Traffic accounting

[conrad]

Has anyone used one of these for some kind of traffic accounting?

- http://wiki.openvz.org/Traffic_accounting_with_iptables
- http://wiki.openvz.org/Traffic_accounting_through_proc

if you have, i would like to hear your experiences.

 

[mangoo]

Has anyone used one of these for some kind of traffic accounting?

- http://wiki.openvz.org/Traffic_accounting_with_iptables
- http://wiki.openvz.org/Traffic_accounting_through_proc

if you have, i would like to hear your experiences.

I wonder - what is the easiest way to determine which vmtab* interface on host is attached to which guest?

 

[dietmar]

vmtab* contains the VM ID

 

[mangoo]

vmtab* contains the VM ID

Ah, cool.
So that's the easiest way to do basic traffic accounting per guest.

Add a simple daemon which reads the stats every 5 minutes or so, saves it in some format to be parsed later and you have very nice traffic accounting (per hour, day, month etc.).

Is there an easy way to save the counters on guest shutdown/exit/crash?

-------

On 64 bit kernels, when are the ifconfig counters resetted ("overflow", i.e. start from 0)? For 32 bit kernels it's 4 GB I think.
For 64 bits, that would be, 16.8 million terabytes? It's a lot and I don't think it can ever overflow. I'm not sure about 64-bit processors which are limited to 40- or 48-bit address space though.

 

[dietmar]

you can use rrd-tools to save/display the data

 

[conrad]

I think i'm going to try this solution:
http://wiki.openvz.org/Traffic_accounting_through_proc

and i am already using a mrtg php script to display the hourly, daily, monthly trafiic of my master switch. So i can use this script tot display
the rrd files the containers as well.

 

[the_bobara]

Hello,
is this script working, because every time I get:
/var/lib/rrd/500.rrd does not exist, creating.
ERROR: opening '/var/lib/rrd/500.rrd': No such file or directory

the file isnt created, and If I try to replace update with create in the script I get error:
tiger:/var/lib/rrd# /usr/bin/rrdtool create $RRDFILE N:1370495775:2147483647
ERROR: can't parse argument 'N:1370495775:2147483647'


any suggestions?

I`m using http://wiki.openvz.org/Traffic_accounting_through_proc

 

[conrad]

You have to add a creation command where it says:

# Place your preferred RRD Creation command here

i got errors about wrong format or something, but haven't had the
time to figure out the right command.

 

[the_bobara]

I also didnt find working command. Every parameter for rrdtool create is wrong.

None of the openvz`s wiki articles about bandwidth, monitoring and such is completed and working