solved - thold has negative value on interface

Support questions about the Threshold plugin

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zakki
Posts: 10
Joined: Tue Oct 25, 2011 2:09 am

solved - thold has negative value on interface

Post by zakki »

Hi,

I am using told 0.4.7 on cacti 0.8.7h. I created threshold base on High/Low values for an interface. I learned that the value of interface throughput is in Bps. I set it up and then i saw the threshold is breached even though I believe it shouldn't be.
After checking out i found out thold has negative value for the interface throughput. For example if the actual throughput is 320,201 Bps, tholds sees it as -320,201 Bps.

Screenshot attached.

How to fix this?

SOLVED.

The solution is in the same page :oops:. In the Data Manipulation -> Data Type I use RPN Expression with the following value:

ABS(|ds:traffic_in|)

edited from:
-1*|ds:traffic_in|
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thold with negative interface throughput
thold with negative interface throughput
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TheWitness
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Re: solved - thold has negative value on interface

Post by TheWitness »

Did this happen after an interface reset? Please advise. I'm wondering if the Spike detection logic incorporated in the latest thold has a defect.
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zakki
Posts: 10
Joined: Tue Oct 25, 2011 2:09 am

Re: solved - thold has negative value on interface

Post by zakki »

Hi TheWitness,

sorry for long reply. As far as i remember I never reset my interface. Also the counter was not reset.
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