[rabbitmq-discuss] Can RabbitMQ handle big messages?

Emile Joubert emile at rabbitmq.com
Mon Mar 12 12:26:34 GMT 2012

Hi Zabrane,

On 10/03/12 18:34, Jerry Kuch wrote:
> Hi, Zabrane:  In theory the AMQP protocol IIRC allows crazy large
> message payloads (2^64 bytes I believe).  In practice though, that's
> madness since you end up with potential copying and buffering along the
> way that could make a broker very unhealthy.

I have successfully processed messages as large as 2Gb using RabbitMQ,
where 2Gb was about 5% of the total RAM. If the ratio between message
size and total RAM stays low then you can send even larger messages, up
to the limit Jerry mentioned.


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