YARN-10037. Upgrade build tools for YARN Web UI v2.

(cherry picked from commit 7868da894ae148bff1d5e5159a2bc1aad44fd6aa)
(cherry picked from commit 2eb6bf6bb104b5fda4bbd40b8c06827c63575fd0)

 Conflicts:
     hadoop-project/pom.xml
diff --git a/hadoop-project/pom.xml b/hadoop-project/pom.xml
index e1da314..f7c54b9 100644
--- a/hadoop-project/pom.xml
+++ b/hadoop-project/pom.xml
@@ -146,7 +146,7 @@
     <surefire.fork.timeout>900</surefire.fork.timeout>
     <aws-java-sdk.version>1.11.271</aws-java-sdk.version>
     <hsqldb.version>2.3.4</hsqldb.version>
-    <frontend-maven-plugin.version>1.5</frontend-maven-plugin.version>
+    <frontend-maven-plugin.version>1.6</frontend-maven-plugin.version>
     <!-- the version of Hadoop declared in the version resources; can be overridden
     so that Hadoop 3.x can declare itself a 2.x artifact. -->
     <declared.hadoop.version>${project.version}</declared.hadoop.version>
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/README.md b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/README.md
index 22cdb12..77071c2 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/README.md
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/README.md
@@ -37,7 +37,7 @@
 
 You will need the following things properly installed on your computer.
 
-* Install [Yarn](https://yarnpkg.com) v0.21.3
+* Install [Yarn](https://yarnpkg.com) v1.21.1
 * Install [Bower](http://bower.io/) v1.8.8
 * Install all dependencies by running `yarn install` & `bower install`
 
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/pom.xml b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/pom.xml
index e09b0f9..66df22f 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/pom.xml
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/pom.xml
@@ -147,8 +147,8 @@
                   <goal>install-node-and-yarn</goal>
                 </goals>
                 <configuration>
-                  <nodeVersion>v5.12.0</nodeVersion>
-                  <yarnVersion>v0.21.3</yarnVersion>
+                  <nodeVersion>v8.17.0</nodeVersion>
+                  <yarnVersion>v1.21.1</yarnVersion>
                 </configuration>
               </execution>
               <execution>