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文档数据库服务 DDS

完全兼容MongoDB协议，高可用、高可靠、安全的在线文档数据库服务

高可用

数据库存储支持三副本冗余，数据库数据可靠性高，备份数据可靠性高。

弹性伸缩

集群、副本集实例支持弹性伸缩。集群最多可支持 32 个分片，副本集最多可扩至 7 节点

备份恢复

支持库表级的时间点备份恢复，备份保存周期高达 732 天

可视化管理

管理员可根据监控和日志等信息，对数据库引擎参数自定义设置，达到数据库的灵活管理

不同数据库类型，满足核心场景需求

副本集
集群

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为什么选择华为云文档数据库 DDS

实例类型灵活多样，满足不同业务场景需要

集群实例：提供 mongos、shard、和 config 三类节点。可自由选择 mongos 和 shard 的节点个数和配置，组建服务性能不同的集群实例
副本集实例：自动搭建副本集架构，可直接操作 Primary 和 Secondary 节点。提供高可用、容灾切换等高级功能，使用过程中对应用完全透明