Apache Cassandra

• Apache Cassandra
  Free and open-source distributed NoSQL database management system, developed by Facebook.
• What is Cassandra？
• Java 8
• Cassandra 最新版 3.11.2；

Operating Cassandra

cql：the Cassandra Query Language.

• CQL version 3.
• CQL offers a model close to SQL in the sense that data is put in tables containing rows of columns.
• There is no correlation between Cassandra release versions and the CQL language version.

cqlsh: the CQL shell.

• cqlsh is a command line shell for interacting with Cassandra through CQL.
• 需要 Python 版本 2.7。

DB Ranking

• DB-Engines Ranking；
• ACID；
  ACID：原子性（atomicity，或称不可分割性）、一致性（consistency）、隔离性（isolation，又称独立性）、持久性（durability）。
• CAP theorem；

Authors

• Avinash Lakshman.
• How did Avinash Lakshman get recruited to Facebook?
• Why I like the Cassandra distributed database by JONATHAN ELLIS?
  Cassandra implements a sort of hybrid between Dynamo and Bigtable. It takes its distribution algorithm from Dynamo and its data model from Bigtable -- sort of the best of both worlds.
• Dynamo.
  Dynamo is the name given to a set of techniques that when taken together can form a highly available key-value structured storage system or a distributed data store.
• Cassandra - A Decentralized Structured Storage System；
• Cassandra - A Decentralized Structured Storage System：Presented by Besat Kassaie；
• Database Scalability；
• NoSQL；