[squid-users] R: [squid-users] Connection to webmail sites problem using more than one parent proxy

Hi Amos!
Thank you for your replying.

I have changed squid version ( now is running the 2.7 stable5) and I have
modified the parents peers in that way:

 parentproxy1.mydomain.it parent 3128 3130 sourcehash
 parentproxy2.mydomain.it parent 3128 3130 sourcehash
 parentproxy3.mydomain.it parent 3128 3130 sourcehash

But I still have the same problem.

I tried also in this way, but it didn't work as well :

parentproxy1.mydomain.it parent 3128 3130 roundrobin sourcehash
parentproxy2.mydomain.it parent 3128 3130 roundrobin sourcehash
parentproxy3.mydomain.it parent 3128 3130 roundrobin sourcehash

I'm wondering whether the configuration is correct, or not.
Do you have some better tips about how to configuring it?

Hope to have nice news from you!

Thanks a lot for help!

Sergio

-----Messaggio originale-----
Da: Amos Jeffries [mailto:squid3_at_treenet.co.nz]
Inviato: sabato 1 novembre 2008 4.40
A: Sergio
Cc: squid-users_at_squid-cache.org
Oggetto: Re: [squid-users] Connection to webmail sites problem using more
than one parent proxy

Sergio wrote:
> Hello Everybody,
>
>
> We have this scenario:
>
> We have proxy connected to internet trough 3 parent proxy
>
> [client]
> |
> |
> [proxy]
> |
> |
> +-----------------+---------------+
> | | |
>
> [parentproxy1],[parentproxy2],[parentproxy3]
>
>
>
> We have trouble with some webmail sites ( eg. mail.tiscali.it) that don't
> keep the connection on the session.
> We have this problem when the proxy establishes the connection using all
the
> proxy serves.
> If we use only a proxy server as parent the session is not missed.
>
> This the localproxy configuration for the cache peers:
>
> cache_peer parentproxy1.mydomain.it parent 3128 3130
> cache_peer parentproxy2.mydomain.it parent 3128 3130
> cache_peer parentproxy3.mydomain.it parent 3128 3130
>
> we use squid 2.5 stable7 version for Windows.
> The parent proxies use squid 2.5 stable7 for windows as well and go out
> directly to Internet.
> How can we override this problem?
> Thank you in advance guys!
>
>
> Sergio
>
>
>
> Ps.
>
> We also contacted the Tiscali customer care, but they didn't give us any
> useful information!
>

Forgot to mention in my earlier reply.
If you upgrade to current squid the srchash peering algorithm is
available to ensure that all requests from a given client IP go through
a certain parent. This is hash balanced across all the active parents
and handles parents proxies going up/down without breaking client access.

Amos

-- 
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