Rene Treffer created SPARK-8008:
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Summary: sqlContext.jdbc can kill your database due to high
concurrency
Key: SPARK-8008
URL: https://issues.apache.org/jira/browse/SPARK-8008
Project: Spark
Issue Type: Bug
Reporter: Rene Treffer
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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