[rabbitmq-discuss] Producers hanging when reaching high memory watermark on 1.8.1

[Dave Greggory]

Hi Aaron,

Thanks for the tip, but does this merely turn off flow control? How  would 
RabbitMQ try to allocate memory for itself when its configured  this way?

Thanks,
Dave


----- Original Message ----
From: Aaron Westendorf <aaron at agoragames.com>
To: Dave Greggory <davegreggory at yahoo.com>
Cc: "rabbitmq-discuss at lists.rabbitmq.com" <rabbitmq-discuss at lists.rabbitmq.com>
Sent: Fri, August 13, 2010 3:16:45 PM
Subject: Re: [rabbitmq-discuss] Producers hanging when reaching high memory 
watermark on 1.8.1

Dave,

It's likely that flow control kicked in.  I don't know how that's
implemented in Spring, as each client is welcome to implement it as
they see fit.  You can turn it off at the broker thusly:

bofh at host:~$ cat /etc/rabbitmq/rabbitmq.config
[{rabbit, [{vm_memory_high_watermark, 0}]}].

If you have enough monitoring tools in place to keep tabs on Rabbit
and deal with your infrastructure / apps in advance of catastrophe, I
don't personally see a need for flow control.

cheers,
Aaron