[특허]File lock management in a distributed data processing system

File lock management in a distributed data processing system 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-013/00 G06F-012/16
출원번호	US-0345020 (1994-11-23)
발명자 / 주소	Henson Larry W. (Austin TX) Johnson Donavon W. (Georgetown TX) Morgan Stephen P. (Mahopac NY) Smith Todd A. (Austin TX)
출원인 / 주소	International Business Machines Corporation (Armonk NY 02)
인용정보	피인용 횟수 : 41 인용 특허 : 0

초록 ▼

A distributed data processing system and method in which locks on a file are supported by a data structure that resides on either a client machine or on the file\s server. When only a single client\s processes are locking a file, the data structure can reside on that client. Whenever a plurality of client machines attempt to place locks on a file, the data structure is moved to the server; this forces the clients locking the file to communicate with the server when performing lock operations. When a client requests a lock from the server that cannot be granted because of an existing blocking lock, the client is informed that it should put the requesting process asleep awaiting a retry notification. When there is a change in the locks on the file that might allow such a client\s now sleeping process to acquire the lock, the server sends a retry notice to the client. This awakens the sleeping process at the client, and the process then reattempts the lock operation by sending a message to the server.

대표청구항 ▼

In a distributed data processing system in which at least one client machine has access to a file stored at a server of said distributed data processing system, a computer storage containing a program for access by a data processing system for locking a first portion of said file stored at said server of said distributed data processing system, said computer program comprising: first data structure instruction means accessible by said data processing system for receiving, at said server, a request by one client machine to lock said first portion of said file; second data structure instruction means accessible by said data processing system, and responsive to said first data structure instruction means, for detecting, at said server, whether any other client machine has locked any portion of said file; third data structure instruction means accessible by said data processing system, and connected to said second data structure instruction means, for replying to said one client machine that said one client machine can maintain a lock on said first portion of said file locally while no other client machine attempts to lock any portion of said file; and fourth data structure instruction means accessible by said data processing system, and responsive to said third data structure instruction means, for establishing, at said one client machine, a data structure describing said lock in response to said third data structure instruction means that said one client machine can maintain said lock locally.

이 특허를 인용한 특허 (41)

