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https://issues.apache.org/jira/browse/HBASE-24667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17228745#comment-17228745
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Hudson commented on HBASE-24667:
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Results for branch branch-2
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> Rename configs that support atypical DNS set ups to put them in hbase.unsafe
> ----------------------------------------------------------------------------
>
> Key: HBASE-24667
> URL: https://issues.apache.org/jira/browse/HBASE-24667
> Project: HBase
> Issue Type: Task
> Components: conf, Operability
> Reporter: Sean Busbey
> Assignee: Prathyusha
> Priority: Major
> Labels: beginner
> Fix For: 3.0.0-alpha-1, 2.4.0
>
>
> HBASE-18226 added a config for disabling reverse DNS checks
> {{hbase.regionserver.hostname.disable.master.reversedns}} and the release
> note calls out that the config is dangerous:
> {quote}he following config is added by this JIRA:
> hbase.regionserver.hostname.disable.master.reversedns
> This config is for experts: don't set its value unless you really know what
> you are doing.
> When set to true, regionserver will use the current node hostname for the
> servername and HMaster will skip reverse DNS lookup and use the hostname sent
> by regionserver instead. Note that this config and
> hbase.regionserver.hostname are mutually exclusive. See
> https://issues.apache.org/jira/browse/HBASE-18226 for more details.
> Caution: please make sure rolling upgrade succeeds before turning on this
> feature.
> {quote}
> We should make clear the risks of using this config by making sure the name
> starts with {{hbase.unsafe}}.
> Rename {{hbase.regionserver.hostname.disable.master.reversedns}} to
> {{hbase.unsafe.regionserver.hostname.disable.master.reversedns}} but make
> sure the former is kept with a "deprecated config name" warning.
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