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Posted to issues@spark.apache.org by "Patrick Wendell (JIRA)" <ji...@apache.org> on 2014/06/10 02:07:02 UTC

[jira] [Updated] (SPARK-2086) Improve output of toDebugString to make shuffle boundaries more clear

     [ https://issues.apache.org/jira/browse/SPARK-2086?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Patrick Wendell updated SPARK-2086:
-----------------------------------

    Description: 
It would be nice if the toDebugString method of an RDD did a better job of explaining where shuffle boundaries occur in the lineage graph. One way to do this would be to only indent the tree at a shuffle boundary instead of indenting it for every parent. 

We can determine when a shuffle boundary occurs based on the type of dependency seen in the RDD.

  was:It would be nice if the toDebugString method of an RDD did a better job of explaining where shuffle boundaries occur in the lineage graph. One way to do this would be to only indent the tree at a shuffle boundary instead of indenting it for every parent. 


> Improve output of toDebugString to make shuffle boundaries more clear
> ---------------------------------------------------------------------
>
>                 Key: SPARK-2086
>                 URL: https://issues.apache.org/jira/browse/SPARK-2086
>             Project: Spark
>          Issue Type: Improvement
>            Reporter: Patrick Wendell
>            Assignee: Gregory Owen
>            Priority: Minor
>
> It would be nice if the toDebugString method of an RDD did a better job of explaining where shuffle boundaries occur in the lineage graph. One way to do this would be to only indent the tree at a shuffle boundary instead of indenting it for every parent. 
> We can determine when a shuffle boundary occurs based on the type of dependency seen in the RDD.



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