http://httpd.apache.org/docs/2.2/mod/mod_proxy_balancer.html#stickyness_implementation
On Mon, Jan 16, 2012 at 8:31 PM, Vladimir Dvorak <vladimir.dvo...@vdsoft.org
> wrote:
> Hi guys,
>
> after weeks of investigation I have to ask you for help.
>
> Problem Description:
> The problem is that application is randomly (really non deterministically)
> logging users out - they are working with application, but suddenly (not
> all at one time) the user is logged out (because mod_proxy is probably
> start routing the user to second Tomcat server). We are using sticky
> sessions. Loadbalancer is running Apache + mod_proxy. There are two servers
> in the backend running Tomcats.
>
> Schematically:
> client -> https at loadbalancer (Apache, mod_proxy) -> {tomcat server1,
> tomcat server2}
>
> Loadbalancer setting (apache.conf):
> --snip--
> ProxyRequests Off
> ProxyStatus On
> <Proxy *>
> Order deny,allow
> Allow from all
> </Proxy>
> RewriteEngine on
> RewriteRule ^/$ /portal/ [R]
> ProxyErrorOverride On
> ProxyPass /portal/ balancer://productive/portal/
> stickysession=ESPROUTEID nofailover=Off timeout=180
> <Proxy balancer://productive>
> BalancerMember ajp://1.1.1.1:8009 keepalive=On route=1
> loadfactor=50 lbset=0 retry=30
> BalancerMember ajp://1.1.1.2:8009 keepalive=On route=2
> loadfactor=50 lbset=0 retry=30
> </Proxy>
> --snip--
>
> Loadbalancer's Apache compile options:
> $ ./configure --prefix=/var/GridFrame/usr/**local/apache-2.2.21
> --enable-proxy --enable-rewrite --enable-ssl --enable-vhost-alias
> --with-mpm=worker --disable-cgi --disable-cgid --enable-proxy-http
> --enable-proxy-ajp --enable-proxy-connect --enable-proxy-balancer
> --enable-headers
>
>
>
> Do you please have any hints/advice so users are not suddenly routed to
> different Tomcat? Network between loadbalancer and Tomcats is stable.
>
>
> Thank you a lot,
>
> Vladimir
>
>
>
>
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