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Re: Upstream Keepalive connection close

Maxim Dounin
January 12, 2015 09:40AM
Hello!

On Tue, Jan 06, 2015 at 06:06:18AM -0500, Gona wrote:

> I have Nginx server configured with couple of backend servers with keepalive
> connections enabled.
>
> I am trying to understand what will be the Nginx's behaviour in case the
> connection is closed by an upstream server legitimately when Nginx is trying
> to send a new request exactly at the same time. In this race condition, does
> Nginx re-try the request internally or does it return an error code?
>
> In case Nginx needs to be forced to retry, should I be using
> proxy_next_upstream? My understanding is that this setting will make the
> request re-tried on the next server in the upstream block. On the same note,
> how do I force the retry on the failed server first to avoid cache misses.

As of now, nginx will only retry the request to the next server, if
any (as soon as "proxy_next_upstream" includes "error", which is
the default).

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

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Subject Author Posted

Upstream Keepalive connection close

Gona January 06, 2015 06:06AM

Re: Upstream Keepalive connection close

Maxim Dounin January 12, 2015 09:40AM

Re: Upstream Keepalive connection close

Gona January 15, 2015 10:53AM

Re: Upstream Keepalive connection close

Maxim Dounin January 15, 2015 12:08PM

Re: Upstream Keepalive connection close

Gona February 23, 2015 07:27AM

Re: Upstream Keepalive connection close

Maxim Dounin February 25, 2015 09:42AM



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