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  1. Spark
  2. SPARK-1994

Aggregates return incorrect results on first execution

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 1.0.0
    • Fix Version/s: 1.0.1, 1.1.0
    • Component/s: SQL
    • Labels:
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      Description

      Aaron Davidson has a full reproduction but he has found a case where the first run returns corrupted results, but the second case does not. The same does not occur when reading from HDFS a second time...

      sql("SELECT lang, COUNT(*) AS cnt FROM tweetTable GROUP BY lang ORDER BY cnt DESC").collect.foreach(println)
      [bg,16636]
      [16266,16266]
      [16223,16223]
      [16161,16161]
      [16047,16047]
      [lt,11405]
      [hu,11380]
      [el,10845]
      [da,10289]
      [fi,10261]
      [9897,9897]
      [9765,9765]
      [9751,9751]
      

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            • Assignee:
              marmbrus Michael Armbrust
              Reporter:
              marmbrus Michael Armbrust
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              Dates

              • Created:
                Updated:
                Resolved: