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Re: [cobalt-developers] How to Install Tomcat 4x on a Linux machine

Thanks to William and to Oleg for quick replies and useful information.

For what its worth, the errors
Error: could not find libjava.so
Error: could not find Java 2 Runtime Environment.
were solved by (meticulously) re-installing the JDK. The installation itself
is simple, almost trivial in fact. I have used both the rpm and binary
versions a number of times this weekend in an attempt to reproduce the error
but without success. Java now works but I don't know what caused the
problem.

Once Java worked Tomcat standalone was immediate. I had this working
previously anyway.

Now on to Apache/Tomcat integration.....
Thanks,
John




----- Original Message -----
From: "William L. Thomson Jr." <support@xxxxxxxxxxxxxxxxxxxx>
To: "Cobalt Developers Group" <cobalt-developers@xxxxxxxxxxxxxxx>
Sent: Saturday, February 08, 2003 4:06 AM
Subject: [cobalt-developers] How to Install Tomcat 4x on a Linux machine


> Ok,
>
> In brief there seems to be allot of people having problems with Tomcat
> on a Raq/Cube or just Linux in General.
>
> Here is a quick install guide.
>
> First I tend to install Tomcat or any additional software like my jdk in
> /opt
>
> Like
>
> /opt/jakarta-tomcat-version
> /opt/jdk-version
>
> Then I do a symlink to in the /opt dir
>
> catalina -> jakarta-tomcat-version
> jakarta-tomcat -> jakarta-tomcat-version
> jdk -> /opt/jdk-version
> jre -> /opt/jdk-version/jre
>
> That way it's easy to upgrade tomcat and anything else a later date.
>
> Then you need to make a file in /etc/profile.d called java.sh
>
> In that file you will need something like the following
> export PATH=$PATH:/opt/jdk/bin:/opt/jre/bin:/opt/
> export JAVA_HOME=/opt/jdk
> export JAVA_PATH=/opt/jdk
> export CLASSPATH=/opt/jdk:/opt/jdk/lib:/opt/jre:/opt/jre/lib
> export CATALINA_HOME=/opt/catalina
> export CATALINA_OPTS=-Xmx640M // to set a limit on mem usage
> export TOMCAT_HOME=/opt/jakarta-tomcat
> export LD_LIBRARY_PATH=/opt/jre/lib/i386
>
> The Classpath is optional in Tomcat 4.x for reason I will explain, but
> it's good to at least add jdk and jre to the Classpath like above.
>
> Now you will want to config Tomcat here is simple config, nothing more
> nothing less is required. This is the server.xml file contents
>
> <Server port="8005" shutdown="SHUTDOWN" debug="0">
>   <Service name="Tomcat-Apache">
>     <Connector  debug="0"
>                 acceptCount="10"
>                 minProcessors="5"
>                 maxProcessors="75"
>                 port="8009"
>                 className="org.apache.ajp.tomcat4.Ajp13Connector"/>
>
>     <Engine className="org.apache.catalina.connector.warp.WarpEngine"
>             name="Apache"
>             defaultHost="host.domain.com"
>             debug="0"
>             appBase="webapps">
>
>       <!-- Global logger unless overridden at lower levels -->
>       <Logger className="org.apache.catalina.logger.FileLogger"
>               prefix="apache-" suffix=".log"
>               timestamp="true"/>
>
>         <Host name="host.domain.com" >
>            <Context path=""
>                  docBase="/home/sites/home/web"
>                  crossContext="true"
>                  debug="0"
>                  reloadable="false"
>                  trusted="false" >
>            </Context>
>         </Host>
>
>     </Engine>
>   </Service>
> </Server>
>
> The last host one will be needed for any site that will use Tomcat.
>
> You will also want to create a workers.properties file in the
> jakarta-tomcat/conf dir that should contain the following
>
> workers.tomcat_home=/opt/catalina
>
> workers.java_home=/opt/jdk
>
> ps=/
>
> worker.list=ajp13
>
> worker.ajp13.port=8009
> worker.ajp13.host=localhost
> worker.ajp13.type=ajp13
> worker.ajp13.lbfactor=2
>
> Also you should move the to the bin dir and do a
>
> rm *.bat
>
> To get rid of the windows batch files.
>
> I also delete all files/folders in the webapps dir.
>
> Now you will need to symbolic link my preferred way or place any needed
> .jar files in the jakarta-tomcat/lib dir or the
> jakarta-tomcat/common/lib.
>
> As when you start Tomcat it will set it's own internal Classpath. That's
> why you do not really have to export one for the system in the java.sh
> file.
>
> I then symbolically link the catalina.sh start up file to
> /etc/rc.d/init.d
>
> You will then want to place a link to start it at boot time, or do it in
> Apache the Cobalt way, but I am not a fan of that.
>
> So in /etc/rc.d/rc3.d I will place the standard app startup symlink
>
>  S73catalina.sh -> ../init.d/catalina.sh
>
> Ok, now tomcat is working. You now need to dial in Apache. You will need
> to make the mod_jk.so, or get the one out of the jdk-kit pkg. Or ask
> someone to email it to you. :) They usually do not need to be compiled
> for the specific Apache version as long as it is 1.3.x series. You will
> need to place it in the same dir as the other modules. Which on Cobalt
> machines is
>
> /usr/lib/apache/
>
>
> Now in the httpd.conf file you will need.
>
> # Setup Tomcat
> <Location ~ ".*/WEB-INF/">
>   AllowOverride None
>   deny from all
> </Location>
>
> <Location ~ ".*/META-INF/">
>   AllowOverride None
>   deny from all
> </Location>
> LoadModule jk_module modules/mod_jk.so
> JkWorkersFile /opt/catalina/conf/workers.properties
> JkLogFile /var/log/httpd/mod_jk.log
> JkLogLevel error
>
> You could put the location stuff in a different conf file, but later
> versions of Apache say to use one file for it all. So I put it in the
> main one.
>
> Then for each web site you put in the server.xml file you will need to
> map it to Tomcat in the virtualhost portions
>
> JkMount /*.jsp ajp13
> JkMount /servlet/* ajp13
>
> That's basically it. If you plan to use a security manager and etc. then
> that is up to you. As you will have many questions about that. From here
> consult the docs that come with Tomcat, or go to apache.org.
>
> I will help out with questions but will not hold your hand through the
> process for free. If you want to pay us, I will be more than happy to
> hold your hand, or install it for you.
>
> Of course when you are done restart/start tomcat, and then apache. I do
> not recommend starting apache before Tomcat. But that is up to you.
>
> I think I covered the most important stuff. So good luck, and Java on.
>
> --
> Sincerely,
> William L. Thomson Jr.
> Support Group
> Obsidian-Studios Inc.
> 439 Amber Way
> Petaluma, Ca. 94952
> Phone  707.766.9509
> Fax    707.766.8989
> http://www.obsidian-studios.com
>
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>