WO2002017070A3 - Method and apparatus for atomic file look-up - Google Patents

Method and apparatus for atomic file look-up Download PDF

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Publication number
WO2002017070A3
WO2002017070A3 PCT/US2001/041844 US0141844W WO0217070A3 WO 2002017070 A3 WO2002017070 A3 WO 2002017070A3 US 0141844 W US0141844 W US 0141844W WO 0217070 A3 WO0217070 A3 WO 0217070A3
Authority
WO
WIPO (PCT)
Prior art keywords
file
atomic
look
file system
application
Prior art date
Application number
PCT/US2001/041844
Other languages
French (fr)
Other versions
WO2002017070A2 (en
Inventor
Ingo Molnar
Original Assignee
Red Hat Inc
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 Red Hat Inc filed Critical Red Hat Inc
Priority to DE60141480T priority Critical patent/DE60141480D1/en
Priority to AU2001287203A priority patent/AU2001287203A1/en
Priority to JP2002521695A priority patent/JP4317361B2/en
Priority to EP01966716A priority patent/EP1358577B1/en
Priority to AT01966716T priority patent/ATE459927T1/en
Publication of WO2002017070A2 publication Critical patent/WO2002017070A2/en
Publication of WO2002017070A3 publication Critical patent/WO2002017070A3/en

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
    • G06F9/466—Transaction processing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/10—File systems; File servers
    • 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
    • G06F9/465—Distributed object oriented systems
    • 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
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • 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
    • H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
    • H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
    • H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
    • H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
    • 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
    • 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

Abstract

Method and apparatus for atomic file look-up. An atomic look-up operation (407) allows an application (405) to find out whether a file is opened atomically based on whether or not the file path is present in a file system namespace cache (406). If not, the file open request can be redirected, avoiding or minimizing impacts to the scheduling of various operations involved in executing an application. The request can be redirected by the application to a process that includes blocking point handling (408, 409). An operating system according to the present invention includes a file system (400) including a file system namespace (404), and an operating system kernel (402) is operatively connected to the file system (400). The operating system kernel includes the file system namespace cache and the atomic look-up operation.
PCT/US2001/041844 2000-08-24 2001-08-23 Method and apparatus for atomic file look-up WO2002017070A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE60141480T DE60141480D1 (en) 2000-08-24 2001-08-23 METHOD AND DEVICE FOR THE ATOMIC REVIEW OF A FILE
AU2001287203A AU2001287203A1 (en) 2000-08-24 2001-08-23 Method and apparatus for atomic file look-up
JP2002521695A JP4317361B2 (en) 2000-08-24 2001-08-23 Method and apparatus for atomic file retrieval
EP01966716A EP1358577B1 (en) 2000-08-24 2001-08-23 Method and apparatus for atomic file look-up
AT01966716T ATE459927T1 (en) 2000-08-24 2001-08-23 METHOD AND APPARATUS FOR ATOMIC FILE LOOKUP

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22751000P 2000-08-24 2000-08-24
US60/227,510 2000-08-24

Publications (2)

Publication Number Publication Date
WO2002017070A2 WO2002017070A2 (en) 2002-02-28
WO2002017070A3 true WO2002017070A3 (en) 2003-04-24

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/US2001/041845 WO2002017597A1 (en) 2000-08-24 2001-08-23 Method and apparatus for handling communication requests at a server without context switching
PCT/US2001/041844 WO2002017070A2 (en) 2000-08-24 2001-08-23 Method and apparatus for atomic file look-up

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2001/041845 WO2002017597A1 (en) 2000-08-24 2001-08-23 Method and apparatus for handling communication requests at a server without context switching

Country Status (8)

Country Link
US (4) US6886004B2 (en)
EP (2) EP1312195B1 (en)
JP (3) JP2004507825A (en)
AT (2) ATE459927T1 (en)
AU (2) AU2001287204A1 (en)
DE (2) DE60108884T2 (en)
TW (2) TW517190B (en)
WO (2) WO2002017597A1 (en)

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Also Published As

Publication number Publication date
US20020091868A1 (en) 2002-07-11
JP4317361B2 (en) 2009-08-19
JP2004507815A (en) 2004-03-11
US6988142B2 (en) 2006-01-17
EP1358577B1 (en) 2010-03-03
JP2004507825A (en) 2004-03-11
US7082424B2 (en) 2006-07-25
AU2001287204A1 (en) 2002-03-04
WO2002017070A2 (en) 2002-02-28
US20050171981A1 (en) 2005-08-04
DE60108884D1 (en) 2005-03-17
AU2001287203A1 (en) 2002-03-04
JP4778493B2 (en) 2011-09-21
JP2008102935A (en) 2008-05-01
TW535065B (en) 2003-06-01
US8631092B2 (en) 2014-01-14
TW517190B (en) 2003-01-11
DE60108884T2 (en) 2006-01-19
ATE459927T1 (en) 2010-03-15
DE60141480D1 (en) 2010-04-15
WO2002017597A1 (en) 2002-02-28
EP1312195B1 (en) 2005-02-09
US20020049834A1 (en) 2002-04-25
ATE289146T1 (en) 2005-02-15
US20020059330A1 (en) 2002-05-16
EP1358577A2 (en) 2003-11-05
US6886004B2 (en) 2005-04-26
EP1312195A1 (en) 2003-05-21

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