[jira] [Resolved] (SPARK-16606) Misleading warning for SparkContext.getOrCreate "WARN SparkContext: Use an existing SparkContext, some configuration may not take effect."

["Sean Owen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-16606?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-16606.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 2.1.0

Issue resolved by pull request 14533
[https://github.com/apache/spark/pull/14533]

> Misleading warning for SparkContext.getOrCreate "WARN SparkContext: Use an existing SparkContext, some configuration may not take effect."
> ------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-16606
>                 URL: https://issues.apache.org/jira/browse/SPARK-16606
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 2.1.0
>            Reporter: Jacek Laskowski
>            Priority: Minor
>             Fix For: 2.1.0
>
>
> {{SparkContext.getOrCreate}} should really be checking whether the code gets the already-created instance or creating a new one.
> Just a nit-pick: the warning message should also be "Using..." not "Use"
> {code}
> scala> sc.version
> res2: String = 2.1.0-SNAPSHOT
> scala> sc
> res3: org.apache.spark.SparkContext = org.apache.spark.SparkContext@1186374c
> scala> SparkContext.getOrCreate
> 16/07/18 14:40:31 WARN SparkContext: Use an existing SparkContext, some configuration may not take effect.
> res4: org.apache.spark.SparkContext = org.apache.spark.SparkContext@1186374c
> {code}



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