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https://issues.apache.org/jira/browse/HBASE-14110?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Purtell updated HBASE-14110:
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Fix Version/s: 1.2.0
1.2 isn't frozen yet according to [~busbey]. Adding that fix version because I
think this fixes a likely operational wart.
> Add CostFunction for balancing primary region replicas
> ------------------------------------------------------
>
> Key: HBASE-14110
> URL: https://issues.apache.org/jira/browse/HBASE-14110
> Project: HBase
> Issue Type: Improvement
> Reporter: Ted Yu
> Assignee: Ted Yu
> Fix For: 2.0.0, 1.2.0, 1.3.0
>
> Attachments: 14110-v1.txt
>
>
> Currently replicas for the same region are spread across region servers.
> However, one region server may serve disproportionately high number of
> primary region replicas. This has been observed in production cluster.
> This issue adds PrimaryRegionCountSkewCostFunction which facilitates
> balancing primary region replicas evenly across region servers.
> Thanks to Enis for fruitful discussion.
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