From 784680903cdf003ac965b2d97b3f793324909bd3 Mon Sep 17 00:00:00 2001
From: davidxdh <xu.donghui@zte.com.cn>
Date: Fri, 28 Jul 2017 15:21:45 +0100
Subject: [PATCH] [SPARK-21553][SPARK SHELL] Add the description of the default
value of master parameter in the spark-shell
When I type spark-shell --help, I find that the default value description for the master parameter is missing. The user does not know what the default value is when the master parameter is not included, so we need to add the master parameter default description to the help information.
[https://issues.apache.org/jira/browse/SPARK-21553](https://issues.apache.org/jira/browse/SPARK-21553)
Author: davidxdh <xu.donghui@zte.com.cn>
Author: Donghui Xu <xu.donghui@zte.com.cn>
Closes #18755 from davidxdh/dev_0728.
---
.../scala/org/apache/spark/deploy/SparkSubmitArguments.scala | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/core/src/main/scala/org/apache/spark/deploy/SparkSubmitArguments.scala b/core/src/main/scala/org/apache/spark/deploy/SparkSubmitArguments.scala
index fd1521193f..3721b98d68 100644
--- a/core/src/main/scala/org/apache/spark/deploy/SparkSubmitArguments.scala
+++ b/core/src/main/scala/org/apache/spark/deploy/SparkSubmitArguments.scala
@@ -514,7 +514,8 @@ private[deploy] class SparkSubmitArguments(args: Seq[String], env: Map[String, S
outStream.println(
s"""
|Options:
- | --master MASTER_URL spark://host:port, mesos://host:port, yarn, or local.
+ | --master MASTER_URL spark://host:port, mesos://host:port, yarn, or local
+ | (Default: local[*]).
| --deploy-mode DEPLOY_MODE Whether to launch the driver program locally ("client") or
| on one of the worker machines inside the cluster ("cluster")
| (Default: client).
--
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