Github user vanzin commented on a diff in the pull request: https://github.com/apache/spark/pull/19893#discussion_r161322305 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/test/SharedSQLContext.scala --- @@ -17,4 +17,37 @@ package org.apache.spark.sql.test -trait SharedSQLContext extends SQLTestUtils with SharedSparkSession +trait SharedSQLContext extends SQLTestUtils with SharedSparkSession { + + /** + * Suites extending [[SharedSQLContext]] are sharing resources (eg. SparkSession) in their tests. + * Such resources are initialized by the suite before thread audit takes thread snapshot and --- End diff -- I think this is an easier to understand comment about what's going on here: ``` /** * Suites extending [[SharedSQLContext]] are sharing resources (eg. SparkSession) in their tests. * Trat trait initializes the spark session in its [[beforeAll()]] implementation before the * automatic thread snapshot is performed, so the audit code could fail to report threads leaked * by that shared session. * * The behavior is overridden here to take the snapshot before the spark session is initialized. */ ``` Sorry for the noise.
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