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