4 / 4 Multi-Region & Geo-Distribution

Odd Number Club

A consensus-backed metadata store currently runs five replicas split across two regions, three in one and two in the other. The team wants to survive the loss of an entire region without losing write availability. What must change?

A

Lower the write quorum to two replicas so the smaller region can commit on its own during a partition

B

Spread the replicas across three failure regions, so a majority quorum still exists when any single region is lost

C

Move to an even split of replicas across the two regions so neither side can be outvoted by the other

D

Add two more replicas to the smaller region, raising the cluster to seven so it tolerates three failures