I have an external ACL defined as:
external_acl_type preauth cache=0 children-max=1 concurrency=100 ttl=0
negative_ttl=0 %SRC %>{User-Agent} %URI %METHOD /usr/sbin/squid-preauth
It is well known that external ACLs with ttl=0 and cache=0 leak RAM: I
had this problem and discovered the reason only recently, but Amos knows
it since 2011:
https://www.mail-archive.com/squid-dev@squid-cache.org/msg14809.html
I recently opened a bug about this, that I will update now:
http://bugs.squid-cache.org/show_bug.cgi?id=4088
A workaround that we use and may be applicable in your case is to use
ttl=1 cache=1.
Regards,
Bergonz
--
Ing. Michele Bergonzoni - Laboratori Guglielmo Marconi S.p.a.
Phone:+39-051-6781926 e-mail: berg...@labs.it
alt.advanced.networks.design.configure.operate
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