CA2320240A1 - Method and apparatus for transferring data from the cache of one node to the cache of another node - Google Patents

Method and apparatus for transferring data from the cache of one node to the cache of another node Download PDF

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Publication number
CA2320240A1
CA2320240A1 CA002320240A CA2320240A CA2320240A1 CA 2320240 A1 CA2320240 A1 CA 2320240A1 CA 002320240 A CA002320240 A CA 002320240A CA 2320240 A CA2320240 A CA 2320240A CA 2320240 A1 CA2320240 A1 CA 2320240A1
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CA
Canada
Prior art keywords
resource
cache
version
holder
node
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
CA002320240A
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French (fr)
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CA2320240C (en
Inventor
Roger J. Bamford
Boris Klots
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.)
Oracle International Corp
Original Assignee
Oracle Corporation
Roger J. Bamford
Boris Klots
Oracle International Corporation (Oic)
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 Oracle Corporation, Roger J. Bamford, Boris Klots, Oracle International Corporation (Oic) filed Critical Oracle Corporation
Priority to CA002448050A priority Critical patent/CA2448050C/en
Publication of CA2320240A1 publication Critical patent/CA2320240A1/en
Application granted granted Critical
Publication of CA2320240C publication Critical patent/CA2320240C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1471—Saving, restoring, recovering or retrying involving logging of persistent data for recovery
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2201/00—Indexing scheme relating to error detection, to error correction, and to monitoring
    • G06F2201/80—Database-specific techniques
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/912—Applications of a database
    • Y10S707/913—Multimedia
    • Y10S707/915—Image
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99931—Database or file accessing
    • Y10S707/99938—Concurrency, e.g. lock management in shared database
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99951—File or database maintenance
    • Y10S707/99952—Coherency, e.g. same view to multiple users
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99951—File or database maintenance
    • Y10S707/99952—Coherency, e.g. same view to multiple users
    • Y10S707/99953—Recoverability
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99951—File or database maintenance
    • Y10S707/99952—Coherency, e.g. same view to multiple users
    • Y10S707/99954—Version management

Abstract

A method and apparatus are provided for transferring a resource from the cache of one database server to the cache of another database server without first writing the resource to disk. When a database server (Requestor) desires to modify a resource, the Requestor asks for the current version of the resource. The database server that has the current version (Holder) directly ships the current version to the Requestor. Upon shipping the version, the Holder loses permission to modify the resource, but continues to retain the resource in memory. When the retained version of the resource, or a later version thereof, is written to disk, the Holder can discard the retained version of the resource. Otherwise, the Holder does not discard the retained version.
Using this technique, single-server failures are recovered without having to merge the recovery logs of the various database servers that had access to the resource.
CA002320240A 1998-02-13 1999-02-12 Method and apparatus for transferring data from the cache of one node to the cache of another node Expired - Lifetime CA2320240C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002448050A CA2448050C (en) 1998-02-13 1999-02-12 Method and apparatus for transferring data from the cache of one node to the cache of another node

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US7458798P 1998-02-13 1998-02-13
US60/074,587 1998-11-24
US09/199,120 US6353836B1 (en) 1998-02-13 1998-11-24 Method and apparatus for transferring data from the cache of one node to the cache of another node
US09/199,120 1998-11-24
PCT/US1999/002965 WO1999041664A1 (en) 1998-02-13 1999-02-12 Method and apparatus for transferring data from the cache of one node to the cache of another node

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002448050A Division CA2448050C (en) 1998-02-13 1999-02-12 Method and apparatus for transferring data from the cache of one node to the cache of another node

Publications (2)

Publication Number Publication Date
CA2320240A1 true CA2320240A1 (en) 1999-08-19
CA2320240C CA2320240C (en) 2006-01-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CA002320240A Expired - Lifetime CA2320240C (en) 1998-02-13 1999-02-12 Method and apparatus for transferring data from the cache of one node to the cache of another node

Country Status (8)

Country Link
US (7) US6353836B1 (en)
EP (1) EP1055173B1 (en)
JP (1) JP3815967B2 (en)
AU (1) AU768747B2 (en)
CA (1) CA2320240C (en)
DE (6) DE69929095T2 (en)
HK (5) HK1061724A1 (en)
WO (1) WO1999041664A1 (en)

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Also Published As

Publication number Publication date
DE69917333T2 (en) 2005-05-12
HK1032642A1 (en) 2001-07-27
HK1041534B (en) 2009-04-24
DE69939226D1 (en) 2008-09-11
US6564230B2 (en) 2003-05-13
DE69917333D1 (en) 2004-06-17
CA2320240C (en) 2006-01-24
DE69917342T2 (en) 2005-05-12
US6567827B2 (en) 2003-05-20
US20010037343A1 (en) 2001-11-01
DE69929095D1 (en) 2006-01-26
DE69929095T2 (en) 2006-08-17
US6564234B2 (en) 2003-05-13
HK1039812B (en) 2004-10-08
HK1039812A1 (en) 2002-05-10
US6411968B2 (en) 2002-06-25
WO1999041664A1 (en) 1999-08-19
US6353836B1 (en) 2002-03-05
US20010042066A1 (en) 2001-11-15
EP1055173B1 (en) 2002-04-17
DE69918470T2 (en) 2005-08-18
HK1041535B (en) 2004-10-08
US6507853B2 (en) 2003-01-14
US20010037326A1 (en) 2001-11-01
US6609136B2 (en) 2003-08-19
DE69917342D1 (en) 2004-06-17
HK1041535A1 (en) 2002-07-12
DE69901291T2 (en) 2002-12-05
US20010037342A1 (en) 2001-11-01
US20020016795A1 (en) 2002-02-07
AU2672399A (en) 1999-08-30
JP3815967B2 (en) 2006-08-30
HK1061724A1 (en) 2004-09-30
EP1055173A1 (en) 2000-11-29
DE69918470D1 (en) 2004-08-05
DE69901291D1 (en) 2002-05-23
HK1041534A1 (en) 2002-07-12
US20010047380A1 (en) 2001-11-29
AU768747B2 (en) 2004-01-08
JP2002503846A (en) 2002-02-05

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