> I don't remember hearing what the "quick_abort" settings were
    > on the caches that saw the spikes.
    
quick_abort was 10 50 50 .  Our squid.conf is from 2.0 and doesn't
mention range_offset_limit, so when we ran 2.1, range_offset_limit must
have been the default.

A few people mentioned bandwidth spikes in conjuction with ICP peers
or cache digests, but our caches weren't configured to use any peers
at the time of the spikes.

Someone mentioned a Network Associates site (term-xxx.nai.com).  
We had noticed problems with that site before and had disabled caching of
HTTP traffic to that network (via transparent redirection).

Several people have suggested delay_pools. I'll take a look at that.


gid

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