[jira] [Assigned] (SPARK-5768) Spark UI Shows incorrect memory under Yarn

["Apache Spark (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-5768?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-5768:
-----------------------------------

    Assignee: Apache Spark

> Spark UI Shows incorrect memory under Yarn
> ------------------------------------------
>
>                 Key: SPARK-5768
>                 URL: https://issues.apache.org/jira/browse/SPARK-5768
>             Project: Spark
>          Issue Type: Improvement
>          Components: Web UI
>    Affects Versions: 1.2.0, 1.2.1
>         Environment: Centos 6
>            Reporter: Al M
>            Assignee: Apache Spark
>            Priority: Trivial
>
> I am running Spark on Yarn with 2 executors.  The executors are running on separate physical machines.
> I have spark.executor.memory set to '40g'.  This is because I want to have 40g of memory used on each machine.  I have one executor per machine.
> When I run my application I see from 'top' that both my executors are using the full 40g of memory I allocated to them.
> The 'Executors' tab in the Spark UI shows something different.  It shows the memory used as a total of 20GB per executor e.g. x / 20.3GB.  This makes it look like I only have 20GB available per executor when really I have 40GB available.



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