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  1. Cassandra
  2. CASSANDRA-2338

C* consistency level needs to be pluggable

    Details

    • Type: New Feature
    • Status: Resolved
    • Priority: Low
    • Resolution: Won't Fix
    • Fix Version/s: None
    • Component/s: None
    • Labels:
      None

      Description

      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 strategy where LOCAL_QUORUM is used for the local DC and at least one in a remote DC (and/or at least in each remote DC).

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              • Assignee:
                Unassigned
                Reporter:
                mdennis Matthew F. Dennis
              • Votes:
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                • Created:
                  Updated:
                  Resolved: