List/Grid Tag Archives: JMS

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Using ActiveMQ – “Master/Slave” configuration with failover protocol

Introduction ActiveMQ broker(s) tends to be a core piece of messaging infrastructure in an enterprise. It is vital for this messaging infrastructure to be highly available and scalable. ...
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Temp, Store and Memory Percent Usage in ActiveMQ

In order to effectively use ActiveMQ, it is very important to understand how ActiveMQ manages memory and disk resources to handle non-persistent and persistent messages. ActiveMQ has ...
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Lessons learned: ActiveMQ, Apache Camel and connection pooling

Every once in a while, I run into an interesting problem related to connections and pooling with ActiveMQ, and today I’d like to discuss something that is not always very clear and ...
spring-interview-questions-answers

Spring JMS: Processing messages within transactions

1.Introduction This post will show you how an error in the execution of the consumer during the asynchronous reception of messages with JMS, can lead to the loss of messages. I then ...
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Running multiple ActiveMQ instances on one machine

A few weeks ago I started making use of Apache ActiveMQ again as the JMS provider with my Mule ESB solution. Since it had been a few years that I used ActiveMQ I thought it would be ...
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Apache ActiveMQ 5.9 released

The Apache ActiveMQ team has just released the new ActiveMQ 5.9 release.This release is 8 months of hard work since the previous 5.8 release. In this release we have as usual more ...
java-interview-questions-answers

All Other Metrics Are Useless

When it comes to queues, whether they’re implemented as JMS, database tables (i.e. what Ruby’s Delayed::Job uses for a queue), or even Amazon’s SQS, the most common metric used ...
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Java 8: Definitive guide to CompletableFuture

Java 8 is coming so it’s time to study new features. While Java 7 and Java 6 were rather minor releases, version 8 will be a big step forward. Maybe even too big? Today I will ...
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Java EE 7: JMS 2.0 With Glassfish v4

Java EE 7 has been recently accepted by the Executive Committee. This means that soon we should have Java EE 7 application servers available on the market. One of the specifications ...
spring-interview-questions-answers

Spring JMS, message automatic conversion, JMS template

In one of my projects I was supposed to create a message router that like all routers was supposed to take the JMS messages from one topic and put it into another one. The message itself ...
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