[squid-users] Sibling caches and repetetive 407 errors

From: Christoph Haas <email@dont-contact.us>
Date: Wed, 21 May 2003 23:15:10 +0200

Mornin', people...

I have a cluster of two Squid proxy servers running well. In order to
increase the hit ratio I want to connect the caches by establishing a
sibling relation. That's what I added:

cache_peer [other-cache's-IP] sibling 3128 3130

However I strangely get a lot of 407 errors making the user
re-authenticate when I do this. These are the lines that I find in the
log file:

1053517340.108 852 10.25.9.51 TCP_MISS/407 2130 GET
http://www.redhat.com/img/sw_main_enterprise.gif web82371
CD_SIBLING_HIT/[other-cache's-IP] text/html

It looks to me like everytime the one Squid asks the other whether it
has a URL in cache the user must re-enter his credentials. Just removing
the sibling relation instantly makes the Squid behave like normal.
The only cache.log error message that seemed to be related to digests
was...

2003/05/21 19:01:05| temporary disabling (Internal Server Error) digest
from localhost

...but I doubt this is the cause.

What could I have missed?

 Christoph

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Received on Wed May 21 2003 - 15:15:20 MDT

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