nosql - Is Cassandra suitable to use as a primary data store? -

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I am evaluating a storage platform for an upcoming project and continue to come back to Kassandra. The amount of any data for this project is unacceptable so far we have used a relational database (Microsoft SQL Server), but the data is so diverse and large that it is used to store and query An issue has become.

Cassandra stores enough data to use as primary form? Or can it be used only to speed up existing data?

Unethical: Yes, Twitter, Digg, Ooyala, SimpleGeo, Mahalo, and others are using Or going to Cassandra for a primary data store ().

Technical: Yes; In addition to supporting replication (including multiple datasets), each Cassandra node writes to ensure a fsync'd log is durable; From there it is written in the SSTAB which is irreversible till compaction (which is the addition of several SSTABLES for GC versions). Snapshot is supported at any time, including automatic snapshot-pre-compaction.


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