[squid-users] Peer cache behavior with expired objects

From: <Paul.Buchanan_at_thomsonreuters.com>
Date: Mon, 3 May 2010 08:44:07 -0500


I'm experimenting with 2 Squid 3.1.1 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 will
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 in
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.

I wasn't able to find a definitive answer to this question via the
documentation, or searching the list.

Thanks for your time,

Received on Mon May 03 2010 - 13:44:14 MDT

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