是否可以为各个队列设置死信队列 [英] Is it possible to have dead letter queue for individual queues

问题描述

我目前在ActiveMQ服务器中有一个名为 hello.world 的队列。每当消息处理失败时，ActiveMQ都会创建一个默认目录，名为 ActiveMQ.DLQ 。是否可以将该名称更改为 hello.world.DLQ 之类的名称？原因是将来我可能会有几个队列，并且希望它像< queue_name> .DLQ

I currently have a Queue in my ActiveMQ server called hello.world. Whenever a message fails to be processed, ActiveMQ creates a default directory called ActiveMQ.DLQ. Is it possible to change that name to something like hello.world.DLQ? The reason being is that I might have several queues in the future and I want it to be something like <queue_name>.DLQ

推荐答案

在此过程中，您要查找的东西称为个人死信队列策略，
ActiveMQ为每个队列/主题创建特定的DLQ，

The thing you are looking for is called Individual Dead letter Queue strategy, in this process ActiveMQ creates specific DLQ for each queue/topic,

您可以通过调整 activemq.xml 来实现以下目标

you can implement it as follows, by tweaking your activemq.xml a bit

 <destinationPolicy>
    <policyMap>
      <policyEntries>
       <policyEntry queue=">">  <!-- '>' is the wildcard used in ActiveMQ which means for all queues, i.e. same as '*' in any other language -->
        <!-- need to add the following lines in you conf file -->
          <deadLetterStrategy>
            <individualDeadLetterStrategy
              queuePrefix="DLQ." useQueueForQueueMessages="true" />
          </deadLetterStrategy>
        </policyEntry>
      </policyEntries>
    </policyMap>
  </destinationPolicy>

此配置将创建名称为 DLQ的DLQ。< queue_name> ，如果不希望使用前缀，则可以删除 queuePrefix 属性。

this configuration will create DLQ with names like DLQ.<queue_name> , if you do not want the prefix , you can remove queuePrefix attribute.

希望

祝你好运！

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