|Home > Documentation > Installing and running > Running Geronimo > Running Multiple Geronimo Instances|
It is possible to run multiple instances of geronimo on the same machine. Currently multiple instances of geronimo share the following directories in
<geronimo_home>, the directory where you installed Geronimo.
Each instance gets its own copy of the following at
bin, lib and schema are read-only, and thus may be shared between instances. The repository is also shared, which means that an application deployed in one instance will show up in the list of deployed modules in all the other instances, but only shown running in the deployed instance.
Start with a fresh image of geronimo. Do not use an image that has been used to run the default instance.
To create an instance named
foo do the following. All your instance data will be put in
<geronimo_home>/foo. All the directories named below are relative to
Follow the procedures as below:
foo. Starting from v2.2, you can use a GShell command deploy/new-instance to help you with this step.
foo/var/config/config-substitutions.propertiesand change the portOffset. Try using any integers such as 1, 2, 10, 20, 30.. for various instances.
org.apache.geronimo.server.namesystem property before you start the server. Use the syntax
-Dorg.apache.geronimo.server.name=foofor an instance named
<geronimo_home>/foo. Add this to your
foo, the port number should be 1099 plus portOffset specified in
The Administrative Console can also be used for all these operations. Connect to an instance by using the right HTTP port (default 8080).
To use multiple repositories see Configuring multiple Repositories.