Documentation: Clarify how long requests can last

[jvisker]

Community Note

• Please vote on this issue by adding a 👍 reaction to the original issue to help the community and maintainers prioritize this request
• Please do not leave "+1" or "me too" comments, they generate extra noise for issue followers and do * not help prioritize the request
  If you are interested in working on this issue or have submitted a pull request, please leave a comment

Tell us about your request
Document how long requests can last. Empirically it looks like they are always cut off at 2 minutes, but this repost question and comment seem to indicate 30 seconds (https://repost.aws/questions/QUK3YcHzS6SVCvbF-UkWptOw/app-runner-request-timeout-http-503).

[suzukieng]

I have an answer from AWS support that it is currently hard-capped at 30 seconds, and it's a known limitation of AppRunner.
AWS support asked me to open an issue here, which I will do shortly (separately from this one)

[suzukieng]

See #104

[kjpgit]

Can I piggy back on this to also request that this be documented:

• Maximum request and response sizes and timeouts, both for incremental bytes and total duration. There should be a "limits" section in the doc, like all other aws services.
• Is HTTP 1 or 2 (and persistent connections) supported to router and/or to the container instances.
• What TLS cipher suites are required

[keerataws]

Thank you for these suggestions. Taking a look.

[CarlosDomingues]

Is there any strong reason for 30s timeouts?

That makes App Runner badly suited for workloads that deal with long running jobs, like analytics.

[keerataws]

Yes, this is a known limitation at the moment and is a roadmap issue. The service team is working on it. Sorry, if this limitation is causing inconvenience for you.

[CarlosDomingues]

@keerataws

Thank you for the quick response. Since this issue has "Documentation" in the title, I thought only documentation was being addressed, which is why I asked about the timeout itself. Very happy to know that timeouts might be increased one day!

[snnles]

Thank you for your feedback. We have updated the request read timeout in App Runner from 30 seconds to 120 seconds. Our documentation has also been updated.

Documentation link: https://docs.aws.amazon.com/apprunner/latest/dg/develop.html#develop.considerations

[jvisker]

Thanks @snnles!

[suzukieng]

Good stuff, thank you @snnles !