What are the consistency levels for write operations in Cassandra?
Answer / Mohd Waseem Akram
Cassandra provides multiple consistency levels for write operations. They are: One (any replica can commit a write), Two (a quorum of replicas must acknowledge the write), Three (a majority of replicas must acknowledge the write), AnyQuorum (any set of replicas which meet or exceed the replication factor acknowledged the write, useful for read-heavy workloads), LocalOne (write is committed immediately, but not guaranteed to be propagated to all replicas), LocalQuorum (write is acknowledged by a majority of replicas in the datacenter where the write was made), and Consistent (a majority of replicas outside of the write's datacenter also acknowledge the write)
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