Nagios 1.2 issue in calculated availability

Nuno Carvalho nrc at eurotux.com
Fri May 5 15:58:17 CEST 2006


Good day,

We are experiencing some problems with Nagios calculating services 
availability.  If we check the logs we can see messages showing the service 
status going CRITICAL and OK, but if we check the grapich that the 
availability feature creates we come up with wrong information. It seems that 
Nagios isn't using all the information in the logs to generate the graphic. 
To try to be more specific the logs tell me that some_service went critical 
and back: 

[Fri Apr  7 12:21:56 2006] SERVICE ALERT: 
some_host;some_service;CRITICAL;HARD;1;No route to host
(..)
[Fri Apr  7 12:23:54 2006] SERVICE ALERT: 
some_host;some_service;OK;SOFT;2;HTTP OK HTTP/1.1 200 OK - 61872 bytes in 
10.072 seconds

it then shows some_service going critical again some days later:

[Tue May  2 15:34:03 2006] SERVICE ALERT: 
some_host;some_service;CRITICAL;HARD;5;Connection refused

When we check availability for this service it just tells us that the service 
was always critical. Next to the availability report we can check the service 
logs entry and it's strange that it doesn't show a lot on entries between 
those two specific days, althought we see them a lot in the log files.

2006-04-07 12:21:56	2006-04-19 03:43:32	11d 15h 21m 36s	SERVICE CRITICAL	No 
route to host
2006-05-02 15:34:03	2006-05-02 15:42:12	0d 0h 8m 9s	SERVICE CRITICAL	
Connection refused

Hope to have gather all the info needed. Anyone has experiencing  this kind of 
situation. We are running Nagios:

Nagios 1.2
Last Modified: 02-02-2004

Any help with this issue would be greatly appreciated.

Best regards,
-- 
Nuno Carvalho <nrc at eurotux.com>
Eurotux Informática, S.A.
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