Opened 14 years ago

Closed 12 years ago

#58 closed defect (wontfix)

Error calculating multitarget

Reported by: human Owned by: somebody
Version: 2.x Keywords:
Cc:

Description

I need to show aggregation of multiple interface. but while the single target graph is doing fine multitarget graph sometimes is giving wrong data. Is it something with MaxBytes?[] setting? the error prevails even after increasing MaxBytes?[] range.

I have attached sample config file and .jpg file.

Attachments (2)

combined.JPG​ (38.8 KB) - added by human 14 years ago.
ticket.doc​ (27.0 KB) - added by human 14 years ago.
config

Download all attachments as: .zip

Change History (3)

Changed 14 years ago by human

Changed 14 years ago by human

config

comment:1 Changed 12 years ago by oetiker

  • Resolution set to wontfix
  • Status changed from new to closed

The 'problem' is that in this mode, the counter values get added up prior to being written to the database. With fast interfaces there are bound to be integer overflows causing the effects you see in the chart.

As you are already working with rrdtool I would suggest to use the STACK function to produce overview charts instead of combined targets in mrtg.

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