| /** |
| * 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.yarn.server.applicationhistoryservice; |
| |
| 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.http.HttpConfig; |
| import org.apache.hadoop.metrics2.lib.DefaultMetricsSystem; |
| import org.apache.hadoop.metrics2.source.JvmMetrics; |
| import org.apache.hadoop.service.CompositeService; |
| import org.apache.hadoop.service.Service; |
| import org.apache.hadoop.util.ExitUtil; |
| import org.apache.hadoop.util.ReflectionUtils; |
| import org.apache.hadoop.util.ShutdownHookManager; |
| import org.apache.hadoop.util.StringUtils; |
| import org.apache.hadoop.yarn.YarnUncaughtExceptionHandler; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.exceptions.YarnRuntimeException; |
| import org.apache.hadoop.yarn.server.applicationhistoryservice.metrics.timeline.HBaseTimelineMetricsService; |
| import org.apache.hadoop.yarn.server.applicationhistoryservice.metrics.timeline.TimelineMetricConfiguration; |
| import org.apache.hadoop.yarn.server.applicationhistoryservice.metrics.timeline.TimelineMetricStore; |
| import org.apache.hadoop.yarn.server.applicationhistoryservice.timeline.MemoryTimelineStore; |
| import org.apache.hadoop.yarn.server.applicationhistoryservice.timeline.TimelineStore; |
| import org.apache.hadoop.yarn.server.applicationhistoryservice.timeline.LeveldbTimelineStore; |
| import org.apache.hadoop.yarn.server.applicationhistoryservice.webapp.AHSWebApp; |
| import org.apache.hadoop.yarn.webapp.WebApp; |
| import org.apache.hadoop.yarn.webapp.WebApps; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| |
| import static org.apache.hadoop.yarn.server.applicationhistoryservice.metrics.timeline.TimelineMetricConfiguration.DISABLE_APPLICATION_TIMELINE_STORE; |
| |
| /** |
| * History server that keeps track of all types of history in the cluster. |
| * Application specific history to start with. |
| */ |
| public class ApplicationHistoryServer extends CompositeService { |
| |
| public static final int SHUTDOWN_HOOK_PRIORITY = 30; |
| private static final Log LOG = |
| LogFactory.getLog(ApplicationHistoryServer.class); |
| |
| ApplicationHistoryClientService ahsClientService; |
| ApplicationHistoryManager historyManager; |
| TimelineStore timelineStore; |
| TimelineMetricStore timelineMetricStore; |
| private WebApp webApp; |
| private TimelineMetricConfiguration metricConfiguration; |
| |
| public ApplicationHistoryServer() { |
| super(ApplicationHistoryServer.class.getName()); |
| } |
| |
| @Override |
| protected void serviceInit(Configuration conf) throws Exception { |
| metricConfiguration = TimelineMetricConfiguration.getInstance(); |
| metricConfiguration.initialize(); |
| historyManager = createApplicationHistory(); |
| ahsClientService = createApplicationHistoryClientService(historyManager); |
| addService(ahsClientService); |
| addService((Service) historyManager); |
| timelineStore = createTimelineStore(conf); |
| timelineMetricStore = createTimelineMetricStore(conf); |
| addIfService(timelineStore); |
| addIfService(timelineMetricStore); |
| super.serviceInit(conf); |
| } |
| |
| @Override |
| protected void serviceStart() throws Exception { |
| DefaultMetricsSystem.initialize("ApplicationHistoryServer"); |
| JvmMetrics.initSingleton("ApplicationHistoryServer", null); |
| |
| startWebApp(); |
| super.serviceStart(); |
| } |
| |
| @Override |
| protected void serviceStop() throws Exception { |
| if (webApp != null) { |
| webApp.stop(); |
| } |
| |
| DefaultMetricsSystem.shutdown(); |
| super.serviceStop(); |
