Re: SWAPOUT of 0 length objects?

From: Duane Wessels <wessels@dont-contact.us>
Date: Sun, 31 Dec 2000 18:09:33 -0700 (MST)

On Mon, 18 Dec 2000, Henrik Nordstrom wrote:

> Starting to build up some simulations for my ideas in filesystems, and
> as a base for this I thougt I should get some interesting logs from some
> "live" systems, so I went to ftp.ircache.net and fetched
> access.log+store.log for the "rtp" cache.
>
> All good so far, but there are one class of store.log entries I am not
> sure what to make of:
> 976616781.768 SWAPOUT 05 00008099 4817E010494CB7AF4B95252356FA37EC 200
> 976616646 976616646 1 text/html -1/0 GET
> http://www.runet.com/russian/economics/index.html
>
> The thing I am unsure about is the size field.. -1/0.. is this really
> zero sized objects with no content-lenght, or is it something else going
> on there?

Looks like it really is a swapout of zero-sized reply.

When I request that URL now I get a non-zero reply. But if Squid
thinks the TCP connection was closed normally, then it thinks
the reply is valid. Since there is no content-length, Squid doesn't
know any better. If Squid gets a read error (connection reset) then
it probably won't get swapped out.
Received on Sun Dec 31 2000 - 18:09:35 MST

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