ambari/contrib/addons/test/ui/json/mrSummary.json

{
    "mapreduce": {
        "service_type": "MAPREDUCE",
        "jobtracker_addr": "jthost:50030",
        "trackers_total": 10,
        "trackers_live": 7,
        "trackers_graylisted": 1,
        "trackers_blacklisted": 1,
        "trackers_excluded": 1,
        "start_time": 23235351,
        "version": "1.0.0, r12345",
        "memory_heap_committed": 1004242423,
        "memory_heap_total": 8003242423,
        "map_task_capacity": 32,
        "reduce_task_capacity": 8,
        "average_node_capacity": 5,
        "job_total_submissions": 6,
        "job_total_completions": 3,
        "running_map_tasks": 5,
        "running_reduce_tasks": 5,
        "occupied map slots": 3,
        "occupied reduce slots": 4,
        "reserved map slots": 3,
        "reserved reduce slots": 5
    }
}