[rabbitmq-discuss] Scheduling algorithms

Fri Dec 25 10:41:58 GMT 2009

Hello

Let me explain it with some examples.

There are processes A,B and C that insert messages into RabbitMQ. All 
this messages should reach point D.

If A,B and C insert various number of messages into RabbitMQ,what 
algorithms will RMQ use to deliver those messages to D ?

Examples :

A inserts 100 messages
B inserts 100 messages
C inserts 100 messages

Will RMQ send all messages toward D in round-robin fashion or the 
delivery order will be undermined ? Or maybe in some other fashion ?

A inserts 100 messages
B inserts 100 messages
C inserts 1000 messages

What mechanisms one might have to deliver all this messages to D in 
desired fashion ? Somebody would like to deliver them in round-robin 
fashion (send 1 A's message,send 1 B's message,send 1 C's 
message),others might want to give higher priority to C's messages or so 
(example : send 10 A's messages,send 10 B's messages,send 100 C's 
messages),or some other model of delivery that business model could desire ?

I'm asking this questions because business model might be changed 
on-the-fly,so it might be very important to be able to change the 
behavior of delivery mechanism to satisfy those business model.

P.S.

I was lazy to add multiply destination points,but I guess You get the 
point with the above examples as well.

Sincerely

Alexis Richardson wrote:
> Dragan
>
> Sorry, do you mean:
>
> * Scheduling used internally by RabbitMQ
>
> Or do you mean:
>
> * Recommended approaches to scheduling work when using RabbitMQ queues
>
> ?
>
> alexis
>
>
> On Mon, Dec 21, 2009 at 10:27 AM, Dragan Zubac <zubacdragan at gmail.com> wrote:
>   
>> Hello
>>
>> I was just wondering is there a variety of scheduling algorithms within
>> RabbitMQ (round robin,fair queueing,etc) ?
>>
>> What is supported native and what is contributed if any ?
>>
>> Any case studies or so ?
>>
>> Sincerely
>>
>>
>> Dragan Zubac
>>
>>
>> _______________________________________________
>> rabbitmq-discuss mailing list
>> rabbitmq-discuss at lists.rabbitmq.com
>> http://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss
>>
>>     
>
>   
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