/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.twill.internal.yarn; import com.google.common.base.Joiner; import com.google.common.base.Throwables; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.io.Text; import org.apache.hadoop.security.Credentials; import org.apache.hadoop.security.SecurityUtil; import org.apache.hadoop.security.UserGroupInformation; import org.apache.hadoop.security.token.Token; import org.apache.hadoop.security.token.TokenIdentifier; import org.apache.hadoop.yarn.api.records.ApplicationId; import org.apache.hadoop.yarn.api.records.ContainerLaunchContext; import org.apache.hadoop.yarn.client.api.YarnClient; import org.apache.hadoop.yarn.conf.HAUtil; import org.apache.hadoop.yarn.conf.YarnConfiguration; import org.apache.hadoop.yarn.util.ConverterUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import java.net.InetSocketAddress; import java.util.ArrayList; import java.util.List; /** * <p> * The service implementation of {@link YarnAppClient} for Apache Hadoop 2.3 and beyond. * * The {@link VersionDetectYarnAppClientFactory} class will decide to return instance of this class for * Apache Hadoop 2.3 and beyond. * </p> */ @SuppressWarnings("unused") public class Hadoop23YarnAppClient extends Hadoop21YarnAppClient { private static final Logger LOG = LoggerFactory.getLogger(Hadoop23YarnAppClient.class); public Hadoop23YarnAppClient(Configuration configuration) { super(configuration); } /** * Overrides parent method to adds RM delegation token to the given context. If YARN is running with HA RM, * delegation tokens for each RM service will be added. */ protected void addRMToken(ContainerLaunchContext context, YarnClient yarnClient, ApplicationId appId) { if (!UserGroupInformation.isSecurityEnabled()) { return; } try { Text renewer = new Text(UserGroupInformation.getCurrentUser().getShortUserName()); org.apache.hadoop.yarn.api.records.Token rmDelegationToken = yarnClient.getRMDelegationToken(renewer); // The following logic is copied from ClientRMProxy.getRMDelegationTokenService, which is not available in // YARN older than 2.4 List<String> services = new ArrayList<>(); if (HAUtil.isHAEnabled(configuration)) { // If HA is enabled, we need to enumerate all RM hosts // and add the corresponding service name to the token service // Copy the yarn conf since we need to modify it to get the RM addresses YarnConfiguration yarnConf = new YarnConfiguration(configuration); for (String rmId : HAUtil.getRMHAIds(configuration)) { yarnConf.set(YarnConfiguration.RM_HA_ID, rmId); InetSocketAddress address = yarnConf.getSocketAddr(YarnConfiguration.RM_ADDRESS, YarnConfiguration.DEFAULT_RM_ADDRESS, YarnConfiguration.DEFAULT_RM_PORT); services.add(SecurityUtil.buildTokenService(address).toString()); } } else { services.add(SecurityUtil.buildTokenService(YarnUtils.getRMAddress(configuration)).toString()); } Credentials credentials = YarnUtils.decodeCredentials(context.getTokens()); // casting needed for later Hadoop version @SuppressWarnings("RedundantCast") Token<TokenIdentifier> token = ConverterUtils.convertFromYarn(rmDelegationToken, (InetSocketAddress) null); token.setService(new Text(Joiner.on(',').join(services))); credentials.addToken(new Text(token.getService()), token); LOG.debug("Added RM delegation token {} for application {}", token, appId); credentials.addToken(token.getService(), token); context.setTokens(YarnUtils.encodeCredentials(credentials)); } catch (Exception e) { throw Throwables.propagate(e); } } }