Cassandra
Cassandra 是一款分布式的 NoSQL 数据库，旨在实现高可用性和可伸缩性。它特别适用于需要大规模数据存储和高并发读写的场景。
优势：
分布式架构： Cassandra 可以在多个节点上存储数据，具有出色的可伸缩性，适用于大规模数据存储。
高可用性： Cassandra 具备自动故障检测和恢复机制，可以保证高可用性。
快速读写： Cassandra 的设计注重高并发读写，适用于需要低延迟操作的场景。
劣势：
不支持复杂查询： Cassandra 不支持复杂的查询操作，对于大量的连接和聚合操作，可能不如
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