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https://issues.apache.org/jira/browse/SPARK-3476?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14129026#comment-14129026
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Thomas Graves commented on SPARK-3476:
--------------------------------------

note https://github.com/apache/spark/pull/2253 fixes up the am memory 
calculations.

> Yarn ClientBase.validateArgs memory checks wrong
> ------------------------------------------------
>
>                 Key: SPARK-3476
>                 URL: https://issues.apache.org/jira/browse/SPARK-3476
>             Project: Spark
>          Issue Type: Bug
>          Components: YARN
>    Affects Versions: 1.2.0
>            Reporter: Thomas Graves
>
> The yarn ClientBase.validateArgs  memory checks are no longer valid.  It used 
> to be that the overhead was taken out of what the user specified, now we add 
> it on top of what the user specifies.   We can probably just remove these. 
> (args.amMemory <= memoryOverhead) -> ("Error: AM memory size must be" +
>         "greater than: " + memoryOverhead),
>       (args.executorMemory <= memoryOverhead) -> ("Error: Executor memory 
> size" +
>         "must be greater than: " + memoryOverhead.toString)



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