[특허]Techniques for maintaining fault tolerance for software programs in a clustered computer system

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-015/16
출원번호	US-0346000 (1999-06-30)
발명자 / 주소	Roy P. D'Souza
출원인 / 주소	B-Hub, Inc.
대리인 / 주소	Beyer Weaver & Thomas, LLP
인용정보	피인용 횟수 : 47 인용 특허 : 30

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A method for maintaining a predefined acceptable fault tolerance level for a plurality of software modules implementing a software program running on a first plurality of computers coupled together in a cluster configuration in a first cluster in a clustered computer system. The first plurality of c

A method for maintaining a predefined acceptable fault tolerance level for a plurality of software modules implementing a software program running on a first plurality of computers coupled together in a cluster configuration in a first cluster in a clustered computer system. The first plurality of computers being coupled to a first intelligent director agent. The method includes tracking, using the first intelligent director agent, status of the software modules running on the first plurality of computers. The method also includes ascertaining a fault tolerance level associated with the software program, with the ascertaining being ascertained by examining the status of the software modules running on the first plurality of computers. If the fault tolerance level is below the predefined acceptable fault tolerance level, the method also includes searching for a first suitable computer among the first plurality of computers to load another module of the software program thereon. The first suitable computer represents a computer of the first plurality of computers that does not have a module of the software program running thereon. The first suitable computer is compatible to execute the another copy of the computer program. If the first suitable computer is available, the method further includes loading the another module of the software program on the first suitable computer, registering the first suitable computer as a computer capable of servicing transaction requests pertaining to the software program after the another module of the software program is loaded onto the first suitable computer, and routing the transaction requests pertaining to the software program to the first suitable computer after the registering.

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1. A method for maintaining a predefined acceptable fault tolerance level for a plurality of software modules implementing a software program running on a first plurality of computers coupled together in a cluster configuration in a first cluster in a clustered computer system, said first plurality

1. A method for maintaining a predefined acceptable fault tolerance level for a plurality of software modules implementing a software program running on a first plurality of computers coupled together in a cluster configuration in a first cluster in a clustered computer system, said first plurality of computers being coupled to a first intelligent director agent, said method comprising:tracking, using said first intelligent director agent, status of said software modules running on said first plurality of computers; ascertaining a fault tolerance level associated with said software program, said ascertaining being ascertained by examining said status of said software modules running on said first plurality of computers; if said fault tolerance level is below said predefined acceptable fault tolerance level, searching for a first suitable computer among said first plurality of computers to load another module of said software program thereon, said first suitable computer representing a computer of said first plurality of computers that does not have a module of said software program running thereon, said first suitable computer being compatible to execute said another module of said software program; and if said first suitable computer is available, loading said another module of said software program on said first suitable computer, registering said first suitable computer as a computer capable of servicing transaction requests pertaining to said software program after said another module of said software program is loaded onto said first suitable computer, and routing said transaction requests pertaining to said software program to said first suitable computer after said registering.

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