Comments on: Rabbits and warrens.

By: Jason

Jason — Sat, 24 Jul 2010 02:26:30 +0000

Multiple channels to my experience really give you two things: concurrency and guaranteed order.

for example, let’s say you’re breaking a file into 100 messages and re-assembling them on the otherside. If you transmit all 100 on one channel you can be guaranteed that message 1 is consumed before message 2 and so on.

Having multiple channels…say one per thread let’s you publish multiple messages more in parallel. Also, let’s say you’ve got one thread that needs to wait on a reply queue after publishing, that channel will not be able to do publishing again until it’s exited consume mode. That would keep your other threads from being able to send or consume messages.

By: Rachid

Rachid — Tue, 20 Jul 2010 12:50:17 +0000

Thank you for this excellent article

By: Darius Damalakas

Darius Damalakas — Wed, 14 Jul 2010 13:20:25 +0000

Hackeron, the download links work fine, just tested, examples work fine. AMQP really rocks

By: [RabbitMQ+Python入门经典] 兔子和兔子窝 | 有氧呼吸

[RabbitMQ+Python入门经典] 兔子和兔子窝 | 有氧呼吸 — Tue, 06 Jul 2010 06:49:44 +0000

[...] RabbitMQ作为一个工业级的消息队列服务器，在其客户端手册列表的Python段当中推荐了一篇blog，作为RabbitMQ+Python的入门手册再合适不过了。不过，正如其标题Rabbit and Warrens（兔子和养兔场）一样，这篇英文写的相当俏皮，以至于对于我等非英文读者来说不像一般的技术文档那么好懂，所以，翻译一下吧。翻译过了，希望其他人可以少用一些时间。翻译水平有限，不可能像原文一样俏皮，部分地方可能就意译了，希望以容易懂为准。想看看老外的幽默的，推荐去看原文，其实，也不是那么难理解…… [...]

By: George

George — Fri, 25 Jun 2010 12:32:20 +0000

Thanks for this writeup! A year and a half later it’s still almost the only resource for AMQP from Python.

One thing it’s not clear for me from the example is what are (multiple) channels used for and how do they relate to exchanges and queues. In which occasions would a client or a server create more than one channels ? If a client does “msg1 = chan1.basic_get(‘po_box’)” and “msg2 = chan2.basic_get(‘po_box’)” back to back, is msg1==msg2 or they are two successive messages (my guess is the latter but then I don’t see the difference of using one vs two channels).

By: Cal Leeming

Cal Leeming — Thu, 27 May 2010 20:46:20 +0000

Heya,

Thank you ever so much for this introduction into RabbitMQ, it’s definitely been one of the more interesting documents I’ve read in quite a long time, and has been quite informative!

Cal

By: Jason

Jason — Tue, 02 Mar 2010 19:33:32 +0000

Hi Hackeron. The embedded download links still work for me.

By: Jason

Jason — Tue, 02 Mar 2010 19:32:37 +0000

Very cool! Thanks Jeffrey!

By: Jason

Jason — Tue, 02 Mar 2010 19:31:57 +0000

Hi Bart. E-mail me and I’ll try and see if there’s a problem with the code: williamsjj at digitar dot com

By: Hackeron

Hackeron — Thu, 18 Feb 2010 03:06:22 +0000

Can someone post the consumer.py and publisher.py files again somewhere?