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Date: Mon, 30 Jul 2007 15:00:47 +0200
From: "Nes Yarug" <nes.yarug@gmail.com>
To: users@httpd.apache.org
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Subject: [users@httpd] Two proxy balancers in two different virtual hosts

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Hi all,

Another proxy balancer question from me, this one has been driving me
nuts...

My setup is as follows:

1 Gateway --> 1 Webserver X ---> 1 Application server
                      1 Webserver Y -->

This setup should handle two web applications served on two different
domains. The application server is running two different instances of JBoss.
The point is to have www.domain-a.com handled by one instance of JBoss and
www.domain-b.com handled by the other instance of JBoss. I have configured
JBoss so that app-a is served on port 8080 and app-b on port 8180. This is
working correctly if I access app-a or app-b from the application server
itself.

The gateway is running Apache 2.2.4 and I have two vhosts defined, a default
one for www.domain-a.com and another one for www.domain-b.com:

<VirtualHost _default_:80>

        ServerName www.domain-a.com:80
        ServerAdmin root@domain-a.com
        DocumentRoot "/var/www/localhost/htdocs"

        <IfModule mpm_peruser_module>
                ServerEnvironment apache apache
        </IfModule>

        ProxyPass / balancer://default/ stickysession=jsessionid
        ProxyPreserveHost On

        <Proxy balancer://default/>
                BalancerMember http://192.168.0.2:80
                BalancerMember http://192.168.0.3:80
        </Proxy><VirtualHost www.novaeres.com:80>

</VirtualHost>

<VirtualHost www.domain-b.com:80>

        ServerName www.domain-b.com:80
        ServerAdmin root@domain-b.com
        DocumentRoot "/var/www/localhost/htdocs"

        ProxyPass / balancer://domain-b/ stickysession=jsessionid
        ProxyPreserveHost On

        <Proxy balancer://domain-b/>
                BalancerMember http://192.168.0.2:80
                BalancerMember http://192.168.0.3:80
        </Proxy>

</VirtualHost>

Then, webserver X and webserver Y have the following configuration:

<VirtualHost _default_:80>
        ServerName www.domain-a.com
        ServerAdmin root@domain-a.com
        DocumentRoot "/var/www/localhost/htdocs"

        ProxyPass / balancer://default/ stickysession=jsessionid
        ProxyPreserveHost On

        <Proxy balancer://default/>
                BalancerMember http://192.168.0.4:8080
        </Proxy>

        <IfModule mpm_peruser_module>
                ServerEnvironment apache apache
        </IfModule>
</VirtualHost>

<VirtualHost www.domain-b.com:80>
        ServerName www.domain-b.com:80
        ServerAdmin root@domain-b.com
        DocumentRoot "/var/www/localhost/htdocs"
        ProxyPass / balancer://domain-b/ stickysession=jsessionid
        ProxyPreserveHost On
        <Proxy balancer://domain-b/>
                BalancerMember http://192.168.0.4:8180
        </Proxy>
        <IfModule mpm_peruser_module>
                ServerEnvironment apache apache
        </IfModule>
</VirtualHost>

Can anyone comment on the above configuration? A few things that indicate
something is configured wrong:

*) When I look at the balancer manager page for BOTH domain-a (
www.domain-a.com/balancer-manager) and domain-b (
www.domain-b.com/balancer-manager) it ALWAYS only lists the domain-b
balancer.
*) Requests for www.domain-a.com AND www.domain-b.com ALWAY end up on the
JBoss instance for domain-a

Any help greatly appreciated.

