activemq-scalability.xml

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<!--
    Tune ActiveMQ broker so it can handle large number of queues (tens of thousands)
    For more information, see:
    http://activemq.apache.org/how-do-i-configure-10s-of-1000s-of-queues-in-a-single-broker-.html

    Be sure to make necessary changes in your startup script, to

    1. Give broker enough memory
    2. Disable dedicated task runner

    e.g. ACTIVEMQ_OPTS="-Xmx1024M -Dorg.apache.activemq.UseDedicatedTaskRunner=false"

    To run ActiveMQ with this configuration add xbean:conf/activemq-scalability.xml to your command
    e.g. $ bin/activemq console xbean:conf/activemq-scalability.xml
 -->
<beans
  xmlns="http://www.springframework.org/schema/beans"
  xmlns:amq="http://activemq.apache.org/schema/core"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
  http://activemq.apache.org/schema/core http://activemq.apache.org/schema/core/activemq-core.xsd">

    <!-- Allows us to use system properties as variables in this configuration file -->
    <bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"/>

    <broker xmlns="http://activemq.apache.org/schema/core" brokerName="localhost" dataDirectory="${activemq.data}" useJmx="false" advisorySupport="false">

        <!--
            Turn on optimizedDispatch
            For more information, see:
            http://activemq.apache.org/per-destination-policies.html
        -->
        <destinationPolicy>
            <policyMap>
                <policyEntries>
                    <policyEntry queue=">" optimizedDispatch="true" />
                </policyEntries>
            </policyMap>
        </destinationPolicy>

        <!--
            Use KahaDB for persistence
            For more information, see:
            http://activemq.apache.org/kahadb.html
        -->
        <persistenceAdapter>
            <kahaDB directory="${activemq.data}/kahadb" enableIndexWriteAsync="true"/>
        </persistenceAdapter>

        <!--
            Use NIO transport
            For more information, see:
            http://activemq.apache.org/configuring-transports.html#ConfiguringTransports-TheNIOTransport
        -->
        <transportConnectors>
            <transportConnector name="nio" uri="nio://0.0.0.0:61616"/>
        </transportConnectors>

    </broker>

</beans>