[rabbitmq-discuss] RabbitMQ dying during evaluation testing

Tue Apr 21 23:32:08 BST 2009

Jacek,

Jacek wrote:
> Anyway, as part of our test I wrote a *very* simple client that posts a few
> million short messages. It seems to work very well for the first few
> million, but after the first few runs RabbitMQ seems to die.

You have no consumers on the queue, so the messages the producer sends 
will just pile up at the server and eventually RabbitMQ will run out of 
memory.

Flow control should kick in and throttle the producer, but the default 
memory threshold of 95% is probably too high for the server to notice 
the memory pressure before its too late - see 
http://www.rabbitmq.com/admin-guide.html#memsup for adjusting the threshold.

We are working on disk-queues that will allow RabbitMQ to retain more 
message data than fits into memory.

Regards,

Matthias