一、request_id定义
## # request id ## lua_package_path '/opt/nginx/conf/lua/lib/?.lua'; init_by_lua ' uuid4 = require "uuid4" '; access_by_lua ' if ngx.var.http_x_eleme_requestid == nil then local id=uuid4.getUUID() ngx.req.set_header("X-Eleme-RequestID",id) end ';
二、