Re: IMS requests seemingly flush the cache of old small gifs

From: Henrik Nordstrom <>
Date: Tue, 12 Jan 1999 16:51:09 +0100

Benno Blumenthal wrote:

> 916112439.063 187 TCP_REFRESH_HIT/200 339 GET
> -
> DIRECT/ image/gif

TCP_REFRESH_HIT is when Squid validated the cached object with the
origin server. This happens when
1. Object has expired
2. refresh_pattern says it has to
3. The user pushes reload in their browser.

> This is part of what was confusing me -- the REFRESH hit is marked
> DIRECT, while I was expecting it to be marked NONE.

TCP_REFRESH_HIT is when the origin server was contacted to verify that
the cache is up to date. Pure cache hits are marked as TCP_HIT.

Henrik Nordstrom
Spare time Squid hacker
Received on Tue Jan 12 1999 - 09:18:24 MST

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