• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
  • Campbell Ritchie
  • Ron McLeod
  • Tim Cooke
  • Liutauras Vilda
  • Jeanne Boyarsky
  • Paul Clapham
  • Rob Spoor
  • Junilu Lacar
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Piet Souris
  • Carey Brown

Consumer is not receiving messages from ActiveMQ

Posts: 10
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
We are facing a random issue with ActiveMQ and its consumers. We observe that, few consumers are not receiving messages, even though they are connected to ActiveMQ queue. But it works fine after the consumer restart.

We have a queue named testQueue at ActiveMQ side. A single consumer is trying to de-queue the messages from this queue. We are using Spring's DefaultMessageListenerContainer for this purpose. Message is being delivered to the consumer node from ActiveMQ Broker. From the tcpdump as well, it was obvious that, message is reaching the consumer node, But the actual consumer code is not able to see the message. In other words, the message seems to be stuck either in ActiveMQ consumer code or in Spring’s DefaultMessageListenerContainer.

See refer to the below fig. for more clarity on the issue. Message is reaching Consumer node, but it is not reaching the “Actual Consumer Class”, which means that the message got stuck either in AMQ consumer code or Spring DMLC.

Below are the details captured from ActiveMQ admin.

Queue-Name /Pending-Message-Count /Consumer-Count /Messages-Enqueued /Messages-Dequeued
testQueue /9 /1 /9 /0

Below are the more details.

Connection-ID /SessionId /Selector /Enqueues /Dequeues /Dispatched /Dispatched-Queue /Prefetch
ID:bearsvir52-45176-1375519181268-3:5 /1 / /9 /0 /9 /9 /250

From the second table it is obvious that, messages are being delivered to the consumer, but the consumer is not acknowledging the message. Hence the messages are stuck in Dispatched-Queue at broker side.

Few points for to your notice:

1)There is no time difference b/w Broker node and consumer node.

2)Observed the tcpdump at consumer side. We can see MessageDispatch(Openwire) packet being transferred to consumer node, But could not find the MessageAck(Openwire) for the same.

3)Sometimes it is working on a node, and sometimes it is creating problem on the same node.
Posts: 1682
Android Mac OS X IntelliJ IDE Spring Linux
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Put your logging level to trace on org.springframework.jms you will get tons of stuff logged but you should be able to answer the question of where stuff is happening.
    Bookmark Topic Watch Topic
  • New Topic