Tomcat

The apache tomcat is a jsp (java servlet pages) server. It's similar to an http server like the apache server, only it serves jsp. It is required in order to use Thredds or LAS.

Setting up

> cd /home/guillaume/Software/las7
> mkdir tomcat
> cd tomcat
> wget http://neacm.fe.up.pt/pub/apache/tomcat/tomcat-5/v5.5.26/bin/apache-tomcat-5.5.26.tar.gz
> tar -xzf apache-tomcat-5.5.25.tar.gz
> ln -s apache-tomcat-5.5.25/ tomcat

Edit the apache-tomcat-5.5.25/conf/server.xml and change the ports (default:8080) if needed.

To run the tomcat as a daemon service, one needs to compile the jsvc program:

> cd ./tomcat/bin
> tar xvfz jsvc.tar.gz
> cd jsvc-src
> ./configure --with-java=/usr/java
> make
> cp jsvc ..
> cd ..

The tomcat files tree

/bin

• ./jsvc : the loader that runs tomcat as a daemon ( > jsvc -help)
• ./Tomcat5.sh start|stop: the custom bash script that starts or stops the tomcat server

/conf

• server.xml: where one defines which ports for tomcat to use.
• tomcat-users.xml: where one defines who are the valid users for the tomcat server and what are their roles (privileges)

/log

• catalina.out: where one can check the logs and errors issued by the boot and running of the tomcat server.

/webapps

Webapps the root directory where all the .war files (the tomcat servlets) go. Ex: thredds.

Faqs

• How do I restart the tomcat and thredds server in data.mohid.com?

> cd /home/guillaume/Software/las7/tomcat/tomcat/bin
> ./Tomcat5.sh start

• How do I know if tomcat is running?:

> netstat -tlnap | grep 8080

External references

• tomcat homepage