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  1. Spark
  2. SPARK-8008

JDBC data source can overload the external database system due to high concurrency

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Won't Fix
    • None
    • None
    • SQL
    • None

    Description

      Spark tries to load as many partitions as possible in parallel, which can in turn overload the database although it would be possible to load all partitions given a lower concurrency.

      It would be nice to either limit the maximum concurrency or to at least warn about this behavior.

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            Unassigned Unassigned
            rtreffer Rene Treffer
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