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Amazon Route 53
Developer Guide (API Version 2013-04-01)

Updating or Deleting Health Checks when DNS Failover Is Configured

When you want to update or delete health checks that are associated with resource record sets, or you want to change resource record sets that have associated health checks, you must consider how your changes affect routing of DNS queries and your DNS failover configuration.

Caution

Amazon Route 53 does not prevent you from deleting a health check even if the health check is associated with one or more resource record sets. If you delete a health check and you don't update the associated resource record sets, the future status of the health check cannot be predicted and might change. This will affect the routing of DNS queries for your DNS failover configuration.

To update or delete health checks that are already associated with resource record sets, we recommend that you perform the following tasks:

  1. Identify the resource record sets that are associated with the health checks. To identify the resource record sets that are associated with a health check, you must do one of the following:

    • Review the resource record sets in each hosted zone using the Amazon Route 53 console. For more information, see Listing Resource Record Sets.

    • Run the ListResourceRecordSets API action on each hosted zone and review the response. For more information, see ListResourceRecordSets in the Amazon Route 53 API Reference.

  2. Assess the change in behavior that will result from updating or deleting health checks, or from updating resource record sets, and determine which changes to make. For more information, see the following topics:

  3. Change health checks and resource record sets as applicable. For more information, see the following topics:

  4. Delete the health checks that you're no longer using, if any. For more information about deleting health checks using the console, see Deleting Health Checks. For information about using the Amazon Route 53 API, see DeleteHealthCheck in the Amazon Route 53 API Reference.