[mrtg] Re: Weird MRTG Problem.

[Koelstra, J. (Jan)]

Roddy,

Why doing all this calculation in a command when MRTG can do the same
directly? 
Target[...]
.1.3.6.1.4.1.9.9.178.1.1.2.8.0&.1.3.6.1.4.1.9.9.178.1.1.2.8.0:<community
>@a.b.c.d

HTH,

Jan.

-----Original Message-----
From: Roddy Strachan [mailto:roddy at netspace.net.au] 
Sent: Friday, November 22, 2002 12:16 PM
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] Weird MRTG Problem.



Hi,

I am hoping someone out there can help me, the scenario is as follows.

I am monitoring the CPU load of a Cisco content engine (using the
specific Cisco MIBS).

I can get the actual value of CPU load no problem doing a snmpget from
the command line ie:

snmpget x.x.x.x community .1.3.6.1.4.1.9.9.178.1.1.2.8.0

Gives the output of

enterprises.9.9.178.1.1.2.8.0 = Gauge32: 23

I then tidy it up a bit and change it to :

snmpget x.x.x.x community .1.3.6.1.4.1.9.9.178.1.1.2.8.0 | cut -d : -f 2
which makes it  23

Now the weird bit starts, when I plug that actual command into my cfg
file and run it via cron it doesnt graph properly, the logfile looks
like :

1037963641 -1 -1
1037963641 1 1 1 1
1037963581 1 1 1 1

And so on, therefor creating a graph of 1 all the way along
BUT

If i run the command manually ie :

/usr/local/mrtg-2/bin/mrtg /usr/local/mrtg-2/etc/x.x.x.x.cfg

And then check the logfile it puts the correct value in there ie :

1037963770 3 -1
1037963770 3 1 3 1

And graphs accordingly, for some reason when it is ran automatically
from cron it fails to get the right value.

I hope i've explained myself properly here.

Any help would be greatly appreciated as to why its not working the way
it should.

Thanks


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