[Help] Behaviour of on-demand function for host check
Yu Watanabe
yu.watanabe at jp.fujitsu.com
Wed Sep 1 09:01:05 CEST 2010
Hello all.
I would like to get some help with the on-demand ability for host check.
In the manual it says ,
"Regularly scheduled host checks are optional. If you set the check_interval option in your host definition to zero (0), Nagios will not perform checks
of the hosts on a regular basis. It will, however, still perform on-demand checks of the host as needed for other parts of the monitoring logic. "
I thought if the 'check_interval' parameter was not specified ,
the host check would become as on-demand check.
However, I have a following definition on a certain host
but the check interval is '5 min'.
* I have the time unit as the defualt value.
# host object definition
define host {
host_name elangen
alias elangen
address 192.168.1.154
parents localhost
hostgroups linux-servers
check_command check-host-alive
use generic-host
register 1
}
# host template object definition
define host {
name generic-host
check_command check-host-alive
max_check_attempts 3
retry_interval 1
check_period 24x7
event_handler_enabled 1
flap_detection_enabled 1
process_perf_data 1
retain_status_information 1
retain_nonstatus_information 1
contacts nagiosadmin
contact_groups admins
notification_period 24x7
notification_options d,u,r,f
notifications_enabled 1
action_url /pnp4nagios/index.php/graph?host=$HOSTNAME$&srv=_HOST_
failure_prediction_enabled 1
register 0
}
Do I have to set the actual 'check_interval' as 0 in order to use the on-demand ability?
Thank you
Yu Watanabe
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