Occasional successful upstreamed requests that don't get picked up

[rcutter]

Just to follow up on this post in case people find it in the future - we
haven't found any evidence that there is an issue with NGINX or Kong.  If
folks experience this kind of issue, would recommend examining the network
(to include tcpdumps, etc) to figure out what's really happening with
dropped requests.

Thanks for the reply, pbooth!

-Ryan

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,274267,274670#msg-274670