Clara Xiong created HBASE-26337:
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             Summary: Optimization for weighted random generators
                 Key: HBASE-26337
                 URL: https://issues.apache.org/jira/browse/HBASE-26337
             Project: HBase
          Issue Type: Improvement
          Components: Balancer
            Reporter: Clara Xiong
            Assignee: Clara Xiong


 urrently we use four move candidate generators and pick one randomly for every 
move with even probability, all with optimization associated with a certain 
group of cost functions. We can assign weight for the random picking of 
generators based on balancing pressure on each group. 



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