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Database system configured for automatic failover with no data loss

  • US 20070124348A1
  • Filed: 11/22/2006
  • Published: 05/31/2007
  • Est. Priority Date: 11/30/2005
  • Status: Active Grant
First Claim
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1. An automatic failover configuration comprising:

  • configuration participants including a primary database system that produces redo data, a standby database system that receives the redo data, and an observer;

    a messaging system for sending and receiving messages among the participants, and in each participant, a copy of configuration state of the automatic failover configuration that specifies one of a plurality of configuration states, the messages being used to propagate a most recent configuration state among the participants.

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