ambari/ambari-web/app/assets/data/services/metrics/mapreduce/map_slots.json

{
  "href" : "http://ambari/clusters/SrimanthAmbari/services/MAPREDUCE/components/JOBTRACKER?fields=metrics/mapred/jobtracker/occupied_map_slots[1351213550,1351217148,60],metrics/mapred/jobtracker/reserved_map_slots[1351213550,1351217148,60]",
  "metrics" : {
    "mapred" : {
      "jobtracker" : {
        "reserved_map_slots" : "[[0.0,1351213560],[0.0,1351213920],[0.0,1351214280],[0.0,1351214640],[0.0,1351215000],[0.0,1351215360],[0.0,1351215720],[0.0,1351216080],[0.0,1351216440],[0.0,1351216800],[0.0,1351217160]]",
        "occupied_map_slots" : "[[0.0,1351213560],[0.0,1351213920],[0.0,1351214280],[0.0,1351214640],[0.0,1351215000],[0.0,1351215360],[0.0,1351215720],[0.0,1351216080],[0.0,1351216440],[0.0,1351216800],[0.038888888889,1351217160]]"
      }
    }
  },
  "ServiceComponentInfo" : {
    "cluster_name" : "SrimanthAmbari",
    "component_name" : "JOBTRACKER",
    "service_name" : "MAPREDUCE"
  }
}