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List:       haproxy
Subject:    Re: UDP loadbalancing
From:       Sander Klein <roedie () roedie ! nl>
Date:       2013-12-31 16:22:57
Message-ID: 2f5acdc3376b4c309b3342ae63b7c0a6 () roedie ! nl
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On , Willy Tarreau wrote:
> On Tue, Dec 31, 2013 at 12:44:26AM +0100, Lukas Tribus wrote:
>> Hi,
>> 
>> 
>> > Hi,
>> >
>> > I know haproxy doesn't do UDP loadbalancing, but I figured someone here
>> > might now A nice tool which can doe this for me. (If haproxy could do it
>> > it would have been nice though... ;-) )
>> >
>> > I've looked at pen but it doesn't seem to do IPV6.
>> >
>> > LVS can do the trick but I need to reconfigure a bit to much for my
>> > taste.
>> >
>> > So, are there any other UDP loadbalancers out there?
>> 
>> 
>> I suspect the aren't many, because load-balancing UDP via classic 
>> userspace
>> software is not very popular.
>> 
>> What application/service/protocol are you trying to load balance?
>> 
>> Any way can do this via ECMP?
> 
> In general I see LVS deployed for this. The reason is simple : 
> UDP-based
> services are generally not proxy-compatible because some IP addresses 
> are
> implied or transported in the protocol. Thus working in full 
> transparent
> mode is often the only way to go, and with LVS you can do that in DSR 
> mode.
> In fact, DNS might be one of the rare exceptions!
> 

I actually do want to balance DNS. Well, actually I want to make it high 
available and since I already have 2 haproxy loadbalancer running I 
figured it would be easy enough to (mis)use them for that.

Greets,

Sander

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