Hey guys,
This is how I created my rrd file.
rrdtool create ping_on_deb.rrd -s 60
DS:minrtt:GAUGE:600:0:U
DS:maxrtt:GAUGE:600:0:U
DS:avgrtt:GAUGE:600:0:U
RRA:AVERAGE:0.5:1:483840
RRA:MIN:0.5:1440:1
RRA:MAX:0.5:1440:1
RRA:MIN:0.5:10080:1
RRA:MAX:0.5:10080:1
RRA:MIN:0.5:40320:1
RRA:MAX:0.5:40320:1
RRA:MIN:0.5:483840:1
RRA:MAX:0.5:483840:1
I am just wondering why on my 1 year graph, values are becoming smaller.
Here is my script that creates the drawing.
#!/bin/sh
HOSTNAME=$1
PUSHEDTIME=$2
SUBJECT=$3
RRDB=/usr/local/nagios/rrd/ping_on_$1.rrd
NOW=`date +%s`
ONE_HOUR_AGO=$(($NOW-3600))
ONE_DAY_AGO=$(($NOW-86400))
ONE_WEEK_AGO=$(($NOW-604800))
ONE_MONTH_AGO=$(($NOW-2419200))
ONE_YEAR_AGO=$(($NOW-29030400))
TIMESTAMP="Generated on `date`"
function draw_graphic()
{
rrdtool graph $1 -s $2 -e $3 -a PNG \
-t "$SUBJECT, $4" -w 520 -h 160 \
-l 0 -O 255 -r --units-exponent 0 \
COMMENT:"Response Time min/max/avg (ms)\n" \
COMMENT:"
MIN MAX AVG LAST\n" \
DEF:load5var=$RRDB:avgrtt:AVERAGE AREA:load5var#ffc000:"Average RTT"
GPRINT:load5var:AVERAGE:"
%3.0lf" GPRINT:load5var:MIN:"%6.0lf" GPRINT:load5var:MAX:"%6.0lf"
GPRINT:load5var:LAST:"%6.0lf" COMMENT:"\n" \
DEF:load15var1=$RRDB:minrtt:AVERAGE LINE2:load15var1#0000FF:"Minimum
RTT" GPRINT:load15var1:AVERAGE:"
%3.0lf" GPRINT:load15var1:MIN:"%6.0lf" GPRINT:load15var1:MAX:"%6.0lf"
GPRINT:load15var1:LAST:"%6.0lf" COMMENT:"\n" \
DEF:load1var=$RRDB:maxrtt:AVERAGE LINE2:load1var#FF0000:"Maximum RTT"
GPRINT:load1var:AVERAGE:"
%3.0lf" GPRINT:load1var:MIN:"%6.0lf" GPRINT:load1var:MAX:"%6.0lf"
GPRINT:load1var:LAST:"%6.0lf" COMMENT:"\n" \
COMMENT:"\n" \
COMMENT:"$5\n"
}
draw_graphic
'/usr/local/nagios/share/images/'$HOSTNAME'_ping_last_hour'$PUSHEDTIME'.png'
$ONE_HOUR_AGO $NOW "$HOSTNAME (last 1hr)" "$TIMESTAMP"
draw_graphic
'/usr/local/nagios/share/images/'$HOSTNAME'_ping_last_day'$PUSHEDTIME'.png'
$ONE_DAY_AGO $NOW "$HOSTNAME (last 24hrs)" "$TIMESTAMP"
draw_graphic
'/usr/local/nagios/share/images/'$HOSTNAME'_ping_last_week'$PUSHEDTIME'.png'
$ONE_WEEK_AGO $NOW "$HOSTNAME (last week)" "$TIMESTAMP"
draw_graphic
'/usr/local/nagios/share/images/'$HOSTNAME'_ping_last_month'$PUSHEDTIME'.png
' $ONE_MONTH_AGO $NOW "$HOSTNAME (last month)" "$TIMESTAMP"
draw_graphic
'/usr/local/nagios/share/images/'$HOSTNAME'_ping_last_year'$PUSHEDTIME'.png'
$ONE_YEAR_AGO $NOW "$HOSTNAME (last year)" "$TIMESTAMP"
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