nginx timeout aborting subsequent proxying from upstream block
mdounin at mdounin.ru
Tue Dec 20 19:50:49 UTC 2016
On Tue, Dec 20, 2016 at 06:31:46PM +0000, Mauri, Richard wrote:
> This is question about configuring nginx so that when you have
> multiple servers in an upstream block and the first one selected
> to handle a request "times out" (at default 60s) that we can
> skip the forwarding to subseqnt servers in the upstream block.
> We see the case where the upstream_response_time in nginx log
> shows like 60s,60s.
> We have a client that aborts the request/connection at 20sec and
> other clients that ultimately fail because the server responded
> with failure with the 60s,60s upstream_response time.
> We want to institutionalize the aggregate 20s round trip client
> request time at the server side if possible.
> In other words we don't want to configure the proxy read and
> write timeout settings to 20 as this might result in total of
> 40s as observed by the client.
> We don't want to set the seetings to like 10s as that may not
> give the server enough time to complete processing.
> Rather we want the proxy read write timeouts to be 20s and the
> entire request to fail immediately without going to the next
> server in the upstream block.
> How is nginx configured so if the first upstream server
> times-out; then subsequent servers are not consulted and the
> server effectively timeout at 20?
See http://nginx.org/r/proxy_next_upstream_timeout for additional
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