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Posted to issues@spark.apache.org by "Hyukjin Kwon (JIRA)" <ji...@apache.org> on 2018/11/09 04:13:00 UTC

[jira] [Commented] (SPARK-25982) Dataframe write is non blocking in fair scheduling mode

    [ https://issues.apache.org/jira/browse/SPARK-25982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16680827#comment-16680827 ] 

Hyukjin Kwon commented on SPARK-25982:
--------------------------------------

Can you post reproducible codes to describe your idea, and elaborate the current input and expected input?

> Dataframe write is non blocking in fair scheduling mode
> -------------------------------------------------------
>
>                 Key: SPARK-25982
>                 URL: https://issues.apache.org/jira/browse/SPARK-25982
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 2.3.1
>            Reporter: Ramandeep Singh
>            Priority: Major
>
> Hi,
> I have noticed that expected behavior of dataframe write operation to block is not working in fair scheduling mode.
> Ideally when a dataframe write is occurring and a future is blocking on AwaitResult, no other job should be started, but this is not the case. I have noticed that other jobs are started when the partitions are being written.  
>  
> Regards,
> Ramandeep Singh
>  
>  



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