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https://issues.apache.org/jira/browse/CASSANDRA-12629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alwyn Davis updated CASSANDRA-12629:
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Attachment: 12629-trunk.patch
Patch is for trunk.
> All Nodes Replication Strategy
> ------------------------------
>
> Key: CASSANDRA-12629
> URL: https://issues.apache.org/jira/browse/CASSANDRA-12629
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Alwyn Davis
> Priority: Minor
> Fix For: 3.x
>
> Attachments: 12629-3.7.patch, 12629-trunk.patch
>
>
> When adding a new DC, keyspaces must be manually updated to replicate to the
> new DC. This is problematic for system_auth, as it cannot achieve LOCAL_ONE
> consistency (for a non-cassandra user), until its replication options have
> been updated on an existing node.
> Ideally, system_auth could be set to an "All Nodes strategy" that will
> replicate it to all nodes, as they join the cluster. It also removes the
> need to update the replication factor for system_auth when adding nodes to
> the cluster to keep with the recommendation of RF=number of nodes (at least
> for small clusters).
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