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https://issues.apache.org/jira/browse/SPARK-33339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17231079#comment-17231079
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Apache Spark commented on SPARK-33339:
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User 'li36909' has created a pull request for this issue:
https://github.com/apache/spark/pull/30361
> Pyspark application will hang due to non Exception
> --------------------------------------------------
>
> Key: SPARK-33339
> URL: https://issues.apache.org/jira/browse/SPARK-33339
> Project: Spark
> Issue Type: Bug
> Components: PySpark
> Affects Versions: 2.4.5, 3.0.0, 3.0.1
> Reporter: lrz
> Assignee: lrz
> Priority: Major
> Fix For: 3.0.2, 3.1.0
>
>
> When a system.exit exception occurs during the process, the python worker
> exits abnormally, and then the executor task is still waiting for the worker
> for reading from socket, causing it to hang.
> The system.exit exception may be caused by the user's error code, but spark
> should at least throw an error to remind the user, not get stuck
> we can run a simple test to reproduce this case:
> ```
> from pyspark.sql import SparkSession
> def err(line):
> raise SystemExit
> spark = SparkSession.builder.appName("test").getOrCreate()
> spark.sparkContext.parallelize(range(1,2), 2).map(err).collect()
> spark.stop()
> ```
>
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