zabbix--监控MySQL性能

Zabbix 自带模板监控 MySQL 性能

通过自带的 Template DB MySQL 模板监控 MySQL 性能

具体步骤：

1）创建脚本存放目录并编辑脚本

# mkdir /etc/zabbix/script

# vim /etc/zabbix/script/mysql_status.sh    //编辑脚本
#!/bin/bash 
#Desc：zabbix 监控 MySQL 状态
#Date：2019-5-6
#by：Lee-YJ

#主机
HOST="localhost"
#用户
USER="root"
#密码
PASSWORD="IjRMv3l6TQIEjvb9nIX5"
#端口
PORT="3306"
#MySQL连接
CONNECTION="mysqladmin -h ${HOST} -u ${USER} -P ${PORT} -p${PASSWORD}"

if [ $# -ne "1" ];then
    echo "arg error!"
fi

case $1 in
    Uptime)
        result=`${CONNECTION} status 2>/dev/null |awk '{print $2}'`
        echo $result
        ;;
    Questions)
        result=`${CONNECTION} status 2>/dev/null |awk '{print $6}'`
        echo $result
        ;;
    Com_update)
        result=`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_update" |awk '{print $4}'`
        echo $result
        ;;
    Slow_queries)
        result=`${CONNECTION} extended-status 2>/dev/null |grep -w "Slow_queries" |awk '{print $4}'`
        echo $result
        ;;
    Com_select)
        result=`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_select" |awk '{print $4}'`
        echo $result
        ;;
    Com_rollback)
        result=`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_rollback" |awk '{print $4}'`
        echo $result
        ;;
    Com_insert)
        result=`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_insert" |awk '{print $4}'`
        echo $result
        ;;
    Com_delete)
        result=`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_delete" |awk '{print $4}'`
        echo $result
        ;;
    Com_commit)
        result=`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_commit" |awk '{print $4}'`
        echo $result
        ;;
    Bytes_sent)
        result=`${CONNECTION} extended-status 2>/dev/null |grep -w "Bytes_sent" |awk '{print $4}'`
        echo $result
        ;;
    Bytes_received)
        result=`${CONNECTION} extended-status 2>/dev/null |grep -w "Bytes_received" |awk '{print $4}'`
        echo $result
        ;;
    Com_begin)
        result=`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_begin" |awk '{print $4}'`
        echo $result
        ;;*)
        echo "Usage:$0(Uptime|Questions|Com_update|Slow_queries|Com_select|Com_rollback|Com_insert|Com_delete|Com_commit|Bytes_sent|Bytes_received|Com_begin)"
        ;;
esac

# chmod +x /etc/zabbix/script/mysql_status.sh    //给脚本赋予执行权限

2）修改zabbix-agent配置文件，默认有一个MySQL的子配置文件，直接编辑该文件即可

# vim /etc/zabbix/zabbix_agentd.d/userparameter_mysql.conf
#获取MySQL性能指标，这个是上一步编辑好的脚本
UserParameter=mysql.status[*],/etc/zabbix/script/mysql_status.sh $1
#获取MySQL运行状态
UserParameter=mysql.ping,mysqladmin -u root -h localhost -pIjRMv3l6TQIEjvb9nIX5 ping 2>/dev/null | grep -c alive
#获取MySQL版本
UserParameter=mysql.version,mysql -V

3）重启 zabbix-agent 

# service zabbix-agent restart

4）Web界面配置、点击需要配置的主机，进去添加链接模板，自带的Template DB MySQL

5）配置完成后等一会儿就可以查看到监控主机的MySQL监控信息

 查看监控主机的 MySQL bandwidth 图形

查看监控主机的 MySQL operations 图形

说明：如果发现监控没有数据，请排查如下问题

1. zabbix客户端是否重启
2. 脚本是否有执行权限
3. 数据库是否有权限
4. 环境变量是否有问题

附 agent 端自动配置脚本 

#!/bin/bash 
#Desc：自动部署zabbix 监控 MySQL 状态 agent端 说明执行改脚本需要传入主机、用户名、密码、端口信息。
#Date：2019-5-6
#by：Lee-YJ


#MySQL连接信息
function MySQLInfo {
    read -p "主机：" HOST
    read -p "用户：" USER
    read -p "密码：" PASSWORD
    read -p "端口：" PORT
}

#创建mysql_status脚本
function MySQLScript {
cat >>/etc/zabbix/script/mysql_status.sh<<EOF
#!/bin/bash 
#Desc：zabbix 监控 MySQL 状态
#Date：2019-5-6
#by：Lee-YJ

#主机
HOST=$HOST
#用户
USER=$USER
#密码
PASSWORD=$PASSWORD
#端口
PORT=$PORT
#MySQL连接
CONNECTION="mysqladmin -h ${HOST} -u ${USER} -P ${PORT} -p${PASSWORD}"

if [ $# -ne "1" ];then
    echo "arg error!"
fi

case $1 in
    Uptime)
        result=\`${CONNECTION} status 2>/dev/null |awk '{print $2}'\`
        echo $result
        ;;
    Questions)
        result=\`${CONNECTION} status 2>/dev/null |awk '{print $6}'\`
        echo $result
        ;;
    Com_update)
        result=\`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_update" |awk '{print $4}'\`
        echo $result
        ;;
    Slow_queries)
        result=\`${CONNECTION} extended-status 2>/dev/null |grep -w "Slow_queries" |awk '{print $4}'\`
        echo $result
        ;;
    Com_select)
        result=\`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_select" |awk '{print $4}'\`
        echo $result
        ;;
    Com_rollback)
        result=\`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_rollback" |awk '{print $4}'\`
        echo $result
        ;;
    Com_insert)
        result=\`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_insert" |awk '{print $4}'\`
        echo $result
        ;;
    Com_delete)
        result=\`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_delete" |awk '{print $4}'\`
        echo $result
        ;;
    Com_commit)
        result=\`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_commit" |awk '{print $4}'\`
        echo $result
        ;;
    Bytes_sent)
        result=\`${CONNECTION} extended-status 2>/dev/null |grep -w "Bytes_sent" |awk '{print $4}'\`
        echo $result
        ;;
    Bytes_received)
        result=\`${CONNECTION} extended-status 2>/dev/null |grep -w "Bytes_received" |awk '{print $4}'\`
        echo $result
        ;;
    Com_begin)
        result=\`${CONNECTION} extended-status 2>/dev/null |grep -w "Com_begin" |awk '{print $4}'\`
        echo $result
        ;;
    *)
        echo "Usage:$0(Uptime|Questions|Com_update|Slow_queries|Com_select|Com_rollback|Com_insert|Com_delete|Com_commit|Bytes_sent|Bytes_received|Com_begin)"
        ;;
esac
EOF
    chmod +x /etc/zabbix/script/mysql_status.sh
}

#配置agent mysql配置文件
function Config {
cp /etc/zabbix/zabbix_agentd.d/userparameter_mysql.conf{,back}
cat >/etc/zabbix/zabbix_agentd.d/userparameter_mysql.conf<<EOF
# 获取MySQL性能指标，这个是上一步编辑好的脚本
UserParameter=mysql.status[*],/etc/zabbix/script/mysql_status.sh $1
# 获取MySQL运行状态
UserParameter=mysql.ping,mysqladmin -u $USER -h $HOST -p$PASSWORD ping 2>/dev/null | grep -c alive
# 获取MySQL版本
UserParameter=mysql.version,mysql -V
EOF
}

function main {
#创建脚本存放路径
mkdir /etc/zabbix/script
MySQLInfo
MySQLScript
Config
#重启zabbix-agent
service zabbix-agent restart
}

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