SQUID Caching Problem
ed at hp.uab.edu
ed at hp.uab.edu
Wed Aug 1 22:53:19 UTC 2007
On Wed, 1 Aug 2007, Charles Curley wrote:
> On Wed, Aug 01, 2007 at 04:12:41PM -0600, Charles Curley wrote:
>> I have pretty much a plain vanilla SQUID setup on F7. It refuses to
>> update its cache.
>>
>> I have just updated several pages on my home page. Browsers that do
>> not use SQUID get the new pages. Firefox uses SQUID, and gets the old
>> pages. If I set Firefox to bypass SQUID and refresh, I get the new
>> material. If I then set Firefox to use SQUID and refresh, I then get
>> the old page.
>>
>> Differences from the default (squid.conf.rpmnew) are:
>>
>> dns_defnames on
>> visible_hostname charlesc
>>
>> An ACL definition and an allow statement for that, which have worked
>> for several years.
>>
>> Commenting out the first two and restarting SQUID makes no difference
>> in this problem.
>>
>> [root at charlesc etc]# pre squid
>> squid-2.6.STABLE13-1.fc7
>
> Now I wonder if it is just SQUID or some subtle combination of SQUID
> and that version of Firefox. If I use firefox-2.0.0.3.tar.gz on FC6, I
> don't see the problem. Similarly with Konqueror on F7,
> kdebase-3.5.7-0.1.fc7.
>
I suspect that Squid is working properly, as programmed, since I have used
Squid for many years and experienced the same behavior.
Have a look at the Squid logs, note the "HIT" entries when your browser
refreshes the page.
Now, refresh the page with a CTRL-refresh. Note that the logs now show
"CLIENT_REFRESH". This is the result of Squid caching, properly, but more
aggressively then your browser.
ed
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