diff --git a/roles/nova-compute/tasks/main.yml b/roles/nova-compute/tasks/main.yml
index f7fff79..0ca0d61 100644
--- a/roles/nova-compute/tasks/main.yml
+++ b/roles/nova-compute/tasks/main.yml
@@ -74,3 +74,8 @@
 - name: let nova controler discover new host
   shell: "sleep 10 && docker exec -i nova-controller.service nova-manage cell_v2 discover_hosts"
   delegate_to: "{{ hostvars[groups['nova-controller'][0]]['ansible_hostname'] }}"
+  register: result
+  until: result|succeeded
+  retries: 7
+  delay: 3
+  ignore_errors: yes