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https://issues.apache.org/jira/browse/SPARK-25261?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-25261.
-------------------------------
       Fix Version/s: 2.4.0
    Target Version/s:   (was: 3.0.0)
            Assignee: huangtengfei
          Resolution: Fixed

Resolved by https://github.com/apache/spark/pull/22252

> Standardize the default units of spark.driver|executor.memory
> -------------------------------------------------------------
>
>                 Key: SPARK-25261
>                 URL: https://issues.apache.org/jira/browse/SPARK-25261
>             Project: Spark
>          Issue Type: Improvement
>          Components: Kubernetes, Spark Core, YARN
>    Affects Versions: 2.3.0
>            Reporter: huangtengfei
>            Assignee: huangtengfei
>            Priority: Minor
>             Fix For: 2.4.0
>
>
> From  
> [SparkContext|https://github.com/ivoson/spark/blob/master/core/src/main/scala/org/apache/spark/SparkContext.scala#L464]
>  and 
> [SparkSubmitCommandBuilder|https://github.com/ivoson/spark/blob/master/launcher/src/main/java/org/apache/spark/launcher/SparkSubmitCommandBuilder.java#L265],we
>  can see that spark.driver.memory and spark.executor.memory are parsed as 
> bytes if no units specified. But in the doc, they are described as mb in 
> default, which may lead to some misunderstanding.



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