Amazon SNS delivery retry policies for SQS

amazon-web-services amazon-sqs amazon-sns
grigori picture grigori · Jun 10, 2015 · Viewed 7.1k times · Source

We're implementing AWS fanout pattern using SNS topic with multiple SQS queue subscribers. I was wondering what would happen if I successfully publish a message on a SNS topic but it fails (for some reason) to forward it to the queue(s). Will SNS retry and if so, is there a way to control this.

I found this page http://docs.aws.amazon.com/sns/latest/dg/DeliveryPolicies.html that talks about configuring retry policies for SNS HTTP/HTTPS endpoints but there's nothing on SQS.

Answer

George Lin picture George Lin · Jun 15, 2015

I'm a member of the SNS development team. For the SQS deliveries, SNS will retry thousands of times before giving up. Except in the case of catastrophic multi-day outages, message deliveries to SQS are guaranteed.

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