diff --git a/README.md b/README.md
index 724eeae..43e492a 100644
--- a/README.md
+++ b/README.md
@@ -151,4 +151,20 @@ SparkSession spark = SparkSession
 4.打开spark server界面，可以看到已经完成的spark作业。
 ![](https://raw.githubusercontent.com/huzekang/picbed/master/20190626112849.png)
 
-### 提交作业到yarn
\ No newline at end of file
+### 提交作业到yarn
+1.代码中定义的上下文不要指定master
+```java
+        SparkSession spark = SparkSession
+                .builder()
+                .appName("Java Spark SQL Starter ！！")
+                .enableHiveSupport()
+                .config("spark.some.config.option", "some-value")
+                .getOrCreate();
+```
+
+2.使用`mvn clean package`打包好的作业，并提交到本地安装好的spark环境上跑
+```
+~/opt/spark-2.4.0-bin-hadoop2.7 » bin/spark-submit  --master yarn  --deploy-mode cluster  --class "com.wugui.sparkstarter.SparkHiveNewVersion" /Users/huzekang/study/spark-starter/target/spark-starter-1.0-SNAPSHOT.jar
+```
+3.打开yarn观察到作业已经完成了。
+![](https://raw.githubusercontent.com/huzekang/picbed/master/20190626133707.png)
\ No newline at end of file
diff --git a/src/main/java/com/wugui/sparkstarter/SparkHiveNewVersion.java b/src/main/java/com/wugui/sparkstarter/SparkHiveNewVersion.java
index 0fdf924..8c6b36c 100644
--- a/src/main/java/com/wugui/sparkstarter/SparkHiveNewVersion.java
+++ b/src/main/java/com/wugui/sparkstarter/SparkHiveNewVersion.java
@@ -15,9 +15,10 @@ public static void main(String[] args) {
         //  定义上下文
         SparkSession spark = SparkSession
                 .builder()
-                //  如果需要提交到remote spark则使用spark://host:port
+                //  如果需要作业要以jar包形式提交到remote spark，则使用spark://host:port
 //                .master("spark://10.0.0.50:7077")
-                //  如果需要提交到remote spark则使用local
+                //  如果idea中测试则使用local。
+                //  如果作业要以jar包形式提交到yarn则不设置master。
                 .master("local")
                 .appName("Java Spark SQL Starter ！！")
                 .enableHiveSupport()