What happens to SNS' self throttled messages which are not delivered for a long time?

Question

Say that I have a SNS which I am self throttling using the attribute maxReceivesPerSecond. Let's say we have a very high production rate, but due to the throttling, the consumption is very slow. This can lead to some messages being in the SNS for a long time.

I saw this SO answer, where it's mentioned that such messages will be deleted after 1 hour. But the quote doesn't exist in the documentation anymore.

So what is the current policy of deletion of un-delivered messages in a SNS now?

I also got confused now. Maybe better to delete the answer and let someone else clarify this. — Marcin, Jun 09 '21 at 08:50
@Marcin Have started a bounty on this question. We might get the answer to this. — Mooncrater, Jun 11 '21 at 10:20

score 3 · Answer 1 · answered Jun 11 '21 at 13:31

3

Amazon SNS now allows you to set a TTL (Time to Live) value of up to two weeks for each message. Messages that remain undelivered for the given period of time (expressed as a number of seconds since the message was published) will expire and will not be delivered.

You should refer to this link for more details:

https://aws.amazon.com/blogs/aws/sns-ttl-control/

answered Jun 11 '21 at 13:31

Muzaffar Shaikh

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So you will award the bounty too? – Muzaffar Shaikh Jun 11 '21 at 14:09
This applies only to mobile push notifications. What about any other sns use-case? – Marcin Jun 12 '21 at 01:49
Which use-case are you looking for? – Muzaffar Shaikh Jun 14 '21 at 05:26
What about anything else? SNS with lambda, SQS, HTTP subscriptions? – Marcin Jun 14 '21 at 05:29
You can use SQS as well. You can use SNS to send the message to SQS and then SQS sends the message. SQS has a better throttling than SNS. You can also use Lambda to trigger SNS. – Muzaffar Shaikh Jun 14 '21 at 06:04
@Mooncrater : Are you going to award the bounty? – Muzaffar Shaikh Jun 18 '21 at 06:07

What happens to SNS' self throttled messages which are not delivered for a long time?

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