How to choose MaxNumberOfMessages?

[1Mark]

The example below shows how to enable long polling
https://github.com/boto/boto3/blob/0b82bf9843ad6d350b48442c47f4a484a886ee3f/docs/source/guide/sqs-example-long-polling.rst#enable-long-polling-on-message-receipt

Why was MaxNumberOfMessages=1 chosen? Does and how does this impact long polling and cost?

[aBurmeseDev]

Hi @1Mark, thanks for reaching out.

MaxNumberOfMessages can be set to int value between 1 to 10 and its default value is 1 as mentioned in the boto3 documentation. I reached out to SQS team on how it impacts and here's their response:

Using a higher MaxNumberOfMessages helps customers reduce cost by reducing the number of SQS calls when their queue has backlog. It also lets them consume their backlog faster.
The potential downsides are processing latency (if they don’t process the received messages concurrently) or consumer implementation complexity (if they do)

Hope it helps,
John

[1Mark]

@aBurmeseDev would be awesome to append these to the official docs. Regardless, thank you so much.

[aBurmeseDev]

Thank you for your feedback and I'll make sure to pass it along to the API docs team.