nagios用nrpe监控mem-创新互联

在监控端及nagios服务器上添加如下脚本

[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)

define command{

command_name check_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

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