What I’d like is for it to “look” at my cacti graphs and based on a historical value, send an email if it goes above or below a certain threshold.
For instance, it will look at a traffic graph. It is Tuesday today, so I want it to look at the value for this time last week and if it deviates significantly, send a warning.
However, it would need to be smart enough to not send a warning if last weeks spike was an anomaly and this weeks data is normal.
nagios makes immediate checks basing on plugins… cacti has a threshold plugin which MAYBE does what you are looking for…
I think there’s a fault in how you want to monitor your graphs… having a check of that type would give you an alert for a full week because of a network spike on any day… i don’t think you want an alert ll the time even if 99% of the time the parameter you are looking at is ok.