[CentOS] specify port on check_memcached.pl

[Tris Hoar]

On 24/05/2015 15:36, Tim Dunphy wrote:
> 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 at 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 at 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
> <https://nagios.jokefire.com/nagios/cgi-bin/extinfo.cgi?type=2&host=web1&service=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
> <https://nagios.jokefire.com/nagios/cgi-bin/extinfo.cgi?type=2&host=web1&service=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
>
>

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=2048 you should be able to see the commands 
that Nagios is creating.

Tris


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