MEMORY MANAGEMENT SYSTEM AND METHOD FOR OPEN PLATFORM

• US 20090172158A1
• Filed: 12/24/2008
• Published: 07/02/2009
• 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
• Granted Patent: US 8,224,945 B2
• Time in Patent Office: Days
• US Class Current: 709/224
• 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, comprising a local open platform, wherein the local open platform comprises:

a CPU monitoring bundle, for dynamically monitoring a current CPU usage;

a memory monitoring bundle, for dynamically monitoring a current memory usage (MEM usage);

a discovering bundle, for dynamically scattering 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, for determining a remote open platform candidate when the memory exceeds a threshold, and initiating a standard service request; and

a extended service registry, for storing a corresponding standard service access interface, so as to access the standard service provided by the remote open platform candidate.

2. The memory management system as claimed in claim 1, further comprising at least one remote open platform, wherein the remote open platform comprises:

a CPU monitoring bundle, for dynamically monitoring the current CPU usage;

a memory monitoring bundle, for dynamically monitoring the current MEM usage;

a discovering bundle, for dynamically scattering 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, for receiving a standard service request initiated by the local open platform; and

a proxy bundle, for generating 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, for recording 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, for generating 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, for storing 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 the 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 the current CPU and MEM usage of a local open platform;

dynamically scattering CPU and MEM usage information in the internet, and searching the internet to retrieve information accessible from at least one remote open platform;

determining a remote open platform candidate when the memory exceeds a threshold, and initiating a standard service request; and

generating a corresponding standard service access interface, for accessing the standard service provided by the remote open platform candidate;

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 the five service bundles i.e. a CPU monitoring bundle, a memory monitoring bundle, a discovering bundle, a 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 the 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 the information about IP address, CPU usage, MEM 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.