proxy_next_upstream配置了http_503, http_504, 当有后端返回503或者504时,nginx前端access.log记录的都是502:
10.2.6.12 [2016-01-12T12:02:36+08:00] 502 681 "GET / HTTP/1.1" "-" "curl" "-" "0.003" "up-157:49180, up-204:49309" "502, 502" "0.001, 0.002"
up-157请求失败,显示为502, up-204返回的是504,显示依然为502,这样是正常的吗?
nginx版本:
Tengine version: Tengine/2.1.1 (nginx/1.6.2)