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From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Reopened] (HBASE-21943) The usage of RegionLocations.mergeRegionLocations is wrong for async client
Date Wed, 27 Feb 2019 03:13:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-21943?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Duo Zhang reopened HBASE-21943:
-------------------------------

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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