id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc	uname	nginx_version
1965	$request_time less than $upstream_response_time	learn0208@…		"nginx logformat:
log_format main escape=json '{ ""http_x_forwarded_for"": ""[$http_x_forwarded_for]"", '
'""remote_addr"": ""$remote_addr"", '
'""remote_user"": ""$remote_user"", '
'""time_local"": ""[$time_local]"", '
'""request_method"": ""$request_method"", '
'""request_host"": ""$scheme://$host"", '
'""request_host_1"": ""$host"", '
'""service_line"": ""itservice.api"", '
'""request_uri"": ""$uri"", '
'""query_string"": ""$query_string"", '
'""server_protocol"": ""$server_protocol"", '
'""status"": ""$status"", '
'""body_bytes_sent"": ""$body_bytes_sent"", '
'""http_referer"": ""$http_referer"", '
'""http_user_agent"": ""$http_user_agent"",'
'""request_time"": ""$request_time"", '
'""upstream_addr"": ""[$upstream_addr]"", '
'""req_id"": ""$request_id"", '
'""upstream_response_time"": ""$upstream_response_time"" '
' }';


nginx log:
{ ""http_x_forwarded_for"": ""[]"", ""remote_addr"": ""192.168.11.130"", ""remote_user"": """", ""time_local"": ""[29/Apr/2020:01:11:33 +0800]"", ""request_method"": ""GET"", ""request_host"": ""https://xxx.abc.com"", ""request_host_1"": ""xxx.abc.com"", ""service_line"": ""itservice.api"", ""request_uri"": ""/api/v1/sensitive-info/batch/getUserInfo"", ""query_string"": ""batchNumber=xxx&userId=xxx&dataType=1"", ""server_protocol"": ""HTTP/1.1"", ""status"": ""200"", ""body_bytes_sent"": ""113"", ""http_referer"": """", ""http_user_agent"": ""Apache-HttpClient/4.5.10 (Java/1.8.0_211)"",""request_time"": ""0.011"", ""upstream_addr"": ""[192.168.10.182:80]"", ""req_id"": ""6bdcc5ce837247323599d37aaceba33c"", ""upstream_response_time"": ""0.012""  }

issue:
upstream_response_time: 0.012
request_time: 0.011
In this log, the requset_time is less than upstream_response_time. Why does this happen?"	defect	new	minor		nginx-core	1.14.x		request_time		Linux NGINX-192-168-11-5-B28 3.10.0-693.el7.x86_64 #1 SMP Tue Aug 22 21:09:27 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux	"nginx version: nginx/1.14.0
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC)
built with OpenSSL 1.0.2k-fips  26 Jan 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module --with-http_realip_module --add-module=/root/rpmbuild/SOURCES/nginx-sticky-module-1.1 --add-module=/root/rpmbuild/SOURCES/nginx_upstream_check_module-master --add-module=/root/rpmbuild/SOURCES/ngx_devel_kit-0.3.0rc1 --add-module=/root/rpmbuild/SOURCES/lua-nginx-module-0.10.13 --add-module=/root/rpmbuild/SOURCES/nginx-module-vts-0.1.18 --with-ld-opt=-Wl,-rpath,/usr/local/luajit/lib --with-stream"