[jira] [Commented] (DRILL-1774) Improve JSON Performance

["Paul R. Brown (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-1774?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14230106#comment-14230106 ] 

Paul R. Brown commented on DRILL-1774:
--------------------------------------

Stop by the Jackson user list (https://groups.google.com/d/forum/jackson-user) or dev list (https://groups.google.com/d/forum/jackson-dev) if you run into other performance issues, and we can see about helping out.

> Improve JSON Performance
> ------------------------
>
>                 Key: DRILL-1774
>                 URL: https://issues.apache.org/jira/browse/DRILL-1774
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - JSON
>            Reporter: Jacques Nadeau
>            Assignee: Jacques Nadeau
>             Fix For: 0.7.0
>
>         Attachments: DRILL-1774.patch
>
>
> There are multiple reasons that JSON performance is subpar.  We need to update the reader to do the following:
> - Avoid double reading (for rewinding)
> - Take advantage of Jackson interning/hashing of field names.
> - Improve field selection behavior. (avoid object creation and multiple traversals)
> - Better delineation of allTextMode behavior



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