Nagios restart mucks with service check schedule
Robert Nelson
rnelson at windchannel.com
Mon Nov 1 20:19:11 CET 2004
Hey,
I'm using Nagios v1.2 and running into a bit of a problem with
scheduling. My template specifies 5 minutes for normal checks, and in
select definitions I've been setting it to 1 minute. Doesn't seem to be
taking that into account on a reload/reschedule, however.
I've got the following services template in use:
# Standard service definition, with standard check options
define service{
name standard-service
active_checks_enabled 1
passive_checks_enabled 1
parallelize_check 1
obsess_over_service 1
check_freshness 0
notifications_enabled 1
event_handler_enabled 1
flap_detection_enabled 1
process_perf_data 0
retain_status_information 1
retain_nonstatus_information 1
is_volatile 0
check_period 24x7
max_check_attempts 3
normal_check_interval 5
retry_check_interval 3
notification_interval 480
notification_period 24x7
notification_options w,u,c,r
register 0 }
I then have the following service:
define service{
use standard-service
host_name westst_cr1.windchannel.com
service_description Serial3/0
contact_groups router-admins
check_command check_iftraffic!Serial3/0
process_perf_data 1
normal_check_interval 1
}
After restarting nagios (service nagios reload), Nagios reschedules
service checks. For someone reason, this check (and others like it) get
scheduled for up to 5 minutes later, depending on where they fall in the
semi-random scheduling. After that first check is processed, the next
check is scheduled for 1 minute later. Normally I wouldn't worry about
it, but I'm processing performance data on this service too.
Is there any known issue with service check scheduling I should be aware
of, or a way around it?
Rob Nelson
Network Engineer
Windchannel Communications
919-538-6326
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