current time of said idle timer exceeds a predetermined time threshold.

4. The method of claim 3, wherein said reducing step further comprises the steps of:

queuing attempted operations of the ghost agent during deactivation; and

executing operations from the queue after the ghost agent is reactivated.

5. The method of claim 3, wherein said calculating step comprises calculating a summation, the greatest value, or an average of the determined usage values.

6. A method for restricting resources consumed by ghost agents within a grid computing environment, comprising the steps of:

identifying a host, wherein said host is a software object operating within said grid environment and movable from one grid to another grid within the grid environment;

associating a ghost agent with said host, wherein said ghost agent is configured to execute at least one operation, wherein said operation comprises replicating and recording at least one action of said host, and wherein the ghost agent follows the movement of the associated host;

identifying computing resources used by the ghost agent;

determining a usage value for each computing resource used by the ghost agent;

calculating a resource utilization value for said ghost agent based on usage values determined for individual computing resources;

comparing said resource utilization value to a usage threshold value pre-established for the ghost agent, wherein the usage threshold value defines a maximum resource utilization value permitted; and

reducing a quantity of the computing resources used by the ghost agent if it is determined that the resource utilization value exceeds the usage threshold value,

wherein the reducing step further comprises the step of;

categorizing operations of the ghost agent into having a low resource requirement or a high resource requirement based on pre-determined criteria; and

restricting to execution of operations that have a low resource requirement.

7. The method of claim 6, wherein said calculating step comprises calculating a summation, the greatest value, or an average of the determined usage values.