3.8.2. 单个 Redis 配置选项
以下配置适用于具有可选只读副本的单个 Redis 实例：
DATA_MODEL_CACHE_CONFIG:
engine: redis
redis_config:
primary:
host: <host>
port: <port>
password: <password if ssl is true>
ssl: <true | false >
replica:
host: <host>
port: <port>
password: <password if ssl is true>
ssl: <true | false >
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