@dmtucker If we include a config in the mpack, it will be shown in our OneFS 
service UI. So whether we change HDFS's default or just copy it over, it will 
be shown.

In this case, we initially included the setting to match our recommendations to 
admins in order to use Ambari Views. But that's not necessary with the WebHDFS 
changes in OneFS 8.1.2. Instead of changing the value from `false` to `true`, 
we should completely remove it. Customers could still add a Custom config to 
override the HDFS default, but we don't anticipate any need for that. (Only 
case I can think of is if they disabled WebHDFS in OneFS, they should change 
the client config to match.)

[ Full content available at: https://github.com/apache/ambari/pull/2170 ]
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