Yes. I watch NTP offsets from ntpstat.rrd with the following in analysis.cfg:

HOST=%^(host1|host2) # alert if NTP offset exceeds 10ms DS ntp ntpstat.rrd:offsetms >10 COLOR=red "TEXT=NTP offset &Vms is higher than &Ums" DS ntp ntpstat.rrd:offsetms >5 COLOR=yellow "TEXT=NTP offset &Vms is higher than &Ums" DS ntp ntpstat.rrd:offsetms <=5 COLOR=green "TEXT=NTP offset &Vms is within +/-&Ums" DS ntp ntpstat.rrd:offsetms <-10 COLOR=red "TEXT=NTP offset &Vms is lower than &Lms" DS ntp ntpstat.rrd:offsetms <-5 COLOR=yellow "TEXT=NTP offset &Vms is lower than &Lms"

Also, I do a similar thing for DNS latency, where the graphs are automatically generated when I add a "dns" test configuration to hosts.cfg:

    # alert if lookups take too long (200ms or 50ms)
    DS dns tcp.dns.rrd:sec >0.05 COLOR=yellow "TEXT=Response time &V

exceeds &U seconds" DS dns tcp.dns.rrd:sec >0.2 COLOR=red "TEXT=Response time &V exceeds &U seconds"

These go into my SLA-type reports to management.

Cheers Jeremy

On 13 December 2012 01:55, Kevin King <kc6ovd at gmail.com> wrote:

Anyone doing any alerting on graphed rrd data? Just looking for some sample of what you might be doing.****

---

-Kevin****

---

---

Xymon mailing list Xymon at xymon.com http://lists.xymon.com/mailman/listinfo/xymon