[rabbitmq-discuss] asynchronous RPC / activation with RabbitMQ

[Alexandru Scvorţov]

> Is it possible with RabbitMQ to implement asynchronous remote procedure calls
> and throttle the rate at which these are called ?,

Probably.  You can certainly do RPC, asynchronous messaging and
rate throttling with RabbitMQ.

Have a look at the examples in your preferred language:
  http://hg.rabbitmq.com/rabbitmq-java-client/file/default/test/src/com/rabbitmq/examples/
  http://hg.rabbitmq.com/rabbitmq-dotnet-client/file/default/projects/examples/client/
You'll be looking for the client/server pairs.

I'm not sure what you mean by *asynchronous* RPC.  I think you mean
"send a message"/"a bit later, a reply comes back".

> throttle the rate at which these are called 

Depending on what you mean, that may be a bit hard.  There's no way in
RabbitMQ to throttle producers (you can certainly write throttling into
your clients, but a rogue producer will still be able to dump a lot of
messages onto RabbitMQ).  The consumer can still throttle the broker,
though.  So, the broker is going to be the one overloaded with
messages; in this case, it will start writing messages to disk; only if
it is really having problems with lack of memory, will it throttle
publishers.

Hope this helps.

Cheers,
Alex

On Tue, Oct 25, 2011 at 03:10:33AM -0700, ChrisAdkin wrote:
> 
> Is it possible with RabbitMQ to implement asynchronous remote procedure calls
> and throttle the rate at which these are called ?, I ask this as a complete
> newbie to RabbitMQ. 
> -- 
> View this message in context: http://old.nabble.com/asynchronous-RPC---activation-with-RabbitMQ-tp32716352p32716352.html
> Sent from the RabbitMQ mailing list archive at Nabble.com.
> 
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