Davies Liu created SPARK-3888:
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             Summary: Limit the memory used by python worker
                 Key: SPARK-3888
                 URL: https://issues.apache.org/jira/browse/SPARK-3888
             Project: Spark
          Issue Type: Improvement
          Components: PySpark
            Reporter: Davies Liu


Right now, we did not limit the memory by Python workers, then it maybe run out 
of memory and freeze the OS. it's safe to have a configurable hard limitation 
for it, which should be large than spark.executor.python.memory.



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