# Balancing
+ Region balancing: Balance of the data at rest
  + Apply configuration changes to balance regions
  + Configuration changes will update the configuration version of the regarding region
  + Move data around
+ Load balancing: Balance of the load (`leader`)
  + Imbalance `leader` or regions distribution can lead to `write/read` skew
  + Pick a follower to start election and hereafter transfer the region `leader`
  + Transferring `leader` implies no data movement
  + Sometimes need to split a region first

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