GitHub user jerryshao opened a pull request: https://github.com/apache/spark/pull/18552
[Mindo][Doc] Improve the docs about how to correctly set configurations ## What changes were proposed in this pull request? Spark provides several ways to set configurations, either from configuration file, or from `spark-submit` command line options, or programmatically through `SparkConf` class. It may confuses beginners why some configurations set through `SparkConf` cannot take affect. So here add some docs to address this problems and let beginners know how to correctly set configurations. ## How was this patch tested? N/A You can merge this pull request into a Git repository by running: $ git pull https://github.com/jerryshao/apache-spark improve-doc Alternatively you can review and apply these changes as the patch at: https://github.com/apache/spark/pull/18552.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #18552 ---- commit b24ed6d67caad393a0241f65a904aa0825a3a615 Author: jerryshao <ss...@hortonworks.com> Date: 2017-07-06T08:51:18Z Improve the docs to notify user how to correctly set configurations Change-Id: I48310680cd326dc109c6cd4f30d4f126292ea277 ---- --- If your project is set up for it, you can reply to this email and have your reply appear on GitHub as well. If your project does not have this feature enabled and wishes so, or if the feature is enabled but not working, please contact infrastructure at infrastruct...@apache.org or file a JIRA ticket with INFRA. --- --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org