RE: [squid-users] Peer cache behavior with expired objects

From: <>
Date: Wed, 5 May 2010 10:41:23 -0500

>I'm experimenting with 2 Squid 3.1.3 instances in reverse proxy mode.
>They are configured to be peers of each other using ICP. I'm not using
>digests. When a cached resource has not yet expired, each instance
>successfully contact the other to retrieve the resource. However, when
>the resource is expired, no attempt is made to contact the peer. I'm
>trying to determine if that behavior can be changed.

>My question is, is there a way to configure Squid so that it will
>contact its peers when asked for an expired resource? I'm interested
>doing this to reduce the number of requests that make their way to the
>backend servers. If a peer has a fresh copy, I'd like that one to be
>used instead of sending the request to the backend.

From the lack of responses, I'm guessing this isn't a commonly asked
question. Would anyone be able direct me to a location in the Squid
source code where I could try to find this myself? Or perhaps if there
is documentation on this that I missed I'd appreciate that as well.


Received on Wed May 05 2010 - 15:41:30 MDT

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