这是弱一致性的一种特殊形式；存储系统保证如果对象没有新的更新，最终所有访问都将返回最后更新的值。

This is a specific form of weak consistency; the storage system guarantees that if no new updates are made to the object, eventually all accesses will return the last updated value.

youdao

只有部分数据副本参与更新操作，且/或作为读操作的一部分与其它副本进行联系时，就会出现弱/最终一致性。

Weak/eventual consistency happens when not all data replicas participate in the update operation and/or contacted as part of read operation.

youdao

解决方案 有：sharding （基于主键值讲数据表分散到多个数据库中），复制，利用弱语义一致性的简化数据库。

Solutions include sharding (splitting up a table across multiple databases based on the primary key), replication, and usage of simplified databases with weakened consistency semantics.

youdao