diff --git a/ansible/roles/rabbitmq/tasks/main.yml b/ansible/roles/rabbitmq/tasks/main.yml
index 9e8bd5f551..8ef641d99d 100644
--- a/ansible/roles/rabbitmq/tasks/main.yml
+++ b/ansible/roles/rabbitmq/tasks/main.yml
@@ -6,8 +6,6 @@
 - include: start.yml
 
 - name: Sleep while cluster starts
-  command: sleep 15
+  command: sleep 5
   changed_when: False
   failed_when: False
-
-- include: start.yml
diff --git a/ansible/site.yml b/ansible/site.yml
index 99b09f288d..12db9923de 100755
--- a/ansible/site.yml
+++ b/ansible/site.yml
@@ -8,6 +8,7 @@
     - { role: mariadb, tags: mariadb, when: enable_mariadb | bool }
 
 - hosts: rabbitmq
+  serial: 1
   roles:
     - { role: rabbitmq, tags: rabbitmq, when: enable_rabbitmq | bool }