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https://issues.apache.org/jira/browse/SPARK-18807?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shivaram Venkataraman resolved SPARK-18807.
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Resolution: Fixed
Fix Version/s: 2.1.1
Resolved by https://github.com/apache/spark/pull/16237
> Should suppress output print for calls to JVM methods with void return values
> -----------------------------------------------------------------------------
>
> Key: SPARK-18807
> URL: https://issues.apache.org/jira/browse/SPARK-18807
> Project: Spark
> Issue Type: Bug
> Components: SparkR
> Affects Versions: 2.0.0, 2.1.0
> Reporter: Felix Cheung
> Assignee: Felix Cheung
> Priority: Minor
> Fix For: 2.1.1
>
>
> Several SparkR API calling into JVM methods that have void return values are
> getting printed out, especially when running in a REPL or IDE.
> example:
> > setLogLevel("WARN")
> NULL
> We should fix this to make the result more clear.
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