Thanks, I think I found what I needed from this thread too: http://community.zenoss.org/docs/DOC-4426. Newly created graphs now seem to produce the LAST value as I want.
Is it possible to update the existing (old) graphs to include the LAST value from now on, or do I need to start with fresh graphs and lose the history (even though it is AVERAGE)? Rgds, > Date: Mon, 2 Apr 2012 13:18:27 +0100 > From: Simon Hobson <li...@thehobsons.co.uk> > Subject: Re: [rrd-users] Change RRD Graph Definitions > To: James McDonald <j.mcd...@gmail.com>, rrd-users@lists.oetiker.ch > Message-ID: <p06240802cb9f48c14...@simon.thehobsons.co.uk> > Content-Type: text/plain; charset="us-ascii" ; format="flowed" > > James McDonald wrote: > > >The standard built-in graph defintion is as follows : > > > >[test-name] > > > >..... > > > >DEF:p@RRDIDX@=@RRDFN@:sec:AVERAGE > > > >LINE2:p@RRDIDX@#@COLOR@:@RRDPARAM@ > > > >GPRINT:p@RRDIDX@:AVERAGE: \: %5.1lf%s (avg) > > > > > > > >Do I need to simply delete the related graphs, change the definition > >accordingly for the "LAST", and then have the graphs recreated? > > I think so, but you may need to check what's in the RRD file. If you > were selecting Min or Max then you'd need a Min or Max consolidation > - min/max of an average consolidation doesn't give you the same thing. > I'm not sure about Last - but I think the same applies, ie Last of a > 2hr Average consolidation would be the last value after computing the > 2hr average. > > -- > Simon Hobson > > Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed > author Gladys Hobson. Novels - poetry - short stories - ideal as > Christmas stocking fillers. Some available as e-books. >
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