[jira] [Comment Edited] (SPARK-17669) Strange behavior using Datasets

["Miles Crawford (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-17669?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15531133#comment-15531133 ] 

Miles Crawford edited comment on SPARK-17669 at 9/29/16 5:21 PM:
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<This comment was in error>


was (Author: milesc):
So, it looks like the issue was a version mismatch between the jar I was specifying with `spark.yarn.jar` and the version being used on the YARN cluster.

I think communication confusion between the nodemanagers or the external shuffle service was to blame.

So - perhaps the issue is that different versions should crash rather than misbehave?

> Strange behavior using Datasets
> -------------------------------
>
>                 Key: SPARK-17669
>                 URL: https://issues.apache.org/jira/browse/SPARK-17669
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL, Web UI
>    Affects Versions: 2.0.0
>            Reporter: Miles Crawford
>
> I recently migrated my application to Spark 2.0, and everything worked well, except for one function that uses "toDS" and the ML libraries.
> This stage used to complete in 15 minutes or so on 1.6.2, and now takes almost two hours.
> The UI shows very strange behavior - completed stages still being worked on, concurrent work on tons of stages, including ones from downstream jobs:
> https://dl.dropboxusercontent.com/u/231152/spark.png
> The only source change I made was changing "toDF" to "toDS()" before handing my RDDs to the ML libraries.



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