Nagios Support Forum

Hi, my nagios core 3.5 with p4pnagios 0.6.25 was working fine before i change the system time from 21:00 to 14:00, and now all the graph showing nan value, ncpd is running, rrdcached is running, below is the log from ncpd:

[11-19-2015 21:35:35] NPCD: Caught Termination Signal - Astalavista... baby
[11-19-2015 21:35:40] NPCD: npcd Daemon (0.6.25) started with PID=17538
[11-19-2015 21:35:40] NPCD: Please have a look at 'npcd -V' to get license infor mation
[11-19-2015 21:35:40] NPCD: HINT: load_threshold is disabled - ('0.000000')
[11-19-2015 21:53:24] NPCD: Caught Termination Signal - Astalavista... baby
[11-19-2015 21:53:31] NPCD: npcd Daemon (0.6.25) started with PID=20566
[11-19-2015 21:53:31] NPCD: Please have a look at 'npcd -V' to get license infor mation
[11-19-2015 21:53:31] NPCD: HINT: load_threshold is disabled - ('0.000000')
[11-19-2015 14:18:40] NPCD: Caught Termination Signal - Astalavista... baby
[11-19-2015 14:18:47] NPCD: npcd Daemon (0.6.25) started with PID=25230
[11-19-2015 14:18:47] NPCD: Please have a look at 'npcd -V' to get license infor mation
[11-19-2015 14:18:47] NPCD: HINT: load_threshold is disabled - ('0.000000')

As you went back in time it may take time to regenerate graphs, have they started to regenerate on their own?

Additionally, did you restart the nagios service after changing the time?