Huaxiang Sun created HBASE-24643:
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Summary: Replace Cluster#primariesOfRegionsPerServer from int
array to treemap
Key: HBASE-24643
URL: https://issues.apache.org/jira/browse/HBASE-24643
Project: HBase
Issue Type: Improvement
Components: Balancer
Affects Versions: 2.3.0
Reporter: Huaxiang Sun
Assignee: Huaxiang Sun
Currently, primariesOfRegionsPerServer is an int array, moveRegion does heavy
work by searching the array (linearly) and insert/remove an element requires
allocating/copying the whole array.
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