updated exception handling

tasks/cassandra.yml

diff --git a/tasks/cassandra.yml b/tasks/cassandra.yml
index 4e197d3..4ffcce7 100644
--- a/tasks/cassandra.yml
+++ b/tasks/cassandra.yml
@@ -21,7 +21,7 @@
 - name: Construct cassandra hosts configuration
   cassandra_hosts:
     inventory_hostname: '{{ inventory_hostname }}'
-    hostvars: '{{ hostvars_json }}'
+    hostvars: '{{ hostvars }}'
   when: provided_response_file is not defined or not provided_response_file
 
 #- name: Construct cassandra hosts configuration