重要RDS、PolarDB、Redis、MongoDB、DAS础版实例只有一个数据库节点，没有备节点作为热备份，因此当该节点意外宕机或者执行重启实例，变更配置、版本升级等任务时，会出现较长时间的不可用。如果业务对数据库的可用性要求较高，不建议使用基础版实例，可选择其他系列(如高可用版)，部分基础版实例也支持升级为高可用版。这个较长时间是多久？

问答 2023-01-09 来自：开发者社区

已购买专业版数据库自治服务DAS删除rds实例能否继续添加

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更新时间 2024-07-26 21:49:17

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