| /** |
| * 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.app; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.mapreduce.MRJobConfig; |
| import org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId; |
| import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEvent; |
| import org.apache.hadoop.mapreduce.v2.app.job.event.TaskAttemptEventType; |
| import org.apache.hadoop.yarn.event.EventHandler; |
| import org.apache.hadoop.yarn.util.AbstractLivelinessMonitor; |
| import org.apache.hadoop.yarn.util.SystemClock; |
| |
| /** |
| * This class generates TA_TIMED_OUT if the task attempt stays in FINISHING |
| * state for too long. |
| */ |
| @SuppressWarnings({"unchecked", "rawtypes"}) |
| public class TaskAttemptFinishingMonitor extends |
| AbstractLivelinessMonitor<TaskAttemptId> { |
| |
| private EventHandler eventHandler; |
| |
| public TaskAttemptFinishingMonitor(EventHandler eventHandler) { |
| super("TaskAttemptFinishingMonitor", SystemClock.getInstance()); |
| this.eventHandler = eventHandler; |
| } |
| |
| public void init(Configuration conf) { |
| super.init(conf); |
| int expireIntvl = conf.getInt(MRJobConfig.TASK_EXIT_TIMEOUT, |
| MRJobConfig.TASK_EXIT_TIMEOUT_DEFAULT); |
| int checkIntvl = conf.getInt( |
| MRJobConfig.TASK_EXIT_TIMEOUT_CHECK_INTERVAL_MS, |
| MRJobConfig.TASK_EXIT_TIMEOUT_CHECK_INTERVAL_MS_DEFAULT); |
| |
| setExpireInterval(expireIntvl); |
| setMonitorInterval(checkIntvl); |
| } |
| |
| @Override |
| protected void expire(TaskAttemptId id) { |
| eventHandler.handle( |
| new TaskAttemptEvent(id, |
| TaskAttemptEventType.TA_TIMED_OUT)); |
| } |
| } |