RETRIEVING A HYPERTEXT MARKUP LANGUAGE FILE FROM A DISPERSED STORAGE NETWORK MEMORY

• US 20120290631A1
• Filed: 04/18/2012
• Published: 11/15/2012
• Est. Priority Date: 05/09/2011
• Status: Active Grant

• Current Assignee: Pure Storage, Inc.
• Original Assignee: Cleversafe Incorporated (International Business Machines Corporation)
• Inventors: Grube, Gary W., Markison, Timothy W.
• Granted Patent: US 10,452,836 B2
• Time in Patent Office: Days
• US Class Current: 707/827
• CPC Class Codes: G06F 11/1076 Parity data used in redundant arrays of independent storages, e.g. in RAID systems
• CPC Class Codes: G06F 16/182 Distributed file systems
• CPC Class Codes: G06F 16/951 Indexing; Web crawling techniques
• CPC Class Codes: G06F 21/445 by mutual authentication, e.g. between devices or programs
• CPC Class Codes: G06F 21/50 Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
• CPC Class Codes: G06F 21/51 at application loading time, e.g. accepting, rejecting, starting or inhibiting executable software based on integrity or source reliability
• CPC Class Codes: G06F 21/60 Protecting data
• CPC Class Codes: G06F 21/604 Tools and structures for managing or administering access control systems
• CPC Class Codes: G06F 21/805 using a security table for the storage sub-system
• CPC Class Codes: G06F 21/82 Protecting input, output or interconnection devices
• CPC Class Codes: G06F 2211/1028 Distributed, i.e. distributed RAID systems with parity
• CPC Class Codes: G06F 3/067 Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
• CPC Class Codes: H04L 61/4511 using domain name system [DNS]
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]

Abstract

A method begins by a dispersed storage (DS) processing module receiving a request for a hypertext markup language (HTML) file, wherein the HTML file is encoded using a dispersed storage (DS) error coding function to produce a plurality of sets of encoded data slices, wherein the plurality of sets of encoded data slices is stored in a dispersed storage network (DSN) memory, and wherein the request includes a universal record locator (URL) associated with the HTML file. The method continues with the DS processing module translating the URL into a source name associated with the plurality of sets of encoded data slices. The method continues with the DS processing module requesting retrieval of a plurality of sets of at least a decode threshold number of encoded data slices of the plurality of sets of encoded data slices from the DSN memory in accordance with the source name.

Claims

1. A method comprises:

receiving a request for a hypertext markup language (HTML) file, wherein the HTML file is encoded using a dispersed storage (DS) error coding function to produce a plurality of sets of encoded data slices, wherein the plurality of sets of encoded data slices is stored in a dispersed storage network (DSN) memory, and wherein the request includes a universal record locator (URL) associated with the HTML file;

translating the URL into a source name associated with the plurality of sets of encoded data slices; and

requesting retrieval of a plurality of sets of at least a decode threshold number of encoded data slices of the plurality of sets of encoded data slices from the DSN memory in accordance with the source name.

2. The method of claim 1 further comprises:

as the plurality of sets of at least a decode threshold number of encoded data slices is being received, reconstructing the HTML file from the plurality of sets of the at least the decode threshold number of encoded data slices.

3. The method of claim 2 further comprises:

outputting the HTML file to a requesting entity in accordance with a hypertext protocol (HTTP).

4. The method of claim 3, wherein the outputting the HTML file further comprises:

outputting the source name to the requesting entity, such that the requesting entity caches the source name for subsequent access of the HTML file.

5. The method of claim 1 further comprises:

generating one or more hypertext protocol (HTTP) response status codes based on response to the requesting retrieval of the plurality of sets of the at least the decode threshold number of encoded data slices;

generating a server response that includes at least one of the HTML file and the one or more HTTP response status codes; and

outputting the server response to a requesting entity.

6. The method of claim 1, wherein the receiving the request further comprises:

receiving a GET request in accordance with a hypertext protocol (HTTP).

7. The method of claim 1, wherein the translating the URL into the source name comprises:

obtaining a root directory associated with the DSN memory;

identifying a pathname based on the URL and the root directory; and

accessing a DSN index utilizing the pathname to retrieve the source name.

8. The method of claim 1, wherein the translating the URL into the source name comprises:

accessing a URL to source name table utilizing the URL to retrieve the source name.

9. A dispersed storage (DS) module comprises:

a first module, when operable within a computing device, causes the computing device to;

receive a request for a hypertext markup language (HTML) file, wherein the HTML file is encoded using a dispersed storage (DS) error coding function to produce a plurality of sets of encoded data slices, wherein the plurality of sets of encoded data slices is stored in a dispersed storage network (DSN) memory, and wherein the request includes a universal record locator (URL) associated with the HTML file;

a second module, when operable within the computing device, causes the computing device to;

translate the URL into a source name associated with the plurality of sets of encoded data slices; and

a third module, when operable within the computing device, causes the computing device to;

request retrieval of a plurality of sets of at least a decode threshold number of encoded data slices of the plurality of sets of encoded data slices from the DSN memory in accordance with the source name.

10. The DS module of claim 9 further comprises:

a fourth module, when operable within the computing device, causes the computing device to;

as the plurality of sets of at least a decode threshold number of encoded data slices is being received, reconstruct the HTML file from the plurality of sets of the at least the decode threshold number of encoded data slices.

11. The DS module of claim 10 further comprises:

a fifth module, when operable within the computing device, causes the computing device to;

output the HTML file to a requesting entity in accordance with a hypertext protocol (HTTP).

12. The DS module of claim 11, wherein the fifth module further functions to output the HTML file by:

outputting the source name to the requesting entity, such that the requesting entity caches the source name for subsequent access of the HTML file.

13. The DS module of claim 9 further comprises:

a sixth module, when operable within the computing device, causes the computing device to;

generate one or more hypertext protocol (HTTP) response status codes based on response to the requesting retrieval of the plurality of sets of the at least the decode threshold number of encoded data slices;

generate a server response that includes at least one of the HTML file and the one or more HTTP response status codes; and

output the server response to a requesting entity.

14. The DS module of claim 9, wherein the first module further functions to receive the request by:

receiving a GET request in accordance with a hypertext protocol (HTTP).

15. The DS module of claim 9, wherein the second module functions to translate the URL into the source name by:

obtaining a root directory associated with the DSN memory;

identifying a pathname based on the URL and the root directory; and

accessing a DSN index utilizing the pathname to retrieve the source name.

16. The DS module of claim 9, wherein the second module further functions to translate the URL into the source name by:

accessing a URL to source name table utilizing the URL to retrieve the source name.