默认mysql监控模版安装方法：

vim /usr/local/etc/zabbix_agentd.conf

UserParameter=mysql.ping,mysqladmin ping | grep -c alive

UserParameter=mysql.version,mysql -V

UserParameter=mysql.status[*],echo "show global status where Variable_name='$1';" | mysql -N -uroot | awk '{print $$2}'

UserParameter=mysql.ping,/usr/local/mysql/bin/mysqladmin ping | grep -c alive

UserParameter=mysql.version,/usr/local/mysql/bin/mysql -V

UserParameter=mysql.status[*],echo "show global status where Variable_name='$1';" | /usr/local/mysql/bin/mysql -N -uroot | awk '{print $$2}'

pkill  zabbix

service zabbix_agentd start

默认的模版用的是mysqladmin 命令   启动mysql时，默认空密码，之后再改mysql的密码导致mysqladmin不能使用

报错：

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

mysqladmin: connect to server at 'localhost' failed

error: 'Access denied for user 'root'@'localhost' (using password: NO)'

改回原来空密码即可