[jira] [Created] (SPARK-28721) Failing to stop SparkSession in K8S cluster mode PySpark leaks Driver and Executors

["Patrick Clay (JIRA)" <ji...@apache.org>]

Patrick Clay created SPARK-28721:
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             Summary: Failing to stop SparkSession in K8S cluster mode PySpark leaks Driver and Executors
                 Key: SPARK-28721
                 URL: https://issues.apache.org/jira/browse/SPARK-28721
             Project: Spark
          Issue Type: Bug
          Components: Kubernetes, PySpark
    Affects Versions: 2.4.3
            Reporter: Patrick Clay


This does not seem to affect 2.4.0.

To repro:
 # Download pristine Spark 2.4.3 binary
 # Edit pi.py to not call spark.stop()
 # ./bin/docker-image-tool.sh -r MY_IMAGE -t MY_TAG build push
 # spark-submit --master k8s://IP --deploy-mode cluster --conf spark.kubernetes.driver.pod.name=spark-driver --conf spark.kubernetes.container.image=MY_IMAGE:MY_TAG file:/opt/spark/examples/src/main/python/pi.py

The driver runs successfully and Python exits but the Driver and Executor JVMs and Pods remain up.

 

I realize that explicitly calling spark.stop() is always best practice, but since this does not repro in 2.4.0 it seems like a regression.



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