elasticsearch/elasticsearch-river-rabbitmq — pull request #19 by julianhille (2013-04-15 12:12:36+00:00)
Title: Feature: enabling/disabling declaration of queue and exchange on startup.

We need to change the rabbitmq settings through a different program,
and then we had to change these settings always in two systems. (ES and
our server setup system).

Default settings are set that the behavior does not change on upgrade. You have to explicitly disable the declaration.