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https://issues.apache.org/jira/browse/CASSANDRA-2970?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis resolved CASSANDRA-2970.
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Resolution: Duplicate
duplicate of CASSANDRA-2506
> Create separate read repair settings for intra- versus inter- datacenter
> ------------------------------------------------------------------------
>
> Key: CASSANDRA-2970
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2970
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Jeremy Hanna
> Priority: Minor
>
> When doing read repair, it doesn't take into account the datacenter where the
> replicas are. It simply does a repair based on the read repair chance.
> Since multi-DC configurations would benefit from a lower chance between DC,
> it seems reasonable to have a separate setting for read repair between DCs
> than for within the DC.
> Perhaps there could be a single property still, which would default both
> inter and intra for the sake of simple scenarios and backwards compatibility.
> Then if a more specific setting is specified (read_repair_chance_global or
> read_repair_chance_local), that would be used.
> I'm not sure if this would complicate matters too much, but it builds on
> CASSANDRA-982 and CASSANDRA-1530 to help with efficiency between datacenters,
> especially in the case of an analytics cluster versus a realtime cluster -
> making them tunably more independent.
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