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https://issues.apache.org/jira/browse/SPARK-8630?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14732408#comment-14732408
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Shixiong Zhu commented on SPARK-8630:
-------------------------------------

Sent a PR to output a warning: https://github.com/apache/spark/pull/8624

> Prevent from checkpointing QueueInputDStream
> --------------------------------------------
>
>                 Key: SPARK-8630
>                 URL: https://issues.apache.org/jira/browse/SPARK-8630
>             Project: Spark
>          Issue Type: Improvement
>          Components: Streaming
>            Reporter: Shixiong Zhu
>            Assignee: Shixiong Zhu
>             Fix For: 1.4.1, 1.5.0
>
>
> It's better to prevent from checkpointing QueueInputDStream rather than 
> failing the application when recovering `QueueInputDStream`, so that people 
> can find the issue as soon as possible. See SPARK-8553 for example.



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