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https://issues.apache.org/jira/browse/HBASE-23659?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guanghao Zhang resolved HBASE-23659.
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Resolution: Fixed
> BaseLoadBalancer#wouldLowerAvailability should consider region replicas
> -----------------------------------------------------------------------
>
> Key: HBASE-23659
> URL: https://issues.apache.org/jira/browse/HBASE-23659
> Project: HBase
> Issue Type: Bug
> Reporter: Guanghao Zhang
> Assignee: Guanghao Zhang
> Priority: Major
> Fix For: 3.0.0, 2.3.0, 2.2.3
>
>
> Found this issue when try to fix the flaky unit test TestRegionReplicaSplit.
> It may fail as
> java.lang.AssertionError: Splitted regions should not be assigned to same
> region server.
> See
> [https://builds.apache.org/job/HBase-Flaky-Tests/job/master/5227/testReport/junit/org.apache.hadoop.hbase.master.assignment/TestRegionReplicaSplit/testRegionReplicaSplitRegionAssignment/].
>
> Now wouldLowerAvailability method only consider the primary regions. The
> replica region can't assign to same server with primary region. But can be
> assigned to same server with other replica regions.
>
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