CODEWITHSUNDEEP
cassandrahigh-availabilityconsistencycap-theorem
rogue-one
rogue-one

Reputation: 11587

Cassandra: Geo Redundancy and consistency

Consider a Cassandra instance deployed across two data centers for geo-redundancy.

Is it possible configure this cluster with a consistency level such that we get both Geo-redundancy (availablity even if one of the entire data-center takes a downtime and the instance continues to operate with one data center) and full consistent read and write. Does this ask violate the CAP theorem?

Upvotes: 1

Views: 621

Answers (1)

Brandon
Brandon

Reputation: 39192

No you can't (otherwise you'd violate CAP).

If you want fully consistent read/writes across data centers then you will have to give up availability or partition tolerance.

Upvotes: 1

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