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(*Route53).ChangeResourceRecordSets

Defined in github.com/aws/aws-sdk-go/service/route53/api.go

Description

Create, change, update, or delete authoritative DNS information on all Amazon Route 53 servers. Send a POST request to:

/2013-04-01/hostedzone/Amazon Route 53 hosted Zone ID/rrset resource.

The request body must include a document with a ChangeResourceRecordSetsRequest element. The request body contains a list of change items, known as a change batch. Change batches are considered transactional changes. When using the Amazon Route 53 API to change resource record sets, Amazon Route 53 either makes all or none of the changes in a change batch request. This ensures that Amazon Route 53 never partially implements the intended changes to the resource record sets in a hosted zone.

For example, a change batch request that deletes the CNAMErecord for www.example.com and creates an alias resource record set for www.example.com. Amazon Route 53 deletes the first resource record set and creates the second resource record set in a single operation. If either the DELETE or the CREATE action fails, then both changes (plus any other changes in the batch) fail, and the original CNAME record continues to exist.

Due to the nature of transactional changes, you cannot delete the same

resource record set more than once in a single change batch. If you attempt to delete the same change batch more than once, Amazon Route 53 returns an InvalidChangeBatch error.

To create resource record sets for complex routing configurations, use

either the traffic flow visual editor in the Amazon Route 53 console or the API actions for traffic policies and traffic policy instances. Save the configuration as a traffic policy, then associate the traffic policy with one or more domain names (such as example.com) or subdomain names (such as www.example.com), in the same hosted zone or in multiple hosted zones. You can roll back the updates if the new configuration isn't performing as expected. For more information, see Using Traffic Flow to Route DNS Traffic (http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/traffic-flow.html) in the Amazon Route 53 API Reference or Actions on Traffic Policies and Traffic Policy Instances (http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/actions-on-polices) in this guide.

Use ChangeResourceRecordsSetsRequest to perform the following actions:

  CREATE:Creates a resource record set that has the specified values.

  DELETE: Deletes an existing resource record set that has the specified

values for Name, Type, Set Identifier (for code latency, weighted, geolocation, and failover resource record sets), and TTL (except alias resource record sets, for which the TTL is determined by the AWS resource you're routing queries to).

UPSERT: If a resource record set does not already exist, AWS creates

it. If a resource set does exist, Amazon Route 53 updates it with the values in the request. Amazon Route 53 can update an existing resource record set only when all of the following values match: Name, Type, and Set Identifier (for weighted, latency, geolocation, and failover resource record sets).

In response to a ChangeResourceRecordSets request, the DNS data is changed

on all Amazon Route 53 DNS servers. Initially, the status of a change is PENDING, meaning the change has not yet propagated to all the authoritative Amazon Route 53 DNS servers. When the change is propagated to all hosts, the change returns a status of INSYNC.

After sending a change request, confirm your change has propagated to all Amazon Route 53 DNS servers. Changes generally propagate to all Amazon Route 53 name servers in a few minutes. In rare circumstances, propagation can take up to 30 minutes. For more information, see GetChange.

Note the following limitations on a ChangeResourceRecordSets request:

 A request cannot contain more than 100 Change elements.

 A request cannot contain more than 1000 ResourceRecord elements.

The sum of the number of characters (including spaces) in all Value elements

in a request cannot exceed 32,000 characters.

If the value of the Action element in a ChangeResourceRecordSets request

is UPSERT and the resource record set already exists, Amazon Route 53 automatically performs a DELETE request and a CREATE request. When Amazon Route 53 calculates the number of characters in the Value elements of a change batch request, it adds the number of characters in the Value element of the resource record set being deleted and the number of characters in the Value element of the resource record set being created.

The same resource cannot be deleted more than once in a single batch.

If the value of the Action element in a ChangeResourceRecordSets request

is UPSERT and the resource record set already exists, Amazon Route 53 automatically performs a DELETE request and a CREATE request. When Amazon Route 53 calculates the number of characters in the Value elements of a change batch request, it adds the number of characters in the Value element of the resource record set being deleted and the number of characters in the Value element of the resource record set being created.

For more information on transactional changes, see ChangeResourceRecordSets.