[rabbitmq-discuss] Rabbit Persistence Store Documentation

Matthias Radestock matthias at rabbitmq.com
Wed May 22 07:45:56 BST 2013

On 21/05/13 19:21, Adhiraj Sarpeshkar wrote:
> It took me some digging to find out that Rabbit uses a Mnesia database
> for storage and that the store for a node is located under
> /var/lib/rabbitmq/mnesia/rabbit/<node_name>.   Not that this is terribly
> important information for most people, but maybe it could be featured
> more prominently in the docs?  Or I might be blind and it's already
> there--in which case a link would be much appreciated in case I need to
> revisit this in the future.

See the setting for RABBITMQ_MNESIA_DIR in 
http://www.rabbitmq.com/relocate.html#unix, and the explanation above it...

The directory where this RabbitMQ node's Mnesia database files are 
placed. (In addition to Mnesia files this location also contains message 
storage and index files as well as schema and cluster details.)

So note that RabbitMQ isn't actually storing *messages* in mnesia. They 
are written to files under $RABBITMQ_MNESIA_DIR but they are not part of 
the mnesia database.


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