I am having issues with Nagios recently. I recently upgraded to Nagios 3.2 (from 3.0.5) on a computer running Ubuntu 8.04 to try and fix my problem but it did not make a difference. The problem that I have is that Nagios is not performing checks any more. When I go check a service the date for the 'Next Scheduled Active Check' is set to a date in the past. Looking in the log files I sometimes see that services are being orphaned. I have set up Nagios to receive SNMP traps as well and I can still receive those even though no service checks are being made. Trying to force a service check does not do anything either. I have 141 services total so I don't think I am overloading the system.
Does anyone know how to get my Nagios up and running again?