/**
* 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 org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.mapreduce.Counters;
import org.apache.hadoop.mapreduce.TaskAttemptID;
import org.apache.hadoop.mapreduce.TaskID;
import org.apache.hadoop.mapreduce.TaskType;
import org.apache.avro.util.Utf8;
/**
* Event to record the failure of a task
*
*/
@InterfaceAudience.Private
@InterfaceStability.Unstable
public class TaskFailedEvent implements HistoryEvent {
private TaskFailed datum = null;
private TaskAttemptID failedDueToAttempt;
private TaskID id;
private TaskType taskType;
private long finishTime;
private String status;
private String error;
private Counters counters;
private static final Counters EMPTY_COUNTERS = new Counters();
/**
* Create an event to record task failure
* @param id Task ID
* @param finishTime Finish time of the task
* @param taskType Type of the task
* @param error Error String
* @param status Status
* @param failedDueToAttempt The attempt id due to which the task failed
* @param counters Counters for the task
*/
public TaskFailedEvent(TaskID id, long finishTime,
TaskType taskType, String error, String status,
TaskAttemptID failedDueToAttempt, Counters counters) {
this.id = id;
this.finishTime = finishTime;
this.taskType = taskType;
this.error = error;
this.status = status;
this.failedDueToAttempt = failedDueToAttempt;
this.counters = counters;
}
public TaskFailedEvent(TaskID id, long finishTime,
TaskType taskType, String error, String status,
TaskAttemptID failedDueToAttempt) {
this(id, finishTime, taskType, error, status,
failedDueToAttempt, EMPTY_COUNTERS);
}
TaskFailedEvent() {}
public Object getDatum() {
if(datum == null) {
datum = new TaskFailed();
datum.taskid = new Utf8(id.toString());
datum.error = new Utf8(error);
datum.finishTime = finishTime;
datum.taskType = new Utf8(taskType.name());
datum.failedDueToAttempt =
failedDueToAttempt == null
? null
: new Utf8(failedDueToAttempt.toString());
datum.status = new Utf8(status);
datum.counters = EventWriter.toAvro(counters);
}
return datum;
}
public void setDatum(Object odatum) {
this.datum = (TaskFailed)odatum;
this.id =
TaskID.forName(datum.taskid.toString());
this.taskType =
TaskType.valueOf(datum.taskType.toString());
this.finishTime = datum.finishTime;
this.error = datum.error.toString();
this.failedDueToAttempt =
datum.failedDueToAttempt == null
? null
: TaskAttemptID.forName(
datum.failedDueToAttempt.toString());
this.status = datum.status.toString();
this.counters =
EventReader.fromAvro(datum.counters);
}
/** Get the task id */
public TaskID getTaskId() { return id; }
/** Get the error string */
public String getError() { return error; }
/** Get the finish time of the attempt */
public long getFinishTime() {
return finishTime;
}
/** Get the task type */
public TaskType getTaskType() {
return taskType;
}
/** Get the attempt id due to which the task failed */
public TaskAttemptID getFailedAttemptID() {
return failedDueToAttempt;
}
/** Get the task status */
public String getTaskStatus() { return status; }
/** Get task counters */
public Counters getCounters() { return counters; }
/** Get the event type */
public EventType getEventType() {
return EventType.TASK_FAILED;
}
}