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System and method for providing three-way failover for a transactional database

  • US 20070260696A1
  • Filed: 05/02/2006
  • Published: 11/08/2007
  • Est. Priority Date: 05/02/2006
  • Status: Active Grant
First Claim
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1. A method for providing three-way failover for a server group, comprising:

  • identifying at least one of a master server failure or a master server shutdown;

    designating a first replication server as a new master server;

    copying a set of data from a second replication server to a new replication server while the first replication server functions as the new master server;

    receiving new data at the server group and saving the new data at the new master server;

    saving the new data in a queue at the second replication server until the set of data stored on the second replication server has been copied to the new replication server;

    reading the new data saved in the queue and applying the new data to the second replication server after the set of data stored on the second replication server has been copied to the new replication server; and

    reading the new from the new master server and applying the new data to the second replication server after the set of data stored on the second replication server has been copied to the new replication server.

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