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Re: LVS-DR and https

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: LVS-DR and https
From: Nicolas Niclausse <nicolas.niclausse@xxxxxxxxxx>
Date: Wed, 30 Jul 2003 11:31:04 +0200
>>>>> "horms" == horms  <horms@xxxxxxxxxxxx> écrivait:

 horms> The other reason that persistance is a good idea relates to
 horms> session resumption. This allows subsequent connections to be set
 horms> up much faster if an end-user connects to the same real
 horms> server. Some Layer 4 Switching implementations allow persistance
 horms> bassed on session Id for this reason. LVS doesn't do this. And
 horms> it is a bit hard to put into the current code (when I say a bit,
 horms> I mean more or less impossible).

Does ktcpvs can (or will) do this ?

There is an alternative to persistance: you can share the session IDs on
the real servers side with distcache http://distcache.sourceforge.net/

(I haven't try it myself)

 horms> Note that using different real-servers will not cause
 horms> connections that try to use Session IDs to fail. They will just
 horms> use the slower version of the handshake.

Indeed, it will be MUCH slower. I've made a few benchmarks, and https
with renegociation is ~20 times slower.

-- 
Nicolas NICLAUSSE                       IDEALX S.A.S.
Tél:01 44 42 00 00                      http://IDEALX.com/
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