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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2015/05/06 08:54:09 UTC
[jira] [Updated] (SPARK-3513) Provide a utility for running a
function once on each executor
[ https://issues.apache.org/jira/browse/SPARK-3513?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen updated SPARK-3513:
-----------------------------
Target Version/s: (was: 1.2.0)
> Provide a utility for running a function once on each executor
> --------------------------------------------------------------
>
> Key: SPARK-3513
> URL: https://issues.apache.org/jira/browse/SPARK-3513
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Reporter: Patrick Wendell
> Priority: Minor
>
> This is minor, but it would be nice to have a utility where you can pass a function and it will run some arbitrary function once on each each executor and return the result to you (e.g. you could perform a jstack from within the JVM). You could probably hack it together with custom locality preferences, accessing the list of live executors, and mapPartitions.
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