CA2231810A1 - Load balancing across the processors of a server computer - Google Patents

Load balancing across the processors of a server computer

Info

Publication number
CA2231810A1
CA2231810A1 CA002231810A CA2231810A CA2231810A1 CA 2231810 A1 CA2231810 A1 CA 2231810A1 CA 002231810 A CA002231810 A CA 002231810A CA 2231810 A CA2231810 A CA 2231810A CA 2231810 A1 CA2231810 A1 CA 2231810A1
Authority
CA
Canada
Prior art keywords
information
processor
processors
block
service
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002231810A
Other languages
French (fr)
Other versions
CA2231810C (en
Inventor
Andrew James Stanford-Clark
Sean James Martin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2231810A1 publication Critical patent/CA2231810A1/en
Application granted granted Critical
Publication of CA2231810C publication Critical patent/CA2231810C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
    • G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
    • G06F9/505—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals considering the load
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols

Abstract

The present invention relates to a server computer connectable to a network and having a plurality of processors (20, 30, 40) arranged to provide a service to one or more client computers connected to the network. The service involves the provision of blocks of information to a client computer (50), and the processors have access to a data storage (120) in which data for the blocks of information is stored.
According to preferred embodiments of the invention, each processor in the server has block retrieval means (80), employed in response to a request from a client computer (50) for a particular block of information from that processor, to retrieve data from the data storage (120) in order to construct a file representing the requested block of information, the file including references to subsequent blocks of information requestable by the client (50). Additionally load determining means (100) is provided of periodically determining activity data for the processor for inclusion in a load distribution record maintained for all of the processors of the server. Decision means (90) is then used which, for each reference to a subsequent block of information in the file constructed by the block retrieval means (80), is arranged to determine, based on the load distribution record, which processor should service a request from the client computer (50) for that subsequent block of information, and include an address for that processor in the file constructed by the block retrieval means (80). Once the decision means has completed this process, the file is then sent to the client computer (50). In preferred embodiments, the service being provided is the World Wide Web (WWW) service, and the technique is employed on a parallel Web server providing Web pages to clients over the Internet. By employing the technique of the invention, more effective load balancing across the processors of the Web server is possible, thereby enabling problems such as "toasting" of a particular processor to be averted.
CA002231810A 1996-01-26 1996-12-04 Load balancing across the processors of a server computer Expired - Lifetime CA2231810C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9601559.9 1996-01-26
GB9601559A GB2309558A (en) 1996-01-26 1996-01-26 Load balancing across the processors of a server computer
PCT/GB1996/002983 WO1997029423A1 (en) 1996-01-26 1996-12-04 Load balancing across the processors of a server computer
US08/770,142 US5867706A (en) 1996-01-26 1996-12-19 Method of load balancing across the processors of a server

Publications (2)

Publication Number Publication Date
CA2231810A1 true CA2231810A1 (en) 1997-08-14
CA2231810C CA2231810C (en) 2004-05-25

Family

ID=26308531

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002231810A Expired - Lifetime CA2231810C (en) 1996-01-26 1996-12-04 Load balancing across the processors of a server computer

Country Status (14)

Country Link
US (1) US5867706A (en)
EP (1) EP0880739B1 (en)
JP (1) JP2953591B2 (en)
CN (1) CN1091277C (en)
BR (1) BR9612485A (en)
CA (1) CA2231810C (en)
CZ (1) CZ289563B6 (en)
DE (1) DE69602461T2 (en)
ES (1) ES2131415T3 (en)
GB (1) GB2309558A (en)
HU (1) HU225072B1 (en)
PL (1) PL183401B1 (en)
RU (1) RU2156546C2 (en)
WO (1) WO1997029423A1 (en)

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ES2131415T3 (en) 1999-07-16
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EP0880739A1 (en) 1998-12-02
HU225072B1 (en) 2006-06-28
HUP9903820A3 (en) 2001-05-28
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DE69602461D1 (en) 1999-06-17
DE69602461T2 (en) 1999-12-16
US5867706A (en) 1999-02-02
JP2953591B2 (en) 1999-09-27
BR9612485A (en) 1999-07-13
RU2156546C2 (en) 2000-09-20
PL183401B1 (en) 2002-06-28
GB9601559D0 (en) 1996-03-27
CZ232498A3 (en) 1998-12-16
CN1202971A (en) 1998-12-23
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EP0880739B1 (en) 1999-05-12
CA2231810C (en) 2004-05-25
HUP9903820A2 (en) 2000-03-28
WO1997029423A1 (en) 1997-08-14
CN1091277C (en) 2002-09-18

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