Priority Based LDAP Service Publication Mechanism

• US 20090070470A1
• Filed: 11/13/2008
• Published: 03/12/2009
• Est. Priority Date: 08/03/2005
• Status: Active Grant

• Current Assignee: Maplebear Inc.
• Original Assignee: International Business Machines Corporation
• Inventors: Piper, Scott A., Santana, Carlos, Bauman, Charles D., Pruett, Gregory
• Granted Patent: US 8,126,916 B2
• Time in Patent Office: Days
• US Class Current: 709/226
• CPC Class Codes: H04L 67/51 Discovery or management thereof, e.g. service location protocol [SLP] or web services
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06
• CPC Class Codes: Y10S 707/99933 Query processing, i.e. searching
• CPC Class Codes: Y10S 707/99936 Pattern matching access

Abstract

A method and system are provided for directing a client to a preferred service instance. At creation of a service instance, the service binding attribute of the created instance is extended to include assigned domains and associated priorities. There are then two phases to directing a client to the preferred service instance. The first phase is compilation of a list of domains and priorities for the service in response to a query. Upon completion of the first phase, a second phase is executed to determine a preferred service for the client by comparing fully qualified domain name entries and assigned priority entries.

Claims

1. A computer system comprising:

a client machine with a processor and memory, and a server machine with a processor and memory, said client machine in communication with said server machine across a network;

a service binding attribute of a service connection point to store priority data of a service, said priority data including adaptive domain data for domains served by a service instance and adaptive priority data associated with said domains, said priority data to indicate a quality of a match of an associated service instance to said domain data;

said client machine to query a directory of assigned domain and priority data to each service binding attribute to search for all instances of said service;

in response to said query, said client machine to receive a list of domain data associated with said priority data for each service instance; and

a client manager adapted to scan said list to find a match for said client to a preferred service instance, including a determination of said preferred service instance for said client based upon;

a comparison of domain data entry in said list with a domain data assignment to said client, and a comparison of a priority entry in said list with a priority assignment to said client responsive to a comparison of said domain data entries resulting in maintenance of a current client assignment.

2. The system of claim 1, further comprising a directory of assigned domain data and priority data associated with each service to be compiled.

3. The system of claim 2, further comprising each item in said directory having a fully qualified domain name and an associated priority.

4. The system of claim 2, wherein said list includes one item per pair of fully qualified domain name and an associated priority.

5. An article comprising:

a computer useable storage medium to store data in a service binding attribute of a service connection point, said data to include adaptive domain data for domains served by said service instance and adaptive priority data associated with said domains, said priority data to indicate quality of a match of an associated service instance to domain data;

the medium embodying computer usable program code for directing a client to a preferred service instance on a server, said computer program code including;

computer useable program code for querying a directory of compiled assigned domain and priority data to each service attribute for all instances of a service;

computer useable program code for receiving a list of domain data associated with said priority data for each service instance in response to said query; and

computer useable program code for scanning said list for a match for a client machine to a preferred service instance, including determining a preferred service instance for said client based upon;

a comparison of a domain data entry in said list with a domain data assignment to said client, and a comparison of a priority entry in said list with a priority assignment to said client responsive to a comparison of said domain data entries resulting in maintaining a current client assignment.

6. The article of claim 5, further comprising computer useable program code for compiling a directory of assigned domain data and priority data associated with each service instance.

7. The article of claim 6, further comprising each item in said directory having a fully qualified domain name and an associated priority.

8. The article of claim 6, wherein said list includes one item per paid of fully qualified domain name and an associated priority.

9. The article of claim 6, further comprising returning the match to the client.

10. An article comprising:

a computer useable data storage medium embodying computer usable program code for directing a client to a preferred service instance of a server, said computer program code including instructions comprising;

instructions to query a directory of compiled assigned domain and priority data to each service attribute for all instances of a service;

instructions to receive a list of domain data associated with said priority data for each service instance in response to said query; and

instructions to scan said list for a match for a client machine to a preferred service instance, including determining a preferred service instance for said client based upon a comparison of a domain data entry in said list with a domain data assignment to said client, and a comparison of a priority entry in said list with a priority assignment to said client responsive to a comparison of said domain data entries resulting in maintaining a current client assignment.

11. The article of claim 10, further comprising the computer useable storage medium to store data in a service binding attribute of a service connection point, said data to include adaptive domain data for domains served by said service instance and adaptive priority data associated with said domains.

12. The article of claim 11, further comprising said priority data to indicate quality of a match of an associated service instance to domain data.

13. The article of claim 10, further comprising instructions to compile a directory of assigned domain data and priority data associated with each service instance.

14. The article of claim 13, further comprising each item in said directory having a fully qualified domain name and an associated priority.

15. The article of claim 13, wherein said list includes one item per paid of fully qualified domain name and an associated priority.

16. The article of claim 10, further comprising returning the match to the client.