Re: question about load balance and forwardfor

From: Cherife Li <>
Date: Wed, 02 Jul 2008 15:40:21 +0800

On 07/02/08 12:51, Willy Tarreau wrote:
> you shouldn't rely on user-agent hashing for load balancing, because user-agent
> does not follow a good distribution.

OK. Then, how about source IP (or X-Forwarded-For) plus user-agent hashing?
> but it requires that we are able to specify which occurrence of the header
> we want to hash (and we need that for the ACLs too BTW). What I want to do
> is the following :
> - balance hdr(X-Forwarded-For,-1) => hash last occurrence
> - balance hdr(X-Forwarded-For,-2) => hash previous last occurrence
> - balance hdr(X-Forwarded-For,1) => hash first occurrence
> Same for ACLs.

Would you please enable multi-headers balance? Something like:

I wish you and other guys would consider this feature request is necessary. We need this feature in our situation.

Thanks again, Willy.

Received on 2008/07/02 09:40

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