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Reynold Xin commented on SPARK-8008: ------------------------------------ Batching everything into giant partitions have pretty downsides w.r.t. fault tolerance, memory consumption, etc. I wouldn't call this a super high priority, but if somebody works on a patch we should merge it. > 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. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org