[xymon] strange problem with RRD graphs

[Steve Holmes]

On Wed, Sep 29, 2010 at 12:40 PM, Alessandro Tinivelli <
alessandro.tinivelli at monrif.net> wrote:

>  hi, i have installed the lastest stable release of xymon (previously
> using hobbit) and added my old config files, then added some new host to be
> monitored and all ok for a few days.
>
>
>
> Suddenly today i've added a new host on bb-hosts, all was working fine
> except that all the graps reported values of "nan".
>
> Tried to remove, then delete with drop host command with no solution.
>
>
>
> Then i tried to monitor another host -my own pc, just ping test-, added to
> bb-hosts and got a bad suprise: same problem: graphs reporting "nan".
>
>
>
> The strange fact is that all other "old" host has good graphs still reading
> and showing correct data.
>
>
>
> Please help :) thanks in advance.
>
>
>
> Alessandro
>


For how long have you waited for the new graphs to behave? Sometimes it
takes a few cycles (1 cycle = 5 to 10 minutes). I've seen it take 20 or 30
minutes for the icons to show up on the web page. Even then there might not
be enough history for a graph to be meaningful (resulting in NaN) for a
couple of cycles.

Steve

-- 
The test of a democracy is not the magnificence of buildings or the speed of
automobiles or the efficiency of air transportation, but rather the care
given to the welfare of all the people. -Helen Adams Keller, lecturer and
author (1880-1968)

Truth never damages a cause that is just. -Mohandas Karamchand Gandhi
(1869-1948)
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