Memory management system and method for open platform

• US 8,224,945 B2
• Filed: 12/24/2008
• Issued: 07/17/2012
• Est. Priority Date: 12/27/2007
• Status: Active Grant

• Current Assignee: Industrial Technology Research Institute
• Original Assignee: Industrial Technology Research Institute
• Inventors: Lee, Kuen-Ming, Chu, Jenn-Lien, Su, Po-Chou
• Primary Examiner(s): TRUONG, LAN DAI T
• Application Number:
  US12/344,028
• Publication Number:
  US 20090172158A1
• Time in Patent Office: 1,301 Days
• Field of Search: 709/223, 709/212, 709/213, 709/214, 709/216, 709/219
• US Class Current: 709/223
• CPC Class Codes: H04L 12/2858 Access network architectures
• CPC Class Codes: H04L 41/046 comprising network management agents or mobile agents therefor
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/1008 based on parameters of servers, e.g. available memory or workload monitoring of computer activity G06F11/30
• CPC Class Codes: H04L 67/1029 using data related to the state of servers by a load balancer
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services

Abstract

The present invention relates to a memory management system and method for open platform. The memory management system and method of the present invention utilizes the main spirit of sharing service in open platform. When the used memory in local open platform exceeds an upper limit, the standard service bundle access interface is used for accessing the standard service bundle in remote open platform. Therefore, the standard service bundle in local open platform can be off-loaded to release the memory space so as to resolve the memory shortage problem. The stability of the whole system can be maintained.

Claims

1. A memory management system for open platform, the memory management system comprising:

a local open platform comprises;

a non-transitory storage medium;

a CPU monitoring bundle operated on said non-transitory storage medium, to dynamically monitor computing resource of a current CPU usage of the local open platform;

a memory monitoring bundle operated on said non-transitory storage medium, to dynamically monitor computing resource of a current memory usage (MEM usage) of the local open platform;

a discovering bundle operated on said non-transitory storage medium, to dynamically scatter computing resource of CPU and MEM usage information in the internet, and searching the internet to retrieve information accessible from at least one remote open platform;

a management agent bundle operated on said non-transitory storage medium, to determine a remote open platform candidate when the computing resource of the memory usage of the local open platform exceeds a threshold, and initiating a standard service request to the remote open platform candidate; and

an extended service registry operated to receive registration information from the remote open platform candidate for a standard service bundle access interface, and to store the standard service access interface, so as to access the standard service provided by the remote open platform candidate through the standard service access interface;

wherein the remote open platform uses the same open platform standard as the local open platform, and the remote open platform has at least one standard service bundle operated on non-transitory storage medium;

wherein the local open platform has at least one standard service bundle operated on said non-transitory storage medium, the standard service bundle of the at least one remote open platform is the same as the standard service bundle of the local open platform.

2. The memory management system as claimed in claim 1, further comprising at least one remote open platform with a non-transitory storage medium, wherein the remote open platform comprises:

a CPU monitoring bundle operated on said non-transitory storage medium, to dynamically monitor the current CPU usage;

a memory monitoring bundle operated on said non-transitory storage medium, to dynamically monitor the current MEM usage;

a

discovering bundle operated on said non-transitory storage medium, to dynamically scatter CPU and MEM usage information in the internet, and search the internet to retrieve information accessible from at least one remote open platform;

a management agent bundle operated on said non-transitory storage medium, to receive a standard service request initiated by the local open platform; and

a proxy bundle operated on said non-transitory storage medium, to generate a corresponding standard service access interface to the extended service registry of the local open platform, so as to enable the local open platform to access the standard service.

3. The memory management system as claimed in claim 2, wherein the local open platform and the remote open platform respectively have an information table, to record information about IP address, CPU usage, MEM usage, and time to live (TTL) of the remote open platform.

4. The memory management system as claimed in claim 3, wherein the management agent bundle of the local open platform weighs the information in the information table, so as to determine the remote open platform candidate.

5. The memory management system as claimed in claim 3, wherein the discovering bundle of the local open platform dynamically queries the CPU monitoring bundle, the memory monitoring bundle, and retrieves the current CPU and MEM usage, then dynamically scatters the information in the internet, and records the information into the information table of the local open platform.

6. The memory management system as claimed in claim 2, wherein the local open platform has a proxy bundle, to generate a corresponding standard service access interface required by the remote open platform.

7. The memory management system as claimed in claim 2, wherein the local open platform and the remote open platform respectively have a local service registry, to store corresponding standard service instances.

8. The memory management system as claimed in claim 2, wherein the local open platform and the remote open platform comprise open service platforms adopting an Open Services Gateway Initiative (OSGi) standard.

9. The memory management system as claimed in claim 1, wherein memory space of the local open platform is allocated by a virtual machine in initial.

10. A memory management method for open platform, comprising:

dynamically monitoring, by a CPU monitoring bundle, computer resource of current CPU usage of a local open platform;

dynamically monitoring, by a memory monitoring bundle, computer resource of memory usage of a local open platform;

dynamically scattering, by a discovering bundle computer resource of CPU and MEM usage information in the internet, and searching the internet to retrieve information accessible from at least one remote open platform;

generating, through an extended service registry, a standard service bundle access interface, for accessing the standard service provided by the remote open platform candidate,

storing, an extended service registry, the standard service access interface, so as to access the standard service provided by the remote open platform candidate through the standard service access interface;

determining, by a management agent bundle, a remote open platform candidate when computing resource of the memory usage of the local open platform exceeds a threshold, and initiating a standard service request to the remote open platform candidate;

wherein the remote open platform uses the same open platform standard as the local open platform, and the at least one remote open platform has at least one standard service bundle operated on non-transitory storage medium, and wherein the local open platform has at least one standard service bundle operated on said non-transitory storage medium, the standard service bundle of the at least one remote open platform is the same as the standard service bundle of the local open platform.

11. The memory management method as claimed in claim 10, before the dynamic monitoring step, further comprising activating the local open platform to directly load and actuate five service bundles comprising the CPU monitoring bundle, the memory monitoring bundle, the discovering bundle, the management agent bundle, and a proxy bundle.

12. The memory management method as claimed in claim 10, wherein the remote open platform candidate is determined according to information about IP address, CPU usage, MEM usage, and TTL of at least one remote open platform.

13. The memory management method as claimed in claim 12, wherein information about the IP address, the CPU usage, the memory usage, and TTL of at least one remote open platform is stored in an information table of the local open platform, and the information in the information table is weighed to determine the remote open platform candidate.

14. The memory management method as claimed in claim 13, wherein the step of dynamically scattering CPU and MEM usage information in the internet further comprises dynamically querying the current CPU and MEM usage, then dynamically scattering the information in the internet, and recording the information into the information table of the local open platform.

15. The memory management method as claimed in claim 10, wherein after the local open platform initiates a standard service request, the remote open platform candidate receives the standard service request, and stores a corresponding standard service instance in a local service registry.

16. The memory management method as claimed in claim 15, wherein when the local open platform continues to execute new application programs which exceed the available memory size, the local open platform initiates an actual request of standard service bundle to the remote open platform candidate, and the remote open platform candidate receives the actual request of standard service bundle and then generates a corresponding standard service access interface in an extended service registry of the local open platform.

17. The memory management method as claimed in claim 16, wherein after the remote open platform candidate generates a corresponding standard service access interface in an extended service registry of the local open platform, the local open platform accesses the standard service provided by the remote open platform candidate through the corresponding standard service access interface.