André Warnier wrote:
edponce wrote:
depending on the needs of the problem. I need to have 2 instances of
tomcat
on the same server for the same application. One would be for
production and
the other for development (which can be start and stopped whenever
without
affecting the production one).
You do not necessarily need two separate instances of Tomcat.
Under Tomcat, each application can be started and stopped (and even a
new version reloaded) without stopping the Tomcat server.
You would just need to "name" your applications differently.
(like "http://host.mycompany.com/real-app"; and
"http://host.mycompany.com/test-app";).
Yes, that's possible.
There also exists the possibility to run one Tomcat with different
"Virtual Hosts", on the same port 80.
Each one of these virtual hosts would have a different "DNS name" (like
"realserver.mycompany.com" and "testserver.mycompany.com") and could
have a different directory where the applications reside, but the
application itself would be named the same way.
Yes, that's also possible.
I am mentioning the above two possibilities because, you knowing not
much about Tomcat to start witj, either one of the above is probably
easier to set up than two separate Tomcat instances.
I don't see what's difficult with creating two separate Tomcats. Just
unpack the Tomcat archive two times to different directories[1] and
change the ports used in one of them so that they are unique. Looking at
the default server.xml, there are three numbers to be changed (YMMV if
you add/remove Connectors).
The difference between the above solutions and two really separate
Tomcat instances would be if the test application could really crash the
whole server, in which case you may not like one of the above solutions.
Exactly.
Furthermore, if I understand the OP's statement above correctly, he
wants to be able to restart the development Tomcat without affecting the
production Tomcat. That's not possible with either of those two solutions.
Comments anyone ?
No matter which possibilities exist to set up multiple Tomcat instances
on a single machine, I would *never* use a production server for
development. If I was in the OP's shoes, I'd rethink this requirement
(if it indeed is one).
Regards
mks
[1] Of course, one can create multiple Tomcat instances from a single
binary by using multiple different CATALINA_BASEs. But that might be
unnecessary complex in this case.
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