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. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira