[rrd-users] Trying to do something simple and it ends up being hard :\

[David OBrien]

I created a rrd file using:

if (! -e "$rrd/mysql.rrd")
{
print "creating rrd database for mysql...\n";
RRDs::create "$rrd/mysql.rrd",
"-s 60",
"DS:queries:COUNTER:60:0:12500000",
"DS:datain:DERIVE:60:0:12500000",
"DS:dataout:DERIVE:60:0:12500000",
"RRA:LAST:0.5:1:9999",
"RRA:AVERAGE:0.5:1:576",
"RRA:AVERAGE:0.5:6:672",
"RRA:AVERAGE:0.5:24:732",
"RRA:AVERAGE:0.5:144:1460";
}

I am populating it using this:

for i in `mysql -e 'show status'|grep Innodb_rows_|grep ted|cut -f 2`
do
    sum=`expr $sum + $i`
done
rrdtool update mysql.rrd N:$sum:0:0

root at main [/home/dgobrien/public_html/collector]# ./net.sh
rrdtool update mysql.rrd N:271801:0:0
1081x197
root at main [/home/dgobrien/public_html/collector]# ./net.sh
rrdtool update mysql.rrd N:271807:0:0

the counter is incrementing and the script runs thru cron once a minute
I am graphing using this:

DATE=`date +%Y%m%d`
rrdtool graph mysqlstats_$DATE.png --width=1000 --height=125 \
           -l 0 -X 0 --color CANVAS#000000 --color GRID#888888 --color
SHADEA#FFFFFF --color SHADEB#FFFFFF --color BACK#FFFFFF --color MGRID#BBBBBB
 \
            DEF:mysql=mysql.rrd:queries:AVERAGE \
            AREA:mysql#337722:"Queries\:" \
            GPRINT:mysql:MAX:"  Max\\: %5.1lf %s" \
    GPRINT:mysql:AVERAGE:" Avg\\: %5.1lf %S" \
            GPRINT:mysql:LAST:" Current\\: %5.1lf %S"

but the graph always says "nan" and no values show up
I tried with both DERIVE and COUNTER

http://duelingelectrons.com/collector/

can anyone assist me in figuring this out?
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