[특허]Method and system for using virtual URLs for load balancing

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-015/173
출원번호	US-0282692 (1999-03-31)
등록번호	US-8375127 (2013-02-12)
발명자 / 주소	Lita, Christian
출원인 / 주소	International Business Machines Corporation
인용정보	피인용 횟수 : 39 인용 특허 : 26

초록 ▼

A method, computer program product and server for use managing connection requests to a pool of servers identified by a given URL. The method begins in response to a connection request from a given client machine that initiates a user session for associating a session identifier with a given server

A method, computer program product and server for use managing connection requests to a pool of servers identified by a given URL. The method begins in response to a connection request from a given client machine that initiates a user session for associating a session identifier with a given server in the pool. The session identifier is then used to generate a “virtual” URL that redirects the connection request to the given server. Thereafter, any additional connection requests issued from the given client machine during the user session are redirected to the given server so that all content is served to the client from the same location. When the user session terminates, the virtual URL is inactivated and the given server is returned to the pool so that it can then be assigned a new user session to manage.

대표청구항 ▼

1. A method for managing connection requests to a pool of servers identified by a given URL, comprising the steps of: in response to a connection request from a given client machine that initiates a session, associating a session identifier with a given server in the pool;using the session identifie

1. A method for managing connection requests to a pool of servers identified by a given URL, comprising the steps of: in response to a connection request from a given client machine that initiates a session, associating a session identifier with a given server in the pool;using the session identifier in a redirection response;returning the redirection response to the given client to redirect the connection request to the given server; andduring the session, receiving at the given server any additional connection requests from the given client machine. 2. The method as described in claim 1 wherein the step of using the session identifier includes generating a virtual URL. 3. The method as described in claim 2 wherein the virtual URL comprises a URL in the connection request modified to include the session identifier. 4. The method as described in claim 1 wherein the session identifier is incorporated in data returned from the given server to the client machine. 5. The method as described in claim 1 further including the step of: in response to a connection request from the given client machine that terminates the session, inactivating the session identifier. 6. The method as described in claim 1 wherein the given client machine include a browser. 7. The method as described in claim 1 wherein each of the servers in the pool supports a similar set of objects. 8. The method as described in claim 1 wherein the session identifier is associated with a given server as a function of a load balancing protocol. 9. A method for managing connection requests to a pool of servers, comprising the steps of: responsive to a connection request from a client machine to initiate a user session, associating a user session originating from a client machine with a given server in the pool in accordance with a load balancing protocol;returning a redirection response to the client machine for the connection request; andduring the user session, receiving at the given server any additional connection requests originating from the client machinegenerating a virtual URL by modifying a given URL to include a session identifier;using the virtual URL to redirect the connection request to the given server. 10. The method as described in claim 9 further including the steps of: inactivating the virtual URL upon completion of the user session. 11. The method as described in claim 9 wherein all data returned from given server to the client machine includes the session identifier. 12. The method as described in claim 9 wherein each of the servers in the pool supports a similar set of given projects. 13. The method as described in claim 9 wherein each client machine include a Web browser. 14. A computer program product stores a computer-readable storage memory for managing connection requests to a pool of servers, comprising the steps of: means, responsive to a connection request from a client machine to initiate a user session, for associating a user session originating from a client machine with a given server in the pool in accordance with a load balancing protocol;means for returning a redirection response to the client machine for the connection request;means operative during the user session for receiving at the given server any additional connection requests originating from the client machine;means for generating a virtual URL by modifying a given URL to include a session identifier;means for redirecting a given connection request to the given server using the virtual URL. 15. The computer program product as described in claim 14 further including: means for inactivating the virtual URL upon completion of the user session. 16. A server for managing a pool of servers at a Web site identified by a given URL, comprising: a processor;an operating system;a load balancing routine; anda redirector routine for managing HTTP connection requests to the Web site, comprising:means responsive to a connection request from a client machine to initiate a user session for associating a user session originating from a client machine with a given server in the pool in accordance with the load balancing routine;means for returning a redirection response to the client machine for the connection request; andmeans operative during the user session for redirecting to the given server any additional connection requests originating from the client machine;means for generating a virtual URL by modifying a given URL to include a session identifier; means for redirecting a given connection request to the given server using the virtual URL. 17. The server as described in claim 16 wherein the redirector further includes: means for inactivating the virtual URL upon completion of the user session. 18. A method of managing a pool of servers at a Web site identified by a given URL, comprising the steps of: in response to a connection request containing the given URL form a given client machine that initiates a session, associating a session identifier with a given server in the pool of servers;generating a virtual URL by modifying the given URL from the connection request to include the session identifier;generating a redirection response comprising the virtual URL; andsending the redirection response to the given client machine to redirect the connection request to the given server.

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[미국특허] Method and system for using virtual URLs for load balancing 원문보기

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