[rrd-users] Graph Never goes over 100M

Chris Fogel chris.fogel at intermetro.net
Fri Oct 24 19:00:08 CEST 2008


Thanks for the help. You were correct!

All I had to do was add '::::2' to the end of my Target[] lines and it 
worked.

Chris

Big Wave Dave wrote:
> On Wed, Oct 1, 2008 at 10:09 AM, Chris Fogel <chris.fogel at intermetro.net> wrote:
>> I have read the lists and googled, but cannot figure out why rrdtool
>> graphs all values over 100M incorrectly.I have checked my .rrd files and
>> the values in the db are the correct values.
>>
>> In this example you will see at 8:30am, the traffic goes to 145M, but is
>> graphing at 45M instead, and does this for all values over 100M, then at
>> ~14:00, the value drops back down under 100M and it graphs normally again.
>>
>> Below is the code used to generate it...
>>
>> Thanks,
>> Chris
>>
>> #!/bin/bash
>> rrdtool graph /var/www/localhost/htdocs/development/pngs/day/$1.png \
>> --rigid \
>> --upper-limit 200000000 \
>> --title "Port Bandwidth" \
>> --interlace --imgformat PNG \
>> --width=700 --height=150 \
>> --start "now -16h" \
>> --watermark "`date`" \
>> -v Bandwidth \
>> DEF:a=/var/www/localhost/htdocs/development/rrds/$2/$1.rrd:ds0:AVERAGE \
>> DEF:b=/var/www/localhost/htdocs/development/rrds/$2/$1.rrd:ds1:AVERAGE \
>> CDEF:alpha=8,a,* \
>> CDEF:beta=8,b,* \
>> CDEF:zeta=a,8,*,b,8,*,GT,a,8,*,b,8,*,IF,PREV,GT,a,8,*,b,8,*,GT,a,8,*,b,8,*,IF,PREV,IF
>> \
>> COMMENT:"\t    avg.    max    last       \n" \
>> AREA:zeta#aaaa55:Tot \
>> GPRINT:zeta:AVERAGE:" %4.2lf %s" \
>> GPRINT:zeta:MAX:"%4.2lf %s" \
>> GPRINT:zeta:LAST:"%4.2lf %s\n" \
>> LINE1:beta#ff0000:Out \
>> GPRINT:beta:AVERAGE:" %4.2lf %s" \
>> GPRINT:beta:MAX:"%4.2lf %s" \
>> GPRINT:beta:LAST:"%4.2lf %s\n" \
>> LINE1:alpha#0000ff:In. \
>> GPRINT:alpha:AVERAGE:" %4.2lf %s" \
>> GPRINT:alpha:MAX:"%4.2lf %s" \
>> GPRINT:alpha:LAST:"%4.2lf %s\n"
>>
>> --
>> Chris Fogel, InterMetro Communications, Inc.
>> 805.433.8000/o, 805.433.0049/d, 805.582.1006/f
>> chris.fogel at intermetro.net, http://www.InterMetro.Net
>>
>> _______________________________________________
>> rrd-users mailing list
>> rrd-users at lists.oetiker.ch
>> https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
>>
>>
> 
> I have seen this when graphing a 32-bit SNMP value that "wraps" when
> it exceeds a 32-bit size.  I ended up having to change the SNMP
> queries to use a 64-bit counter.
> 
> Dave
> 

-- 
Chris Fogel, InterMetro Communications, Inc.
805.433.8000/o, 805.433.0049/d, 805.582.1006/f
chris.fogel at intermetro.net, http://www.InterMetro.Net



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