AW: Details of Nagios Reporting

[Mohr James]

Hi Marc!

Thanks for the reply. What I had done with the trends.cgi and histogram.cgi was to simply copy them from another machine. Apparently that does not work as easily as one would hope, although the libraries are there. Safest things is always recompile everything.

regards,

Jim Mohr

>> -----Ursprüngliche Nachricht-----
>> Von: nagios-users-admin at lists.sourceforge.net 
>> [mailto:nagios-users-admin at lists.sourceforge.net] Im Auftrag 
>> von Marc Powell
>> Gesendet: Mittwoch, 22. Juni 2005 20:23
>> An: Nagios-users at lists.sourceforge.net
>> Betreff: RE: [Nagios-users] Details of Nagios Reporting
>> > 
>> > As the subject says, I am looking for details of how the nagios 
>> > reporting works (versions 1.2 and 2.0). In particular, I am looking
>> for
>> > confirmation that reporting cgi's will automatically go 
>> through the 
>> > archived log files to report. Looking through trends.c, I 
>> see that the 
>> > number of archived logs to used is based on the 
>> 'backtrack_archives' 
>> > variable and the default used is dependant on the 
>> frequency the logs
>> are
>> > rotated. It *seems* that regardless of what you set "Backtracked 
>> > archives" to, it will automatically pull out the correct number of 
>> > archived logs. Is this correct?
>> 
>> Nagios will automagically figure out what log files it needs 
>> to look at for your reporting period only. The backtracked 
>> archives feature is useful to determine the initial state of 
>> the host/service at the beginning of the reporting period. 
>> For example, if you run a report for this month but don't 
>> have any log entries for the host or service in question 
>> until the 20th, nagios will show the first 19 days as 
>> undetermined. If there was a log entry showing the host was 
>> OK on May 29th, you can use the backtracked archives feature 
>> to include that log file as well to set the initial state. 
>> You can also use the First assumed state option if you want 
>> to assume an initial starting state if there is no log entry.
>> 
>>  
>> > I probably could see this better, if the graphics were 
>> being displayed 
>> > correctly, but I am getting "Premature end of script headers: 
>> > trends.cgi" (as well as histogram.cgi ), but that is a different
>> issue.
>> 
>> Check your web server error logs. They'll detail the 
>> problem. Typically the GD libs are not available or not 
>> where they were at compile time.
>>  
>> > Another issue is the alert history. Is there any way to specify a 
>> > specific date? Is there any way of specifying a range of dates?
>> 
>> No but you could grep the information out of the archived 
>> log files if you needed that.
>>  
>> > Also I would be interested in any documentation describing 
>> the details 
>> > of other aspects of the reporting.
>> 
>> There isn't much (http://nagios.sourceforge.net/docs/1_0/cgis.html).
>> Most of the CGI's are pretty standard/self explanatory if 
>> you're familiar with monitoring systems. I haven't really 
>> seen any good end-user documentation. Maybe others have...
>> 
>> --
>> Marc
>> 
>> 
>> 
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