Nagios not triggering one notification but another?

[Andreas Ericsson]

Schmitz, Carsten wrote:
> Hi fellow Nagios users,
> 
> I have a problem thats driving me insane - its probably a tiny thing
> I'm overlooking and maybe someone can point me into the right
> direction.
> 
> We have an installation of Nagios 1.2 monitoring ~30 servers and lots
> of services. I had setup SMS notification in the past via an
> email-to-sms provider and that worked fine.
> 
> Now we have purchased an GPRS modem to send our own SMS. I have a
> shell script that can send SMS, and I'm trying to get Nagios to
> trigger it. However, nothing happens. Therefore, I tried to simplify
> the setup for easy debugging, and it seems that one notification just
> isn't triggered while another one is.
> 
> This is my test setup (showing relevant excerpts from the config
> files below):
> 
> 
> services.cfg:
> 
> define service{ use                             generic-service
> ; Name of service template to use
> 
> host_name                       nemesis service_description
> Internal Diagnostics is_volatile                     0 check_period
> 24x7 max_check_attempts              1 normal_check_interval
> 1 retry_check_interval            1 contact_groups
> sms_test notification_interval           2400 notification_period
> 24x7 notification_options            c,r check_command
> diag }
> 
> 
> contactgroups.cfg:
> 
> define contactgroup{ contactgroup_name       sms_test alias
> SMS Test members                 sms_carsten }
> 
> 
> 
> contacts.cfg:
> 
> 
> define contact{ contact_name                    sms_carsten alias
> Carsten Schmitz - SMS MDM service_notification_period     24x7 
> host_notification_period        24x7 service_notification_options
> c,r host_notification_options       d,u,r 
> service_notification_commands   diag_out,notify-by-sms-mdm 
> host_notification_commands      host-notify-by-sms-mdm email
> devnull at mydomain.com pager
> my_cellular_number }
> 
> (note: my_cellular_number is of course a placeholder, it has my real
> numeric number in the actual file)
> 
> 
> misccommands.cfg:
> 
> define command{ command_name    notify-by-sms-mdm command_line
> /usr/local/nagios/libexec/alert_sms_mdm $CONTACTPAGER$
> "$SERVICEDESC$\n$HOSTNAME$ -
> $HOSTALIAS$\n$HOSTADDRESS$\n$SERVICESTATE$\n$OUTPUT$\n$DATETIME$" }
> 
> 
> define command{ command_name    diag_out command_line    echo
> $CONTACTPAGER$ "$SERVICEDESC$\n$HOSTNAME$ -
> $HOSTALIAS$\n$HOSTADDRESS$\n$SERVICESTATE$\n$OUTPUT$\n$DATETIME$" >
> /tmp/nagios_diag_out.out }
> 
> 
> "diag" is just a dummy script that exits with return code 0 or 1 at
> my liking, so that I can easily trigger a Nagios alert. It also
> writes a log file. "/usr/local/nagios/libexec/alert_sms_mdm" is the
> SMS script that also writes a log file. "diag_out" just writes a file
> in /tmp for seeing if Nagios triggers a notification, and for seeing
> what the output after variable expansion looks like.
> 
> I have "reloaded" nagios and the config check went just fine.
> 
> 
> What works:
> 
> I can see in the "diag" log file that the check itself is being
> triggered by nagios. I can see in /tmp/nagios_diag_out.out that the
> "diag_out" misccommand (first notification) has been run I can take
> the output from Nagios from the /tmp/nagios_diag_out.out file (same
> as the output for "notify-by-sms-mdm" would be) and pass it on the
> shell to the SMS script and I get an SMS (and a log file entry that
> notify-by-sms-mdm has been run).
> 
> What fails:
> 
> I do not receive an SMS (or a log file entry saying that it called
> notify-by-sms-mdm) when the Nagios alert is triggered.
> 

What does the "Notifications" link in the menu tell you?

> I'm sure this is not a bug but me overlooking a tiny detail somewhere
> ... if someone among the fellow Nagios using community spots the
> problem, I'd be very grateful for a hint.
>

Most (all?) GSM modems need a spooling mechanism since they usually 
can't handle more than one message at the time.

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Lead Developer


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