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https://issues.apache.org/jira/browse/CASSANDRA-14723?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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C. Scott Andreas updated CASSANDRA-14723:
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Component/s: Coordination
> Increase write availability during range movements
> --------------------------------------------------
>
> Key: CASSANDRA-14723
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14723
> Project: Cassandra
> Issue Type: Improvement
> Components: Coordination
> Reporter: Benedict
> Priority: Major
> Fix For: 4.x
>
>
> If pending ranges were to be paired with their ‘natural’ replicas, instead of
> requiring QUORUM+#pending, we could instead require QUORUM, but count both
> owners of the pending range as a combined 1 - where they are only counted if
> both return success.
> As an example, in a cluster with RF=3, a pending range movement would
> currently require 3 nodes to respond, so must include at least one of the
> pending nodes. Under the proposed scheme, the 2 non-participating nodes
> could respond as normal to reach a QUORUM, not requiring either of the
> pending nodes to respond.
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