Re: Curious about this...

From: Stephane Bortzmeyer <>
Date: Mon, 18 Nov 96 17:36:43 +0100

On Monday 18 November 96, at 10 h 33, the keyboard of Richard Munro
<> wrote:

> Obviously if an IMS request produces newer material, the old material will
> be replaced on disk with the newer material, which starts up the cycle
> again. But what happens if an IMS request finds that there has been no
> motification? Does the expiry date get modified in the cache or do all
> subsequent client requests go through the IMS process again and again
> until there actually is a modification of the source material?

It seems that Squid 1.1beta19 does not update the "age" of the object
(entry->timestamp, the length of its stay in the cache) when receiving a
"Not modified" so it asks over and over the same object because (use
"debug_options 22,3" to see refreshes in cache.log) "refreshCheck: YES:
factor > pc":

848334708.231 3817 TCP_REFRESH_HIT/200 199 GET - DIRECT/
848334710.026 759 TCP_REFRESH_HIT/200 199 GET - DIRECT/
848334714.720 3661 TCP_REFRESH_HIT/200 199 GET - DIRECT/
848334726.955 11210 TCP_REFRESH_HIT/200 199 GET - DIRECT/

Isn't it a bug?
Received on Mon Nov 18 1996 - 08:37:18 MST

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