[ntp:questions] Selective peerstats collection

David Lord snews at lordynet.org
Sun Dec 2 17:51:44 UTC 2012


David Taylor wrote:
> I would like to add peerstats monitoring, but only for certain servers - 
> some on my LAN.  Something like:
> 
> server <LAN-address> iburst nopeerstats
> server <LAN-address> iburst peerstats
> server <LAN-address> iburst peerstats
> server <WAN-address> iburst nopeerstats
> server <WAN-address> iburst nopeerstats
> pool us.pool.ntp.org iburst nopeerstats
> 
> I haven't seen any way of doing this, but perhaps I've missed an option. 
>  The problem is that peerstats files can be quite large (especially on 
> stratum-1 servers running at 16s polling), and I'm only interested in 
> data from a couple of other servers.
> 
> If there are others interested in this perhaps I might suggest an 
> enhancement.



I use peer_summary (and loop_summary) from the ntpd distro. It
may not be what you are looking for. It should also be easy to
set a cron job to filter peerstats each day to extract entries
for peers you want.

This is from peer_summary on 192.168.59.67:

Two stratum-1 on the lan, 192.168.59.61 from a Sure gps/pps
usually with offset < 3 usec, and 192.168.59.64 from a Conrad MSF
receiver usually with offset < 300 usec.

peerstats.20110101
        ident     cnt     mean     rms      max     delay     dist     disp
==========================================================================
192.168.59.22    112    0.158    0.624    1.557    0.567   23.763    9.854
192.168.59.61     90    0.585    0.812    1.731    0.811   22.482    9.296
192.168.59.64    207   -0.421    0.853    3.106    0.415  192.259    7.576
192.168.59.210    92    0.424    0.566    1.567    0.630   20.648    8.252
158.152.1.76      55   -0.088    0.768    2.052   30.318   46.053   16.456
130.159.196.117   52   -0.124    0.731    1.691   39.524   51.098   16.490

peerstats.20110102
        ident     cnt     mean     rms      max     delay     dist     disp
==========================================================================
192.168.59.64    123   -0.400    0.614    1.926    0.439   75.387   11.580
130.159.196.117   54   -0.450    0.605    1.349   39.723   51.278   17.175
192.168.59.210    70    0.067    0.357    0.779    0.509   20.887   10.380
192.168.59.22     69    0.184    0.652    1.586    0.510   22.603   11.703
192.168.59.61     68   -0.057    0.710    1.769    0.814   21.502   10.176
158.152.1.76      51   -0.159    0.403    0.897   30.348   46.637   18.630

peerstats.20110103
        ident     cnt     mean     rms      max     delay     dist     disp
==========================================================================
192.168.59.61     66    0.122    0.869    2.253    0.791   21.119   10.249
192.168.59.22     80   -0.478    0.943    1.976    0.500   22.926   11.451
192.168.59.210    76    0.284    0.502    1.273    0.571   23.238   11.904
192.168.59.64    137   -0.011    0.542    1.415    0.424  194.827   14.167
158.152.1.76      49   -0.326    0.566    1.631   30.360   46.568   18.700
130.159.196.117   49   -0.367    0.966    2.939   39.840   51.162   18.083


David



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