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From "Ryan Williams (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (SPARK-4665) Config value for setting yarn container overhead to a fraction of executor memory
Date Tue, 10 Feb 2015 01:05:34 GMT

     [ https://issues.apache.org/jira/browse/SPARK-4665?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ryan Williams closed SPARK-4665.
--------------------------------
    Resolution: Won't Fix

Per discussion on [#3525|https://github.com/apache/spark/pull/3525], people don't feel that
configuring memory overhead in this way is useful / worth adding a config parameter for.

> 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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