couchdb - bigtable，cassandra，simpledb，dynamo，couchdb，hypertable，riak和hbase，它们有什么共同点？

Question

抱歉，这个问题有点主观。我是“可以存储”，“分布式存储”或类似概念的新手。我真的很想知道它们有什么共同点，并希望对它们全部进行概述。如果要编写与此类似的产品，我需要准备什么？

Answer 1

NoSQL Database site总结了这样的概念:

Next Generation Databases mostly address some of the points: being non-relational, distributed, open-source and horizontal scalable. The original intention has been modern web-scale databases. The movement began early 2009 and is growing rapidly. Often more characteristics apply as: schema-free, replication support, easy API, eventually consistency, and more. So the misleading term "nosql" (the community now translates it mostly with "not only sql") should be seen as an alias to something like the definition above.

该站点还维护 an archive of articles on NoSQL databases。他们中的大多数似乎专注于特定产品，但是有一些更一般的概述。如果您认真构建自己的数据库，那么 Design Patterns for Distributed Non-Relational Databases可以很好地汇总您需要考虑的内容。