/*
* 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.mapred;
/**
* TaskStateChangeListener is invoked by the CoronaJobInProgress when
* task status changes: task completion, task failure, etc.
*
* Things like handling the resources of the task can be handled here
*/
public interface TaskStateChangeListener {
/**
* This method is called when the task state changes
*
* @param state the new state of the task
* @param tip the task
* @param taskid the attempt that changed the state of the task
* @param host the host where the task ran.
*/
void taskStateChange(TaskStatus.State state, TaskInProgress tip,
TaskAttemptID taskid, String host);
}