Web serving system

• US 6,480,893 B2
• Filed: 04/21/2000
• Issued: 11/12/2002
• Est. Priority Date: 07/25/1996
• Status: Expired due to Term

• Current Assignee: Xcelera Inc.
• Original Assignee: Clearway Acquisition, Inc.
• Inventors: Kriegsman, Mark E.
• Primary Examiner(s): Maung, Zarni
• Application Number:
  US09/553,659
• Publication Number:
  US 20010018709A1
• Time in Patent Office: 935 Days
• Field of Search: 709/226, 709/229, 709/219, 709/203, 709/231, 709/232
• US Class Current: 709/226
• CPC Class Codes: G06F 16/10 File systems; File servers
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/10015 Access to distributed or replicated servers, e.g. using brokers
• 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 67/101 based on network conditions
• CPC Class Codes: H04L 67/1014 based on the content of a request
• CPC Class Codes: H04L 67/1021 based on client or server locations
• CPC Class Codes: H04L 67/1023 based on a hash applied to IP addresses or costs
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

The present invention is a collaborative server system for providing high speed data transmission of data files across a communications network which, in brief summary, comprises a communications network, a primary server having a primary communications component for connecting the primary server to the communications network, and at least one secondary server having a secondary communications component for connecting the secondary server to the communications network. The primary server and the at least one secondary server include storage component for storing data files. The data files include static data files and/or dynamic data files. The storage component of the primary server further stores at least one look-up table having specific criteria pertaining to the data files and the primary and at least one secondary servers. The processor component of the primary server is effective to receive a request for specific data files from a network user, to look-up specific criteria in the look-up table pertaining to the specific data files, and to allocate transmission of each specific data file between the primary server and the at least one secondary server based on the specific criteria.

Claims

1. A method of serving, to a user, a requested data file having a dynamic component and an embedded static component, said embedded static component being associated with a modified tag, said modified tag having been generated from an original tag by inclusion of an embedded reference pointing to an address from which a best instantiation of said embedded static component can be derived, said method comprising the steps of:

serving said dynamic component to said user from a primary web server;

deriving a secondary web server from said embedded reference; and

serving said embedded static component to said user from said secondary web server.

2. The method of claim 1 further comprising the step of selecting said secondary web server to be closer to said user than said primary web server.

3. The method of claim 1 wherein said step of deriving said secondary web server from said embedded reference comprises the step of applying a function to said embedded static component.

4. The method of claim 3 wherein said step of applying a function comprises the step of deriving, from said modified tag, information selected from a group consisting of size, popularity, creation, and object type.

5. The method of claim 1 further comprising the step of incorporating, into said original tag, version information uniquely identifying said embedded static component.

6. The method of claim 1 wherein said dynamic component is represented in HTML markup language.

7. The method of claim 1 further comprising the step of modifying said modified tag when said primary web server modifies said requested data file.

8. The method of claim 1 further comprising the step of incorporating, into said embedded reference, version information indicative of whether said embedded static component has been modified.

9. The method of claim 8 further comprising the step of modifying said modified tag when said primary web server modifies said requested data file.

10. A method of serving a requested data file having a dynamic component and an embedded static component, said embedded static component being associated with a modified tag, said modified tag having been generated from an original tag by inclusion of an embedded reference pointing to an address from which a best instantiation of said embedded static component can be derived, said method comprising the steps of:

in response to a request from a first user,

serving said dynamic component to said first user from a primary web server, and

serving a first best-instantiation of said static component to said first user from a first secondary-web-server having a first address derived from said embedded reference; and

in response to a request from a second user,

serving said dynamic component to said second user from said primary web server, and

serving a second best-instantiation of said static component to said second user from a second secondary-web-server having a second address derived from said embedded reference.

11. The method of claim 10 further comprising the step of selecting said requested data file to be a web page.

12. The method of claim 10 further comprising the step of selecting said dynamic component of said requested data file to be represented in HTML.

13. The method of claim 10 wherein said original tag is selected to be a URL and said modified tag is selected to be a modified URL.

14. The method of claim 13 wherein said modified URL includes information contained in said original URL.

15. A method of serving a requested data file having a dynamic component and an embedded static component, said embedded static component being associated with a modified tag, said modified tag having been generated from an original tag by inclusion of an embedded reference pointing to an address from which a best instantiation of said embedded static component can be derived, said method comprising the steps of:

in response to a request from a first user and a second user, serving said dynamic component to said first user and to said second user from a primary web server; and

deriving, from said modified tag, a first best-instantiation of said embedded static component and a second best-instantiation of said embedded static component;

serving said first best-instantiation of said static component to said first user from a first secondary-web-server,

serving said second best-instantiation of said static component to said second user from a second secondary-web-server.

16. The method of claim 15 further comprising the step of selecting said requested data file to be a web page.

17. The method of claim 15 further comprising the step of selecting said dynamic component of said requested data file to be represented in HTML.

18. The method of claim 15 wherein said original tag is selected to be a URL and said modified tag is selected to be a modified URL.

19. The method of claim 18 wherein said modified URL includes information contained in said original URL.

20. A method for serving a web page to a user, the web page including a dynamic component and an embedded static component, said embedded static component identified by a tag containing information leading to a primary web server, said method comprising the steps of:

rewriting said tag to generate a modified tag, said modified tag incorporating, in addition to said information leading to said primary web server, information leading to a secondary web server, said information leading to said primary web server being available for retrieval of said embedded static component from said primary web server if an instantiation of said of said embedded static component is unavailable from said secondary web server; and

in response to a request for said web page from a user, serving said web page to said user.

21. The method of claim 20 wherein said tag is a URL.

22. The method of claim 20 wherein said dynamic component is an HTML file.

23. A method for selecting an optimal web server for delivery, to a user, of a static data file, said static data file being identified by a URL embedded in a web page, said method comprising the steps of:

reading, from said web page, said URL identifying said static data file;

determining, on the basis of said URL, an address leading to an optimal web server for delivery of said static data file; and

altering said URL to incorporate information indicative of said address leading to said optimal web server address.

24. A collaborative hosting system for distribution of data files on a computer network, said data files including a dynamic component and an embedded static component, said embedded document being identified by a tag, said system comprising

a plurality of secondary web servers for storing instantiations of said embedded static component,

a primary web server for storing said dynamic component,

an optimizing process for selecting from said plurality of secondary web servers, an optimal web server, and

a tagging process for tagging said embedded static component with information leading to said optimal web server.