| /** |
| * 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.hadoop.mapreduce.v2.hs; |
| |
| import java.io.IOException; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.classification.InterfaceAudience.Private; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.mapred.JobConf; |
| import org.apache.hadoop.mapreduce.MRConfig; |
| import org.apache.hadoop.mapreduce.v2.jobhistory.JHAdminConfig; |
| import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem; |
| import org.apache.hadoop.metrics2.source.JvmMetrics; |
| import org.apache.hadoop.security.SecurityUtil; |
| import org.apache.hadoop.util.ExitUtil; |
| import org.apache.hadoop.util.ShutdownHookManager; |
| import org.apache.hadoop.util.StringUtils; |
| import org.apache.hadoop.yarn.YarnException; |
| import org.apache.hadoop.yarn.YarnUncaughtExceptionHandler; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.event.Dispatcher; |
| import org.apache.hadoop.yarn.logaggregation.AggregatedLogDeletionService; |
| import org.apache.hadoop.yarn.service.CompositeService; |
| |
| /****************************************************************** |
| * {@link JobHistoryServer} is responsible for servicing all job history |
| * related requests from client. |
| * |
| *****************************************************************/ |
| public class JobHistoryServer extends CompositeService { |
| |
| /** |
| * Priority of the JobHistoryServer shutdown hook. |
| */ |
| public static final int SHUTDOWN_HOOK_PRIORITY = 30; |
| |
| public static final long historyServerTimeStamp = System.currentTimeMillis(); |
| |
| private static final Log LOG = LogFactory.getLog(JobHistoryServer.class); |
| private HistoryContext historyContext; |
| private HistoryClientService clientService; |
| private JobHistory jobHistoryService; |
| private JHSDelegationTokenSecretManager jhsDTSecretManager; |
| private AggregatedLogDeletionService aggLogDelService; |
| |
| public JobHistoryServer() { |
| super(JobHistoryServer.class.getName()); |
| } |
| |
| @Override |
| public synchronized void init(Configuration conf) { |
| Configuration config = new YarnConfiguration(conf); |
| |
| config.setBoolean(Dispatcher.DISPATCHER_EXIT_ON_ERROR_KEY, true); |
| |
| try { |
| doSecureLogin(conf); |
| } catch(IOException ie) { |
| throw new YarnException("History Server Failed to login", ie); |
| } |
| jobHistoryService = new JobHistory(); |
| historyContext = (HistoryContext)jobHistoryService; |
| this.jhsDTSecretManager = createJHSSecretManager(conf); |
| clientService = new HistoryClientService(historyContext, |
| this.jhsDTSecretManager); |
| aggLogDelService = new AggregatedLogDeletionService(); |
| addService(jobHistoryService); |
| addService(clientService); |
| addService(aggLogDelService); |
| super.init(config); |
| } |
| |
| protected JHSDelegationTokenSecretManager createJHSSecretManager( |
| Configuration conf) { |
| long secretKeyInterval = |
| conf.getLong(MRConfig.DELEGATION_KEY_UPDATE_INTERVAL_KEY, |
| MRConfig.DELEGATION_KEY_UPDATE_INTERVAL_DEFAULT); |
| long tokenMaxLifetime = |
| conf.getLong(MRConfig.DELEGATION_TOKEN_MAX_LIFETIME_KEY, |
| MRConfig.DELEGATION_TOKEN_MAX_LIFETIME_DEFAULT); |
| long tokenRenewInterval = |
| conf.getLong(MRConfig.DELEGATION_TOKEN_RENEW_INTERVAL_KEY, |
| MRConfig.DELEGATION_TOKEN_RENEW_INTERVAL_DEFAULT); |
| |
| return new JHSDelegationTokenSecretManager(secretKeyInterval, |
| tokenMaxLifetime, tokenRenewInterval, 3600000); |
| } |
| |
| protected void doSecureLogin(Configuration conf) throws IOException { |
| SecurityUtil.login(conf, JHAdminConfig.MR_HISTORY_KEYTAB, |
| JHAdminConfig.MR_HISTORY_PRINCIPAL); |
| } |
| |
| @Override |
| public void start() { |
| DefaultMetricsSystem.initialize("JobHistoryServer"); |
| JvmMetrics.initSingleton("JobHistoryServer", null); |
| try { |
| jhsDTSecretManager.startThreads(); |
| } catch(IOException io) { |
| LOG.error("Error while starting the Secret Manager threads", io); |
| throw new RuntimeException(io); |
| } |
| super.start(); |
| } |
| |
| @Override |
| public void stop() { |
| jhsDTSecretManager.stopThreads(); |
| DefaultMetricsSystem.shutdown(); |
| super.stop(); |
| } |
| |
| @Private |
| public HistoryClientService getClientService() { |
| return this.clientService; |
| } |
| |
| static JobHistoryServer launchJobHistoryServer(String[] args) { |
| Thread. |
| setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler()); |
| StringUtils.startupShutdownMessage(JobHistoryServer.class, args, LOG); |
| JobHistoryServer jobHistoryServer = null; |
| try { |
| jobHistoryServer = new JobHistoryServer(); |
| ShutdownHookManager.get().addShutdownHook( |
| new CompositeServiceShutdownHook(jobHistoryServer), |
| SHUTDOWN_HOOK_PRIORITY); |
| YarnConfiguration conf = new YarnConfiguration(new JobConf()); |
| jobHistoryServer.init(conf); |
| jobHistoryServer.start(); |
| } catch (Throwable t) { |
| LOG.fatal("Error starting JobHistoryServer", t); |
| ExitUtil.terminate(-1, "Error starting JobHistoryServer"); |
| } |
| return jobHistoryServer; |
| } |
| |
| public static void main(String[] args) { |
| launchJobHistoryServer(args); |
| } |
| } |