"Plugin timed out while executing system call" error using check_dhcp plugin
Hari Sekhon
hpsekhon at googlemail.com
Thu May 3 13:51:05 CEST 2007
are you running nagios as root (I expect you to say no here.. in which
case:)
the plugin is running under the nagios account, but it must be run under
root in order to have the necessary permissions to work properly.
-h
Hari Sekhon
Ruth Anne wrote:
> Nagios version 2.8
> check_dhcp (nagios-plugins 1.4.6) 1.8
> RHEL4-x64
>
> We finally made this plugin work with our server - we had to issue
> addresses on a range we had not previously set up. The command
> /usr/local/nagios/libexec/check_dhcp -s <our.server.IP.here> works
> splendidly from the command line with both root and nagios users.
> '/usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg'
> completes with no errors.
>
> However, when I attempt to have check_dhcp run from within nagios, I
> get the error: CRITICAL - Plugin timed out while executing system
> call.
>
> Previous to this error, I was getting "DHCP;CRITICAL;HARD;3;(Return
> code of 126 is out of bounds - plugin may be missing)" errors. I
> followed Thomkas' suggestion in a message dated Mon, 11 Sep 2006
> 04:41:53 +0200, and removed the service definition, restarted nagios,
> inserted the service definition, and restarted nagios. Then I started
> to get the "Plugin timed out" errors.
>
> I had had someone else look over the files, and they can't find any
> errors. I am including the relevant snippits here. Hopefully,
> someone will be able to shed some light on my problem.
>
> Thanks,
> --Ruth Anne
>
>
> ls -l of check_dhcp:
> -rwsr-xr-x 1 root root 87240 Mar 22 11:49 check_dhcp
>
> from hostgroups.cfg:
>
> define hostgroup{
> hostgroup_name dhcp-servers
> alias DHCP Servers
> members pod-e,pod-f
> }
>
>
> from services.cfg:
>
> define service{
> use generic-service
> hostgroup_name dhcp-servers
> service_description DHCP
> is_volatile 0
> check_period 24x7
> max_check_attempts 3
> normal_check_interval 5
> retry_check_interval 1
> contact_groups nagios-admins
> notification_interval 30
> notification_period 24x7
> notification_options w,u,c,r
> check_command check-dhcp-lrt
> }
>
> from commands.cfg
>
> #
> # 'check-dhcp-lrt'command definition
> define command{
> command_name check-dhcp-lrt
> command_line $USER1$/check_dhcp -s $HOSTADDRESS$
> }
>
>
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