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https://issues.apache.org/jira/browse/HBASE-24667?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Busbey updated HBASE-24667:
--------------------------------
    Summary: Rename configs that support atypical DNS set ups to put them in 
hbase.unsafe  (was: Rename config that disables reverse DNS to put it in 
hbase.unsafe)

> 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
>            Priority: Major
>              Labels: beginner
>
> 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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