Nginx在生产环境中的应用越来越广泛，所以需要对nginx的性能状态做一些监控，从而发现故障隐患，Ngnx的监控指标可分为：基本活动指标，错误指标，性能指标
监控Nginx思路：
1）首先，要想监控Nginx，需要状态模块的支持，也就是-with-http_stub_status_module；随后在nginx.conf配置开启status状态
2）通过awk取status的各个状态数值
3）自定义模板将取值status的状态写成脚本，放在UserParmeter后面，最后通过zabbix_get测试·agent端是否得到状态值
Accepts：接受的客户端请求数
Active：当前活跃的连接数
Handled：处理的请求数（正常服务器响应）
Requests：客户端处理的请求出（吞吐量）
Reading:当接收到的请求时，连接离开waiting状态，并且该请求本身使Reading状态统计数增加，这种状态下，nginx会读取客户端请求首部，请求首部是比较小的，因此这通常是一种快捷的操作
Writing：请求被读取之后，使得Writing状态计数增加，并保持在该状态，直到响应返回给客户端，这便意味着，该请求在writing状态时，一方面NGINX
[root@nginx-web ~]# yum install -y pcre-devel openssl-devel popt-devel
[root@nginx-web ~]# tar zxvf nginx-1.11.2.tar.gz
[root@nginx-web ~]# cd nginx-1.11.2
[root@nginx-web nginx-1.11.2]# ./configure --prefix=/usr/local/nginx --user=nginx --group=nginx --with-http_stub_status_module
[root@nginx-web nginx-1.11.2]# ln -s /usr/local/nginx/sbin/nginx /usr/local/sbin/
[root@nginx-web nginx-1.11.2]# useradd -M -s /sbin/nologin nginx
[root@nginx-web nginx-1.11.2]# nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
[root@nginx-web nginx-1.11.2]# cd /usr/local/nginx/conf/
[root@nginx-web conf]# ls
fastcgi.conf fastcgi_params koi-utf mime.types nginx.conf scgi_params uwsgi_params win-utf
fastcgi.conf.default fastcgi_params.default koi-win mime.types.default nginx.conf.default scgi_params.default uwsgi_params.default
[root@nginx-web conf]# cp nginx.conf nginx.conf.bak
[root@nginx-web conf]# vim nginx.conf
worker_processes 1;events {worker_connections 1024;}http {include mime.types;default_type application/octet-stream;sendfile on;keepalive_timeout 65;server {listen 80;server_name localhost;location / {root html;index index.html index.htm;location/status {stub_status on;access_log off;allow 192.168.2.0/24;allow 127.0.0.1;deny all;}}error_page 500 502 503 504 /50x.html;location = /50x.html {root html;}}}
【Zabbix-agent端配置】
[root@nginx-web zabbix_agentd.conf.d]# vim nginx_monitor.sh
NGINX_PORT=80 NGINX_COMMAND=$1nginx_active(){/usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/status/" |awk '/Active/ {print $NF}'}nginx_reading(){/usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/status/" |awk '/Reading/ {print $2}'}nginx_writing(){/usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/status/" |awk '/Writing/ {print $4}'}nginx_waiting(){/usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/status/" |awk '/Waiting/ {print $6}'}nginx_accepts(){/usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/status/" |awk 'NR==3 {print $1}'}nginx_handled(){/usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/status/" |awk 'NR==3 {print $2}'}nginx_requests(){/usr/bin/curl -s "http://127.0.0.1:"$NGINX_PORT"/status/" |awk 'NR==3 {print $3}'}case $NGINX_COMMAND inactive)nginx_active;;;reading)nginx_reading;;;writing)nginx_writing;;;waiting)nginx_waiting;;;accepts)nginx_accepts;;;handled)nginx_handled;;;requests)nginx_requests;;;*)echo $"USAGE:$0 {active|reading|writing|waiting|accepts|handled|requests}"esac
[root@nginx-web zabbix_agentd.conf.d]# chmod +x nginx_monitor.sh
root@nginx-web zabbix_agentd.conf.d]#vim /usr/local/zabbix/etc/zabbix_agentd.confLogFile=/tmp/zabbix_agentd.logServer=192.168.2.148ListenPort=10050ServerActive=192.168.2.148Hostname=192.168.2.146UserParameter=status[*],/bin/bash /usr/local/zabbix/etc/zabbix_agentd.conf.d/nginx_monitor.sh "$1"
[测试]
在zabbix服务端测试一下能否获取agent端的nginx状态数值
[root@zabbix-server ~]# /usr/local/zabbix/bin/zabbix_get -s 192.168.2.146 -k status
USAGE:/usr/local/zabbix/etc/zabbix_agentd.conf.d/nginx_monitor.sh {active|reading|writing|waiting|accepts|handled|requests}
[root@zabbix-server ~]# /usr/local/zabbix/bin/zabbix_get -s 192.168.2.146 -k status[writing]
1
【创建监控项】
根据zabbix-agent中的nginx_status.sh的参数，总共要创建active、reading、writing、waiting、accepts、handled、requests这7项
目前为止，七个监控项已添加完成了
[图形创建]
