hesela.devWrite quorum
A write quorum is a protocol-approved set of replicas whose acknowledgements satisfy the requirement for completing a write.
W is the acknowledgement threshold, not the number of destinations. Cassandra sends writes to all replicas, then waits for the configured consistency level. [1] An acknowledgement's persistence meaning is a separate contract. [2]
Relations
- related
- read-quorum, quorum-intersection
Limitations
- A write timeout does not establish that no replica applied the mutation. [2]