[mrtg] Using perhour option
alex at 8-p.ca
Wed Jun 14 21:48:19 MEST 2006
I'm using perhour option to graph some usage stats (number of pages
printed on HP printer). It doesn't make sense to count how many pages
are printed each second, but it does make sense to track it by hour.
So I attempted to use "perhour" option. However, after printing
couple of pages on the printer, the graphs have strange peaks, showing
something like couple of hundred pages printed per hour (which is
wrong). The data is polled from the printer every 5 minutes (with
some other data, like network traffic, memory usage and toner levels).
My wild guess is that the problem is I'm polling the data way too
often, and MRTG isn't smart enough to handle this properly.
To solve the problem, I was thinking about creating separate cronjob
that runs only once an hour to poll only this data from the printer.
If I'm right that the problem is simply polling the data too often, it
should solve it. However, than I'd need to wait for one hour for
graphs to update (and I'd like more realtime response if possible).
The entry in config file I currently have looks something like this:
.188.8.131.52.184.108.40.206.220.127.116.11.1&.18.104.22.168.22.214.171.124.126.96.36.199.1:public at 192.168.1.11
Title[hp.pages]: Pages Printed
PageTop[hp.pages]: <h1>Pages Printed -- HP LaserJet</h1>
YLegend[hp.pages]: # Pages per Hour
Legend1[hp.pages]: Pages Printed
Is there some better way to plot this kind of data?
See Ya' later, alligator!
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