https://github.com/michaelklishin/priority-consumer-examples

Examples that demonstrate various priority queueing scenarios with RabbitMQ, in Java
https://github.com/michaelklishin/priority-consumer-examples

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Examples that demonstrate various priority queueing scenarios with RabbitMQ, in Java

• Host: GitHub
• URL: https://github.com/michaelklishin/priority-consumer-examples
• Owner: michaelklishin
• License: mit
• Created: 2014-01-24T12:49:27.000Z (almost 11 years ago)
• Default Branch: master
• Last Pushed: 2014-01-24T12:49:44.000Z (almost 11 years ago)
• Last Synced: 2024-05-08T19:22:11.181Z (6 months ago)
• Language: Java
• Size: 102 KB
• Stars: 1
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Priority Queueing Examples

This repository contains some examples on how priority queueing

can be achieved with RabbitMQ (which as of early 2014 does not

support priorities).

## Hi-Lo Priority Consumer

Many applications have a high volume rate of low priority tasks and

a low rate of high priority task, with the requirement that high

priority tasks are completed eventually without waiting for

the entire existing backlog of low priority tasks.

To achieve this with RabbitMQ, use multiple queues (this example

uses two) with separate channels (or connections, if you want

to use separate thread pools for deliveries), and two queues, e.g.

 * `priorities.high`

 * `priorities.low`

Then add a consumer or multiple consumers to each queue.

[HiLoPriorityConsumers](./hilo-consumer/src/main/java/com/novemberain/consumers/HiLoPriorityConsumers.java) demonstrates this approach.

## License & Copyright

(c) Michael S. Klishin, 2014

Released under the [MIT license](http://opensource.org/licenses/MIT).