{
    "@timestamp": "2017-10-12T08:05:34.853Z",
    "beat": {
        "hostname": "host.example.com",
        "name": "host.example.com"
    },
    "metricset": {
        "host": "postgresql:5432",
        "module": "postgresql",
        "name": "bgwriter",
        "rtt": 115
    },
    "postgresql": {
        "bgwriter": {
            "buffers": {
                "allocated": 141,
                "backend": 0,
                "backend_fsync": 0,
                "checkpoints": 0,
                "clean": 0,
                "clean_full": 0
            },
            "checkpoints": {
                "requested": 0,
                "scheduled": 2,
                "times": {
                    "sync": {
                        "ms": 0
                    },
                    "write": {
                        "ms": 0
                    }
                }
            },
            "stats_reset": "2017-12-07T07:20:38.413Z"
        }
    }
}