通过Nginx,Tomcat访问日志(access log)记录请求耗时


通过Nginx,Tomcat访问日志(access log)记录请求耗时


一、Nginx通过$upstream_response_time $request_time统计请求和后台服务响应时间


nginx.conf使用配置方式:

log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"'
'$connection $upstream_addr '
'upstream_response_time $upstream_response_time request_time $request_time ';


$request_time和$upstream_response_time之间差别:

$request_time包含了用户数据接收时间,而真正程序的响应时间应该用$upstream_response_time
所以如果用户网络较差,或者传递数据较大时,$request_time会比$upstream_response_time大很多
详细参考:http://wuzhangshu927.blog.163.com/blog/static/114224687201310674652147/


二、Tomcat通过%D或%T统计请求响应时间

server.xml使用配置方式
<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
prefix="localhost_access_log." suffix=".txt"
pattern="%h %l %u [%{yyyy-MM-dd HH:mm:ss}t] %{X-Real_IP}i &quot;%r&quot; %s %b %D %F" />

%D - 官方解释:Time taken to process the request, in millis,处理请求的时间,以毫秒为单位
%T - 官方解释:Time taken to process the request, in seconds,处理请求的时间,以秒为单位
%F - 官方解释:Time taken to commit the response, in millis,提交响应的时间,以毫秒为单位
详细说明:http://tomcat.apache.org/tomcat-7.0-doc/config/valve.html#Access_Logging

 

三、通过awk命令辅助统计access.log

1.简单统计nginx访问日志access log每分钟请求数

awk -F: '{count[$2":"$3]++} END {for (minute in count) print minute, count[minute]}' /usr/local/nginx/logs/access.log | sort > count.log

结果如下所示(count.log)
18:30 2086
18:31 2184
18:32 2176
18:33 2122
18:34 2128
18:35 2179
...

参考:http://huoding.com/2013/01/26/215

 

2.统计请求响应时间超过10s的记录

awk '($NF > 10){print $0}' /usr/local/tengine/logs/cut-log/access_2015-01-12.log >t10_0112.log

更多awk命令统计访问日志参考:http://www.ibm.com/developerworks/cn/linux/l-cn-awk-httplog/

 

posted @ 2015-01-12 22:33  一片相思林  阅读(14901)  评论(0编辑  收藏