[rabbitmq-discuss] make node a disk node

Alexandru Scvorţov alexandru at rabbitmq.com
Thu Mar 31 13:59:49 BST 2011


The disk nodes in the cluster are the nodes that follow the "rabbitmqctl
cluster" command, so to turn a node into a disk node, just run the
cluster command again adding it to the list of disk nodes.

In the docs, rabbit at rabbit2 becomes a disk node after
  rabbit2$ rabbitmqctl cluster rabbit at rabbit1 rabbit at rabbit2
  Clustering node rabbit at rabbit2 with [rabbit at rabbit1, rabbit at rabbit2]

Hope this helps.


On Thu, Mar 31, 2011 at 01:37:37PM +0200, Marcin Krol wrote:
> Hash: SHA1
> Hello everyone,
> For the life of me I can't find this info in documentation: how to make
> a node a disk node?
> http://www.rabbitmq.com/clustering.html#change-type
> "We can change the type of a node from ram to disk and vice versa. Say
> we wanted to reverse the types of rabbit at rabbit2 and rabbit at rabbit3,
> turning the former from a ram node into a disk node and the latter from
> a disk node into a ram node. To do that we simply stop the RabbitMQ
> application, change the type with an appropriate cluster command, and
> restart the application."
> Err... what is "an appropriate cluster command"? manpage of rabbitmqctl
> does not say anything about that!
> Help is appreciated.
> Regards,
> mk
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