[rrd-users] rrdtool on fedora

[Alex van den Bogaerdt]

I've seen a question or two about running mrtg and/or rrdtool on Fedora.

In stead of waiting, I just tried.  So far so good.

Fresh install of Fedora workstation (default choices, no patches)
1) download rrdtool-1.0.45.tar.gz into /usr/src
2) tar xzf rrdtool-1.0.45.tar.gz
3) cd rrdtool-1.0.45
4) sh configure
5) make
5b) (many warnings ignored; in fact I didn't even look)
6) make install
7) created quick'n'dirty collector "/tmp/rrdcpu"
      #!/bin/bash

      < /proc/stat awk '
         /^btime / { B=$2 }
         /^cpu /   { U=$2;N=$3;S=$4;I=$5 }
         END { printf "update /tmp/cpu.rrd %i:%i:%i:%i:%i\n",
                              (U+N+S+I)/100+B,U,N,S,I; }'
8) generated small database
      /usr/local/rrdtool-1.0.45/bin/rrdtool create /tmp/cpu.rrd \
         --step 60 \
         DS:u:COUNTER:130:0:13000 \
         DS:n:COUNTER:130:0:13000 \
         DS:s:COUNTER:130:0:13000 \
         DS:i:COUNTER:130:0:13000 \
         RRA:AVERAGE:0.5:1:60 \
         RRA:AVERAGE:0.5:60:400 \
         RRA:AVERAGE:0.5:1440:400
9) created cron job
      crontab -e
      * * * * * /tmp/rrdcpu | /usr/local/rrdtool-1.0.45/bin/rrdtool -
10) waited a couple of minutes, looking at the mail from cron.  I did
    NOT ignore this mail as it told me everything was doing well.
    When you _know_ it works OK, edit crontab again and add
    (without the double quotes but including the single quotes):
    " | grep -v '^OK'" to the command.  This will filter the OK message.
11) build MRTG (separate README) to kill some time.
12) build myself a graph
      /usr/local/rrdtool-1.0.45/bin/rrdtool graph \
         /tmp/cpu.png --start end-60min \
         -f "<IMG src=%s width=%d height=%d>" \
         -v "cpu %" \
         DEF:user=/tmp/cpu.rrd:u:AVERAGE \
         DEF:nice=/tmp/cpu.rrd:n:AVERAGE \
         DEF:syst=/tmp/cpu.rrd:s:AVERAGE \
         DEF:idle=/tmp/cpu.rrd:i:AVERAGE \
         AREA:user#0000FF:user \
         STACK:syst#FF0000:system \
         STACK:nice#00CC00:nice \
         STACK:idle#DFDFDF:idle | \
      grep IMG > /tmp/index.html
13) view file using mozilla.  Apache is not installed so
    use "file:///tmp/index.html"

HTH
Alex
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