查询缓存信息

{
    "aofEnabled": true,
    "connectedClients": 0,
    "dbCount": 0,
    "expiresKeys": 0,
    "hitRate": 0,
    "instantaneousOpsPerSec": 0,
    "keyTypeDistribution": [
        {
            "name": "string",
            "value": 0
        }
    ],
    "keyspaceHits": 0,
    "keyspaceMisses": 0,
    "maxmemoryHuman": "string",
    "memFragmentationRatio": 0,
    "mode": "string",
    "rdbLastSaveTime": 0,
    "tcpPort": 0,
    "totalKeys": 0,
    "uptime": 0,
    "usedMemory": 0,
    "usedMemoryHuman": "string",
    "usedMemoryPeakHuman": "string",
    "version": "string"
}