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https://issues.apache.org/jira/browse/SPARK-2655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Patrick Wendell resolved SPARK-2655.
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Resolution: Won't Fix
> Change the default logging level to WARN
> ----------------------------------------
>
> Key: SPARK-2655
> URL: https://issues.apache.org/jira/browse/SPARK-2655
> Project: Spark
> Issue Type: Improvement
> Reporter: Davies Liu
>
> The current logging level INFO is pretty noisy, reduce these unnecessary
> logging will provide better experience for users.
> Currently, Spark is march stable and nature than before, so user will not
> need those much logging in normal cases. But some high level information will
> be helpful, such as messages about job and tasks progress, we could changes
> these important logging into WARN level as an hack, otherwise will need to
> change all other logging into level DEBUG.
> PS: it's better to have one line progress logging in terminal (also in title).
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