[mrtg] Re: Getting values, but empty graphs

[Jerry Heidtke]

You need to add 

Options[5_2]: gauge

to your config. Then mrtg will just record and graph the actual values at each sample time, rather than trying to calculate a rate per second.

If the value returned is 2 at one sample time, and five minutes later is still 2, when mrtg calculates a rate per second [(sample2 - sample1) / 300], it will record and graph 0. By telling mrtg this is a gauge, this calculation is skipped.

Jerry

-----Original Message-----
From: Andy Dills [mailto:andy at xecu.net]
Sent: Wednesday, March 12, 2003 4:47 PM
To: mrtg at list.ee.ethz.ch
Subject: [mrtg] Getting values, but empty graphs 



I apologize in advance if this is something I should have found without
asking. It seems the mailing list isn't searchable, and I couldn't find
this addressed anywhere else.

I've run mrtg for around 6 years or so, and I've run into my first
difficulty.

I'm graphing amp loads on the various legs of our Liebert series 300 UPS.

I obtained the OIDs by digging through their mib and through snmpwalking.
The OIDs are good, and the data obtained from a manual snmpget is
consistent with the data at the top of the log files.

Here's a sample config:

Target[5_2]: .1.3.6.1.4.1.476.1.1.1.1.4.4.1.3.1&.1.3.6.1.4.1.476.1.1.1.1.4.4.1.3.1:com at ip:
MaxBytes[5_2]: 1000
Title[5_2]: Liebert DC UPS1 - Amps on Leg 1
YLegend[5_2]: Amps
ShortLegend[5_2]: A
Legend1[5_2]: Amps
Legend2[5_2]: Amps
Legend3[5_2]: Max Amps
Legend4[5_2]: Max Amps
PageTop[5_2]: <H1>Liebert DC UPS1 - Amps on Leg 1</H1>
 <TABLE>
   <TR><TD>System:</TD>     <TD>Liebert DC UPS1 in Frederick NOC</TD></TR>
   <TR><TD>Description:</TD><TD>Liebert UPS Leg 1 Amp Usage </TD></TR>
 </TABLE>

And here's the top of the log file:

1047508264 2 2
1047508264 0 0 0 0
1047508244 0 0 0 0
(etc)

Yet, when I look at the graphs, I get nothing but 0s regardless.

Any ideas why? Could it have something to do with the fact that regardless
of the number of samples (been running for a few hours now), the only line
with any data is the top of the log? And if so, what could be causing
that?

Thanks,
Andy

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