redis关闭时服务健康检查api响应503。

{
    "status": "DOWN",
    "details": {
        "diskSpace": {
            "status": "UP",
            "details": {
                "total": 250790436864,
                "free": 95412813824,
                "threshold": 10485760
            }
        },
        "db": {
            "status": "UP",
            "details": {
                "database": "PostgreSQL",
                "hello": 1
            }
        },
        "refreshScope": {
            "status": "UP"
        },
        "redis": {
            "status": "DOWN",
            "details": {
                "error": "org.springframework.data.redis.connection.PoolException: Could not get a resource from the pool; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to localhost:6379"
            }
        }
    }
}

但实际上，当redis关闭时，服务是可用的。
redis状态不能影响服务状态吗？我还需要查看healthcheckapi中的redis细节。