New question #208654 on Graphite: https://answers.launchpad.net/graphite/+question/208654
Hi, I'm trying to (ab)use graphite to draw graphs on IP network data usage (BGP peering/transit if you care). I have the metrics in the system and i can draw all sorts of graphs without much trouble, but i can't figure out the nPercentile function. As you may or may not know, in purchasing transit traffic, the 95th percentile calculation is all that counts... just to make sure i am on the same page as ow the graphite percentile works, this is what i'm talking about: http://en.wikipedia.org/wiki/Burstable_billing. As you can see on this image: http://www.ipaddr.nl/KPN.png i am capable of drawing the metric "acct_in.KPN_Transit.0-bytes" as such, however if i apply the nPercentile function as such: "nPercentile(acct_in.KPN_Transit.0-bytes,95)" the graph doesn't draw (broken image icon...). Logging says: /opt/graphite/storage/log/webapp$ tail -f * ==> access.log <== x.x.x.x - - [15/Sep/2012:11:46:44 +0200] "GET /render/?_salt=1347702416.535&width=894&height=403&target=nPercentile(acct_in.KPN_Transit.0-bytes%2C95) HTTP/1.1" 500 905 Any clues? Kind regards, Dennis -- You received this question notification because you are a member of graphite-dev, which is an answer contact for Graphite. _______________________________________________ Mailing list: https://launchpad.net/~graphite-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~graphite-dev More help : https://help.launchpad.net/ListHelp
