On 4 February 2011 14:27, James Godrej <jamesgod...@yahoo.in> wrote: > I have to run multiple instances of Tomcat. > The reason I am doing so is I have a server where I hosted a learning > management > system known as > Sakai which runs on Tomcat 5.5.30 and now on same server I have to host > another > learning management system known as OLAT. >
Sakai 2.x makes enough weird modifications to the classloading mechanisms that I wouldn't recommend running *anything* else in the same JVM as it! Hopefully v3 will alleviate some of the worse problems. > > As per OLAT doc here in Tomcat section > http://www.olat.org/docu/install/olat_install_admin_docu_one_page.html > it says > "In situations where more than one instance is required (e.g., > multiple > cluster nodes on the same host) it is worth setting up each OLAT instance > in its > own JVM and sharing a common base installation > (see Tomcat documentation > concerning CATALINA_BASE installations.) " > > Can some one point me where is that given on Tomcat official docs or what > is the > doc which I gave link above trying to say. > > In the Tomcat installation root, there's a file called RUNNING.txt. It gives details on how to run multiple instances of Tomcat side-by-side. In essence, you copy the directories that are per-Tomcat (conf, work, webapps etc.) and leave the read-only directories (bin etc) in one place. Chuck's point is important. Each Tomcat instance will need a unique endpoint for its shutdown port and each connector - you can't run both on port 80 on the same IP address unless you use some kind of reverse proxy (there are many options here). - Peter
