Few public ports w/many Tomcat instances

[Mike Volk]

I'm a Java developer and reluctant/under-qualified server administrator
formulating a strategy for transitioning two production web apps from
Resin to Tomcat.

 

I'm familiar with connecting multiple Resin instances to a single Apache
instance, such that all of the Resin instances (on ports in the 808X
range) are accessible via Apache on ports 80 and 443. I get the gist of
how to do this using Tomcat behind Apache, and how to provide direct
access to multiple instances of Tomcat standalone (without Apache) using
the hostname in combination with the corresponding Tomcat instance's
unique port number.

 

Unfortunately, I must run multiple instances of Tomcat, I must run those
instances on the same machine, and I cannot provide public access to
that (production) machine on any ports other than 80 (http) and 443
(https). Yes, both web apps use both http and https.

 

Is there a better/faster/easier alternative to using Apache as a
front-end "port proxy server" (via vhosts) for my multiple Tomcat
instances? Tomcat alone appears to provide all the web server features I
need, except for the aforementioned "port proxy" functionality. Perhaps
a third instance of Tomcat could do that? Perhaps there is an even more
elegant solution??

 

Mike Volk

Lead Programmer

Northwest Media, Inc.

[Peter Crowther]

> From: Mike Volk [mailto:Mike@...]
> Is there a better/faster/easier alternative to using Apache as a
> front-end "port proxy server" (via vhosts) for my multiple Tomcat
> instances?

Can you get a second IP address assigned to the machine?  If so, bind one Tomcat instance to each IP and you're done.

                - Peter

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[Jess Holle]

Mike Volk wrote:

> I'm a Java developer and reluctant/under-qualified server administrator
> formulating a strategy for transitioning two production web apps from
> Resin to Tomcat.
>
> I'm familiar with connecting multiple Resin instances to a single Apache
> instance, such that all of the Resin instances (on ports in the 808X
> range) are accessible via Apache on ports 80 and 443. I get the gist of
> how to do this using Tomcat behind Apache, and how to provide direct
> access to multiple instances of Tomcat standalone (without Apache) using
> the hostname in combination with the corresponding Tomcat instance's
> unique port number.
>
> Unfortunately, I must run multiple instances of Tomcat, I must run those
> instances on the same machine, and I cannot provide public access to
> that (production) machine on any ports other than 80 (http) and 443
> (https). Yes, both web apps use both http and https.
>
> Is there a better/faster/easier alternative to using Apache as a
> front-end "port proxy server" (via vhosts) for my multiple Tomcat
> instances? Tomcat alone appears to provide all the web server features I
> need, except for the aforementioned "port proxy" functionality. Perhaps
> a third instance of Tomcat could do that? Perhaps there is an even more
> elegant solution??
>  

I'm not aware of any better solutions.

Apache does work quite well in this role.

That said, it would be nice if there was a Java replacement for Apache
in this infrastructure.  It could still use AJP as the communication
protocol and could be an instance of Tomcat or Glassfish or a special
web app as far as I'm concerned -- though ideally it would use NIO
rather than APR as having to build/maintain/distribute native code for
various platforms is the main issue with Apache as I see it.

--
Jess Holle


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[Hassan Schroeder-2]

On Tue, May 13, 2008 at 9:01 AM, Mike Volk <Mike@...> wrote:

> Is there a better/faster/easier alternative to using Apache as a
> front-end "port proxy server"

I haven't used Pound myself but it was strongly recommended by
someone who /is/ using it in production:

  <http://www.apsis.ch/pound/>

HTH!
--
Hassan Schroeder ------------------------ hassan.schroeder@...

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