[rabbitmq-discuss] Network partitions
simon at rabbitmq.com
Thu Oct 3 17:02:30 BST 2013
On 03/10/2013 4:56PM, Alvaro Videla wrote:
> Err, what? Where did you get that idea?
> On the following blog post and other CAP Theorem discussions on
> HN/Twitter/etc: http://aphyr.com/posts/288-the-network-is-reliable
Oh, I see.
But that's not talking about Erlang specifically. Other GCed languages
such as Java tend to have a global heap - GC is done globally and the
whole server process hangs while this happens. It's easy to see how a
node could be considered dead in this scenario.
But Erlang has a per-process heap - so each individual connection /
queue / channel / etc has its own small GC pause while the rest of the
server keeps going. And the underlying node-down detection is done by
the Erlang VM anyway, using non-GCed native code.
So I don't think this is a possibility for RabbitMQ.
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