[jira] [Resolved] (SPARK-27811) Docs of spark.driver.memoryOverhead and spark.executor.memoryOverhead exists a little ambiguity

["Sean Owen (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-27811?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-27811.
-------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0

Issue resolved by pull request 24671
[https://github.com/apache/spark/pull/24671]

>  Docs of spark.driver.memoryOverhead and spark.executor.memoryOverhead exists a little ambiguity
> ------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-27811
>                 URL: https://issues.apache.org/jira/browse/SPARK-27811
>             Project: Spark
>          Issue Type: Improvement
>          Components: Documentation, Spark Core
>    Affects Versions: 2.3.0, 2.4.0
>            Reporter: jiaan.geng
>            Assignee: jiaan.geng
>            Priority: Trivial
>             Fix For: 3.0.0
>
>
> I found the docs of {{spark.driver.memoryOverhead}} and {{spark.executor.memoryOverhead}} exists a little ambiguity.
> For example, the origin docs of {{spark.driver.memoryOverhead}} start with {{The amount of off-heap memory to be allocated per driver in cluster mode}}.
> But {{MemoryManager}} also managed a memory area named off-heap used to allocate memory in tungsten mode.
> So I think the description of {{spark.driver.memoryOverhead}} always make confused.
> {{spark.executor.memoryOverhead}} has the same confused with {{spark.driver.memoryOverhead}}.



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