[jira] [Resolved] (SPARK-30121) Fix memory usage in sbt build script

["Sean R. Owen (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-30121?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean R. Owen resolved SPARK-30121.
----------------------------------
    Fix Version/s: 3.0.0
       Resolution: Fixed

Issue resolved by pull request 26757
[https://github.com/apache/spark/pull/26757]

> Fix memory usage in sbt build script
> ------------------------------------
>
>                 Key: SPARK-30121
>                 URL: https://issues.apache.org/jira/browse/SPARK-30121
>             Project: Spark
>          Issue Type: Bug
>          Components: Build
>    Affects Versions: 2.4.4, 3.0.0
>            Reporter: Kent Yao
>            Assignee: Kent Yao
>            Priority: Trivial
>             Fix For: 3.0.0
>
>
> 1. the default memory setting is missing in usage instructions 
> {code:java}
> ```
> build/sbt -h
> ```
> ```
> -mem    <integer>  set memory options (default: , which is -Xms2048m -Xmx2048m -XX:ReservedCodeCacheSize=256m)
> ```
> {code}
> 2. the Perm space is not needed anymore, since java7 is removed.



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