[jira] [Commented] (SPARK-22139) Remove the variable which is never used in SparkConf.scala

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

    [ https://issues.apache.org/jira/browse/SPARK-22139?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16182107#comment-16182107 ] 

Apache Spark commented on SPARK-22139:
--------------------------------------

User 'guoxiaolongzte' has created a pull request for this issue:
https://github.com/apache/spark/pull/19360

> Remove the variable which is never used in SparkConf.scala
> ----------------------------------------------------------
>
>                 Key: SPARK-22139
>                 URL: https://issues.apache.org/jira/browse/SPARK-22139
>             Project: Spark
>          Issue Type: Improvement
>          Components: Spark Core
>    Affects Versions: 2.3.0
>            Reporter: guoxiaolongzte
>            Priority: Trivial
>
> Remove the variable which is never used in SparkConf.scala.
> val executorClasspathKey = "spark.executor.extraClassPath"
> val driverOptsKey = "spark.driver.extraJavaOptions"
> val driverClassPathKey = "spark.driver.extraClassPath"
> val sparkExecutorInstances = "spark.executor.instances"
> They variables are never used. Because the implementation code for the validation rule has been removed in SPARK-17979.



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