nagios service flapping

[Andy Shellam]

Rahul,

Look through your Nagios logs or run an availability report on one of 
the services for the time the flapping was happening.  This report will 
list what the output was at the time it went from an OK to CRITICAL (or 
WARNING) and vice versa - it should give you a pointer to the root cause.

At first guess, and as you've identified the common factor to be NRPE, 
I'd be looking at the network between your Nagios machine and the NRPE 
client/s, or possibly even the NRPE service on the client/s.

Andy

Rahul Nabar wrote:
> I just had a bunch of  services start flapping on me. THe common 
> factor seems all of these were services monitored by nrpe.
>
> //////////////
> Notifications for this service are being suppressed because it was 
> detected as having been flapping between different states (22.4% 
> change >= 20.0% threshold). When the service state stabilizes and the 
> flapping stops, notifications will be re-enabled.
> //////////////////
>
> My nrpe.cfg is pristine except for
>
> command[check_disk_scratch]=/usr/local/nagios/libexec/check_disk -w 20 
> -c 10 -p /scratch
>
> What could be causing a service to start flapping. Never happened to 
> me before. ANy debug sugesstions?
>
> The Status for the service is correct though.
> DISK OK - free space: /scratch 14886 MB (52% inode=98%):
>
> -- 
> Rahul
>
> snippet from services.cfg
> define service{
>         use rpn_intermediate_service
>         hostgroup_name npre-compute-nodes
>         service_description /scratch Partition on nodes
>         check_command check_nrpe!check_disk_scratch             ; 
> details defined in the nrpe.conf
> }
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