{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/CacheMetrics",
  "title": "CacheMetrics",
  "type": "object",
  "description": "Data cache and procedure cache performance statistics for the SAP ASE server.",
  "properties": {
    "serverId": {
      "type": "string",
      "description": "Unique identifier of the server."
    },
    "timestamp": {
      "type": "string",
      "format": "date-time",
      "description": "Timestamp when metrics were captured."
    },
    "dataCacheHitRatio": {
      "type": "number",
      "format": "double",
      "description": "Percentage of data cache hits versus total requests."
    },
    "procedureCacheHitRatio": {
      "type": "number",
      "format": "double",
      "description": "Percentage of procedure cache hits versus total requests."
    },
    "namedCaches": {
      "type": "array",
      "description": "Performance metrics for each named data cache.",
      "items": {
        "type": "object",
        "properties": {
          "name": {
            "type": "string",
            "description": "Name of the data cache."
          },
          "hitRatio": {
            "type": "number",
            "format": "double",
            "description": "Cache hit ratio for this named cache."
          },
          "sizeMB": {
            "type": "number",
            "format": "double",
            "description": "Total size of this named cache in megabytes."
          },
          "usedMB": {
            "type": "number",
            "format": "double",
            "description": "Space currently used in this cache in megabytes."
          }
        }
      }
    }
  }
}