```
2017/03/10 12:04:34 [error] 9650#9650: *313 upstream timed out (110: Connection timed out) while connecting to upstream, client: 192.168.144.103, server: , request: "GET /api/v1/version HTTP/1.1", upstream: "http://127.0.0.1:8085/api/v1/version", host: "my.host.url.co.uk"