Configuration changes not taking effect after restart of Nagios
Grant Maxwell
grant.maxwell at maxan.com.au
Thu Apr 25 23:43:51 CEST 2013
Hi Deborah
Essentially it comes down to this. Somewhere you have a file with the offending definition in it. You need to find that file and either delete it or move it somewhere where it won't influence the startup.
The first thing I would check is the nagios.cfg file, in particular the lines like:
cfg_file=
cfg_dir=
Then check all of the files/directories mentioned in case there is a left-over line in one of them. You could use grep for that.
If you don't find the offending file/entry then that is most strange because those config lines determine what files and folders nagios will look in for its configurations.
Moving on and assuming that did not find it then I would search the whole system (bigger hammer).
If you are using windows then you can use the windows search facility to find it. If you are using linux (or any UNIX variant) you can use the following command to search the entire system to find it. It searches the whole system because nagios does have files in a few locations. It should only read configs from the locations in the nagios.cfg file but because you can't find the offending file -then use a slightly bigger hammer.
find / -type f -name \*.cfg -exec grep -L "smsgroupname" {} \;
replace smsgroupname with the name of the sms group you got rid of.
The command will list any files that contain the sms group name. It may print some filenames that it could not access. Thats ok just ignore them.
once you find the file …. you know what to do.
let us know how you go ….
regards
Grant
On 26/04/2013, at 2:40 AM, Deborah Martin <Deborah.Martin at kognitio.com> wrote:
> Thanks, I’ve just tried that and it hasn’t made any difference. Somehow the sms group still creeps in. I’ve grepped all the config files to ensure everything is as it should be. Somehow, something is causing the configuration to pick up the old config. I’ve stopped nagios, deleted the suggested files, restarted nagios.
>
> I’ve even taken the service escalation out of the config – now that works – I can see it’s missing when I look at the configuration for service escalations for that particular node.
> When I add the escalation back in, it just doesn’t pick it up correctly.
>
> Here are the definitions of sorts with customer related stuff removed :-
> define host{
> use generic-host
> host_name hostname-a
> alias hostname-a ; Lowercase
> address 172.18.5.41
> hostgroups APP ; Uppercase
> contact_groups app-group,oracle-group,it-helpdesk-group
> check_command check_ping!100.0,20%!500.0,60%
> check_interval 1 ;
> check_period 24x7
> notification_interval 5
> notification_period 24x7
> check_period 24x7
> }
>
> define hostescalation{
> host_name hostname-a
> first_notification 2
> last_notification 2
> notification_interval 2
> escalation_options d ; Only escalate when in DOWN state
> escalation_period oncall
> contact_groups apps-sms-oncall-group, app-group, oracle-group,it-helpdesk-group
> }
>
> define hostescalation{
> host_name hostname-a
> first_notification 3
> last_notification 3
> notification_interval 2
> escalation_options d ; Only escalate when in DOWN state
> escalation_period oncall
> contact_groups app-group,oracle-group,it-helpdesk-group
> }
>
> define service{
> use generic-service
> active_checks_enabled 1 ; Active service check enabled
> host_name hostname-a
> normal_check_interval 5
> service_description Oracle Data check for hostname-a ; AP ports for external app only
> servicegroups apps
> check_command check_nrpe_oracle_data
> contact_groups app-group,oracle-group
> max_check_attempts 1;
> notification_interval 10;
> check_interval 5;
> retry_check_interval 1;
> notification_period MonSun
> notification_options u,c,r ; CHG2 Added warnings for this check only
> }
>
> ## Escalation ONE:
> define serviceescalation {
> host_name hostname-a;
> service_description Oracle Data check for hostname-a ;
> first_notification 2
> last_notification 0
> notification_interval 30
> escalation_options u,c,r ;
> escalation_period oracle-oncall ; Only escalate during oncall periods
> contact_groups app-group,oracle-group
> }
>
> define servicegroup{
> servicegroup_name apps
> alias 3rd Party Application monitoring
> }
>
> define contactgroup{
> contactgroup_name app-group
> alias Application Administrators
> members app-admin
> }
>
>
> define contact{
> contact_name app-admin
> alias app-admin
> contactgroups app-group
> service_notification_period 24x7
> host_notification_period 24x7
> service_notification_options w,u,c,r
> host_notification_options d,u,r
> service_notification_commands notify-by-email
