Blocking cache flush requests until completing current pending requests in a local server and remote server

• US 7,213,249 B2
• Filed: 11/30/2001
• Issued: 05/01/2007
• Est. Priority Date: 12/22/2000
• Status: Active Grant

• Current Assignee: Oracle International Corporation (Oracle Corporation)
• Original Assignee: Oracle International Corporation (Oracle Corporation)
• Inventors: Agarwal, Sachin, Lee, Chi Cheng, Tung Loo, Elise Y.
• Primary Examiner(s): Harrell; Robert B.
• Application Number:
  US09/997,408
• Publication Number:
  US 20020143865A1
• Time in Patent Office: 1,978 Days
• Field of Search: 709/201, 709/203, 709/227, 719/330
• US Class Current: 719/330
• CPC Class Codes: G06F 21/41 where a single sign-on provides access to a plurality of computers
• CPC Class Codes: G06F 21/6218 to a system of files or objects, e.g. local or distributed file system or database
• CPC Class Codes: G06F 2221/2119 Authenticating web pages, e.g. with suspicious links
• CPC Class Codes: G06Q 10/10 Office automation; Time management
• CPC Class Codes: H04L 63/0823 using certificates cryptographic mechanisms or cryptographic arrangements for entity authentication involving certificates H04L9/3263
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/306 User profiles
• CPC Class Codes: H04L 67/561 Adding application-functional data or data for application control, e.g. adding metadata
• CPC Class Codes: H04L 67/564 Enhancement of application control based on intercepted application data
• CPC Class Codes: H04L 67/565 Conversion or adaptation of application format or content adding application control or application functional data H04L67/561
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 67/5682 Policies or rules for updating, deleting or replacing the stored data
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

Identity Servers issue and respond to requests for performing remote operations. A local Identity Server receives a request to perform a remote operation. The local Identity Server identifies and executes any required local operations. After completing the local operations, the local Identity Server forwards the remote request to a remote Identity Server, which executes the remote operation. An Identity Server includes a management service, management registry, and request handler. The management service identifies and issues remote request to other servers. The request handler receives remote requests from other servers. The management registry maintains an index of function modules for performing local operations.

Claims

1. A method for a set of servers to respond to a request for a remote operation, wherein said request is issued in a local server in said set of servers, said method comprising the steps of:

(a) said local server performing a local operation arising from said request, wherein said step (a) includes the steps of;

(1) said local server blocking new requests in response to said request,

(2) said local server completing service of requests in progress, and

(3) said local server executing said local operation; and

(b) a remote server in said set of servers performing said remote operation arising from said request, wherein said step (b) includes the steps of;

(1) said remote server blocking all new requests in response to said request,

(2) said remote server completing service of requests in progress, and

(3) said remote server executing said remote operation.

2. The method of claim 1, wherein said step (a) further includes the step of:

(4) issuing said request to said remote server.

3. The method of claim 2, wherein said step (a) further includes the step of:

(5) creating a message channel for issuing said request to said remote server.

4. The method of claim 2, wherein said local server includes a set of function modules, and wherein said step (a) includes the step of:

(6) identifying a function module in said set of function modules corresponding to said local operation.

5. The method of claim 1, wherein said local server is a local Identity Server in communication with a Web Server and said remote server is a remote Identity Server in communication with said Web Server.

6. The method of claim 5, wherein said remote Identity Server and said local Identity Server are in communication with an Access System.

7. The method of claim 1, wherein said step (a) further includes the step of:

(4) issuing said request to said remote server and other servers in said set of servers.

8. The method of claim 1, wherein said local server includes a set of caches and wherein said step (a)(3) includes the step of:

(i) flushing a cache in said set of caches in response to said local operation.

9. The method of claim 1, wherein said remote server includes a set of function modules, and wherein said step (b) includes the steps of:

(4) receiving said request from said local server; and

(5) identifying a function module in said set of function modules corresponding to said remote operation.

10. The method of claim 1, wherein said remote server includes a set of caches and wherein said step (b)(3) includes the step of:

(i) flushing a cache in said set of caches in response to said remote operation.

11. One or more processor readable storage devices having processor readable code embodied on said processor readable storage devices, said processor readable code for programming one or more processors to perform a method for a set of servers to respond to a request for a remote operation, wherein said request is issued in a local server in said set of servers, said method comprising the steps of:

(a) said local server performing a local operation arising from said request, wherein said step (a) includes the steps of;

(1) said local server blocking new requests in response to said request,

(2) said local server completing service of requests in progress, and

(3) said local server executing said local operation; and

(b) a remote server in said set of servers performing said remote operation arising from said request, wherein said step (b) includes the steps of;

(1) said remote server blocking new requests in response to said request,

(2) said remote server completing service of requests in progress, and

(3) said remote server executing said remote operation.

12. One or more processor readable storage devices according to claim 11, wherein said step (a) further includes the step of:

(4) issuing said request to said remote server.

13. One or more processor readable storage devices according to claim 11, wherein said step (a) further includes the step of:

(4) issuing said request to said remote server and other servers in said set of servers.

14. One or more processor readable storage devices according to claim 11, wherein said local server includes a set of caches and wherein said step (a)(3) includes the step of:

(i) flushing a cache in said set of caches in response to said local operation.

15. One or more processor readable storage devices according to claim 11, wherein said remote server includes a set of function modules, and wherein said step (b) includes the steps of:

(4) receiving said request from said local server; and

(5) identifying a function module in said set of function modules corresponding to said remote operation.

16. One or more processor readable storage devices according to claim 11, wherein said remote server includes a set of caches and wherein said step (b)(3) includes the step of:

(i) flushing a cache in said set of caches in response to said remote operation.

17. One or more processor readable storage devices according to claim 11, wherein said local server is a local Identity Server in communication with a Web Server and an Access System and wherein said remote server is a remote Identity Server in communication with said Web Server and said Access System.

18. A system, comprising:

one or more communication interfaces;

one or more storage devices; and

one or more processors in communication with said one or more storage devices and said one or more communication interfaces, said processor performs a method for a set of servers to respond to a request for a remote operation, wherein said request is issued in a local server in said set of servers, said method comprising the steps of;

(a) said local server performing a local operation arising from said request, wherein said step (a) includes the steps of;

(1) said local server blocking new requests in response to said request,

(2) said local server completing service of requests in progress, and

(3) said local server executing said local operation; and

(b) a remote server in said set of servers performing said remote operation arising from said request, wherein said step (b) includes the steps of;

(1) said remote server blocking new requests in response to said request,

(2) said remote server completing service of requests in progress, and

(3) said remote server executing said remote operation.

19. The system of claim 18, wherein said step (a) further includes the step of:

(4) issuing said request to said remote server.

20. The system of claim 18, wherein said step (a) further includes the step of:

(4) issuing said request to said remote server and other servers in said set of servers.

21. The system of claim 18, wherein said local server includes a set of caches and wherein said step (a)(3) includes the step of:

(i) flushing a cache in said set of caches in response to said local operations.

22. The system of claim 18, wherein said remote server includes a set of function modules, and wherein said step (b) includes the steps of:

(4) receiving said request from said local server; and

(5) identifying a function module in said set of function modules corresponding to said remote operation.

23. The system of claim 18, wherein said remote server includes a set of caches and wherein said step (b)(3) includes the step of:

(i) flushing a cache in said set of caches in response to said remote operation.

24. The system of claim 18, wherein said local server is a local Identity Server in communication with a Web Server and an Access System and wherein said remote server is a remote Identity Server in communication with said Web Server and said Access System.