Yours truly,
Nes

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Hi all,<br><br>Another proxy balancer question from me, this one has been driving me nuts...<br><br>My setup is as follows:<br><br>1 Gateway --&gt; 1 Webserver X ---&gt; 1 Application server<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 1 Webserver Y --&gt;
<br><br>This setup should handle two web applications served on two different domains. The application server is running two different instances of JBoss. The point is to have <a href="http://www.domain-a.com">www.domain-a.com
</a> handled by one instance of JBoss and <a href="http://www.domain-b.com">www.domain-b.com</a> handled by the other instance of JBoss. I have configured JBoss so that app-a is served on port 8080 and app-b on port 8180. This is working correctly if I access app-a or app-b from the application server itself.
<br><br>The gateway is running Apache 2.2.4 and I have two vhosts defined, a default one for <a href="http://www.domain-a.com">www.domain-a.com</a> and another one for <a href="http://www.domain-b.com">www.domain-b.com</a>
:<br><br>&lt;VirtualHost _default_:80&gt;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ServerName <a href="http://www.domain-a.com:80">www.domain-a.com:80</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ServerAdmin <a href="mailto:root@domain-a.com">root@domain-a.com</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DocumentRoot &quot;/var/www/localhost/htdocs&quot;
<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;IfModule mpm_peruser_module&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ServerEnvironment apache apache<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/IfModule&gt;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ProxyPass / balancer://default/ stickysession=jsessionid<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ProxyPreserveHost On
<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;Proxy balancer://default/&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BalancerMember <a href="http://192.168.0.2:80">http://192.168.0.2:80</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BalancerMember <a href="http://192.168.0.3:80">http://192.168.0.3:80
</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/Proxy&gt;&lt;VirtualHost <a href="http://www.novaeres.com:80">www.novaeres.com:80</a>&gt;<br><br>&lt;/VirtualHost&gt;<br><br>&lt;VirtualHost <a href="http://www.domain-b.com:80">www.domain-b.com:80</a>
&gt;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ServerName <a href="http://www.domain-b.com:80">www.domain-b.com:80</a><br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ServerAdmin <a href="mailto:root@domain-b.com">root@domain-b.com</a><br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DocumentRoot &quot;/var/www/localhost/htdocs&quot;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ProxyPass / balancer://domain-b/ stickysession=jsessionid<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ProxyPreserveHost On<br>
<br>&nbsp; &nbsp; &nbsp; &nbsp; &lt;Proxy balancer://domain-b/&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BalancerMember <a href="http://192.168.0.2:80">http://192.168.0.2:80</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BalancerMember <a href="http://192.168.0.3:80">http://192.168.0.3:80
</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/Proxy&gt;<br><br>&lt;/VirtualHost&gt;<br><br>Then, webserver X and webserver Y have the following configuration:<br><br>&lt;VirtualHost _default_:80&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ServerName <a href="http://www.domain-a.com">
www.domain-a.com</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ServerAdmin <a href="mailto:root@domain-a.com">root@domain-a.com</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DocumentRoot &quot;/var/www/localhost/htdocs&quot;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ProxyPass / balancer://default/ stickysession=jsessionid
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ProxyPreserveHost On<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;Proxy balancer://default/&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BalancerMember <a href="http://192.168.0.4:8080">http://192.168.0.4:8080</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/Proxy&gt;<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;IfModule mpm_peruser_module&gt;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ServerEnvironment apache apache<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/IfModule&gt;<br>&lt;/VirtualHost&gt;<br><br>&lt;VirtualHost <a href="http://www.domain-b.com:80">www.domain-b.com:80</a>&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ServerName <a href="http://www.domain-b.com:80">
www.domain-b.com:80</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ServerAdmin <a href="mailto:root@domain-b.com">root@domain-b.com</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; DocumentRoot &quot;/var/www/localhost/htdocs&quot;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ProxyPass / balancer://domain-b/ stickysession=jsessionid
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ProxyPreserveHost On<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;Proxy balancer://domain-b/&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BalancerMember <a href="http://192.168.0.4:8180">http://192.168.0.4:8180</a><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/Proxy&gt;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;IfModule mpm_peruser_module&gt;
<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ServerEnvironment apache apache<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;/IfModule&gt;<br>&lt;/VirtualHost&gt;<br><br>Can anyone comment on the above configuration? A few things that indicate something is configured wrong:<br><br>
*) When I look at the balancer manager page for BOTH domain-a (<a href="http://www.domain-a.com/balancer-manager">www.domain-a.com/balancer-manager</a>) and domain-b (<a href="http://www.domain-b.com/balancer-manager">www.domain-b.com/balancer-manager
</a>) it ALWAYS only lists the domain-b balancer.<br>*) Requests for <a href="http://www.domain-a.com">www.domain-a.com</a> AND <a href="http://www.domain-b.com">www.domain-b.com</a> ALWAY end up on the JBoss instance for domain-a
<br><br>Any help greatly appreciated.<br><br>Yours truly,<br>Nes<br>

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