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The "VirtualNodes/Balance" page has been changed by EricEvans:
http://wiki.apache.org/cassandra/VirtualNodes/Balance?action=diff&rev1=1&rev2=2

Comment:
hashing out implementation proposal

  
  When migrating a legacy cluster with one-token-per-node to virtual nodes, the 
existing range is carved up into `num_tokens` new ranges.  These new ranges are 
still contiguous however, and a means of randomizing their placement is needed.
  
+ <<Anchor(implementation)>>
+ == Implementation (Draft) ==
+ === Nodes / Cluster ===
+ The most straightforward method of effecting ownership is a token move (i.e. 
relocating a range from one node to another).  Exposing this with JMX would 
allow implementing all of the required operations client-side.
+ 
+ === User Interface ===
+ 
+ {{{
+ $ nodetool balance
+ }}}
+ 
+ {{{
+ $ nodetool shuffle
+ }}}
+ 
+ {{{
+ $ nodetool trim
+ }}}
+ 

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