[jira] [Commented] (TAJO-928) Session variables should override query configs in TajoConf.

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TAJO-928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14084074#comment-14084074 ] 

ASF GitHub Bot commented on TAJO-928:
-------------------------------------

Github user hyunsik commented on the pull request:

    https://github.com/apache/tajo/pull/98#issuecomment-50998335
  
    It is ready to be reviewed. Please review the patch. I'll also add some documentation soon.


> Session variables should override query configs in TajoConf.
> ------------------------------------------------------------
>
>                 Key: TAJO-928
>                 URL: https://issues.apache.org/jira/browse/TAJO-928
>             Project: Tajo
>          Issue Type: Improvement
>          Components: distributed query plan, planner/optimizer
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>             Fix For: 0.9.0
>
>
> Currently, we should use tajo-site in order to change the configurations related queries, such as optimization option or some parameters. It is never practical because we need to restart a Tajo cluster in order to change the config.
> The main purpose of this issue is to refactor the system of session variable and some part to recognize query configs to accept the session variables. Also, when there are duplicated configs in session and TajoConf, session variables should override the existing config of TajoConf.



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