Pete Stephenson wrote: > I've been interested in using MRTG (or a similar graphing utility) to > graph various properties of my time server like the offset, jitter, > frequency, number of unique users, number of abusive users, etc. > > I was reviewing David Taylor's page at > http://www.david-taylor.myby.co.uk/ntp/NTPandMRTG.txt and it's been most > helpful. > > However, I also see that there are several other public time servers > that are generating quite detailed graphs and I was wondering if anyone > would be willing to share the scripts used to get the numerical data > from NTP, format it into a way that MRTG can interpret, and the MRTG > config files needed to analyze and graph it. > > Since MRTG only deals with integers, it rounds (or truncates, not 100% > sure) decimal values to the closest integer. This isn't terribly useful, > as I'd like to see some of the finer changes over time. I attempted to > multiply all the decimal values by 1000 and have MRTG work with those, > and this has met with some success, but I'd much rather have the graphs > show something in a reasonable scale (like 0-20ms offset, rather than > 0-20,000us). Obviously this can be done, as I've seen graphs for NTP > servers made this way, but I'm getting a headache wrangling (and > failing) with MRTG to get it right. > > Cheers! >
Hi Pete, Like Roger said, you should try RRDtool. It will do what you are asking for. I have my scripts available that I use to create my RRDtool plots. Check out http://saturn.dennishilberg.com/ntp.html for the data plots, and http://saturn.dennishilberg.com/scripts/ntp for the actual scripts. Also, be sure to check out Steven Bjork's website http://www.wraith.sf.ca.us/ntp/index.html#monitoring for help with creating RRDtool plots with ntp. It helped me out a lot with figuring out RRDtool, as documentation alone is not much help. The documentation is somewhat helpful though, http://oss.oetiker.ch/rrdtool/doc/index.en.html . But it's much more helpful to see some scripts in action rather than rely completely on the documentation, IMHO. Good luck! -- Dennis Hilberg Jr <timekeeper(at)dennishilberg(dot)com> NTP Server Information: http://saturn.dennishilberg.com/ntp.html _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions