mqtt activemq 优化

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<!-- START SNIPPET: example -->

<beans xmlns="http://www.springframework.org/schema/beans"

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">

<property name="locations">

<value>file:${activemq.conf}/credentials.properties</value>

</property>

</bean>

 

<!-- Allows accessing the server log -->

<bean id="logQuery"

class="io.fabric8.insight.log.log4j.Log4jLogQuery" lazy-init="false"

scope="singleton" init-method="start" destroy-method="stop">

</bean>

 

<!-- The <broker> element is used to configure the ActiveMQ broker. -->

<broker xmlns="http://activemq.apache.org/schema/core"

brokerName="localhost" dataDirectory="${activemq.data}"

persistent="true">

 

<destinationPolicy>

<policyMap>

<policyEntries>

<policyEntry topic=">" gcInactiveDestinations="true"  producerFlowControl="false" memoryLimit="1mb"

inactiveTimoutBeforeGC="30000">

<!-- The constantPendingMessageLimitStrategy is used to prevent slow 

topic consumers to block producers and affect other consumers by limiting 

the number of messages that are retained For more information, see: http://activemq.apache.org/slow-consumer-handling.html 

<pendingMessageLimitStrategy> <constantPendingMessageLimitStrategy limit="1000"/> 

</pendingMessageLimitStrategy>

 

-->

 

 

 

 

<dispatchPolicy>

 

<strictOrderDispatchPolicy />

 

</dispatchPolicy>

<subscriptionRecoveryPolicy>

<timedSubscriptionRecoveryPolicy recoverDuration="300000" /> 

</subscriptionRecoveryPolicy>

<deadLetterStrategy>

 

<individualDeadLetterStrategy topicPrefix="Test.DLQ." />

 

</deadLetterStrategy>

 

<pendingSubscriberPolicy>

 

<fileCursor />   <!-- fileCursor   vmCursor -->

 

</pendingSubscriberPolicy>

 

<pendingDurableSubscriberPolicy>

 

<storeDurableSubscriberCursor />  <!-- storeDurableSubscriberCursor, vmDurableCursor and fileDurableSubscriberCursor -->

 

</pendingDurableSubscriberPolicy>

 

<pendingMessageLimitStrategy>

<constantPendingMessageLimitStrategy limit="1000"/>

</pendingMessageLimitStrategy>

 

 

</policyEntry>

<policyEntry queue=">" gcInactiveDestinations="true"

inactiveTimoutBeforeGC="30000">

<!-- The constantPendingMessageLimitStrategy is used to prevent slow 

topic consumers to block producers and affect other consumers by limiting 

the number of messages that are retained For more information, see: http://activemq.apache.org/slow-consumer-handling.html -->

<pendingMessageLimitStrategy>

<constantPendingMessageLimitStrategy

limit="1000" />

</pendingMessageLimitStrategy>

</policyEntry>

 

</policyEntries>

 

</policyMap>

 

</destinationPolicy>

 

 

<!-- The managementContext is used to configure how ActiveMQ is exposed 

in JMX. By default, ActiveMQ uses the MBean server that is started by the 

JVM. For more information, see: http://activemq.apache.org/jmx.html -->

<managementContext>

<managementContext createConnector="false" />

</managementContext>

 

<!-- Configure message persistence for the broker. The default persistence 

mechanism is the KahaDB store (identified by the kahaDB tag). For more information, 

see: http://activemq.apache.org/persistence.html -->

<persistenceAdapter>

<kahaDB directory="${activemq.data}/kahadb"

journalMaxFileLength="64mb" indexCacheSize="40000" />

</persistenceAdapter>

 

 

<!-- The systemUsage controls the maximum amount of space the broker will 

use before disabling caching and/or slowing down producers. For more information, 

see: http://activemq.apache.org/producer-flow-control.html -->

<systemUsage>

<systemUsage>

<memoryUsage>

<memoryUsage limit="128 mb" />

</memoryUsage>

<storeUsage>

<storeUsage limit="10 gb" />

</storeUsage>

<tempUsage>

<tempUsage limit="1 gb" />

</tempUsage>

</systemUsage>

</systemUsage>

 

<sslContext>

<sslContext

keyStore="file:${activemq.base}/conf/cacert/cloud.jks"

keyStorePassword="123456"

trustStore="file:${activemq.base}/conf/cacert/truststore.ts"

trustStorePassword="123456" />

</sslContext>

<!-- The transport connectors expose ActiveMQ over a given protocol to 

clients and other brokers. For more information, see: http://activemq.apache.org/configuring-transports.html -->

<transportConnectors>

<!-- DOS protection, limit concurrent connections to 1000 and frame size 

to 100MB -->

<transportConnector name="openwire"

uri="tcp://0.0.0.0:61616?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600" />

<transportConnector name="amqp"

uri="amqp://0.0.0.0:5672?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600" />

<transportConnector name="stomp"

uri="stomp://0.0.0.0:61613?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600" />

<transportConnector name="mqtt"

uri="mqtt://0.0.0.0:1883?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600&amp;wireFormat.maxInactivityDuration=0" />

<transportConnector name="mqtt+ssl"

uri="mqtt+nio+ssl://0.0.0.0:8883?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600&amp;wireFormat.maxInactivityDuration=0" />

<transportConnector name="ws"

uri="ws://0.0.0.0:61614?maximumConnections=1000&amp;wireFormat.maxFrameSize=104857600" />

</transportConnectors>

 

<!-- destroy the spring context on shutdown to stop jetty -->

<shutdownHooks>

<bean xmlns="http://www.springframework.org/schema/beans"

class="org.apache.activemq.hooks.SpringContextHook" />

</shutdownHooks>

 

</broker>

 

<!-- Enable web consoles, REST and Ajax APIs and demos The web consoles 

requires by default login, you can disable this in the jetty.xml file Take 

a look at ${ACTIVEMQ_HOME}/conf/jetty.xml for more details -->

<import resource="jetty.xml" />

 

</beans>

<!-- END SNIPPET: example -->