check_snmp_storage.pl error: Service check did not exit properly

[Max]

Hi,

On Mon, Feb 2, 2009 at 7:39 PM, Chris <atstake at gmail.com> wrote:
> On Mon, Feb 2, 2009 at 3:54 PM, Chris <atstake at gmail.com> wrote:
>> I can type the following
>>
>> ./check_snmp_storage.pl -H foo -C foo -m / -r -w 80% -c 90%
>>
>> and get the correct information. But I'm having trouble adding it to
>> nagios configuration file.
>>
>> My partitions are not same for every host (eg. some hosts have a /tmp
>> partition and some don't)
>>
>> In my commands.cfg I defined:
>>
>> define command{
>>        command_name    check_snmp_storage
>>        command_line    $USER1$/check_snmp_storage.pl -H $HOSTADDRESS$
>> -C $ARG1$ -m $ARG2$ -w 80% -c 90% -r
>>        }
>>
>>
>> And I define the service in my unix.cfg file as:
>>
>> define service{
>>        use                             generic-service
>>        host_name                       server_name
>>        service_description             Disk /
>>        check_command                   check_snmp_storage!foo!/
>>        }
>>
>> When I restart Nagios, I get status critical in Nagios web interface
>> for this service check. Status Information says: (Service check did
>> not exit properly)

Two separate issues here:
1)  For the utils.pm problem, you can add this line to the script
after the shebang line to have the perl interpreter find utils.pm.

#!/usr/bin/perl
use lib 'usr/lib/nagios/plugins/';

2)  For your custom service check command I recommend using custom
attributes if you are using Nagios 3.  Two benefits:
a)  You can associate your service with a hostgroup and then just add
hosts to that host group to have them pull in the service (don't have
to redefine new copies of the service over and over
b) More readabl configurations.

E.g. (made up example, does not match your code)

define command{
        command_name    check_snmp_storage
        command_line    $USER1$/my_disk_check_command.pl -w
$_HOST_DISK_WARN$ -c $_HOST_DISK_CRIT$ --partitions
$_HOST_DISK_PARTITION$
}

Then create your service one time and add it to the disk-check-hosts group

define service {
     service_description Disk Check Service
     hostgroup_name disk-check-hosts
    .... more attributes ...
}

Then create a host group disk-check-hosts

define hostgroup {
     hostgroup_name disk-check-hosts
     alias Disk check hosts
}

Then in your host you can use:

define host {
     use generic-host
     hostgroups +disk-check-hosts
    __disk_partitions /var,/home
    __disk_warn 85
    __disk_crit 95
}

Little more work, but now you can add the service to additional hosts
by just adding them to the disk-check-hosts hostgroup and defining the
custom attributes in the host .. which means someone maintaining the
code sees the attributes in one place .. with the host definition.
Much more readable than having to browse through many services :).

- Max

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