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From "Jonathan Ellis (JIRA)" <>
Subject [jira] Created: (CASSANDRA-1530) More-efficient cross-DC replication
Date Wed, 22 Sep 2010 01:39:33 GMT
More-efficient cross-DC replication

                 Key: CASSANDRA-1530
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
            Reporter: Jonathan Ellis
             Fix For: 0.7.1

Currently the coordinator node sends writes to each replica.  In multi-dc situations, it would
be more efficient to have the coordinator talk to a single node in each DC, which would forward
the writes to the other replicas local to it.  (All replicas would continue to ack to the

Shouldn't be difficult to add a header to RMVH saying "consult the Strategy to see who else
is local to you and queue it off to them as well."

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