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Shivaram Venkataraman commented on SPARK-2046: ---------------------------------------------- FWIW I have an older implementation that did this using LocalProperties in SparkContext. https://github.com/shivaram/spark-1/commit/256a34c12d4f3c8ed1a09174f331868a7bf30e11 I haven't tested it in a setting with multiple jobs running at the same time though > Support config properties that are changeable across tasks/stages within a job > ------------------------------------------------------------------------------ > > Key: SPARK-2046 > URL: https://issues.apache.org/jira/browse/SPARK-2046 > Project: Spark > Issue Type: Improvement > Components: Spark Core > Reporter: Zongheng Yang > > Suppose an application consists of multiple stages, where some stages contain > computation-intensive tasks, and other stages contain less > computation-intensive (or otherwise ordinary) tasks. > For such job to run efficiently, it might make sense to provide user a > function to set "spark.task.cpus" to a high number right before the > computation-intensive stages/tasks are getting generated in the user code, > and set the property to a lower number for other stages/tasks. > As a first step, supporting this feature across stages instead of the more > fine-grained task-level might suffice. -- This message was sent by Atlassian JIRA (v6.2#6252)