[jira] [Issue Comment Deleted] (SPARK-3694) Allow printing object graph of tasks/RDD's with a debug flag

["Patrick Wendell (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-3694?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Patrick Wendell updated SPARK-3694:
-----------------------------------
    Comment: was deleted

(was: User 'davies' has created a pull request for this issue:
https://github.com/apache/spark/pull/3091)

> Allow printing object graph of tasks/RDD's with a debug flag
> ------------------------------------------------------------
>
>                 Key: SPARK-3694
>                 URL: https://issues.apache.org/jira/browse/SPARK-3694
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>            Reporter: Patrick Wendell
>            Assignee: Ilya Ganelin
>              Labels: starter
>
> This would be useful for debugging extra references inside of RDD's
> Here is an example for inspiration:
> http://ehcache.org/xref/net/sf/ehcache/pool/sizeof/ObjectGraphWalker.html
> We'd want to print this trace for both the RDD serialization inside of the DAGScheduler and the task serialization in the TaskSetManager.



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