On Thu, 2007-08-30 at 14:12 +0200, Ilya Ruprecht wrote: > Furthermore, the "notification_interval" in the service-part is described as > "Re-notify about service problems every XXX". > Note: "about service problems". > Now, if i set the notification_interval to a lower value then a > "normal_check_interval", i.e. "9", i get following warning-message > at nagios pre-flight-check: [snip] > But, hell, what the "normal_check_interval" have to do with > "notification_interval"?! > These two are completely different things! Or have i misunderstood something?
Perhaps this will help clear things up. The "notification_interval" option sets an upper limit on how often notifications are sent. The "normal_check_interval" options controls how often the check is run. If notification_interval=10 and normal_check_interval=5, you can get a situation like this one (I'll use t=XX to try and convey the timeline when events occur). [t=0] Check runs. [t=0] Check fails. [t=0] Nagios sends notification. [t=5] Check runs [t=5] Check fails [t=5] Time since last notifications is 5 which is less than notification_interval=10. Nagios prevents notification. [t=10] Check runs. [t=10] Check fails. [t=10] Time since last notification is 10 which is greater than or equal to notification_interval=10. Nagios sends notification. However if notification_interval=5 and normal_check_interval=10, you get this. [t=0] Check runs. [t=0] Check fails. [t=0] Nagios sends notification. [t=10] Check runs. [t=10] Check fails. [t=10] Time since last notification is 10 which is greater than or equal to notification_interval=10. Nagios sends notification. Nagios only sends notifications immediately after a check (it won't resend an old value). So if normal_check_interval >= notification_interval, you effectively have notification_interval = normal_check_interval. That is why Nagios prints the warning message: "Warning: Service 'SSH' on host 'vpn-gw1-local' has a notification interval less than its check interval! Notifications are only re-sent after checks are made, so the effective notification interval will be that of the check interval." That seems to be what is happening in your case. -- Rick Mohr Systems Developer Ohio Supercomputer Center ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ Nagios-users mailing list Nagios-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/nagios-users ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null