[jira] [Resolved] (HBASE-10491) RegionLocations::getRegionLocation can return unexpected replica

["Devaraj Das (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-10491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Devaraj Das resolved HBASE-10491.
---------------------------------
    Resolution: Later

> RegionLocations::getRegionLocation can return unexpected replica
> ----------------------------------------------------------------
>
>                 Key: HBASE-10491
>                 URL: https://issues.apache.org/jira/browse/HBASE-10491
>             Project: HBase
>          Issue Type: Sub-task
>    Affects Versions: hbase-10070
>            Reporter: Sergey Shelukhin
>
> The method returns first non-null replica.
> If first replica is assumed to always be non-null (discussed with Enis), then this code is not necessary, it should return 0th one, maybe assert it's not null.
> If that is not the case, then code may be incorrect and may return non-primary to some code (locateRegion overload) that doesn't expect it.
> Perhaps method should be called getAnyRegionReplica or something like that; and get(Primary?)RegionLocation should return the first.



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