Zabbix監控Nginx性能狀態

本文轉載自查看原文 2018-06-11 22:07 2096 WEB/ 監控平台

Nginx在生產環境中的應用越來越廣泛，所以需要對nginx的性能狀態做一些監控，從而發現故障隱患，Ngnx的監控指標可分為：基本活動指標，錯誤指標，性能指標

監控Nginx思路：

1）首先，要想監控Nginx，需要狀態模塊的支持，也就是-with-http_stub_status_module；隨后在nginx.conf配置開啟status狀態

2）通過awk取status的各個狀態數值

3）自定義模板將取值status的狀態寫成腳本，放在UserParmeter后面，最后通過zabbix_get測試·agent端是否得到狀態值

Accepts：接受的客戶端請求數

Active：當前活躍的連接數

Handled：處理的請求數（正常服務器響應）

Requests：客戶端處理的請求出（吞吐量）

Reading:當接收到的請求時，連接離開waiting狀態，並且該請求本身使Reading狀態統計數增加，這種狀態下，nginx會讀取客戶端請求首部，請求首部是比較小的，因此這通常是一種快捷的操作

Writing：請求被讀取之后，使得Writing狀態計數增加，並保持在該狀態，直到響應返回給客戶端，這便意味着，該請求在writing狀態時，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"

[測試]

在zabbix服務端測試一下能否獲取agent端的nginx狀態數值

[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