| /** |
| * 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 static org.apache.hadoop.http.HttpServer2.HTTP_MAX_THREADS_KEY; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| 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.util.ExitUtil; |
| 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.webapp.AMSWebApp; |
| import org.apache.hadoop.yarn.webapp.WebApp; |
| import org.apache.hadoop.yarn.webapp.WebApps; |
| |
| /** |
| * Metrics collector web server |
| */ |
| public class AMSApplicationServer extends CompositeService { |
| |
| public static final int SHUTDOWN_HOOK_PRIORITY = 30; |
| private static final Log LOG = LogFactory.getLog(AMSApplicationServer.class); |
| |
| TimelineMetricStore timelineMetricStore; |
| private WebApp webApp; |
| private TimelineMetricConfiguration metricConfiguration; |
| |
| public AMSApplicationServer() { |
| super(AMSApplicationServer.class.getName()); |
| } |
| |
| @Override |
| protected void serviceInit(Configuration conf) throws Exception { |
| metricConfiguration = TimelineMetricConfiguration.getInstance(); |
| metricConfiguration.initialize(); |
| timelineMetricStore = createTimelineMetricStore(conf); |
| addIfService(timelineMetricStore); |
| super.serviceInit(conf); |
| } |
| |
| @Override |
| protected void serviceStart() throws Exception { |
| DefaultMetricsSystem.initialize("AmbariMetricsSystem"); |
| JvmMetrics.initSingleton("AmbariMetricsSystem", null); |
| |
| startWebApp(); |
| super.serviceStart(); |
| } |
| |
| @Override |
| protected void serviceStop() throws Exception { |
| if (webApp != null) { |
| webApp.stop(); |
| } |
| |
| DefaultMetricsSystem.shutdown(); |
| super.serviceStop(); |
| } |
| |
| static AMSApplicationServer launchAMSApplicationServer(String[] args) { |
| Thread.setDefaultUncaughtExceptionHandler(new YarnUncaughtExceptionHandler()); |
| StringUtils.startupShutdownMessage(AMSApplicationServer.class, args, LOG); |
| AMSApplicationServer amsApplicationServer = null; |
| try { |
| amsApplicationServer = new AMSApplicationServer(); |
| ShutdownHookManager.get().addShutdownHook( |
| new CompositeServiceShutdownHook(amsApplicationServer), |
| SHUTDOWN_HOOK_PRIORITY); |
| YarnConfiguration conf = new YarnConfiguration(); |
| amsApplicationServer.init(conf); |
| amsApplicationServer.start(); |
| } catch (Throwable t) { |
| LOG.fatal("Error starting AMSApplicationServer", t); |
| ExitUtil.terminate(-1, "Error starting AMSApplicationServer"); |
| } |
| return amsApplicationServer; |
| } |
| |
| public static void main(String[] args) { |
| launchAMSApplicationServer(args); |
| } |
| |
| 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 metrics collector at " + bindAddress); |
| try { |
| Configuration conf = metricConfiguration.getMetricsConf(); |
| conf.set(HTTP_MAX_THREADS_KEY, 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("timeline", null, null, "ws") |
| .withHttpPolicy(conf, policy) |
| .at(bindAddress) |
| .start(new AMSWebApp(timelineMetricStore)); |
| } catch (Exception e) { |
| String msg = "AHSWebApp failed to start."; |
| LOG.error(msg, e); |
| throw new YarnRuntimeException(msg, e); |
| } |
| } |
| |
| } |