[rrd-users] Controlling time interval on graphing
robstar at gmail.com
Fri May 22 22:35:08 CEST 2009
Not that anybody reads this forum.. but it looks like it wasn't rendering a
graph because some of the data is NaN... I have to figure out how to catch
the rendering error...
> I have a feeling it's because I have 2 AVERAGE RRAs.... is there a way to
> distinguish them?
> I think the graph is picking the first one, which only holds the last
> 24hrs... how can I tell it to pick the HOURLY AVERAGE ?
> robstar wrote:
>> I recently started using RRD and it's awesome.... but I can't get it to
>> plot more than the last 24hrs of data...
>> here is my setup:
>> rrdtool create temperature.rrd --step 60 \
>> DS:temp:GAUGE:300:-273:5000 \
>> RRA:AVERAGE:0.5:1:1440 \
>> RRA:MIN:0.5:60:2400 \
>> RRA:MAX:0.5:60:2400 \
>> doesn't this store more than 1 day of data for me?
>> If I leave out the --start/end I get the last 24hrs... and here's what I
>> use to generate the graph for today:
>> rrdtool graph temp.png
>> DEF:t=/var/www/eheat/rrd/temperature.rrd:temp:AVERAGE -w 600 -h 300
>> --start 1242878400 --end 1242964799
>> how can I get the last week? last month? any interval I want? anything
>> but the string above generates a blank graph!!
>> Thanks for your help.
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