input required on proxy_next_upstream

kaustubh nginx-forum at
Sat Feb 18 04:29:22 UTC 2017

Thanks for reply. But I checked upstreams and second instance is working
fine but does not receive retry request.

I did small setup where one upstream instance responds early with 503 and
other instance processes requests,
and I observe that the request never comes to working upstream server on
early 503 from first upstream.

Posted at Nginx Forum:,272440,272495#msg-272495

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