Zabbix自定义脚本监控MySQL数据库

news2024/12/28 3:25:57

一、MySQL数据库配置

1.1 创建Mysql数据库用户

[root@mysql ~]# mysql -uroot -p
create user zabbix@'127.0.0.1' identified by '123456';
flush privileges;

1.2 添加用户密码到mysql client的配置文件中

[root@mysql ~]# vim /etc/my.cnf.d/client.cnf
[client]
host='127.0.0.1'
user='zabbix'
password='123456'

二、创建自定义监控脚本

[root@mysql ~]# vim /etc/zabbix/script/check_mysql.sh

#!/bin/bash
#Mysql主机地址
MYSQL_HOST='127.0.0.1'
#Mysql端口
MYSQL_PORT='3306'
#数据连接
MYSQL_CONN="/usr/bin/mysqladmin  -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 "Unknown options." 
        ;;
esac

三、zabbix agent添加自定义键值

[root@mysql ~]# vim /etc/zabbix/zabbix_agentd.d/userparameter_mysql.conf
UserParameter=mysql.status[*],bash /etc/zabbix/script/check_mysql.sh $1
UserParameter=mysql.ping,/usr/bin/mysqladmin ping 2>/dev/null | grep -c alive
UserParameter=mysql.version,/usr/bin/mysql -V
[root@mysql ~]# systemctl restart zabbix-agent