[SPARK-35013] Spark allows to set spark.driver.cores=0 - ASF JIRA

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Details

Type: Improvement
Status: Resolved
Priority: Minor
Resolution: Fixed
Affects Version/s: 2.4.7, 3.1.1
Fix Version/s: 3.2.0
Component/s: Spark Core
Labels:
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Description

I found an inconsistency in validation logic of Spark submit arguments that allows spark.driver.cores value to be set to 0 but requires spark.driver.memory, spark.executor.cores, spark.executor.memory to be positive numbers:

Exception in thread "main" org.apache.spark.SparkException: Driver memory must be a positive number
Exception in thread "main" org.apache.spark.SparkException: Executor cores must be a positive number
Exception in thread "main" org.apache.spark.SparkException: Executor memory must be a positive number

I would like to understand if there is a reason for this inconsistency in the validation logic or it is a bug?

Thank you