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Date: Fri, 22 Aug 2008 10:59:53 -0700 (PDT)
From: edponce <edponce@appslm.com>
To: users@tomcat.apache.org
Subject: Re: HOW TO install/setup 2 instances of tomcat on same server
In-Reply-To: <D5222EAB-F113-4040-A380-52E7F11845EB@recallmedia.com.au>
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References: <19079289.post@talk.nabble.com> <48AC9F0F.9060207@ice-sa.com>
 <48ACA35C.4050003@ice-sa.com>
 <D5222EAB-F113-4040-A380-52E7F11845EB@recallmedia.com.au>


Thank you Tom, I think the other repliers were going to far on what they
wanted to do.  this exactly why i want 2 different sessions, "It can also b=
e
useful for evaluating a new =20
version before you unleash it to production." so if i understood everything
i just need to duplicate the tomcat folder, do i need to rename it or
something? Then "On the duplicated tomcat =20
directory, you need to edit the server.xml file so that the second =20
server.xml as unique ports for the shutdown port, the interface port =20
(eg 8080 could become 8081 etc)" and how can i check if i've done this
correctly? that both instances are running?
Thanks for your help... a little more info on what I am running


Server version: Apache Tomcat/5.5.20
Server built:   May 15 2007 09:00:46
Server number:  5.5.20.0
OS Name:        Linux
OS Version:     2.6.22.14-72.fc6
Architecture:   i386
JVM Version:    1.4.2
JVM Vendor:     Free Software Foundation, Inc.


Thomas Haines-2 wrote:
>=20
>>
>>> edponce wrote:
>>>> I know this question has been asked a lot but I've read different =20
>>>> solutions
>>>> depending on the needs of the problem. I need to have 2 instances =20
>>>> of tomcat
>>>> on the same server for the same application. One would be for =20
>>>> production and
>>>> the other for development (which can be start and stopped whenever =20
>>>> without
>>>> affecting the production one).
>>>>> From my understanding i need to have each instance on different =20
>>>>> ports and
>>>> modifying some other files but what I am missing is the technical =20
>>>> things.
>>>> Can any one please guide me on the correct direction so that i =20
>>>> don't mess up
>>>> anything! I've never worked with Tomcat that is why i have no idea =20
>>>> on how to
>>>> do it.
>>> Andr=C3=A9 Warnier wrote:
>>
>> You do not necessarily need two separate instances of Tomcat.  [...] =20
>> There also exists the possibility to run one Tomcat with different =20
>> "Virtual Hosts", on the same port 80.
>> Each one of these virtual hosts would have a different "DNS =20
>> name" (like  "realserver.mycompany.com" and =20
>> "testserver.mycompany.com") and could have a different directory =20
>> where the applications reside, but the application itself would be =20
>> named the same way.
>>
>> The difference between the above solutions and two really separate =20
>> Tomcat instances would be if the test application could really crash =20
>> the whole server, in which case you may not like one of the above =20
>> solutions.
>>
>> Comments anyone ?
>=20
> When I was new to tomcat (arguably when compared with some members of =20
> this list, I could still be considered new), I found it conceptually =20
> easier to work with two instances, as you don't need to switch context =
=20
> names etc when you want to deploy live.  Whilst a little cumbersome, =20
> and inefficient from a resource usage standpoint, when you're =20
> learning, being able to restart tomcat as you shop and change the =20
> server.xml file etc can be useful, without fear of breaking the =20
> production service.  It can also be useful for evaluating a new =20
> version before you unleash it to production.
>=20
> edponce: If you want to run two instances, the easiest way, to my =20
> mind, is to duplicate the tomcat directory.  On the duplicated tomcat =20
> directory, you need to edit the server.xml file so that the second =20
> server.xml as unique ports for the shutdown port, the interface port =20
> (eg 8080 could become 8081 etc).  Once you have made these changes, =20
> you should be able to start each of them up by running their =20
> respective startup scripts.
>=20
> You could achieve the same using links and a few other sharing =20
> techniques, but for simplicity's sake, I think this approach to two =20
> instances using duplicated directories is the most robust.
>=20
> Tom
>=20
>=20
>=20

--=20
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