topic « activemq « Java Enterprise Q&A

1. Always ensure only last 10 messages in ActiveMQ Topic    stackoverflow.com

We have an issue in ActiveMQ where we have a huge number of messages not dropping off topics. The topics are set to non-persistent, non-durable. Our Activemq.xml file is

<beans>

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

2. Routing an ActiveMq topic to an external broker    stackoverflow.com

I have an ActiveMq topic which I wish to transform and share with an external broker. At present I have the following which performs the transformation:

<camelContext id="camel" xmlns="http://activemq.apache.org/camel/schema/spring">
   ...

3. ActiveMQ: Simple topic based cluster    stackoverflow.com

Well, lets say I'm building ActiveMQ based chat application. It's pretty simple. Having only one QUEUE.IN and one TOPIC.OUT. All messages are simply routed right away from QUEUE.IN to TOPIC.OUT. Clients ...

4. What are some strategies for detecting when other processes are listening to a queue or topic?    stackoverflow.com

I have a system (let's call it System A) that allows the user to turn on certain processing functions. When these functions are activated, System A will listen for messages from ...

5. activeMQ topic flooding     stackoverflow.com

Running activeMQ 5.4.0 . I have a group of users that subscribe and publish to eachother on various topics through a common activeMQ JMS provider. After a while of activity, the ...

6. JMS Topic vs Queues    stackoverflow.com

I was wondering the difference between a JMS Queue and JMS Topic. From the activemq page, it says

A. Topic

7. Reducing network hops with a distributed topic with ActiveMQ network of brokers    stackoverflow.com

Lets say I have a network of brokers which share a topic on which orders are published. I have two brokers one in location A and one in location B. One of ...

8. How do I ensure a topic is removed from an ActiveMQ broker    stackoverflow.com

I am having some trouble with an ActiveMQ broker not removing unused topics from it's memory. Currently our system is designed to generate many topics dynamically with names designated at ...

9. JMS Topic vs Selector    stackoverflow.com

JMS Topic and JMS Selector are quite different concept, yet they both can be used by a consumer to get only a subset of the messages. in a PubSub scenario, what ...

10. Is it possible for a JMS topic to have multiple publishers    stackoverflow.com

From what I've read so-far, a JMS Topic is 1-to-Many and I wonder if its possible to support Many-to-Many using a topic. Consider a topic called "Reports" with multiple services spread ...

11. ActiveMQ message group for virtual topic    stackoverflow.com

I understand the topic is for broadcasting messages to the clients. But in the active MQ document, it says about load balancing.

Another way of explaining Message Groups is that ...