> host_notification_commands host-notify-by-email
> email support at kognitio.com
> }
>
>
> define contactgroup{
> contactgroup_name oracle-group
> alias Oracle Administrators
> members person-a, person-b
> }
>
> define contact{
> contact_name person-a
> alias perona-a
> service_notification_period 24x7
> host_notification_period 24x7
> service_notification_options w,u,c,r
> host_notification_options d,u,r
> service_notification_commands notify-by-email
> host_notification_commands host-notify-by-email
> email person-a at kognitio.com
> }
>
> define contact{
> contact_name person-b
> alias person-b
> service_notification_period 24x7
> host_notification_period 24x7
> service_notification_options w,u,c,r
> host_notification_options d,u,r
> service_notification_commands notify-by-email
> host_notification_commands host-notify-by-email
> email person-b at kognitio.com
> }
>
> define timeperiod{
> timeperiod_name oracle-oncall
> alias Oracle Oncall Hours
> sunday 00:00-24:00
> monday 08:00-09:00,17:30-20:00
> tuesday 08:00-09:00,17:30-20:00
> wednesday 08:00-09:00,17:30-20:00
> thursday 08:00-09:00,17:30-20:00
> friday 08:00-09:00,17:30-20:00
> saturday 08:00-20:00
> }
>
> Maybe I’ve done something with the above config that is causing this but for the life of me I can’t see it!
>
> Regards,
> Deborah
>
> Deborah Martin
>
> Kognitio Analytical Platform Support
> ______________________________________________________________________
> Direct +44 1344 788670 Switch +44 1344 300770 | Deborah.martin at kognitio.com
> ______________________________________________________________________
> <image001.jpg>
> www.kognitio.com
> <image002.jpg> <image003.jpg> <image004.jpg> <image005.jpg> <image006.jpg>
>
> From: davor grgicevic [mailto:dgrgicevic at gmail.com]
> Sent: 24 April 2013 17:03
> To: Nagios Users List
> Subject: Re: [Nagios-users] Configuration changes not taking effect after restart of Nagios
>
> Hi Deobrah
>
> try following:
> stop nagios
> erase objects.cache, status.dat and retention.dat
> start nagios
>
> Best,
>
>
>
>
>
> On Wed, Apr 24, 2013 at 1:38 PM, Deborah Martin <Deborah.Martin at kognitio.com> wrote:
> Hi,
>
> I’m using Nagios 3.4.4 on SLES 11 SP2. This has been running for around two months.
>
> Recently I needed to change the configuration for a service escalation to remove a contact group that would get sms alerts. I restarted Nagios and everything ran fine.
>
> However, it’s been reported that recently, the team that shouldn’t be getting the sms alerts are still getting them. When I look at the Configuration for service escalations, I can now see two entries for the same escalation, one which is the new , with the sms contact group removed and one with the old config which has the sms contact group included. But when I look at the actual .cfg file for the service escalation definition, there is not mention of the sms group anymore. I’ve checked, and re-checked and still I can’t see why this has happened.
>
> I’ve even stopped Nagios for a short while and restarted it from scratch and this still doesn’t make any difference.
>
> Has anyone else see any oddities like this where config changes don’t seem to take effect after a restart of Nagios ?
>
> Is there a “cache” file I can remove from the configuration forcing nagios to recreate it from scratch so that reads the rest of the .cfg files properly ?
>
> Any pointers / ideas on where I go from here would be really appreciated.
>
> Regards,
> Deborah
>
>
> Deborah Martin
>
> Kognitio Analytical Platform Support
> ______________________________________________________________________
> Direct +44 1344 788670 Switch +44 1344 300770 | Deborah.martin at kognitio.com
> ______________________________________________________________________
> <image001.jpg>
> www.kognitio.com
> <image002.jpg> <image003.jpg> <image004.jpg> <image005.jpg> <image006.jpg>
>
>
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> --
> Davor Grgicevic
>
> This e-mail and any files transmitted with it are strictly confidential and intended solely for the use of the individual or entity to whom they are addressed. If you are not the intended recipient, please delete this e-mail immediately. Any unauthorised distribution or copying is strictly prohibited.
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> ------------------------------------------------------------------------------
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> that delivers powerful full stack analytics. Optimize and monitor your
> browser, app, & servers with just a few lines of code. Try New Relic
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