[Nagiosplug-help] Regarding Reports in Nagios

[Marc Powell]

On Aug 26, 2009, at 6:49 AM, Saiprasad @ Yahoo wrote:

> I am generating an Availability report in Nagios but the output is  
> something weired wherein the Event Duration does not give the data  
> of all 24 hrs. I think the attached JPG will make my question more  
> clear.

The event duration is simply the time between log entries related to  
that host/service.

> Can someone please throw some light on this, as this is very serious  
> for me and does not give me an accurate data.

The summary data above this section is 'accurate'. The entries you  
note are points at which you are restarting nagios I expect and you  
have log_initial_states enabled in nagios.cfg.

When generating this list, nagios looks through nagios.log (or the  
archives) for any entries matching the host/service, calculates the  
times between them and displays them. The state does not factor into  
this particular calculation. There are features of nagios where that  
wouldn't be desired (state stalking, for example).

Nagios does not normally log OK states unless it is a recovery from an  
outage so under 'normal' circumstances, the breakout list would be  
more like what you are expecting. Turn off 'log_initial_states' to do  
that.

--
Marc

p.s. This question is more relevant on nagios-users than here...