Ticket #58 (closed defect: wontfix)

Opened 3 years ago

Last modified 14 months ago

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

combined.JPG Download (38.8 KB) - added by human 3 years ago.
ticket.doc Download (27.0 KB) - added by human 3 years ago.
config

Change History

Changed 3 years ago by human

Changed 3 years ago by human

config

comment:1 Changed 14 months ago by oetiker

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

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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