[jira] [Created] (DRILL-2623) Expose only "productized" system/session configuration parameters

["Victoria Markman (JIRA)" <ji...@apache.org>]

Victoria Markman created DRILL-2623:
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             Summary: Expose only "productized" system/session configuration parameters
                 Key: DRILL-2623
                 URL: https://issues.apache.org/jira/browse/DRILL-2623
             Project: Apache Drill
          Issue Type: New Feature
            Reporter: Victoria Markman
            Assignee: Jacques Nadeau


This is an enhancement request to expose only well tested and useful parameters to the end user.
For example, we don't want to allow all users to change internal configuration parameters, like exec.min_hash_table_size or enable features that are not ready for prime time ( store.parquet.enable_dictionary_encoding for example). 
However, sometimes in order to achieve optimal performace some configuration fiddling will be absolutely necessary. We can allow different users with different privileges have an ability to change settings.

One of the proposals to achieve this is to create a view on top of sys.options that will be created on drills start up and have privileged access 
a) to the information in the view - show only things that particular user is allowed to see 
b) have privileged access to "ALTER SYSTEM/SESSION" commands.



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