%BOOK_ENTITIES; ]> This section describes how to install ActiveMQ.

ActiveMQ only runs on Java 7 or later. By default, ActiveMQ server runs with 1GiB of memory. If your computer has less memory, or you want to run it with more available RAM, modify the value in bin/run.sh accordingly. For persistence, ActiveMQ uses its own fast journal, which you can configure to use libaio (which is the default when running on Linux) or Java NIO. In order to use the libaio module on Linux, you'll need to install libaio, if it's not already installed. If you're not running on Linux then you don't need to worry about this. You can install libaio using the following steps as the root user: Using yum, (e.g. on Fedora or Red Hat Enterprise Linux): yum install libaio Using aptitude, (e.g. on Ubuntu or Debian system): apt-get install libaio

After downloading the distribution, unzip it into your chosen directory. At this point it should be possible to run straight out of the box, the following describes the directory structure: |___ bin | |___ config | |___ jboss-as-4 | |___ jboss-as-5 | |___ stand-alone | |___ docs | |___ api | |___ quickstart-guide | |___ user-manual | |___ examples | |___ core | |___ javaee | |___ jms | |___ lib | |___ licenses | |___ schemas bin -- binaries and scripts needed to run ActiveMQ. config -- configuration files needed to configure ActiveMQ. This contains configurations to run ActiveMQ either in stand-alone or inside JBoss AS 4 and 5. Please refer to the reference guide for details on configuration. docs -- guides and javadocs for ActiveMQ examples -- JMS and Java EE examples. Please refer to the 'running examples' chapter for details on how to run them. lib -- jars and libraries needed to run ActiveMQ licenses -- licenses for ActiveMQ schemas -- XML Schemas used to validate ActiveMQ configuration files