Zongheng Yang created SPARK-2046: ------------------------------------ Summary: 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)