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消息按时间分区，以某时间点&消息量为界限 将消息记录花费为冷分区、热分区 冷分区：历史特别悠久的消息，客户端本地保存历史消息，如果丢失查找冷分区，需要加载很久用户也能接受，分区容量可以很大 热分区：最近的消息，控制分区容量在一定范围内，保证就算db查找也能很快返回给用户
同时可以基于userId做分片、甚至某业务字段二次分片？
The text was updated successfully, but these errors were encountered:
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消息按时间分区，以某时间点&消息量为界限
将消息记录花费为冷分区、热分区
冷分区：历史特别悠久的消息，客户端本地保存历史消息，如果丢失查找冷分区，需要加载很久用户也能接受，分区容量可以很大
热分区：最近的消息，控制分区容量在一定范围内，保证就算db查找也能很快返回给用户
同时可以基于userId做分片、甚至某业务字段二次分片？
The text was updated successfully, but these errors were encountered: