| /** |
| * 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.jobhistory; |
| |
| import java.util.Set; |
| |
| import org.apache.avro.util.Utf8; |
| import org.apache.hadoop.classification.InterfaceAudience; |
| import org.apache.hadoop.classification.InterfaceStability; |
| import org.apache.hadoop.mapreduce.TaskID; |
| import org.apache.hadoop.mapreduce.TaskType; |
| import org.apache.hadoop.util.StringUtils; |
| import org.apache.hadoop.yarn.api.records.timelineservice.TimelineEvent; |
| import org.apache.hadoop.yarn.api.records.timelineservice.TimelineMetric; |
| |
| /** |
| * Event to record the start of a task |
| * |
| */ |
| @InterfaceAudience.Private |
| @InterfaceStability.Unstable |
| public class TaskStartedEvent implements HistoryEvent { |
| private TaskStarted datum = new TaskStarted(); |
| |
| /** |
| * Create an event to record start of a task |
| * @param id Task Id |
| * @param startTime Start time of the task |
| * @param taskType Type of the task |
| * @param splitLocations Split locations, applicable for map tasks |
| */ |
| public TaskStartedEvent(TaskID id, long startTime, |
| TaskType taskType, String splitLocations) { |
| datum.setTaskid(new Utf8(id.toString())); |
| datum.setSplitLocations(new Utf8(splitLocations)); |
| datum.setStartTime(startTime); |
| datum.setTaskType(new Utf8(taskType.name())); |
| } |
| |
| TaskStartedEvent() {} |
| |
| public Object getDatum() { return datum; } |
| public void setDatum(Object datum) { this.datum = (TaskStarted)datum; } |
| |
| /** Get the task id */ |
| public TaskID getTaskId() { |
| return TaskID.forName(datum.getTaskid().toString()); |
| } |
| /** Get the split locations, applicable for map tasks */ |
| public String getSplitLocations() { |
| return datum.getSplitLocations().toString(); |
| } |
| /** Get the start time of the task */ |
| public long getStartTime() { return datum.getStartTime(); } |
| /** Get the task type */ |
| public TaskType getTaskType() { |
| return TaskType.valueOf(datum.getTaskType().toString()); |
| } |
| /** Get the event type */ |
| public EventType getEventType() { |
| return EventType.TASK_STARTED; |
| } |
| |
| @Override |
| public TimelineEvent toTimelineEvent() { |
| TimelineEvent tEvent = new TimelineEvent(); |
| tEvent.setId(StringUtils.toUpperCase(getEventType().name())); |
| tEvent.addInfo("TASK_TYPE", getTaskType().toString()); |
| tEvent.addInfo("START_TIME", getStartTime()); |
| tEvent.addInfo("SPLIT_LOCATIONS", getSplitLocations()); |
| return tEvent; |
| } |
| |
| @Override |
| public Set<TimelineMetric> getTimelineMetrics() { |
| return null; |
| } |
| |
| } |