RE: "Squid" failed to cache from FTP sites that does not support RESUME

From: Idan Feigenbaum <[email protected]>
Date: Wed, 25 Aug 1999 17:12:54 +0200

I was trying to download using a download program that HAD resume ability
from several sites with
and without the proxy.

When downloading (without proxy) from site that supported RESUME, the
program showed me that it did support the resume, and when I aborted the
download, and then try to resume it - it was all fine - the download started
immediately and completed successfully.
When download (without proxy) from site the didn't support RESUME, the
program showed me that resume is not available, and of course, when aborting
and trying to RESUME the download, it started from the beginning.
NOW, when I was downloading (WITH SQUID) from site that supported RESUME,
the program showed me that it supports the resume, and when I aborted the
download, and tried to resume it - it was all fine - the download started
immediately and completed successfully.

BUT, when I was downloading (WITH SQUID) from site the didn't support
RESUME, the program STILL showed me that RESUME is SUPPORTED, when I aborted
the download, and tried to RESUME it - it took a lot of time until squid
reached the point that I requested to resume from. That's logical for me,
but even if I download the whole file at once, and then try to download it
again, it wont give it to me from the cache - from some reason it releases
this file from the cache.

Am I clear enough ?

-----Original Message-----
From: Dave J Woolley [mailto:DJW@bts.co.uk]
Sent: Wednesday, August 25, 1999 2:25 PM
To: 'squid-users@ircache.net'
Subject: RE: "Squid" failed to cache from FTP sites that does not
support RESUME

> From: Idan Feigenbaum [SMTP:idanfei@ibm.net]
>
> Could someone tell if if its possible to configure the "Squid" to
> cache also files from FTP sites, that does not support the
> REST (resume) feature ?
>
        What is your evidence that REST makes a difference?

        I've not investigated cacheing of FTP in squid, but
        cacheablity is much more likely to depend on the format
        of directory listings than on support for restarts.

        Incidentally, I don't know any sites that support the
        REST feature according to the specification - all make
        assumptions about Unix like file systems which the FTP
        RFC doesn't permit and don't support the required
        checkpointing of the data stream.
Received on Wed Aug 25 1999 - 09:02:28 MDT

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