[rabbitmq-discuss] New AMQP 0-9-1 extension added in default/master

Wed Aug 7 19:32:51 BST 2013

Initial support has been added in rabbitmq-c here:
https://github.com/alanxz/rabbitmq-c/pull/133

On Wed, Aug 7, 2013 at 4:47 AM, Michael Klishin <mklishin at gopivotal.com>wrote:

> I'm happy to report that RabbitMQ 3.2 will support a new AMQP 0-9-1
> extension that makes it possible for clients to be notified about
> blocked connections [1].
>
> Documentation for the extension is available on next.rabbitmq.com [2].
> It is currently supported by 4 clients (in their development branches):
>
>  * Java client
>  * .NET client
>  * Erlang client
>  * Bunny (http://rubybunny.info)
>
> with a couple more clients working on supporting it in the near future.
>
> If you maintain a RabbitMQ client, below are some notes about how
> you can add support for this extension.
>
> We've introduced two new AMQP 0-9-1 methods: connection.blocked
> and connection.unblocked. This codegen commit demonstrates what
> properties of what types they have:
> http://hg.rabbitmq.com/rabbitmq-codegen/rev/1748e6cf399a
>
> Next, you need to add connection.blocked to the list of supported
> extensions
> in client capabilities.
>
> How these methods are exposed in the API is client-specific.
> 3 clients (Java, .NET, Bunny) let users register event handlers (callbacks)
> on connection instances.
>
> Below are two diffs that may help you add support for connection.blocked
> to your client:
>
> http://hg.rabbitmq.com/rabbitmq-java-client/rev/fc3a59ca0aab
>
> https://github.com/ruby-amqp/bunny/commit/334d0ceb3f84c03be342ad06dd244f0aa25fb7bc
>
> To test this functionality you can either build RabbitMQ from source (on
> the default branch)
> or use nightly builds available from
> https://www.rabbitmq.com/nightly-builds.html
>
> If you have any questions about this extension, simply reply to this
> thread.
>
> 1. http://www.rabbitmq.com/memory.html
> 2. http://next.rabbitmq.com/connection-blocked.html
> --
> MK
>
>
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>
>
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