Double the Tomcat: Run Two Instances on One Server
Creating a Custom Unit File for a Second Instance of Apache Tomcat Need to run multiple instances of Tomcat on the same machine? You can set up a second instance by duplicating the configuration and customizing key parameters to avoid conflicts with the first instance. Step-by-Step Procedure 1. Duplicate the Tomcat Installation Start by copying the existing Tomcat directory (typically /opt/tomcat ): # cp -r /opt/tomcat /opt/tomcat-second This creates an independent folder for the second instance, which you can configure separately. 2. Customize Ports and Settings Edit /opt/tomcat-second/conf/server.xml and modify ports to avoid clashes with the default instance. For example: HTTP Connector: Change port="8080" to port="8081" Shutdown Port: Change port="8005" to something like port="8006" AJP Connector: Change port="8009" to port="8010" 3. Create a Custom systemd Un...