| } |
| |
| @Private |
| @VisibleForTesting |
| public ApplicationHistoryClientService getClientService() { |
| return this.ahsClientService; |
| } |
| |
| protected ApplicationHistoryClientService createApplicationHistoryClientService( |
| ApplicationHistoryManager historyManager) { |
| return new ApplicationHistoryClientService(historyManager, metricConfiguration); |
| } |
| |
| protected ApplicationHistoryManager createApplicationHistory() { |
| return new ApplicationHistoryManagerImpl(); |
| } |
| |
| protected ApplicationHistoryManager getApplicationHistory() { |
| return this.historyManager; |
| } |
| |
| static ApplicationHistoryServer launchAppHistoryServer(String[] args) { |
| Thread |
| .setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler()); |
| StringUtils.startupShutdownMessage(ApplicationHistoryServer.class, args, |
| LOG); |
| ApplicationHistoryServer appHistoryServer = null; |
| try { |
| appHistoryServer = new ApplicationHistoryServer(); |
| ShutdownHookManager.get().addShutdownHook( |
| new CompositeServiceShutdownHook(appHistoryServer), |
| SHUTDOWN_HOOK_PRIORITY); |
| YarnConfiguration conf = new YarnConfiguration(); |
| appHistoryServer.init(conf); |
| appHistoryServer.start(); |
| } catch (Throwable t) { |
| LOG.fatal("Error starting ApplicationHistoryServer", t); |
| ExitUtil.terminate(-1, "Error starting ApplicationHistoryServer"); |
| } |
| return appHistoryServer; |
| } |
| |
| public static void main(String[] args) { |
| launchAppHistoryServer(args); |
| } |
| |
| protected ApplicationHistoryManager createApplicationHistoryManager( |
| Configuration conf) { |
| return new ApplicationHistoryManagerImpl(); |
| } |
| |
| protected TimelineStore createTimelineStore(Configuration conf) { |
| if (conf.getBoolean(DISABLE_APPLICATION_TIMELINE_STORE, true)) { |
| LOG.info("Explicitly disabled application timeline store."); |
| return new MemoryTimelineStore(); |
| } |
| return ReflectionUtils.newInstance(conf.getClass( |
| YarnConfiguration.TIMELINE_SERVICE_STORE, LeveldbTimelineStore.class, |
| TimelineStore.class), conf); |
| } |
| |
| protected TimelineMetricStore createTimelineMetricStore(Configuration conf) { |
| LOG.info("Creating metrics store."); |
| return new HBaseTimelineMetricsService(metricConfiguration); |
| } |
| |
| protected void startWebApp() { |
| String bindAddress = null; |
| try { |
| bindAddress = metricConfiguration.getWebappAddress(); |
| } catch (Exception e) { |
| throw new ExceptionInInitializerError("Cannot find bind address"); |
| } |
| LOG.info("Instantiating AHSWebApp at " + bindAddress); |
| try { |
| Configuration conf = metricConfiguration.getMetricsConf(); |
| conf.set("hadoop.http.max.threads", String.valueOf(metricConfiguration |
| .getTimelineMetricsServiceHandlerThreadCount())); |
| HttpConfig.Policy policy = HttpConfig.Policy.valueOf( |
| conf.get(TimelineMetricConfiguration.TIMELINE_SERVICE_HTTP_POLICY, |
| HttpConfig.Policy.HTTP_ONLY.name())); |
| webApp = |
| WebApps |
| .$for("applicationhistory", ApplicationHistoryClientService.class, |
| ahsClientService, "ws") |
| .withHttpPolicy(conf, policy) |
| .at(bindAddress) |
| .start(new AHSWebApp(timelineStore, timelineMetricStore, |
| ahsClientService)); |
| } catch (Exception e) { |
| String msg = "AHSWebApp failed to start."; |
| LOG.error(msg, e); |
| throw new YarnRuntimeException(msg, e); |
| } |
| } |
| |
| /** |
| * @return ApplicationTimelineStore |
| */ |
| @Private |
| @VisibleForTesting |
| public TimelineStore getTimelineStore() { |
| return timelineStore; |
| } |
| } |