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

["Jacek Laskowski (JIRA)" <ji...@apache.org>]

Jacek Laskowski created SPARK-16606:
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             Summary: 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


{{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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