Whoever uses Nagios 3.2.0 will encounter a bug when a change of time has occured in his area. The bug results in a scheduling problem where service and host checks are no longer executed. This can be confirmed by checking the scheduling queue : all hosts and services will be scheduled to be checked at 11 PM as of today…
This problem can be fixed easily : just follow these steps.
1. Edit nagios.cfg of all your nagios servers and modify the following line :
2. Restart Nagios
3. Check scheduling queue : Everything should be back to normal
Nagios will not keep the scheduling information in the memory stack, as a result the entire scheduling queue will be computed again. Don’t forget to change the “use_retained_scheduling_info” parameter, otherwise restarting Nagios will not be enough to fix your problem.
After checking that everything is ok, make sure to set use_retained_scheduling_info back to 1 (use_retained_scheduling_info=1) in order to keep scheduling information for you next restart
We hope that helped you out