Re: [squid-users] HA/RHCS & Squid Advice

On 20/10/10 23:34, Nick Cairncross wrote:
> Hi List,
>
> I have two Squid servers in different subnets on different
> geographical sites (LES link between the two) serving our users. I
> would like to look into high availability/cluster services so that I
> can move IP/Hostname around and take one out of commission – quite a
> simple setup. I'd like some advice on it if possible. If all I want
> to be able to do is move a hostname and IP to the other node thereby
> taking one physical box out of commission to work on what does the
> list recommend? I need to enable my colleagues (no knowledge of
> Linux) to do this easily.
>
> I'm thinking Red Hat Cluster Services but it seems a bit heavy for
> this.. I'm just starting to read up on the High Availability project
> but thought I'd get the question in..
>
> Thanks
>
> Nick

So whats wrong with updating the DNS then waiting for the old ones
traffic to stop before turning it off?

You can seed the new proxy by setting it with the original as parent.
Then spending a while leading up to the switch replicating a fetch of
all the old proxy access.log GET URLs. With the special header
"Cache-Control: only-if-cached" sent on the seeding requests.

Amos

-- 
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   Current Stable Squid 2.7.STABLE9 or 3.1.8
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