Cassandra - Consistency

Data Modeling Chebotko Logical

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This article talks about consistency in Cassandra.

Level

The consistency level represents the minimum number of nodes that must acknowledge a read or write operation to the coordinator before the operation is considered successful.

Cassandra is by default an AP (Available Partition-tolerant) database (ie always on) but you can configure the consistency on a per-query basis.

In a 3 nodes architecture, you may ask at minimal 2.







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