YARN-11495. Fix typos in hadoop-yarn-server-web-proxy. (#5652). Contributed by Shilun Fan.

Signed-off-by: Ayush Saxena <ayushsaxena@apache.org>

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/AppReportFetcher.java

@@ -148,7 +148,7 @@ public class AppReportFetcher {
 
   /*
    * This class creates a bundle of the application report and the source from
-   * where the the report was fetched. This allows the WebAppProxyServlet
+   * where the report was fetched. This allows the WebAppProxyServlet
    * to make decisions for the application report based on the source.
    */
   static class FetchedAppReport {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/ProxyUriUtils.java

@@ -164,13 +164,13 @@ public class ProxyUriUtils {
           originalUri == null ? null : originalUri.getQuery(),
           originalUri == null ? null : originalUri.getFragment());
     } catch (URISyntaxException e) {
-      throw new RuntimeException("Could not proxify "+originalUri,e);
+      throw new RuntimeException("Could not proxy "+originalUri, e);
     }
   }
   
   /**
    * Create a URI form a no scheme Url, such as is returned by the AM.
-   * @param noSchemeUrl the URL formate returned by an AM
+   * @param noSchemeUrl the URL format returned by an AM
    * @return a URI with an http scheme
    * @throws URISyntaxException if the url is not formatted correctly.
    */

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/WebAppProxyServer.java

@@ -86,7 +86,7 @@ public class WebAppProxyServer extends CompositeService {
   }
 
   /**
-   * Log in as the Kerberose principal designated for the proxy
+   * Log in as the Kerberos principal designated for the proxy
    * @param conf the configuration holding this information in it.
    * @throws IOException on any error.
    */

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/WebAppProxyServlet.java

@@ -103,7 +103,7 @@ public class WebAppProxyServlet extends HttpServlet {
   /**
    * HTTP methods.
    */
-  private enum HTTP { GET, POST, HEAD, PUT, DELETE };
+  private enum HTTP { GET, POST, HEAD, PUT, DELETE }
 
   /**
    * Empty Hamlet class.

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/test/java/org/apache/hadoop/yarn/server/webproxy/TestWebAppProxyServlet.java

@@ -345,7 +345,7 @@ public class TestWebAppProxyServlet {
     AppReportFetcherForTest appReportFetcher = proxy.proxy.appReportFetcher;
 
     try {
-      //set AHS_ENBALED = false to simulate getting the app report from RM
+      //set AHS_ENABLED = false to simulate getting the app report from RM
       configuration.setBoolean(YarnConfiguration.APPLICATION_HISTORY_ENABLED,
           false);
       ApplicationId app = ApplicationId.newInstance(0, 0);
@@ -366,7 +366,7 @@ public class TestWebAppProxyServlet {
               "/cluster" + "/app/" + app.toString();
       assertEquals(proxyConn.getURL().toString(), appAddressInRm);
 
-      //set AHS_ENBALED = true to simulate getting the app report from AHS
+      //set AHS_ENABLED = true to simulate getting the app report from AHS
       configuration.setBoolean(YarnConfiguration.APPLICATION_HISTORY_ENABLED,
           true);
       proxyConn = (HttpURLConnection) url.openConnection();
@@ -655,7 +655,7 @@ public class TestWebAppProxyServlet {
     /*
      * If this method is called with isTrackingUrl=false, no tracking url
      * will set in the app report. Hence, there will be a connection exception
-     * when the prxyCon tries to connect.
+     * when the proxyCon tries to connect.
      */
     private FetchedAppReport getDefaultApplicationReport(ApplicationId appId,
         boolean isTrackingUrl) {