{
  "timestamp": "2026-04-04T04:32:38.959Z",
  "summary": {
    "total": 5,
    "alive": 4,
    "dead": 1,
    "status": "PARTIAL_OK"
  },
  "preferred_upstream_id": 0,
  "details": [
    {
      "server_id": 0,
      "alive": false,
      "status": 502,
      "latency": 146,
      "error": "Server Error"
    },
    {
      "server_id": 1,
      "alive": true,
      "status": 200,
      "latency": 100,
      "error": null
    },
    {
      "server_id": 2,
      "alive": true,
      "status": 200,
      "latency": 210,
      "error": null
    },
    {
      "server_id": 3,
      "alive": true,
      "status": 200,
      "latency": 291,
      "error": null
    },
    {
      "server_id": 4,
      "alive": true,
      "status": 200,
      "latency": 100,
      "error": null
    }
  ]
}