Thursday, October 10, 2013


I've been studying cassandra recently and would like to share my findings.

What is cassandra?

Apache Cassandra is an open source, distributed, decentralized, elastically scalable, highly available, fault-tolerant, tuneably consistent, column-oriented database.

Cassandra is an open source distributed database management system. It is designed to handle very large amounts of data spread out across many commodity servers while providing a highly available service with no single point of failure.

Cassandra provides a structured key-value store with eventual consistency. Keys map to multiple values, which are grouped into column families. The column families are fixed when a Cassandra database is created, but columns can be added to a family at any time. Furthermore, columns are added only to specified keys, so different keys can have different numbers of columns in any given family. The values from a column family for each key are stored together, making Cassandra a hybrid between a column-oriented DBMS and a row-oriented store.

where is cassandra use?
well, you can store whatever you want, for example, we used cassandra to store the call detail record.

where do i get started to learn cassandra?
i suggest you start with a cassandra book for beginner or person coming from RDBMS. Because there are new terminology with is introduced in cassandra. When you get a hold on cassandra, you should really get the source from apache cassandra website and they have a great information in their wiki page.

where do i get help if i have question?
they have mailing list where you can find if your question is asked before or you can contact me. :-)

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