C* needs a LOCAL_QUORUM_PLUS_ONE_REMOTE consistency level
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Key: CASSANDRA-2338
URL: https://issues.apache.org/jira/browse/CASSANDRA-2338
Project: Cassandra
Issue Type: New Feature
Reporter: Matthew F. Dennis
Priority: Minor
for cases where people want to run C* across multiple DCs for disaster recovery
et cetera where normal operations only happen in the first DC (e.g. no
writes/reads happen in the remove DC under normal operation) neither
LOCAL_QUORUM or EACH_QUORUM really suffices.
Consider the case with RF of DC1:3 DC2:2
LOCAL_QUORUM doesn't provide any guarantee that data is in the remote DC.
EACH_QUORUM requires that both nodes in the remote DC are up.
It would be useful in some situations to be able to specify a LOCAL_QUORUM (for
local consistency) + "at least one remote" for durability/disaster proofing.
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