[mrtg] Re: Negative log values

[Koelstra, J. (Jan)]

A value of -1 is usualy the result if no data can be collected. 
Does MRTG report any errors? 

Hth,

Jan.

-----Original Message-----
From: Barrett, Tony [mailto:tony.barrett at roke.co.uk] 
Sent: Friday, April 30, 2004 12:54 PM
To: 'mrtg at list.ee.ethz.ch'
Subject: [mrtg] Negative log values


I am using Paul Simmonson's method of using MRTG to monitor Windows
servers (extracting values from perfmon counters). On one network which
I have implemented this, it works really well. We have another network
which I'm going to monitor using the same method, and it's here I'm
having a strange problem.

I'm using exactly the same method to monitor the servers, on an
identical box, using the same version of MRTG with the same
configuration files, but what I'm finding is, is that the graphs (for
any server I try) do not show the correct performance data. Sometimes
they show a continuous green block with a value of 1, but nothing else.
I checked the associated log files, and they are listing negative
values.

Example:

1083314792 -1 -1
1083314792 1 1 1 1
1083314492 1 1 1 1
1083314400 1 1 1 1
1083314100 1 1 1 1
1083313800 1 1 1 1
1083313500 1 1 1 1
1083313200 1 1 1 1
1083312900 1 1 1 1

I have checked the MaxBytes value to make sure all are above the
counters being logged by the servers, and they all look ok. I had
noticed some issues with the Options[_] value on previous occasions. I
am trying to use; growright, pngdate, transparent, noborder.

Anyone got any ideas?

Thanks

Tony

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