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Diagnosing excesive network usage
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gbobr
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PostPosted: Wed Oct 03, 2012 2:20 am    Post subject: Diagnosing excesive network usage Reply with quote

Hi!

I am running a network server in a datacenter with many gameservers on it.
One of that gameservers is using a lot of bandwidth... Or maybe all of them... I don't know how to find out.

I tried with iftop, but they are all using the same nic, so it's useless.
Also tried a little program (don't remember it's name right now) that measures how much bandwidth is using each process... But it only counts tcp trafic, and i think that most of my traffic is UDP.

Can anyone give me a clue about what tool i can use to see what process is eating my bandwidth?

Thanks!
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khayyam
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PostPosted: Wed Oct 03, 2012 5:05 am    Post subject: Re: Diagnosing excesive network usage Reply with quote

gbobr wrote:
Can anyone give me a clue about what tool i can use to see what process is eating my bandwidth?

qbobr ... you probably looking for net-analyzer/nethogs

best ... khay
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gbobr
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PostPosted: Wed Oct 03, 2012 2:01 pm    Post subject: Reply with quote

Thanks for your answer, but nethogs takes in count only TCP traffic.
I need to see udp traffic too.
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khayyam
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PostPosted: Wed Oct 03, 2012 5:42 pm    Post subject: Reply with quote

gbobr wrote:
Thanks for your answer, but nethogs takes in count only TCP traffic. I need to see udp traffic too.

gbobr ... I see, I thought that nethogs was both TCP and UDP, but I see UDP is on the 'todo' list.

The only other apps I can suggest net-analyzer/iptraf-ng (which does provide information on UDP but doesn't report which process) and net-analyzer/nettop which I have no idea about other than it uses a web interface.

best ... khay
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