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Recovery procedure for a dynamically reconfigured quorum group of processors in a distributed computing system

  • US 6,487,678 B1
  • Filed: 08/31/1999
  • Issued: 11/26/2002
  • Est. Priority Date: 08/31/1999
  • Status: Expired due to Fees
First Claim
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1. A method for recovering a current state of a quorum group of processors dynamically reconfigured while at least one processor of said quorum group of processors was unavailable, said method comprising:

  • obtaining, for said at least one processor, said current state of said dynamically reconfigured quorum group of processors from one or more processors of said quorum group of processors; and

    wherein each processor of said quorum group of processors includes an incarnation number and a list of member processors which resulted from a commit process;

    wherein said commit process resulted in said incarnation number and required participation by a majority of processors of said quorum group of processors; and

    wherein said obtaining comprises checking said one or more processors of said quorum group of processors for incarnation numbers and lists of member processors which resulted from the commit processes.

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