nxcals.api.extraction.data.builders.SparkSession.getActiveSession

classmethod SparkSession.getActiveSession() → Optional[SparkSession]

Returns the active SparkSession for the current thread, returned by the builder

New in version 3.0.0.

Returns:

Spark session if an active session exists for the current thread

Return type:

SparkSession

Examples

>>> s = SparkSession.getActiveSession()
>>> l = [('Alice', 1)]
>>> rdd = s.sparkContext.parallelize(l)
>>> df = s.createDataFrame(rdd, ['name', 'age'])
>>> df.select("age").collect()
[Row(age=1)]