Ubuntu – tomcat7 server – can’t install into Eclipse Kepler

First of all, you need to check whether you have java installed on your system. You can check by using the command:

java -version

If java is not installed, then you should install it by doing

sudo apt-get install default-jre

Afterwards, download Eclipse from the download section of the official website (http://www.eclipse.org/downloads/). Remember to choose the correct package for your architecture (32bit or 64 bit). The package will have the name:

eclipse-standard-kepler-SR1-linux-gtk-x86_32.tar.gz

or

eclipse-standard-kepler-SR1-linux-gtk-x86_64.tar.gz

After you have downloaded the correct package, extract the eclipse.XX.YY.tar.gz using

tar -zxvf eclipse.XX.YY.tar.gz

switch to root user:

sudo -i

Copy the extracted folder to /opt

cp -r eclipse.XX.YY /opt

Create a desktop file in the location /usr/share/applications and install it:

gedit eclipse.desktop

Copy the following to the eclipse.desktop file.

[Desktop Entry]
Name=Eclipse 
Type=Application
Exec=eclipse
Terminal=false
Icon=eclipse
Comment=Integrated Development Environment
NoDisplay=false
Categories=Development;IDE;
Name[en]=Eclipse

Give the desktop file permission to be executed, run:

chmod +x eclipse.desktop

Run the following command to automatically install it in the unity:

desktop-file-install eclipse.desktop

Create a symlink in /usr/local/bin using

cd /usr/local/bin
ln -s /opt/eclipse/eclipse

For an eclipse icon to be displayed in dash, eclipse icon can be added as

cp /opt/eclipse/icon.xpm /usr/share/pixmaps/eclipse.xpm

Module mod_jk is the Tomcat redirector module that requires workers.properties and httpd configuration file update.

workers.properties is a file that describes the host(s) and port(s) used by the workers (Tomcat processes).

If your Tomcat application are stand-alone, you don't need to define loadbalancer worker that provide load balancing, meaning run multiple Tomcat workers each on a machine of its own and distribute the requests between them.

Your file should be:

 worker.geoserver.port=8009 #ajp port on geoserver server
 worker.geoserver.host=localhost
 worker.geoserver.type=ajp13

 worker.geowebcache.port=8010 #ajp port on geoserver server
 worker.geowebcache.host=localhost
 worker.geowebcache.type=ajp13 

 worker.jk-status.type=status
 worker.list=jk-status, geowebcache, geoserver

Where worker jk-status is a special type of worker that does not forward requests to Tomcat instances. Instead it allows to retrieve status and configuration information at runtime, and furthermore to change many configuration items dynamically. This can be done via a simple embedded web interface.

In apache httpd configuration file in this case /etc/apache2/sites-available/ourgeoserver.org:

  JkWorkersFile /path/workers.properties

where path is where you have saved your workers.properties file.

  JkLogFile "|/usr/bin/rotatelogs /var/log/httpd/mod_jk.log 86400"
  JkLogLevel info
  JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "

for activate logs, this is an examples, change path as you need

  JkMount /url1|/*=geoserver
  JkMount /url2|/*=geowebcache
  JkMount /status|/*=jk-status

where url1 and url2 are the initial part of url. Apache choose worker base on http url