access to vhost 'next' refused for user 'admin': vhost 'next' is down 解决方案

vhost down 掉会导致vhost不可用，使得无法通过这个vhost广播消息
解决方案：删除该vhost，然后重建
# rabbitmqctl delete_vhost next

# rabbitmqctl add_vhost next
# rabbitmqctl set_permissions -p next admin ‘.’ '.’ '.*'