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https://issues.apache.org/jira/browse/HBASE-25838?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang resolved HBASE-25838.
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Fix Version/s: 2.3.6
2.4.3
2.5.0
3.0.0-alpha-1
Hadoop Flags: Reviewed
Resolution: Fixed
Pushed to branch-2.3+.
Thanks [~niuyulin] for reviewing.
> Use double instead of Double in StochasticLoadBalancer
> ------------------------------------------------------
>
> Key: HBASE-25838
> URL: https://issues.apache.org/jira/browse/HBASE-25838
> Project: HBase
> Issue Type: Sub-task
> Components: Balancer, Performance
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Fix For: 3.0.0-alpha-1, 2.5.0, 2.4.3, 2.3.6
>
>
> {code}
> // to save and report costs to JMX
> private Double curOverallCost = 0d;
> private Double[] tempFunctionCosts;
> private Double[] curFunctionCosts;
> {code}
> It seems we never do null check on these field or the elements, so I do not
> see any reason we should use Double here. Just use double instead.
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