[rrd-users] Wrong walues

[Yoann Courbet]

Hello,

We use RRDTool to count the number of TCP sessions open on a Alteon ACE
Director 3.
The type of the mib OID is Counter32. We pool the value every 5 minutes.

For example if we obtain 1000 at 14h00 and 1005 at 14h05, the value put
in the RRDtool DB is not 5 
but 0.05 (5.xxxxxxe-01).

Any help would be greatly appreciated.

---------------------------
Here is a rrdtool fetch of our DB (example):

/usr/local/rrdtool-1.0.33/bin/rrdtool fetch chuquet-session.rrd AVERAGE
maxsessjacquardcurrentsessjacquard
...
1017308400: 3.9000000000e+02 3.0470686600e-01
1017308700: 3.9000000000e+02 2.6373204147e-01
...

The correct information should be : 

maxsessjacquardcurrentsessjacquard
...
1017308400: 3.9000000000e+02 3.0470686600e-00
1017308700: 3.9000000000e+02 2.6373204147e-00
...
--------------------------
--------------------------
Here is how we create the DB:

function createdb
{
               $RRDTOOLPATH/rrdtool create switch-session.rrd \
               DS:maxsessjacquard:GAUGE:600:0:U \
               DS:curentsessjacquard:COUNTER:600:0:U \
               RRA:AVERAGE:0.5:1:600      \
               RRA:AVERAGE:0.5:6:700      \
               RRA:AVERAGE:0.5:24:775     \
               RRA:AVERAGE:0.5:288:797    \
               RRA:MAX:0.5:1:600          \
               RRA:MAX:0.5:6:700          \
               RRA:MAX:0.5:24:775         \
               RRA:MAX:0.5:288:797
}
---------------------------
---------------------------
Here is the script we use to obtain the value with snmpget

#!/bin/bash

SNMPPATH=/usr/bin

SNMPSESSIONMAXJACQUARD="enterprises.1872.2.1.8.2.5.1.5.1"
SNMPSESSIONTOTALJACQUARD="enterprises.1872.2.1.8.2.5.1.3.1"

case $3 in
        alldata)
                $SNMPPATH/snmpget $1 $2 $SNMPSESSIONMAXJACQUARD
$SNMPSESSIONTOTALJACQUARD |cut -d= -f2|sed s/" "//g
        ;;
esac
----------------------------
----------------------------
After we update the DB with  :
rrdtool update switch-session.rrd N:$maxjacquard:$totaljacquard
----------------------------

Regards.
-- 
Yoann COURBET
Administrateur Reseau
130, rue du Bourg-Bele - BP 21099 - 72001 LE MANS Cedex 1 - FRANCE

Tel : (33) 02 43 14 12 76 - Fax : (33) 02 43 14 12 77
http://www.euroconnect.fr

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