Availability Report

[Rob Pitman]

Hi,

I had exactly the same problem. In my case, it was because my Nagios server 
is synchronized to an NTP server, and the clock on my Nagios server is 
gaining a second or two every day. To compensate, NTPD adjusts  the system 
clock backwards in time by a second or two every day.

As I explained in my posting to this mailinglist last Wednesday (May 7), 
there is a bug in "compensate_for_system_time_change" in the file 
nagios.c; it should _not_ adjust the run_time for log rotation events. This 
bug is present in nagios-1.0 and in nagios-1-x-cvs.

The problem is that the function "compensate_for_system_time_change" adjusts 
the run-time of the log rotation event (along with all other timed events) 
so that it runs a second BEFORE midnight (I am using daily log rotation). 
Since the log rotation event is a recurring event, another log rotation is 
_immediately_ scheduled for one second later. The second log file is empty. 
As a result, the "trends", "history" and "notifications" CGIs do not 
display any data for any of the archived logfiles.

Is there someone on this mailinglist who incorporates these bug fixes into 
Nagios? I haven't seen any response to my posting of May 7. I also 
submitted a suggestion about the comment that is associated with scheduled 
downtime (also on May 7).

Regards
Rob Pitman

On Monday 12 May 2003 09:36, Tonny Verhoef wrote:
> Hi,
>
> I have nagios running, and it does send messages when services and/or
> systems fail and recover so it seems to works Ok.
>
> However, in the availability reports it ALWAYS reports "100% Time
> Undetermined", even for the desktop PC's I added for test. These go down
> every evening and are powered-up in te morning. (and messages are send
> accordingly for those events)
>
> Accordingly to the FAQ I have set the settings as follows :
>   [Nagios.cfg]
>   log_initial_states=1
>   retain_state_information=1
>   state_retention_file=/usr/local/nagios/var/status.sav
>   retention_update_interval=60
>   use_retained_program_state=1
>
> Why don't I get values in the avalability reports ???
>
> Regards,
> Tonny



-------------------------------------------------------
Enterprise Linux Forum Conference & Expo, June 4-6, 2003, Santa Clara
The only event dedicated to issues related to Linux enterprise solutions
www.enterpriselinuxforum.com