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Posted to issues@spark.apache.org by "Dongjoon Hyun (Jira)" <ji...@apache.org> on 2026/02/28 17:03:00 UTC

[jira] [Created] (SPARK-55757) Improve `spark.task.cpus` validation

Dongjoon Hyun created SPARK-55757:
-------------------------------------

             Summary: Improve `spark.task.cpus` validation
                 Key: SPARK-55757
                 URL: https://issues.apache.org/jira/browse/SPARK-55757
             Project: Spark
          Issue Type: Sub-task
          Components: Spark Core
    Affects Versions: 4.2.0
            Reporter: Dongjoon Hyun


Currently, Apache Spark throws `java.lang.ArithmeticException` for the invalid `spark.task.cpus`. We had better improve it.

{code}
$ bin/spark-shell -c spark.task.cpus=0
...
Welcome to
      ____              __
     / __/__  ___ _____/ /__
    _\ \/ _ \/ _ `/ __/  '_/
   /___/ .__/\_,_/_/ /_/\_\   version 4.2.0-preview2
      /_/
...
26/02/28 09:00:56 ERROR SparkContext: Error initializing SparkContext.
java.lang.ArithmeticException: / by zero
	at org.apache.spark.resource.ResourceUtils$.warnOnWastedResources(ResourceUtils.scala:444)
{code}



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