YARN-2795. Fixed ResourceManager to not crash loading node-label data from HDFS in secure mode. Contributed by Wangda Tan.

hadoop-yarn-project/CHANGES.txt

@@ -849,6 +849,9 @@ Release 2.6.0 - UNRELEASED
     that were caused when adding log-upload-time via YARN-2703. (Xuan Gong via
     vinodkv)
 
+    YARN-2795. Fixed ResourceManager to not crash loading node-label data from
+    HDFS in secure mode. (Wangda Tan via vinodkv)
+
 Release 2.5.1 - 2014-09-05
 
   INCOMPATIBLE CHANGES

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceManager.java

@@ -23,9 +23,7 @@
 import java.net.InetSocketAddress;
 import java.security.PrivilegedExceptionAction;
 import java.util.ArrayList;
-import java.util.HashMap;
 import java.util.List;
-import java.util.Map;
 import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.LinkedBlockingQueue;
 
@@ -196,6 +194,16 @@ protected void serviceInit(Configuration conf) throws Exception {
     this.conf = conf;
     this.rmContext = new RMContextImpl();
     
+    // Set UGI and do login
+    // If security is enabled, use login user
+    // If security is not enabled, use current user
+    this.rmLoginUGI = UserGroupInformation.getCurrentUser();
+    try {
+      doSecureLogin();
+    } catch(IOException ie) {
+      throw new YarnRuntimeException("Failed to login", ie);
+    }
+    
     this.configurationProvider =
         ConfigurationProviderFactory.getConfigurationProvider(conf);
     this.configurationProvider.init(this.conf);
@@ -242,14 +250,13 @@ protected void serviceInit(Configuration conf) throws Exception {
     if (this.rmContext.isHAEnabled()) {
       HAUtil.verifyAndSetConfiguration(this.conf);
     }
+    
     createAndInitActiveServices();
 
     webAppAddress = WebAppUtils.getWebAppBindURL(this.conf,
                       YarnConfiguration.RM_BIND_HOST,
                       WebAppUtils.getRMWebAppURLWithoutScheme(this.conf));
 
-    this.rmLoginUGI = UserGroupInformation.getCurrentUser();
-
     super.serviceInit(this.conf);
   }
   
@@ -1019,17 +1026,13 @@ protected boolean areActiveServicesRunning() {
   }
 
   synchronized void transitionToActive() throws Exception {
-    if (rmContext.getHAServiceState() ==
-        HAServiceProtocol.HAServiceState.ACTIVE) {
+    if (rmContext.getHAServiceState() == HAServiceProtocol.HAServiceState.ACTIVE) {
       LOG.info("Already in active state");
       return;
     }
 
     LOG.info("Transitioning to active state");
 
-    // use rmLoginUGI to startActiveServices.
-    // in non-secure model, rmLoginUGI will be current UGI
-    // in secure model, rmLoginUGI will be LoginUser UGI
     this.rmLoginUGI.doAs(new PrivilegedExceptionAction<Void>() {
       @Override
       public Void run() throws Exception {
@@ -1071,12 +1074,6 @@ synchronized void transitionToStandby(boolean initialize)
 
   @Override
   protected void serviceStart() throws Exception {
-    try {
-      doSecureLogin();
-    } catch(IOException ie) {
-      throw new YarnRuntimeException("Failed to login", ie);
-    }
-
     if (this.rmContext.isHAEnabled()) {
       transitionToStandby(true);
     } else {
@@ -1084,7 +1081,8 @@ protected void serviceStart() throws Exception {
     }
 
     startWepApp();
-    if (getConfig().getBoolean(YarnConfiguration.IS_MINI_YARN_CLUSTER, false)) {
+    if (getConfig().getBoolean(YarnConfiguration.IS_MINI_YARN_CLUSTER,
+        false)) {
       int port = webApp.port();
       WebAppUtils.setRMWebAppPort(conf, port);
     }

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMHA.java

@@ -28,8 +28,6 @@
 
 import javax.ws.rs.core.MediaType;
 
-import org.junit.Assert;
-
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.apache.hadoop.conf.Configuration;
@@ -37,10 +35,10 @@
 import org.apache.hadoop.ha.HAServiceProtocol.HAServiceState;
 import org.apache.hadoop.ha.HAServiceProtocol.StateChangeRequestInfo;
 import org.apache.hadoop.ha.HealthCheckFailedException;
-import org.apache.hadoop.metrics2.MetricsSystem;
 import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem;
 import org.apache.hadoop.net.NetUtils;
 import org.apache.hadoop.security.AccessControlException;
+import org.apache.hadoop.security.UserGroupInformation;
 import org.apache.hadoop.service.AbstractService;
 import org.apache.hadoop.yarn.conf.HAUtil;
 import org.apache.hadoop.yarn.conf.YarnConfiguration;
@@ -54,6 +52,7 @@
 import org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics;
 import org.codehaus.jettison.json.JSONException;
 import org.codehaus.jettison.json.JSONObject;
+import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -64,7 +63,7 @@
 
 public class TestRMHA {
   private Log LOG = LogFactory.getLog(TestRMHA.class);
-  private final Configuration configuration = new YarnConfiguration();
+  private Configuration configuration;
   private MockRM rm = null;
   private RMApp app = null;
   private RMAppAttempt attempt = null;
@@ -82,6 +81,8 @@ public class TestRMHA {
 
   @Before
   public void setUp() throws Exception {
+    configuration = new Configuration();
+    UserGroupInformation.setConfiguration(configuration);
     configuration.setBoolean(YarnConfiguration.RM_HA_ENABLED, true);
     configuration.set(YarnConfiguration.RM_HA_IDS, RM1_NODE_ID + ","
         + RM2_NODE_ID);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestResourceManager.java

@@ -57,6 +57,7 @@ public class TestResourceManager {
   @Before
   public void setUp() throws Exception {
     Configuration conf = new YarnConfiguration();
+    UserGroupInformation.setConfiguration(conf);
     resourceManager = new ResourceManager();
     resourceManager.init(conf);
     resourceManager.getRMContext().getContainerTokenSecretManager().rollMasterKey();
@@ -254,7 +255,12 @@ public void testFilterOverrides() throws Exception {
             AuthenticationFilterInitializer.class.getName() + ", "
                 + this.getClass().getName() };
     for (String filterInitializer : filterInitializers) {
-      resourceManager = new ResourceManager();
+      resourceManager = new ResourceManager() {
+        @Override
+        protected void doSecureLogin() throws IOException {
+          // Skip the login.
+        }
+      };
       Configuration conf = new YarnConfiguration();
       conf.set(filterInitializerConfKey, filterInitializer);
       conf.set("hadoop.security.authentication", "kerberos");

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/security/TestDelegationTokenRenewer.java

@@ -808,7 +808,12 @@ public void testAppSubmissionWithInvalidDelegationToken() throws Exception {
         CommonConfigurationKeysPublic.HADOOP_SECURITY_AUTHENTICATION,
         "kerberos");
     UserGroupInformation.setConfiguration(conf);
-    MockRM rm = new MockRM(conf);
+    MockRM rm = new MockRM(conf) {
+      @Override
+      protected void doSecureLogin() throws IOException {
+        // Skip the login.
+      }
+    };
     ByteBuffer tokens = ByteBuffer.wrap("BOGUS".getBytes()); 
     ContainerLaunchContext amContainer =
         ContainerLaunchContext.newInstance(