{
  "dashboard": {
    "id": null,
    "title": "FischerX 应用监控",
    "tags": ["fischerx", "application"],
    "timezone": "browser",
    "schemaVersion": 38,
    "version": 1,
    "refresh": "5s",
    "panels": [
      {
        "title": "请求速率 (QPS)",
        "type": "stat",
        "targets": [
          {
            "expr": "sum(rate(http_requests_total[1m])) by (job)",
            "legendFormat": "{{job}}"
          }
        ],
        "fieldConfig": {
          "defaults": {
            "unit": "short"
          }
        },
        "gridPos": { "x": 0, "y": 0, "w": 6, "h": 4 }
      },
      {
        "title": "错误率",
        "type": "stat",
        "targets": [
          {
            "expr": "sum(rate(http_requests_total{status=~\"5..\"}[5m])) by (job) / sum(rate(http_requests_total[5m])) by (job) * 100",
            "legendFormat": "{{job}}"
          }
        ],
        "fieldConfig": {
          "defaults": {
            "thresholds": {
              "mode": "absolute",
              "steps": [
                { "color": "green", "value": null },
                { "color": "yellow", "value": 3 },
                { "color": "red", "value": 5 }
              ]
            },
            "unit": "percent"
          }
        },
        "gridPos": { "x": 6, "y": 0, "w": 6, "h": 4 }
      },
      {
        "title": "P95 延迟",
        "type": "stat",
        "targets": [
          {
            "expr": "histogram_quantile(0.95, sum(rate(http_request_duration_seconds_bucket[5m])) by (le, job))",
            "legendFormat": "{{job}}"
          }
        ],
        "fieldConfig": {
          "defaults": {
            "thresholds": {
              "mode": "absolute",
              "steps": [
                { "color": "green", "value": null },
                { "color": "yellow", "value": 0.5 },
                { "color": "red", "value": 1 }
              ]
            },
            "unit": "s"
          }
        },
        "gridPos": { "x": 12, "y": 0, "w": 6, "h": 4 }
      },
      {
        "title": "HTTP请求分布",
        "type": "graph",
        "targets": [
          {
            "expr": "sum(rate(http_requests_total[5m])) by (status)",
            "legendFormat": "{{status}}"
          }
        ],
        "gridPos": { "x": 0, "y": 4, "w": 12, "h": 6 }
      },
      {
        "title": "延迟分布",
        "type": "graph",
        "targets": [
          {
            "expr": "histogram_quantile(0.5, sum(rate(http_request_duration_seconds_bucket[5m])) by (le, route))",
            "legendFormat": "P50 - {{route}}"
          },
          {
            "expr": "histogram_quantile(0.95, sum(rate(http_request_duration_seconds_bucket[5m])) by (le, route))",
            "legendFormat": "P95 - {{route}}"
          },
          {
            "expr": "histogram_quantile(0.99, sum(rate(http_request_duration_seconds_bucket[5m])) by (le, route))",
            "legendFormat": "P99 - {{route}}"
          }
        ],
        "fieldConfig": {
          "defaults": {
            "unit": "s"
          }
        },
        "gridPos": { "x": 12, "y": 4, "w": 12, "h": 6 }
      }
    ]
  }
}