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https://issues.apache.org/jira/browse/SPARK-25982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16782527#comment-16782527
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Ramandeep Singh commented on SPARK-25982:
-----------------------------------------
No, as I said those operations at a stage are independent. And I explicitly
await for them to complete before launching the next stage. It's the fact that
operation from next stage start running before all futures have completed.
> 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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