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https://issues.apache.org/jira/browse/HBASE-21943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang reopened HBASE-21943:
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Fix 2.1 compile error.
> The usage of RegionLocations.mergeRegionLocations is wrong for async client
> ---------------------------------------------------------------------------
>
> Key: HBASE-21943
> URL: https://issues.apache.org/jira/browse/HBASE-21943
> Project: HBase
> Issue Type: Bug
> Components: asyncclient, Client
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Critical
> Fix For: 3.0.0, 2.2.0, 2.0.5, 2.3.0, 2.1.4
>
> Attachments: HBASE-21943-UT-v1.patch, HBASE-21943-UT.patch,
> HBASE-21943-UT.patch, HBASE-21943-v1.patch, HBASE-21943-v2.patch,
> HBASE-21943.patch
>
>
> In AsyncRegionLocatorHelper.mergeRegionLocations we create a new
> RegionLocations and call mergeRegionLocations on it, expected that it will be
> changed by this method, but actually the method will not modify the object
> itself, it will return a new one...
> And we are lucky that we create the RegionLocations with the new locations,
> so usually we will get update result. But when testing HBASE-21717, we meet
> another bug in AsyncNonMetaRegionLocator.isEqual, where we missed a '!' when
> checking server name equals...
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