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From "Dhruve Ashar (JIRA)" <>
Subject [jira] [Commented] (SPARK-20589) Allow limiting task concurrency per stage
Date Fri, 04 Aug 2017 16:59:00 GMT


Dhruve Ashar commented on SPARK-20589:

I have a patch for this and would like to have some feedback/thoughts on this approach.

> Allow limiting task concurrency per stage
> -----------------------------------------
>                 Key: SPARK-20589
>                 URL:
>             Project: Spark
>          Issue Type: Improvement
>          Components: Scheduler
>    Affects Versions: 2.1.0
>            Reporter: Thomas Graves
> It would be nice to have the ability to limit the number of concurrent tasks per stage.
 This is useful when your spark job might be accessing another service and you don't want
to DOS that service.  For instance Spark writing to hbase or Spark doing http puts on a service.
 Many times you want to do this without limiting the number of partitions. 

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