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Posted to issues@drill.apache.org by "Jacques Nadeau (JIRA)" <ji...@apache.org> on 2014/12/01 06:46:13 UTC

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

     [ https://issues.apache.org/jira/browse/DRILL-1774?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jacques Nadeau resolved DRILL-1774.
-----------------------------------
    Resolution: Fixed

Resolved in b218ec0

> 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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