The shard ID will be mapped with respect to the virtual shard ID map configured in the later steps.
碎片ID将相对于后续步骤中配置的虚拟碎片ID映射予以映射。
In case a virtual shard id map is not provided (it is optional), it is defaulted to the physical shard id map.
如果未提供虚拟碎片ID映射(可选)，默认为物理碎片id映射。
This application also USES he virtual shard option to take care of future database scalability requirements.
该应用程序还使用虚拟碎片选项处理将来的数据库可伸缩性需求。
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