[rabbitmq-discuss] Maximum Simultaneous Connections

Brett Cameron brett.r.cameron at gmail.com
Wed Apr 18 09:22:12 BST 2012


Supporting Simon's comments - we're currently pushing ~35K connections (and
growing) and the only issue has been ensuring that enough file
descriptors/sockets are available. I'd also comment that this is arguably
more of an Erlang question than anything RabbitMQ-specific... Erlang will
quite happily make (efficient) use whatever the OS can make available.


On Wed, Apr 18, 2012 at 3:08 AM, Simon MacMullen <simon at rabbitmq.com> wrote:

> There's no hard coded maximum in RabbitMQ. Typically you will need to
> raise the ulimit or you'll run out of file descriptors. Once you've done
> that, I don't see 10k connections as a huge deal - you'll need a reasonable
> amount of RAM but it should be very doable.
> Cheers, Simon
> On 17/04/12 12:43, Lars Ellebo wrote:
>> Hello there
>> What is the maximum theoretical simultaneous connections on a Linux
>> RabbitMQ?
>> I want to be able to handle 10.000 simultaneous connections on Linux
>> RabbitMQ with very little traffic on each connection.
>> What amount of system resources are recommended to enable this on Linux
>> (CPU, RAM, DISK etc)?
>> Are there any Resource Limit Parameters I need to adjust on Linux, Erlang
>> or
>> RabbitMQ in order to enable this number of simultaneous connections (like
>> ulimit etc)?
>> /Lars
> --
> Simon MacMullen
> RabbitMQ, VMware
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