Specify Port On Check_memcached.pl

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Hey guys,

I’m trying use check_memcached.pl to monitor a couple of memcached services running on two ports.

I have my command definition setup like this:

# ‘check_memcached’ command definition

define command {

command_name check_memcached

command_line $USER1$/check_memcached.pl -H $HOSTADDRESS$ -p $ARG1$

}

And I have my service definitions setup like this:

# Define a service to check memcached on web1 (just the basics for right now).

define service{

use local-service ; Name of service template to use

host_name web1

service_description Check Memcached 11211

contact_groups linux-admins

check_command check_memcached!web1.example.com
!11211

notifications_enabled 1

}

# Define a service to check memcached on web1 (just the basics for right now).

define service{

use local-service ; Name of service template to use

host_name web1

service_description Check Memcached 11212

contact_groups linux-admins

check_command check_memcached!web1.example.com
!11212

notifications_enabled 1

}

And if I run both checks manually they succeed:

[root@monitor1:/usr/local/nagios/etc/objects/servers] #../../../libexec/
check_memcached.pl -H web1.example.com -p 11211

MEMCACHE OK: memcached 1.4.22 on web1.example.com:11211, up 22 minutes 52
seconds

[root@monitor1:/usr/local/nagios/etc/objects/servers] #../../../libexec/
check_memcached.pl -H web1.example.com -p 11212

MEMCACHE OK: memcached 1.4.22 on web1.example.com:11212, up 12 minutes 2
seconds

Yet, in my nagios web interface, I’m getting this error:

Check Memcached 11211

CRITICAL

05-24-2015 14:28:31

0d 0h 10m 19s

4/4

CRITICAL ERROR – Can not connect to ‘162.243.60.6’ on port 0

Check Memcached 11212

CRITICAL

05-24-2015 14:29:12

0d 0h 11m 8s

4/4

CRITICAL ERROR – Can not connect to ‘162.243.60.6’ on port 0

I thought I could specify the command in the service definition like this:

check_memcached!web1.example.com!11211

To reproduced the command as it’s executed on the command line. How can I
specify the port correctly here?

Thanks,

Tim

2 thoughts on - Specify Port On Check_memcached.pl

  • Am 24.05.2015 um 16:36 schrieb Tim Dunphy:

    [ snip ]

    Verify the command definition.

    You should use the nagios community support list to discuss setup questions about your self compiled nagios.

    Alexander

  • Hi Tim,

    Your command specification is wrong. It will get the -H attribute from the host_name you should not specify it on the check_command and By doing so what you have effectively done is write:
    check_memcached.pl -H web1.example.com -p web1.example.com 11211
    if you enable debug_level 48 you should be able to see the commands that Nagios is creating.

    Tris

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