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Posted to issues@spark.apache.org by "Cheng Lian (JIRA)" <ji...@apache.org> on 2015/08/10 19:59:48 UTC

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

Cheng Lian created SPARK-9783:
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             Summary: 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
         Environment: 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}}.
            Reporter: Cheng Lian
            Assignee: Cheng Lian
            Priority: Blocker






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