anchor.diff:  
   + Response 200 (application/json)
   
  -       {
  +        {
            "alarms": [
  -           {
  +            {
                "scalingPolicyId": null,
                "period": 10,
                "comparisonOperator": "GREATER_THAN",
  
positive.code: Periscope can work with any Hadoop 2/ YARN cluster provisioned with Apache Ambari, and supports any YARN application.
  
  ##Clusters [/clusters/{id}]
  ###Add a cluster to be monitored by Periscope[POST]
  Add a Hadoop cluster to be monitored by Periscope. Note that Periscope does not require any pre-installation of components on cluster nodes. To link a Hadoop cluster with Periscope the only required this is the Apache Ambari REST API endpoint.
  
  + Parameters
      + id (required String `id`) ... The id of the cluster to be monitored.
  
negative.code:         ]
  
  #Group Alarms
  An alarm watches a metric over a specified time period, and used by one or more action or scaling policy based on the value of the metric relative to a given threshold over a number of time periods.
  
  ##Alarm [/clusters/{clusterId}/alarms]
  ###Create an alarm for a cluster [POST]
  