{
    "@timestamp": "2017-10-12T08:05:34.853Z",
    "beat": {
        "hostname": "host.example.com",
        "name": "host.example.com"
    },
    "ceph": {
        "osd_tree": {
            "children": "-2",
            "father": "",
            "id": -1,
            "name": "default",
            "type": "root",
            "type_id": 10
        }
    },
    "metricset": {
        "host": "ceph:5000",
        "module": "ceph",
        "name": "osd_tree",
        "rtt": 115
    }
}