puppetlabs/marionette-collective — pull request #88 by sylvainkalache (2013-06-07 20:53:51+00:00)
Title: Extra vhost declaration and wrong value

This plugin.rabbitmq.vhost option is already defined in the previous code block above.

If you still want to keep that, it should be:
plugin.rabbitmq.vhost = /mcollective

instead of:
plugin.rabbitmq.vhost = /

Cheers!
Sylvain