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Nicholas Chammas commented on SPARK-5997: ----------------------------------------- [~tenstriker] - I believe in your case you should be able to set {{spark.sql.files.maxRecordsPerFile}} to some number. Spark will not shuffle the data but it will still split up your output across multiple files. > Increase partition count without performing a shuffle > ----------------------------------------------------- > > Key: SPARK-5997 > URL: https://issues.apache.org/jira/browse/SPARK-5997 > Project: Spark > Issue Type: Improvement > Components: Spark Core > Reporter: Andrew Ash > Priority: Major > > When decreasing partition count with rdd.repartition() or rdd.coalesce(), the > user has the ability to choose whether or not to perform a shuffle. However > when increasing partition count there is no option of whether to perform a > shuffle or not -- a shuffle always occurs. > This Jira is to create a {{rdd.repartition(largeNum, shuffle=false)}} call > that performs a repartition to a higher partition count without a shuffle. > The motivating use case is to decrease the size of an individual partition > enough that the .toLocalIterator has significantly reduced memory pressure on > the driver, as it loads a partition at a time into the driver. -- This message was sent by Atlassian Jira (v8.20.1#820001) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org