Simon, I'm still working on the problem of SUM aggregations and have few questions - below
On Mon, May 21, 2012 at 12:22 PM, Simon Hobson <li...@thehobsons.co.uk>wrote: > (...) > Well I only have four consolidations in my databases - designed to > for for day, week, month, year graphs. Thus it's simple to > pre-caculate the optimum resolution and timespan values for each > graph. I just use a case statement to pick one of four sets of values > and plug them into the graph generation script. > I carefully choose the timespan of the graph so that each pixel on > the graph exactly matches on consolidated data point. > - How do you calculate monthly statistics? That is, how do you deal with months having different numbers of days? - Does it mean the rrd file needs to start at the boundary of the largest consolidation period, in your case at the beginning of a year? This way your consolidation period is aligned to calendar and spans exactly a calendar R
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