Holt, Robert Douglas; McBride, Thomas M., Apparatus and method for file locking for computer programs that use different size locks.
상세보기
Holdsworth Simon Antony James,GBX ; Houston Iain Stuart Caldwell,GBX, Apparatus, method and computer program for providing arbitrary locking requesters for controlling concurrent access to server resources.
상세보기
Stone Jeremy Daniel, Automation and dial-time checking of system configuration for internet.
상세보기
Thaler Wolfgang J. ; Bertoni Jonathan L., Caching virtual memory locks.
상세보기
Aron, Mohit; Shanmuganathan, Ganesha, Concurrent access and transactions in a distributed file system.
상세보기
Aron, Mohit; Shanmuganathan, Ganesha, Concurrent access and transactions in a distributed file system.
상세보기
Jiang,Xiaoye; Ma,Gang; Zheng,Jiannan, Delegation of metadata management in a storage system by leasing of free file system blocks and i-nodes from a file system owner.
상세보기
Jiang, Xiaoye; Ma, Gang; Vahalia, Uresh K., Delegation of metadata management in a storage system by leasing of free file system blocks from a file system owner.
상세보기
Ulrich,Thomas R.; Schweitzer,James R.; Bolstad,Gregory D.; Randall,Jay G.; Staub,John R.; Priester,George W., Dynamic redistribution of parity groups.
상세보기
Williams Thomas R. ; Cape Charles J. ; Jackson Richard T., File data synchronizer in a distributed data computer network.
상세보기
Xu Yikang ; Vahalia Uresh K. ; Jiang Xiaoye ; Gupta Uday ; Tzelnic Percy, File server system using file system storage, data movers, and an exchange of meta data among data movers for file locking and direct access to shared file systems.
상세보기
Hutchison, Robert Brian; Shih, Stuart Te-Hui, File system locking.
상세보기
Ulrich,Thomas R.; Schweitzer,James R.; Bolstad,Gregory D.; Randall,Jay G.; Staub,John R.; Priester,George W., File system metadata describing server directory information.
상세보기
Wikstrom Claes,SEX ; Mattsson H.ang.kan,SEX, Lingering locks for replicated data objects.
상세보기
Walker, Michael Leo, Lock and transaction management.
상세보기
Layton, Jeffrey T.; Paris, Eric L.; Horman, Neil R. T., Lost computing resource notification.
상세보기
Walker, Michael Leo, Managing locks and transactions.
상세보기
Walker, Michael Leo, Managing locks and transactions.
상세보기
Walker,Michael Leo, Managing locks and transactions.
상세보기
Fridella, Stephen A.; Jiang, Xiaoye; Faibish, Sorin; Forecast, John, Metadata offload for a file server cluster.
상세보기
Story Glenn ; Sodhi Amardeep S. ; Tom Gary ; Yee Mon For, Method and apparatus for interfacing with a stateless network file system server.
상세보기
Tomas Stephen P. ; Joshi Sunil P., Method and apparatus for refreshing file locks to minimize conflicting accesses to data files.
상세보기
Matena Vladimir ; Shirriff Kenneth William ; Murphy Declan J., Method and system for achieving high availability in networked computer systems.
상세보기
Bray, Michael A.; Corsberg, Daniel R., Method and system for allowing multiple users to edit a hierarchical data structure.
상세보기
Oshri, Ofer; Danieli, Nadav; Hamburger, Menny, Method for managing lock resources in a distributed storage system.
상세보기
Clifton E. Grim, III ; Brian N. Marquette ; Christopher B. Plock ; Mark B. Stevens ; Michael Lindsey Williams ; John D. Wilson, Method of and system for managing documents in a bandwidth constrained environment.
상세보기
Bertoni Jonathan L., Method, product, and structure for flexible range locking of read and write requests using shared and exclusive locks,.
상세보기
Walker, Michael Leo, Method, system, and program for lock and transaction management.
상세보기
Walker,Michael Leo, Method, system, and program for lock and transaction management.
상세보기
Walker, Michael Leo, Method, system, and program for managing locks and transactions.
상세보기
Ahuja, Chetan; Filz, Frank Stewart; Palmer, John Davis, Method, system, and program for managing locks enabling access to a shared resource.
상세보기
Krishnamurthy, Rajaram B., Methods and systems for migrating network resources to improve network utilization.
상세보기
Krishnamurthy, Rajaram B., Methods and systems for migrating network resources to improve network utilization.
상세보기
McLaughlin, Richard J.; Sakaguchi, Cynthia; Aberg, Farangis; de Azevedo, Marcelo M., Networked system for assuring synchronous access to critical facilities.
상세보기
Patricia Grewell ; Terry N. Hayes ; William Bridge ; Hans Karten NL, Resource management using resource domains.
상세보기
Fayed, Ayman A.; Byrd, Russell; Haroun, Baher, System and method for common mode translation.
상세보기
Senator Steven T., System and method for file system fix-on-panic for a computer operating system.
상세보기
Ulrich, Thomas R.; Schweitzer, James R.; Bolstad, Gregory D.; Randall, Jay G.; Staub, John R., Systems and methods for load balancing drives and servers.
상세보기
Ulrich, Thomas R.; Schweitzer, James R.; Bolstad, Gregory D.; Randall, Jay G.; Staub, John R., Systems and methods for load balancing drives and servers by pushing a copy of a frequently accessed file to another disk drive.
상세보기
Ulrich, Thomas R.; Schweitzer, James R.; Bolstad, Gregory D.; Randall, Jay G.; Staub, John R., Systems and methods for load balancing drives and servers by pushing a copy of a frequently accessed file to another disk drive.
상세보기
Ulrich, Thomas R.; Schweitzer, James R.; Bolstad, Gregory D.; Randall, Jay G.; Staub, John R.; Priester, Wilbur George, Systems and methods for storing parity groups.
상세보기

IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

File lock management in a distributed data processing system 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

이 특허를 인용한 특허 (41)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트

연합인증

File lock management in a distributed data processing system 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

전체(0) 논문(0) 특허(0) 보고서(0)

전체(0) 논문(0) 특허(0) 보고서(0)

이 특허를 인용한 특허 (41)

관련 콘텐츠

특허 원문 보기

IPC 상위 출원인

AI-Helper ※ AI-Helper는 오픈소스 모델을 사용합니다.

선택된 텍스트