Takuya Ueshin created SPARK-25525:
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Summary: Do not update conf for existing SparkContext in
SparkSession.getOrCreate.
Key: SPARK-25525
URL: https://issues.apache.org/jira/browse/SPARK-25525
Project: Spark
Issue Type: Bug
Components: PySpark, SQL
Affects Versions: 2.3.0, 2.4.0
Reporter: Takuya Ueshin
In SPARK-20946, we modified {{SparkSession.getOrCreate}} to not update conf for
existing {{SparkContext}} because {{SparkContext}} is shared by all sessions.
We should not update it in PySpark side as well.
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