Hello!

On Thu, Jun 08, 2017 at 01:10:25AM -0700, Frank Liu wrote:

> In case of upstream returning 429, I'd like to have nginx retry next
> upstream server. Since nginx by default won't retry non-idempotent
> requests, how do I force nginx to retry when receiving 429? I imagine this
> should be the default behavior anyway, or does nginx not care about
> returning code and will never retry non-idempotent?

Non-idemportent requests are not retried as long as the request is
already sent, regardless of a particular error. If you want nginx
to retry non-idempotent requests, you can do so with
"proxy_next_upstream non-idempotent;", see
http://nginx.org/r/proxy_next_upstream.

--
Maxim Dounin
http://nginx.org/
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