java - Spring JMS - 指数消息重新传递策略被忽略

Question

我们正在尝试使用 spring jms 为 ActiveMQ 设置重新传送策略。我们为重新传递设置了指数回退，但它似乎被忽略了——消息重新传递之间的间隔是固定的，而不是呈指数增长。

有谁知道可能是什么问题？这是我们的 spring-jms 配置:

<bean id="connectionFactory" class="org.apache.activemq.ActiveMQConnectionFactory"
    p:brokerURL="${activemq_url}">
    <property name="redeliveryPolicy" ref="redeliveryPolicy" />
</bean>

<bean id="redeliveryPolicy" class="org.apache.activemq.RedeliveryPolicy">
    <property name="queue" value="*" />
    <property name="initialRedeliveryDelay" value="10000" />
    <property name="redeliveryDelay" value="10000" />
    <property name="maximumRedeliveries" value="-1" />
    <property name="useExponentialBackOff" value="true" />
    <property name="backOffMultiplier" value="5" />
</bean>

<bean id="cachingConnectionFactory" class="org.springframework.jms.connection.CachingConnectionFactory" 
    p:targetConnectionFactory-ref="connectionFactory" p:sessionCacheSize="10" 
    />

<!-- A JmsTemplate instance that uses the cached connection and destination -->
<bean id="jmsTemplate" class="org.springframework.jms.core.JmsTemplate">
    <property name="connectionFactory" ref="cachingConnectionFactory" />
    <property name="messageConverter" ref="messageConverter" />
    <property name="sessionTransacted" value="true" />
</bean>

<!-- The Spring message listener container configuration -->
<jms:listener-container container-type="default"
    destination-type="queue" connection-factory="connectionFactory"
    acknowledge="transacted" concurrency="1" cache="consumer">
    <jms:listener destination="testQueue" ref="testService"
        method="onMessage" />
</jms:listener-container>

谢谢!

编辑:这是一个日志示例，每 5 秒重新传送一次:

11 May 2014 18:52:00  WARN DefaultMessageListenerContainer - Execution of JMS message listener failed, and no ErrorHandler has been set.
javax.jms.JMSException: Sun May 11 18:52:00 IDT 2014
at ...
11 May 2014 18:52:05  WARN DefaultMessageListenerContainer - Execution of JMS message listener failed, and no ErrorHandler has been set.
javax.jms.JMSException: Sun May 11 18:52:05 IDT 2014
at ...
11 May 2014 18:52:10  WARN DefaultMessageListenerContainer - Execution of JMS message listener failed, and no ErrorHandler has been set.
javax.jms.JMSException: Sun May 11 18:52:10 IDT 2014
at ...
11 May 2014 18:52:15  WARN DefaultMessageListenerContainer - Execution of JMS message listener failed, and no ErrorHandler has been set.
javax.jms.JMSException: Sun May 11 18:52:15 IDT 2014
at ...
11 May 2014 18:52:20  WARN DefaultMessageListenerContainer - Execution of JMS message listener failed, and no ErrorHandler has been set.
javax.jms.JMSException: Sun May 11 18:52:20 IDT 2014
at ...

Answer 1

所以，我想我发现了问题:当我之前测试该策略时，我抛出了 JMSException 以获取要重新传递的消息。

我将抛​​出的异常更改为 Exception/RuntimeException，指数回退起作用了。

我不确定为什么 JMSException 会导致指数退避策略被忽略...有人有任何想法吗？