anchor.diff:        # Use WebHdfs/HttpFs as the communication mechanism.
         # This should be the web service root URL, such as
         # http://namenode:50070/webhdfs/v1
  -      webhdfs_url=http://<%= scope.lookupvar("analytics::hadoop::config::namenode_hostname") %>:50070/webhdfs/v1/
  +      webhdfs_url=http://<%= scope.lookupvar("cdh4::hadoop::config::namenode_hostname") %>:50070/webhdfs/v1/
   
         # Settings about this HDFS cluster. If you install HDFS in a
         # different location, you need to set the following.
  
positive.code: 
      [[[default]]]
        # Enter the host on which you are running the Hadoop JobTracker
        jobtracker_host=<%= scope.lookupvar("analytics::hadoop::config::namenode_hostname") %>
        # The port where the JobTracker IPC listens on
        jobtracker_port=8021
        # Thrift plug-in port for the JobTracker
  
negative.code: 
      [[[default]]]
        # Enter the host on which you are running the ResourceManager
        resourcemanager_host=<%= scope.lookupvar("cdh4::hadoop::config::namenode_hostname") %>
        # The port where the ResourceManager IPC listens on
        resourcemanager_port=8032
        # Whether to submit jobs to this cluster
  