[jira] [Closed] (SPARK-9783) Use SqlNewHadoopRDD in JSONRelation to eliminate extra refresh() call

["Cheng Lian (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-9783?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Cheng Lian closed SPARK-9783.
-----------------------------
    Resolution: Not A Problem

This issue is no longer a problem since we re-implemented the JSON data source using the new {{FileFormat}} facilities in Spark 2.0.0.

> Use SqlNewHadoopRDD in JSONRelation to eliminate extra refresh() call
> ---------------------------------------------------------------------
>
>                 Key: SPARK-9783
>                 URL: https://issues.apache.org/jira/browse/SPARK-9783
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 1.5.0
>            Reporter: Cheng Lian
>            Assignee: Cheng Lian
>
> PR #8035 made a quick fix for SPARK-9743 by introducing an extra {{refresh()}} call in {{JSONRelation.buildScan}}. Obviously it hurts performance. To overcome this, we can use {{SqlNewHadoopRDD}} there and override {{listStatus()}} to inject cached {{FileStatus}} instances, similar as what we did in {{ParquetRelation}}.



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