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QUORUM-BASED POWER-DOWN OF UNRESPONSIVE SERVERS IN A COMPUTER CLUSTER

  • US 20080301491A1
  • Filed: 08/15/2008
  • Published: 12/04/2008
  • Est. Priority Date: 11/04/2004
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • at least one processor;

    a memory coupled to the at least one processor;

    a server process residing in the memory and executed by the at least one processor;

    a cluster engine residing in the memory and executed by the at least one processor, the cluster engine handling communications between the server process and other servers in a cluster; and

    a quorum-based server power-down mechanism residing in the memory and executed by the at least one processor, the quorum-based server power-down mechanism determining whether the server process is part of a group of servers that include a majority of servers in the cluster, and if so, the quorum-based server power-down mechanism determines whether a manager of the cluster failed when an indication of a server failure is received, and if so, the quorum-based server power-down mechanism issues at least one command to power down all unresponsive servers in the cluster, wherein an unresponsive server is a server that fails to send a periodic message that indicates the server is functioning properly, and if the manager of the cluster did not fail, the quorum-based server power-down mechanism issues at least one command to power down a server corresponding to the received indication of server failure.

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