Hi Ted, I understand the distinction - I *did* have host checks actively scheduled (ie. the host parameter 'check_interval' set to 1 - this is now 0 so host checks shouldn't be scheduled, right?) Yet Nagios IS checking the hosts every few minutes roughly, regardless of child service status.
Here's a dead simple example - the FH-Gateway - it has a single service, which is a Ping. The host also has a Ping set as it's active_check_command parameter. Now, if I show you the service breakdown for the Ping _service_ on FH-Gateway: Current Status: OK Status Information: PING OK - Packet loss = 0%, RTA = 3.02 ms Performance Data: Current Attempt: 1/2 State Type: HARD Last Check Type: ACTIVE Last Check Time: 08-11-2006 20:49:37 Status Data Age: 0d 0h 0m 51s Next Scheduled Active Check: 08-11-2006 20:50:37 Latency: 0.607 seconds Check Duration: 9.013 seconds Last State Change: 08-11-2006 10:46:46 Current State Duration: 0d 10h 3m 42s Nagios reports it's been in the same state (ie. OK) for 10 hours, 3 minutes, and 42 seconds right? So why was the host checked only a few seconds ago? Host Status: UP Status Information: PING OK - Packet loss = 0%, RTA = 0.27 ms Performance Data: Current Attempt: 1/2 State Type: HARD Last Check Type: ACTIVE Last Check Time: 08-11-2006 20:50:49 Status Data Age: 0d 0h 0m 39s Next Scheduled Active Check: N/A Latency: 9.113 seconds Check Duration: 9.011 seconds Last State Change: 07-11-2006 06:20:35 Current State Duration: 1d 14h 30m 53s Last Host Notification: N/A Current Notification Number: 0 Is This Host Flapping? NO Percent State Change: 0.00% In Scheduled Downtime? NO Last Update: 08-11-2006 20:51:16 If the general line of thinking is correct, Nagios should have last checked the host back at (or around) 10:46 this morning when there was a blip in the service check. But it didn't. It does check them every 1-2 minutes. My check_interval parameter is 0 - the config viewer in the web CGIs shows "enabled active checks" as NO for each host. Since I've been writing this - the above host has been checked again at 20:54:49 - exactly 4 minutes since the last check. No change in the service status - 10 hours, 9 minutes now. Any ideas? Andy. Tedman Eng wrote: > Host checks are not actively scheduled in normal operation. > > You could go months without requiring a host check, and the status age of > the host check will show something like 81 days for example. > > If you see recent host checks, then that means there was a service problem > and Nagios wanted to be sure it wasn't the host. > > Perhaps if you thought of "host check" as "network link status", it would > make the distinction more clear. > > > >> -----Original Message----- >> From: Andy Shellam (Mailing Lists) >> [mailto:[EMAIL PROTECTED] >> Sent: Wednesday, November 08, 2006 11:56 AM >> To: Sloane, Robert Raymond >> Cc: nagios-users@lists.sourceforge.net >> Subject: Re: [Nagios-users] Using Nagios to monitor >> "service-less" hosts >> >> >> Sloane, Robert Raymond wrote: >> >>>> Last Check Time: 08-11-2006 19:34:40 >>>> Next Scheduled Active Check: N/A >>>> >>>> >>> Interesting. Nagios thinks the last check was run over a month ago. >>> >>> >>> >> No, thankfully! That date is the 8th November (British format.) >> >>> You wouldn't see anything about hosts in the scheduling queue. Host >>> checks are run immediately, not through the queue. That is >>> >> why it is >> >>> best to not use them. >>> >>> >> I did when the check_interval was set to 1 in the hosts - it >> showed the >> host name and a blank service column. >> I'd mentioned this only to prove the point that the checks do >> not seem >> to be scheduled any more, so I cannot figure out why it's >> still running >> the host checks at (seemingly) regular intervals. >> >> There are no hosts under that machine (or indeed above it), and all >> services checks are up and have been for a good 6-8 hours. >> >> I'm stumped! >> >> Andy. >> >> -------------------------------------------------------------- >> ----------- >> Using Tomcat but need to do more? Need to support web >> services, security? >> Get stuff done quickly with pre-integrated technology to make >> your job easier >> Download IBM WebSphere Application Server v.1.0.1 based on >> Apache Geronimo >> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&; >> > dat=121642 > _______________________________________________ > 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 > > !DSPAM:37,45523de440411286632760! > > > ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ 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
