Cleanup RabbitMQ queues

bash # erl -sname foo -setcookie `cat /var/run/rabbitmq/.erlang.cookie` -remsh rabbit@<vhostname>

# Once inside the erlang shell, use:
erl> rabbit_amqqueue:stat_all().

# Find the queue name you need. If it's the first one on the list, for example, use this:
erl> {ok, Worker, _, _} = lists:nth(1,rabbit_amqqueue:stat_all()).
erl> {ok, Q} = rabbit_amqqueue:lookup(Worker).

# Purge the particular queue
erl> rabbit_amqqueue:purge(Q).