Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/16119#discussion_r93556537
--- Diff: python/pyspark/sql/context.py ---
@@ -72,8 +72,13 @@ def __init__(self, sparkContext, sparkSession=None,
jsqlContext=None):
self._sc = sparkContext
self._jsc = self._sc._jsc
self._jvm = self._sc._jvm
+
if sparkSession is None:
- sparkSession = SparkSession(sparkContext)
+ if sparkContext is SparkContext._active_spark_context:
+ sparkSession = SparkSession.builder.getOrCreate()
--- End diff --
Yeah, I've noticed this when doing the other pr. But I think we can have
only one `SparkContext`. Actually when you try to create another
`SparkContext`, you will see error. So I don't know why we need to pass in
other SparkContext which is not the active one.
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