一、Zabbix web页面操作

1.1 为主机增加mysql template

增加mysql模板

1.2 查看主机监控项状态

点击主机 - 应用集 - 监控项

监控项

查看信息，如果有报错需要解决
如：

ERROR 1045 (28000): Access denied for user 'zabbix'@'localhost' (using password: NO)

查看信息

1.3 查看是否获取到数据

检测中 - 最新数据

最新数据

二、Zabbix agent配置

2.1 创建检测脚本

打开zabbix agent配置目录 /etc/zabbix

cd /etc/zabbix

chk_mysql.sh

vim chk_mysql.sh

#!/bin/bash
# -------------------------------------------------------------------------------
# FileName:    check_mysql.sh
# Revision:    1.0
# Date:        2016/09/29
# Author:      lisiyu
# Email:       
# Website:     
# Description: 
# Notes:       ~
# -------------------------------------------------------------------------------
# Copyright:   2015 (c) DengYun
# License:     GPL
 
# 用户名
MYSQL_USER='zabbix'
 
# 密码
MYSQL_PWD='zabbix'
 
# 主机地址/IP
MYSQL_HOST='127.0.0.1'
 
# 端口
MYSQL_PORT='3306'
 
# 数据连接
MYSQL_CONN="/usr/bin/mysqladmin -u${MYSQL_USER} -p${MYSQL_PWD} -h${MYSQL_HOST} -P${MYSQL_PORT}"
 
# 参数是否正确
if [ $# -ne "1" ];then 
    echo "arg error!" 
fi 
 
# 获取数据
case $1 in 
    Uptime) 
        result=`${MYSQL_CONN} status|cut -f2 -d":"|cut -f1 -d"T"` 
        echo $result 
        ;; 
    Com_update) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_update"|cut -d"|" -f3` 
        echo $result 
        ;; 
    Slow_queries) 
        result=`${MYSQL_CONN} status |cut -f5 -d":"|cut -f1 -d"O"` 
        echo $result 
        ;; 
    Com_select) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_select"|cut -d"|" -f3` 
        echo $result 
                ;; 
    Com_rollback) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_rollback"|cut -d"|" -f3` 
                echo $result 
                ;; 
    Questions) 
        result=`${MYSQL_CONN} status|cut -f4 -d":"|cut -f1 -d"S"` 
                echo $result 
                ;; 
    Com_insert) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_insert"|cut -d"|" -f3` 
                echo $result 
                ;; 
    Com_delete) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_delete"|cut -d"|" -f3` 
                echo $result 
                ;; 
    Com_commit) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_commit"|cut -d"|" -f3` 
                echo $result 
                ;; 
    Bytes_sent) 
        result=`${MYSQL_CONN} extended-status |grep -w "Bytes_sent" |cut -d"|" -f3` 
                echo $result 
                ;; 
    Bytes_received) 
        result=`${MYSQL_CONN} extended-status |grep -w "Bytes_received" |cut -d"|" -f3` 
                echo $result 
                ;; 
    Com_begin) 
        result=`${MYSQL_CONN} extended-status |grep -w "Com_begin"|cut -d"|" -f3` 
                echo $result 
                ;; 
                        
        *) 
        echo "Usage:$0(Uptime|Com_update|Slow_queries|Com_select|Com_rollback|Questions|Com_insert|Com_delete|Com_commit|Bytes_sent|Bytes_received|Com_begin)" 
        ;; 
esac

注意：脚本的zabbix用户运行权限

2.2 修改mysql检测配置

将原先的注释了，添加新的配置

vim /etc/zabbix/zabbix_agentd.d/userparameter_mysql.conf

#UserParameter=mysql.status[*],echo "show global status where Variable_name='$1';" | HOME=/var/lib/zabbix mysql -N | awk '{print $$2}'
UserParameter=mysql.status[*],/etc/zabbix/chk_mysql.sh $1

#UserParameter=mysql.size[*],bash -c 'echo "select sum($(case "$3" in both|"") echo "data_length+index_length";; data|index) echo "$3_length";; free) echo "data_free";; esac)) from information_schema.tables$([[ "$1" = "all" || ! "$1" ]] || echo " where table_schema=\"$1\"")$([[ "$2" = "all" || ! "$2" ]] || echo "and table_name=\"$2\"");" | HOME=/var/lib/zabbix mysql -N'

#UserParameter=mysql.ping,HOME=/var/lib/zabbix mysqladmin ping | grep -c alive
UserParameter=mysql.ping,mysqladmin -uzabbix -pzabbix -P3306 -h127.0.0.1  ping | grep -c alive
UserParameter=mysql.version,mysql -V

2.3 关闭SELinux和firewall

setenforce 0
sed -i "s/SELINUX=enforcing/SELINUX=disabled/g" /etc/selinux/config
systemctl stop firewalld
systemctl disable firewalld

2.4 重启agent

systemctl stop zabbix-agent
systemctl start zabbix-agent

2.5 如果还有问题，创建mysql连接文件

vim /etc/zabbix/zabbix_agentd.d/.my.cnf

[client]
user = zabbix
password = zabbix

三、zabbix测试mysql

注意，要在zabbix server上运行zabbix_get，在agent上会报错：

zabbix_get [24860]: Check access restrictions in Zabbix agent configuration

因为zabbix server是编译安装，所以我这里目录在/usr/local/zabbix

cd /usr/local/zabbix/bin

./zabbix_get -s 192.168.16.214 -p10050 -k "system.cpu.load[all,avg15]"; 
./zabbix_get -s 192.168.16.214 -p10050 -k mysql.status[Uptime];

参考

zabbix监控mysql性能(106)
Zabbix_get小工具的使用
Zabbix官网 Recipes for monitoring
zabbix3.0 监控mysql服务免用户名密码登录的问题故障处理详细过程