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https://issues.apache.org/jira/browse/HBASE-15515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15210681#comment-15210681
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Ted Yu commented on HBASE-15515:
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Related tests passed.
{code}
Tests run: 4, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 488.208 sec -
in org.apache.hadoop.hbase.master.balancer.TestStochasticLoadBalancer2
{code}
> Improve LocalityBasedCandidateGenerator in Balancer
> ---------------------------------------------------
>
> Key: HBASE-15515
> URL: https://issues.apache.org/jira/browse/HBASE-15515
> Project: HBase
> Issue Type: Bug
> Affects Versions: 2.0.0, 1.3.0
> Reporter: Guanghao Zhang
> Assignee: Guanghao Zhang
> Priority: Minor
> Fix For: 2.0.0
>
> Attachments: HBASE-15515-v1.patch, HBASE-15515.patch
>
>
> There are some problems which need to fix.
> 1. LocalityBasedCandidateGenerator.getLowestLocalityRegionOnServer should
> skip empty region.
> 2. When use LocalityBasedCandidateGenerator to generate Cluster.Action, it
> should add random operation instead of pickLowestLocalityServer(cluster).
> Because the search function may stuck here if it always generate the same
> Cluster.Action.
> 3. getLeastLoadedTopServerForRegion should get least loaded server which have
> better locality than current server.
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