[rrd-users] RRD Newbie Help

[Sturgis, Grant]

Greetings all,

I admit I am an RRD newbie, but I have read all the tutorials and manuals and have tried several times to get this right.  I think I need a little nudge in the right direction, and I hope someone here can help.  

My goal is a spam / email graph.  I am getting the numbers everyday of how many emails are blocked by all the different methods we use to block spam, plus the legitimate email.  I have created a simplistic prototype:

rrdtool create mail.rrd -b 1063677780 \
--step 86400 \
DS:tot_mail:ABSOLUTE:129600:U:U \
DS:legit_mail:ABSOLUTE:129600:U:U \
RRA:AVERAGE:0.5:1:30 \
RRA:AVERAGE:0.5:7:52

rrdtool update mail.rrd \
-t tot_mail:legit_mail \
1063793700:2632:1749

rrdtool update mail.rrd \
-t tot_mail:legit_mail \
1063880100:2949:1769

rrdtool update mail.rrd \
-t tot_mail:legit_mail \
1063966500:2365:1525


and then:

rrdtool fetch mail.rrd AVERAGE -s 1063677780

1063670400: nan nan
1063756800: 2.2705314010e-02 1.5087991718e-02
1063843200: 2.9251821030e-02 1.8174033307e-02
1063929600: 3.0259452160e-02 1.8856577932e-02
1064016000: nan nan
1064102400: nan nan
1064188800: nan nan


My question is:

I do not want averages, I want real numbers.  I thought I was going to get real numbers because of the RRA:AVERAGE:0.5:1:30.  What should I be doing differently?  Am I on the right path at all?

Any comments, suggestions, pointers, RTFMs are greatly appreciated.

-G


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