Download multiple version of apache tomcat and unzip them (prefer to download different version)
Key is to do proper setting in server.xml and run startup.sh in all tomcat server. We need to ensure below 3 ports are configured different in all multiple servers
Connector Port
: This is the port where Apache Tomcat listen for the HTTP requests.Shutdown Port
: This port is used when we try to shutdown the Apache Tomcat Server.AJP (Apache JServ Protocol) Connector Port
: The Apache JServ Protocol (AJP) is a binary protocol that can conduct inbound requests from a web server through to an application server that sits behind the web server.
Locate server.xml in {Tomcat installation folder}\ conf \server.xml
Below port needs to be different for your servers
<Server port=”8015″ shutdown=”SHUTDOWN”>
<Connector port=”8181″ protocol=”HTTP/1.1″
connectionTimeout=”20000″
redirectPort=”8443″ /><Connector port=”8019″ protocol=”AJP/1.3″ redirectPort=”8443″ />