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在监控端及nagios服务器上添加如下脚本
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[root@nagios libexec]# cat /usr/local/nagios/libexec/check_mem.sh
TOTAL=`free -m | head -2 |tail -1 |gawk '{print $2}'`
# Free memory
FREE=`free -m | head -2 |tail -1 |gawk '{print $4}'`
# to calculate free percent
# use the expression free * 100 / total
FREETMP=`expr $FREE \* 100`
PERCENT=`expr $FREETMP / $TOTAL`
echo "$FREE MB ($PERCENT%) Free Memory"
exit 0
vim /usr/local/nagios/etc/objects/commands.cfg (添加)
definecommand{
command_namecheck_mem
command_line$USER1/check_mem.sh -H $HOSTADDRESS$
}
vim /usr/local/nagios/etc/objects/services.cfg （添加）
define service{
use local-service
host_name MySQLhost
service_groups mysqlgroup
service_description check_mem
check_command check_nrpe!check_mem.sh
max_check_attempts 2
normal_check_interval 3
retry_check_interval 2
check_period 24x7
notification_interval 5
notification_period 24x7
notification_options w,u,c,r
contact_groups admins
}
在被监控端
[root@171 html]# cat /usr/local/nagios/libexec/check_mem.sh
TOTAL=`free -m | head -2 |tail -1 |gawk '{print $2}'`
# Free memory
FREE=`free -m | head -2 |tail -1 |gawk '{print $4}'`
# to calculate free percent
# use the expression free * 100 / total
FREETMP=`expr $FREE \* 100`
PERCENT=`expr $FREETMP / $TOTAL`
echo "$FREE MB ($PERCENT%) Free Memory"
exit 0
vim /usr/local/nagios/etc/nrpe.cfg （添加）
command[check_mem.sh]=/usr/local/nagios/libexec/check_mem.sh
重启xientd服务
/etc/init.d/xinted restart
监控端
重启nagios服务
/etc/init.d/nagios restart