Apache Hbase Review

A key-value database based on HDFS which relies on zookeeper to manage its cluster. Oh, it stoges data by column, which is better to timely insert and random query, especially for big, big tables.

You can learn Architecture of Hbase Cluster(Region, HMaster…), CRUD Logic from this post.

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Apache Cassandra Review

Not like any other database(nosql), Casandra is a p2p or decentralization colum based NoSQL.

And because of this very type, it’s necessary to talk about its Design of Storage Model(column family), Read-Write Strategy(includes consistent hash).

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