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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2019/05/23 04:25:00 UTC
[jira] [Assigned] (SPARK-27811) Docs of
spark.driver.memoryOverhead and spark.executor.memoryOverhead exists a
little ambiguity
[ https://issues.apache.org/jira/browse/SPARK-27811?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-27811:
------------------------------------
Assignee: (was: Apache Spark)
> 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
> Priority: Major
>
> 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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