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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

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: SQL
    • Labels:
      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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            • Assignee:
              Unassigned
              Reporter:
              rtreffer Rene Treffer
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              • Created:
                Updated:
                Resolved: