I am collecting total accumulation data from a water meter. The data collected is the last value during different time periods. 10s, 30 minutes and 1 day. The meter resets every day at midnight.
I create daily, weekly and monthly graphs. They all resemble a sawtooth shape with a straight line down to zero at midnight. The monthly graph is where I am having issues. I was hoping that it would show daily total, the last value just before it reset. However is just shows a more compressed sawtooth. I next set the step to be 86400s, or 1 day. This created a graph that is very close to what I want except that the end of the 1 day step is not at midnight. DEF:ds=/var/www/client/rrds/reg_UID_105.rrd:data_source:LAST:step=86400:start=end-4w:end=0\:00" Is there a way to force the beginning or end of the step? Does it have something to do with the start time of the rrd itself? Should I be going about this in a different manner? Justin
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