Move streams data to too many nodes.
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                 Key: CASSANDRA-3041
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3041
             Project: Cassandra
          Issue Type: Improvement
          Components: Core
    Affects Versions: 0.8.4, 0.7.8
            Reporter: Nick Bailey
             Fix For: 1.0


When you decommission a node, it only streams data to the node that is just now 
gaining responsibility for the node's primary range.

When you move a node it streams data to every node that is responsible for the 
node's primary range. This is way more than it needs to, and could be bad in 
multi-dc setups. We should absolutely use this bug as a chance/reason to better 
unify that code, since move should be doing the same thing decom does.

This might be worth backporting to 0.8 as well.

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