[rabbitmq-discuss] why rabbit eating so much memory?

Wed Jul 10 17:55:39 BST 2013

On 09/07/13 15:59, Rubo Liang wrote:
> My rabbit eats 25G memory, but the queues don't take to much as shown by
> this command: 'rabbitmqctl list_queues name messages memory':
> Listing queues ...
> ha.snssdk.log   695954  16426216
> ha.snssdk.log.dispatch  660748  102698808
> ha.snssdk.log.output    63573   32800680
> ssesion 0       25952
> ssesion.log     101     436328
> ssesion.output  0       148816
> ...done.
>
> As shown above the queues only take about 150M memory. But the rabbit
> process actually takes about 25G.
>
> 'rabbitmqctl status' gives me following output on memory:
>
>   {memory,
>       [{total,25394382848},
>        {connection_procs,140253648},
>        {queue_procs,19311874888},

So that shows queue processes taking up 19G. Perhaps you have queue's in 
vhosts other than '/'? Note that 'rabbitmqctl list_queues' only shows 
information on one vhost ('/' by default).

Matthias.