复制log-format-upstream: {"@timestamp":"$time_iso8601",中部志收"host":"$server_addr", "clientip"     : "$remote_addr", "size" : "$body_bytes_sent" ,"requesttime":"$request_time","upstremtime":"$upstream_response_time","upstremhost":"$upstream_addr","httphost":"$host","referer":"$http_referer","xff":"$http_x_forwarded_for","agent":"$http_user_agent","clientip":"$remote_addr","request":"$request","uri":"$uri","status":"$status"}  1.2.