Zabbix监控Nginx性能状态
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=$1 nginx_active(){ /usr/bin/curl -s "http://127.0.0.1:"$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 in active) 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.conf LogFile=/tmp/zabbix_agentd.log Server=192.168.2.148 ListenPort=10050 ServerActive=192.168.2.148 Hostname=192.168.2.146 UserParameter=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]