Hi - hope someone can clarify if this is a bug or not, I'm running Nagios 3.2.3 on SuSE, monitoring over 100 hosts and almost 1000 checks. I have a varied number of time periods defined simply because some hosts / services are offline or don't actually run 24x7 so are not neededto be alerted on. However I have one specific group of servers that use a specific time period and they continually log this: [Mon Nov 7 21:30:00 2011] Warning: Check of service 'RDP 3389' on host 'TDUKSQLT3' could not be rescheduled properly. Scheduling check for next week... [Mon Nov 7 21:30:00 2011] Warning: Check of service 'RDP 3389' on host 'TDUKVIDC01' could not be rescheduled properly. Scheduling check for next week... [Mon Nov 7 21:30:00 2011] Warning: Check of service 'TCP 1352' on host 'TDUKAPPS22' could not be rescheduled properly. Scheduling check for next week... [Mon Nov 7 21:30:00 2011] Warning: Check of service 'TCP 1352' on host 'TDUKAPPS20' could not be rescheduled properly. Scheduling check for next week... [Mon Nov 7 23:46:00 2011] Warning: Check of service 'DEAL SERVER SERVICE TCP 4099' on host 'TDUKUBS01' could not be rescheduled properly. Scheduling check for next week... etc. These last entries all appeared last night after I'd manully "Re-scheduled the next check of this service" via the GUI in the afternoon. The time period these servers use is defined as: define timeperiod{ timeperiod_name vmguesthours alias VMWare Guest OS Hours monday 21:30-06:30 tuesday 21:30-06:30 wednesday 21:30-06:30 thursday 21:30-06:30 friday 21:30-06:30 saturday 21:30-06:30 sunday 21:30-06:30 } There's nothing unusual about the hosts defined and the templates used, but below is an example of one anyway. define host{ use unix_host_template ; Name of host template to use icon_image win40.jpg host_name TDUKSQLT3 address 192.168.75.138 alias TDUKSQLT3 192.168.75.138 } define service{ use remote-service hostgroup_name vmwarehosts service_description RDP 3389 contact_groups dtns-admins24x7,intel-support check_period vmguesthours check_command check_tcp!3389 } define host{ notification_options d,u,r max_check_attempts 3 check_interval 1 active_checks_enabled 1 notification_period 24x7 name unix_host_template ; Template shared by hosts notifications_enabled 1 check_command check_fping contact_groups unix-admins-24x7 register 0 } I've had a look around for this and its been reported before here - <a href="http://tracker.nagios.org/view.php?id=31">http://tracker.nagios.org/view.php?id=31 - but it's not clear if this is meant to be resoloved or not? For me it certainly isn't.</a> Any help would be greatly appreciated. Thanks - Julian. Julian Grunnell | Unix Analyst, Infrastructure | TD Waterhouse T: +44 (0) 113 346 2824 | M: +44 (0) 7889 352527 -------------------------------------------------------------------------------- Consider the environment. Please don't print this e-mail unless you really need to. Confidentiality: This email and its attachments are intended for the above named only and may be confidential. If they have come to you in error you must take no action based on them, nor must you copy or show them to anyone; please reply to this email and highlight the error. Viruses: Although we have taken steps to ensure that this email and attachments are free from any virus, we advise that in keeping with good computing practice the recipient should ensure that they are actually virus-free. Brokerage services provided by TD Waterhouse Investor Services (Europe) Limited (a subsidiary of The Toronto-Dominion Bank). Authorised and regulated by the Financial Services Authority (FSA registered number 141282), member of the London Stock Exchange and the PLUS market. Incorporated in England and Wales under registration number 2101863. Registered office: Exchange Court, Duncombe Street, Leeds LS1 4AX. Banking services provided by TD Waterhouse Bank N.V. authorised and regulated by De Nederlandsche Bank and the Financial Services Authority for UK Business (FSA registered number 216791). Incorporated in the Netherlands and registered as a branch in England and Wales under branch registration number BR006780. --------------------------------------------------------------------------------