[rrd-users] How to find first valid dp in rrd - repost - where are the experts?
rrd-users at ficos.de
Tue Nov 18 15:17:26 CET 2008
since there was no answer to my last post, I'm trying again.
Where are the experts?
Is there a good way to find the first valid (not UNKN) datapoint in rrd?
rrdtools first doesn't quite do what I expected.
Instead it gives you "rrdtools last" - rrasize.
RRA:AVERAGE:0.5:1:259200 # 3 days
RRA:AVERAGE:0.5:10:259200 # 30 days
RRA:AVERAGE:0.5:60:259200 # 180 days
RRA:AVERAGE:0.5:600:259200 # 1800 days
If I have created a rrd like this and I started to use it a week ago,
I'm looking for a way to find out when that fist value was entered
into the rrd. Instead of telling me the first 'valid' DP in that rrd,
"rrdtools first file.rrd" tells me 'now - 3 days' and
"rrdtools first file.rrd --rraindex 3" tells me 'now - 1800 days'
What I would like to get is that point in time a week ago when I
entered the first value.
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