ActiveMQ：一条待处理消息，但队列为空-ActiveMQ 5.12.0 [英] ActiveMQ: One Pending Message but Queue is empty - ActiveMQ 5.12.0

问题描述

我遇到了与此处所述相同的问题：

• 其他客户：
  
  
  
  
  • 具有相同的行为
  
  
  • 我的Java用户
    
    
    
    
    • 不消耗任何东西
    
    
    • 重启后，继续消耗
    
    
  
  

我们不是在默认的kaha db中而是在Oracle DB中保留消息。我可以在表ACTIVEMQ_MSGS中的数据库中看到待处理的消息。

重新启动activeMQ后，所有客户端均按预期工作。在管理控制台中，我可以看到消息，而Java用户使用了这些消息。

通过更新ActiveMQ 5.7.0解决了上述存在的问题。
我检查了activeMQ日志，但没有发现错误或警告。消息的生产者也未更改。

我为什么会遇到这些问题？

解决方案

问题已解决。
我也在活动的mq邮件列表中询问：
http://activemq.2283324.n4.nabble.com/One-Pending-Message-but-Queue-is-empty-ActiveMQ-5 -12-0-td4715720.html 。

• 首先，我们在客户端添加了此方法调用：

    org.apache.camel.ConsumerTemplate.doneUoW（交换）
    

  ，但最终没有解决问题



• 此外，我们在活动mq中存在加载问题看不见（healthStatus是好，并且jvm值也很好）。
  
  
  
  
  • 我们在activeMQ中有太多队列用于记录旧消息。
  
  
  • 删除它们后，现在一切正常。
  
  

I have the same issue as described here: ActiveMQ: One Pending Message but Queue is empty.

Active MQ shows pending messages for the queue but when I click it it's empty.

• Further clients:
  • with hawtio - same behaviour
  • my java consumer
    • does not consume anything
    • after restart, continued to consume

We persist our messages not in default kaha db but in Oracle DB. I could see the pending messages in database in table ACTIVEMQ_MSGS.

After restart of activeMQ all clients worked as expected. In the administration console I could see the messages and the java consumer consumed the messages.

The mentioned exsiting issue was solved with an update to ActiveMQ 5.7.0. I checked the activeMQ logs but I didn't found errors or warnings. Producer for the messages was also not changed.

Any idea why I experience these issues?

解决方案

Issue is solved now. I also asked in the active mq mailing list: http://activemq.2283324.n4.nabble.com/One-Pending-Message-but-Queue-is-empty-ActiveMQ-5-12-0-td4715720.html.

• First of all we added this method call in our client:

  org.apache.camel.ConsumerTemplate.doneUoW(Exchange exchange)
  

  but it didn't solve the problem finally

• Furthermore we had load problems in active mq which weren't visible (healthStatus was "good" and jvm values looked also fine).
  • We had too many queues in activeMQ used for logging the old messages.
  • After deletion of them everything works fine now.

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