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https://issues.apache.org/jira/browse/DRILL-5723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16161728#comment-16161728
 ] 

ASF GitHub Bot commented on DRILL-5723:
---------------------------------------

Github user ilooner commented on a diff in the pull request:

    https://github.com/apache/drill/pull/923#discussion_r138152185
  
    --- Diff: 
exec/java-exec/src/main/java/org/apache/drill/exec/server/options/SystemOptionManager.java
 ---
    @@ -346,17 +347,63 @@ public void deleteAllOptions(OptionType type) {
         }
       }
     
    -  public void populateDefaultValues() {
    -
    +  public static CaseInsensitiveMap<OptionValue> 
populateDefualtValues(Map<String, OptionDefinition> definitions, DrillConfig 
bootConfig) {
    --- End diff --
    
    Done


> Support System/Session Internal Options And Additional Option System Fixes
> --------------------------------------------------------------------------
>
>                 Key: DRILL-5723
>                 URL: https://issues.apache.org/jira/browse/DRILL-5723
>             Project: Apache Drill
>          Issue Type: New Feature
>            Reporter: Timothy Farkas
>            Assignee: Timothy Farkas
>
> This is a feature proposed by [~ben-zvi].
> Currently all the options are accessible by the user in sys.options. We would 
> like to add internal options which can be altered, but are not visible in the 
> sys.options table. These internal options could be seen by another alias 
> select * from internal.options. The intention would be to put new options we 
> weren't comfortable with exposing to the end user in this table.
> After the options and their corresponding features are considered stable they 
> could be changed to appear in the sys.option table.
> A bunch of other fixes to the Option system have been clubbed into this:
> * OptionValidators no longer hold default values. Default values are 
> contained in the SystemOptionManager
> * Options have an OptionDefinition. The option definition includes:
>   * A validator
>   * Metadata about the options visibility, required permissions, and the 
> scope in which it can be set.
> * The Option Manager interface has been cleaned up so that a Type is not 
> required to be passed in in order to set and delete options



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