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https://issues.apache.org/jira/browse/HBASE-26649?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Huaxiang Sun resolved HBASE-26649.
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Fix Version/s: 2.5.0
3.0.0-alpha-3
2.4.13
Release Note: When setting 'hbase.locator.meta.replicas.mode' to
"LoadBalance" at HBase client, RegionLocator#getAllRegionLocations() now load
balances across all Meta Replica Regions. Please note, results from
non-primary meta replica regions may contain stale data.
Resolution: Fixed
> Support meta replica LoadBalance mode for
> RegionLocator#getAllRegionLocations()
> -------------------------------------------------------------------------------
>
> Key: HBASE-26649
> URL: https://issues.apache.org/jira/browse/HBASE-26649
> Project: HBase
> Issue Type: Improvement
> Components: meta replicas
> Affects Versions: 2.4.9
> Reporter: Huaxiang Sun
> Assignee: Huaxiang Sun
> Priority: Major
> Fix For: 2.5.0, 3.0.0-alpha-3, 2.4.13
>
>
> When HBase application restarts, its meta cache is empty. Normally, it will
> fill the meta cache one region at a time by scanning the meta region. This
> will cause huge pressure to the region server hosting meta during application
> restart.
> It can prefetching all region locations by calling
> RegionLocator#getAllRegionLocations().Meta replica LoadBalance mode is
> support in 2.4, it will be nice to load balance
> RegionLocator#getAllRegionLocations() to all meta replica regions so batch
> scan can spread across all meta replica regions.
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