[smokeping-users] After a lot of alerts, smokeping do not update the rrd anymore

[Nicolas KARP]

I think it's more related to the time spent by smokeping to do his Job.
When my ISP failed, a lot of Targets were unresponsive..

 FPing: WARNING: smokeping took 493 seconds to complete 1 round of polling.
It should complete polling in 300 seconds..
 You may have unresponsive devices in your setup.

Is it possible ?   I just see one line for this alarm in my smokeping logs
but on my graphs, i see a blank for 1 or 2 hours...
So far, I have 94 targets which are using the Fping probes. Do I need to
reduce the offset ?

Best Regards,

Nicolas.

2012/8/6 G.W. Haywood <ged at jubileegroup.co.uk>

> B11;rgb:ffff/ffff/ffffHi there,
>
>
> On Mon, 6 Aug 2012, Nicolas KARP wrote:
>
>  I ran several smokeping for several months now and all was fine until we
>> had an issue with our ISP... Following these issues, smokeping sent a lot
>> of alarms which is what we wanted :-) But after that, smokeping stopped to
>> update the RRD file and the graphs were not updated.
>>
>> Do you know what could cause this problem with smokeping ?  Too much
>> unresponsive devices ?
>>
>
> Are you by any chance using logarithmic graphs?
>
> I've seem Smokeping fail to update graphs (and the smokeping processes
> hanging using 100% CPU) when using logarithmic graphs.  I have a patch
> which has been in testing for a week but seems stable enough to release.
>
> The problem I had was that sometimes when you use logarithmic graphs the
> minimum for the vertical scale is greater than the maximum, and this
> causes something in RRD to get confused.
>
> My fix is to make sure that the minimum is less than the maximum, but it
> seems to me that a fix is also needed in RRD for the problem behaviour.
>
> In Smokeping.pm:
> ------------------------------**------------------------------**----------
>   '--title',$desc.$from,
>   '--rigid',
> ! '--upper-limit', ($max->{$s}{$start} > 0.01 ? $max->{$s}{$start} :
> '0.01'),
>   @log,
>   '--lower-limit',(@log ? ($max->{$s}{$start} > 0.01) ? '0.001' : '0.0001'
> : '0'),
> --- 1371,1377 ----
>   '--title',$desc.$from,
>   '--rigid',
> ! '--upper-limit', $max->{$s}{$start},
>   @log,
>   '--lower-limit',(@log ? ($max->{$s}{$start} > 0.01) ? '0.001' : '0.0001'
> : '0'),
> ------------------------------**------------------------------**----------
>
> Apologies for any line wrapping.
>
> --
>
> 73,
> Ged.
>
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