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https://issues.apache.org/jira/browse/SPARK-26235?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16704821#comment-16704821
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Apache Spark commented on SPARK-26235:
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User 'gengliangwang' has created a pull request for this issue:
https://github.com/apache/spark/pull/23189
> Change log level for ClassNotFoundException/NoClassDefFoundError in
> SparkSubmit to Error
> ----------------------------------------------------------------------------------------
>
> Key: SPARK-26235
> URL: https://issues.apache.org/jira/browse/SPARK-26235
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Affects Versions: 3.0.0
> Reporter: Gengliang Wang
> Priority: Trivial
>
> In my local setup, I set log4j root category as ERROR
> (https://stackoverflow.com/questions/27781187/how-to-stop-info-messages-displaying-on-spark-console
> , first item show up if we google search "set spark log level".)
> When I run such command
> ```
> spark-submit --class foo bar.jar
> ```
> Nothing shows up, and the script exits.
> After quick investigation, I think the log level for
> ClassNotFoundException/NoClassDefFoundError in SparkSubmit should be ERROR
> instead of WARN.
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