Huaxiang Sun created HBASE-24633:
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Summary: Remove data locality and StoreFileCostFunction for
replica regions out of balancer's cost calculation
Key: HBASE-24633
URL: https://issues.apache.org/jira/browse/HBASE-24633
Project: HBase
Issue Type: Improvement
Components: Balancer
Affects Versions: 2.3.0
Reporter: Huaxiang Sun
Assignee: Huaxiang Sun
We found one of the clusters with read replica enabled always balance lots of
replica regions. going through the balancer's cost functions, found that data
locality and StoreFileCost have same multiplier for both primary and replica
regions. That is something we can improve. Data locality for replica regions
should not be a dominant factor for balancer. We can either remove it out of
balancer's picture for now and give it a small multiplier.
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