Segfault during pre-flight check

[Thomas Guyot-Sionnest]

Hi,

I'm maintaining a pretty big nagios setup (about 60 hosts/ 600 services and
plan to grow that by 3-4 times). Most of the config is using templates to
save config lines and maintenance time. Every host has an extinfo (one
definition for each hostsgroup).

Now I started adding services extinfos to do some fancy things with e-mail
pages, and ran in a strange segfault bug. To explain it better I'll give an
overview of my config.

templates.cfg: This defines all basic hosts, services and service extinfo
templates.

Ex:

define service {
  name                  generic_service
  max_check_attempts    3
  normal_check_interval 300
  retry_check_interval  60
  check_period          24x7
  notification_interval 600
  notification_period   24x7
  notification_options  c,w,r
  contact_groups        admin
  register              0
}

define service {
  hostgroup_name admin,license,public,web
  use            generic_service
  name           dynamic_service
  register 0
}

services.cfg: This defines services based on template above.

For ex.:

define service {
  host_name           nagios.example.com
  service_description HTTP
  servicegroups       http_svc
  check_command       check_http!$HOSTADDRESS$
  use                 dynamic_service
}

Will add this services for all hosts in hostsgroups admin,license,public,web 
PLUS host nagios.example.com

So far this works fine. Now I add in templates.cfg (Note that I removed the
ampersand from "illegal_macro_output_chars" for this to work) :

define serviceextinfo {
  name                generic_service_ext
  action_url
https://nagios.example.com/cgi-bin/extinfo.cgi?type=2&host=$HOSTNAME$&servic
e=$SERVICEDESC$
  register            0
}

define serviceextinfo {
  hostgroup_name admin,license,public,web
  use            generic_service_ext
  name           dynamic_service_ext
  register 0
}

And in services.cfg:

define serviceextinfo {
  host_name           nagios.example.com
  service_description HTTP
  use                 dynamic_service_ext
}

Then run:

# nagios -v /etc/nagios/nagios.cfg

Nagios 2.4
Copyright (c) 1999-2006 Ethan Galstad (http://www.nagios.org)
Last Modified: 05-31-2006
License: GPL

Reading configuration data...

Segmentation fault


Now, interesting thing here, If I move "hostgroup_name
admin,license,public,web" from the template to the registered service
extinfo, it works!

templates.cfg:

define serviceextinfo {
  use            generic_service_ext
  name           dynamic_service_ext
  register 0
}

services.cfg:

define serviceextinfo {
  host_name           nagios.example.com
  hostgroup_name      admin,license,public,web
  service_description HTTP
  use                 dynamic_service_ext
}


root at josianne:/etc/nagios/cfg# nagios -v /etc/nagios/nagios.cfg

Nagios 2.4
Copyright (c) 1999-2006 Ethan Galstad (http://www.nagios.org)
Last Modified: 05-31-2006
License: GPL

Reading configuration data...

Running pre-flight check on configuration data...

Checking services...
        Checked 597 services.
Checking hosts...
        Checked 64 hosts.
Checking host groups...
        Checked 10 host groups.
Checking service groups...
        Checked 4 service groups.
Checking contacts...
        Checked 7 contacts.
Checking contact groups...
        Checked 4 contact groups.
Checking service escalations...
        Checked 0 service escalations.
Checking service dependencies...
        Checked 71 service dependencies.
Checking host escalations...
        Checked 0 host escalations.
Checking host dependencies...
        Checked 0 host dependencies.
Checking commands...
        Checked 59 commands.
Checking time periods...
        Checked 4 time periods.
Checking extended host info definitions...
        Checked 64 extended host info definitions.
Checking extended service info definitions...
        Checked 132 extended service info definitions.
Checking for circular paths between hosts...
Checking for circular host and service dependencies...
Checking global event handlers...
Checking obsessive compulsive processor commands...
Checking misc settings...

Total Warnings: 0
Total Errors:   0

Things look okay - No serious problems were detected during the pre-flight
check


I'm sorry I didn't have time to cleanup all the config . I'm currently
setting another nagios box, so if I run into this problem at the very
beginning I'll keep that config and send it over. I also tried to get a core
dump but it didn't worked, I'm not sure if I need to enable some options at
compile time...

Thanks

Thomas
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