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https://issues.apache.org/jira/browse/SPARK-4665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14229442#comment-14229442
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Apache Spark commented on SPARK-4665:
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User 'ryan-williams' has created a pull request for this issue:
https://github.com/apache/spark/pull/3525
> Config value for setting yarn container overhead to a fraction of executor
> memory
> ---------------------------------------------------------------------------------
>
> Key: SPARK-4665
> URL: https://issues.apache.org/jira/browse/SPARK-4665
> Project: Spark
> Issue Type: Improvement
> Components: YARN
> Reporter: Ryan Williams
>
> Currently, the {{spark.yarn.executor.memoryOverhead}} config lets you specify
> a number of MB of "overhead" memory to allocate for each executor.
> It turns out that it is more useful to set this to a specific fraction of the
> executor memory size; currently a lower-bound of 7% is the default.
> This lower-bound percentage should be configurable, as well; I've heard rules
> of thumb that closer to 10% is desirable, and in general it makes more sense
> to be able to specify the fraction you're targeting than to specify an
> absolute number of MB.
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