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https://issues.apache.org/jira/browse/HBASE-26790?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17558727#comment-17558727
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Hudson commented on HBASE-26790:
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Results for branch branch-2
[build #576 on
builds.a.o|https://ci-hbase.apache.org/job/HBase%20Nightly/job/branch-2/576/]:
(x) *{color:red}-1 overall{color}*
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> getAllRegionLocations can cache locations with null hostname
> ------------------------------------------------------------
>
> Key: HBASE-26790
> URL: https://issues.apache.org/jira/browse/HBASE-26790
> Project: HBase
> Issue Type: Bug
> Reporter: Bryan Beaudreault
> Assignee: Bryan Beaudreault
> Priority: Major
> Fix For: 2.5.1, 3.0.0-alpha-4, 2.4.14
>
>
> RegionLocator methods typically delegate to
> ConnectionImplementation.locateRegion, which throws a
> NoServerForRegionException if the located region's serverName is null.
> RegionLocator.getAllRegionLocations does not go through that path, instead
> caching all returned region locations without any validation. This can result
> in a "dirty" meta cache, since clients do not expect to have null serverNames
> in the meta cache. We should add the same throwing ofÂ
> NoServerForRegionException to this method as used in the others. Or at least
> we should not cache the result if the serverName is null.
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