fix delegate_to for jinja

hadoop/README.md

@@ -170,9 +170,6 @@ To deploy this cluster fill in the inventory file as follows:
 		hadoop2
 		hadoop3
 
-		[qjournal_servers]
-		[zookeeper_servers]
-
 and edit the group_vars/all file to disable HA:
 
 		ha_enabled: False

hadoop/group_vars/all

@@ -1,13 +1,13 @@
 iface: eth1
 
-ha_enabled: False
+ha_enabled: True
 
 hadoop:
     
 #Variables for <core-site_xml> - common
     
     fs_default_FS_port: 8020
-    nameservice_id: mycluster3
+    nameservice_id: mycluster4
 
 #Variables for <hdfs-site_xml>     
     
@@ -34,7 +34,7 @@ hadoop:
     zookeeper_election_port: 3888
 
 #Variables for <mapred-site_xml> - common
-    mapred_job_tracker_ha_servicename: myjt3 
+    mapred_job_tracker_ha_servicename: myjt4 
     mapred_job_tracker_http_address_port: 50030
     mapred_task_tracker_http_address_port: 50060 
     mapred_job_tracker_port: 8021

hadoop/roles/hadoop_secondary/tasks/main.yml

@@ -55,10 +55,10 @@
 
 - name: start zkfc for jobtracker 
   service: name=hadoop-0.20-mapreduce-zkfc state=started
-  delegate_to: ${item}
+  delegate_to: '{{ item }}'
   with_items: groups.hadoop_masters
 
 - name: start hadoop Jobtracker services
   service: name=hadoop-0.20-mapreduce-jobtrackerha state=started
-  delegate_to: ${item}
+  delegate_to: '{{ item }}'
   with_items: groups.hadoop_masters