ngraph sometimes not display graph

[Stijn Gruwier]

Hello,
Also ran into this, so I patched nagiosgraph to calculate the heartbeat 
value on a per service basis (= 3 times the interval between the first 2 
service checks). I tried to post this on the nagiosgraph forum but for 
some strange reason I couldn't log in. Normally this patch works fine 
but there might be situations where a wrong heartbeat gets calculated. 
For example when a user reschedules a Nagios service check. The ideal 
solution would be a Nagios macro/environment variable that tells us the 
normal_check_interval for a service.
I hope someone puts this into the official version of nagiosgraph.

Regards,
Stijn




Frost, Mark {PBG} schreef:
> I had this same issue at first.  I later discovered that that's what 
> the heartbeat parameter (really an RRD parameter) in the nagiosgraph 
> config file is about.  I found the default value to be way too short 
> for the variety of checks we ran.  I read about what it did and turned 
> the interval up considerably and we've had nice graphs for everything 
> we've got for many months now.
>  
> I do with there was some way with Nagiosgraph to define per-check-type 
> heartbeat intervals rather than one interval for everything that runs 
> in Nagiosgraph.
>  
> Mark
>
>     ------------------------------------------------------------------------
>     *From:* nagios-users-bounces at lists.sourceforge.net
>     [mailto:nagios-users-bounces at lists.sourceforge.net] *On Behalf Of
>     *Jeffrey Lensen
>     *Sent:* Monday, May 14, 2007 2:52 AM
>     *To:* nagios-users
>     *Subject:* Re: [Nagios-users] ngraph sometimes not display graph
>
>     My experience with having Nagios creating graphs, is the problem
>     that checks don't manage to finish in time, which creates faulty
>     data in the RRD database. RRD has to receive new data at a certain
>     time-interval in order to create proper RRD files. Since the
>     execution time of Nagios checks can be somewhat unpredictable at
>     times, it tends to not be able to do this in time.
>
>     Ofcourse I don't know your Nagios setup, but that's my experience
>     with a Nagios setup with over 150 hosts and 7000 checks ;)
>
>     -----------------------------------
>     Jeffrey Lensen
>     System Administrator Hyves
>     hyves page: http://skyler.hyves.nl
>     mail/msn:   jeffrey at hyves.nl
>         
>
>
>
>     Hugo van der Kooij wrote:
>>     On Thu, 10 May 2007, hendro budianto wrote:
>>
>>       
>>>     I'have a problem with nagiosgraph display.
>>>     Some times the graph is display (have a data) but
>>>     after a  few minutes there are no data to display.It's
>>>     something wrong with my nagios setting ?
>>>     I've check the ngraph.log but everything is OK, the
>>>     REGEX grub the result to rrd file.
>>>     Any suggestions ?
>>>         
>>
>>     Not much to go. So this question is unanswerable.
>>
>>     But about a year ago I wrote about a number of things which seem to have 
>>     an impact on the proper working of ngraph.
>>
>>     Hugo.
>>
>>       
>
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