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Failover and recovery for replicated data instances

  • US 8,595,547 B1
  • Filed: 11/18/2011
  • Issued: 11/26/2013
  • Est. Priority Date: 10/26/2009
  • Status: Expired due to Fees
First Claim
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1. A computer-implemented method of managing recovery of a replicated instance for a relational database instance from a control environment, comprising:

  • under control of one or more computer systems configured with executable instructions,communicating with a primary instance replica and a secondary instance replica in a data environment using a monitoring component of a separate control environment, one or more responses received by the monitoring component including status information and data generation information for a respective one of the primary instance replica or the secondary instance replica; and

    in response to the monitoring component being unable to communicate with the primary instance replica or the secondary instance replica,determining failure information, the failure information indicating whether the primary instance replica and the secondary instance replica are able to communicate with each other and whether the primary instance replica and the secondary instance replica have common data generation information; and

    determining whether to perform a failover operation or a recover process based at least in part on the failure information.

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