Re: CARP improvements

On 18/07/11 22:27, Kinkie wrote:
> Hi guys,
> I would like some input on how to best tweak CARP with a very small change:
> as it is now the canonical URL is used to define the hash for next parent.
> It is very efficient - even too much.
>
> I'd like to add a variant to it so that only the host part of the URL
> is used as initial key for the hashing.
> This will decrease the effectiveness of the balancing, but make it
> easier to cope with some websites which do not like it when requests
> travel across different routes.
>
> There are three ways I can think of to address this:
> - change the way CARP works - it's an one-liner
> - new global setting
> - new carp option (e.g. hcarp or host-carp)
>
> What do you think is the best way to implement this?

I think a slightly more flexible way would be a carp-key=XX parameter.
Where one can potentially set (scheme,host,port,path,params) tags. That
would allow a bit more tuning of the mask.

Amos

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