[rabbitmq-discuss] Memory limit cleanup, hanging connections.

Irmo Manie irmo.manie at gmail.com
Mon Oct 15 12:15:41 BST 2012

On Mon, Oct 15, 2012 at 12:44 PM, Simon MacMullen <simon at rabbitmq.com>wrote:

> Yes, that's absolutely correct. The blocked connections don't perform any
> network operations at all - which means that not only don't they check for
> heartbeats, they don't even detect the TCP connection being torn down. As
> soon as the memory alarm clears, the connections will unblock, notice the
> TCP connection having gone away, and vanish.
Ok, good to know. I reckon the connections themselves don't take that much
resources or keep hold of memory consuming parts? That it's purely the
queues and their messages eating the memory?

> If you've "filled up" all your queues then they will have been paging to
> disc for some time - cleaning all that up can be quite slow.
Any reason why this is that slow? Does it look up every message 1 by 1 in
the storage or something?

- Irmo
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