Hello,
In attempting to show improvements in Session Caching I have done the
following:
# Against a single web server:
Openssl s_client -connect web-tst-1:443 -state -reconnect > /tmp/mylog.txt 2>&1
Then I would `grep -i reuse /tmp/mylog.txt` and it shows that the session was
reused.
# Against the load balancer which is LVS (linux virtual server w/ TUN method)
Openssl s_client -connect lb-web-tst:443 -state -reconnect > /tmp/mylog.txt
2>&1
Then I would `grep -i reuse /tmp/mylog.txt` and it shows that the session was
never reused and a new one was created everytime.
I then created a more detailed test using openssl s_client and dumping the
session using `-sess_out` and then tried to make follow up calls using
`-sess_in` and providing the session ID.
Again if I hit a single server the ID is reused but if I go through the load
balancer and the request hit difference servers that session is not reused.
I tried downing a web server behind the load balancer so only 1 server was up
and the session was reused.
So I guess I have two questions:
1. Is the manner in which I am testing SSLSessionCache correct?
2. My understanding is that the Session cache is shared amongst all the web
servers so the SessionID would be reused, if that correct?
Michael
-----Original Message-----
From: Nick Kew [mailto:[email protected]]
Sent: December 14, 2010 11:59 AM
To: [email protected]
Subject: Re: [us...@httpd] Apache and distcache help
On 14 Dec 2010, at 16:10, Michael Gale wrote:
> Hello,
>
> Does apache still support distcache?
Yes. From Apache 2.3 there's general support and various modules use it.
> I am running the following i386 packages:
> httpd-2.2.3-11.el5_2.centos.4
> distcache-1.4.5-14.1
Can't speak for centos packages, but 2.2.3 is a very old apache version.
> Using `openssl s_client -connect host:port -state -reconnect` shows that SSL
> Session caching is working when I hit the web servers directly, I tested each
> one individually. However when I hit the load balancer (linux virtual server)
> and the requests are spread across the web servers the session cache appears
> to be not working.
Not working? What is the difference between what you expect and what you see?
--
Nick Kew
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