| /** |
| * 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.test.system; |
| |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.mapred.JobTracker; |
| import org.apache.hadoop.mapred.TaskStatus; |
| import org.apache.hadoop.mapreduce.TaskID; |
| |
| /** |
| * Task state information of a TaskInProgress as seen by the {@link JobTracker} |
| */ |
| public interface TaskInfo extends Writable { |
| /** |
| * Gets the task id of the TaskInProgress. |
| * |
| * @return id of the task. |
| */ |
| TaskID getTaskID(); |
| |
| /** |
| * Number of times task attempts have failed for the given TaskInProgress. |
| * <br/> |
| * |
| * @return number of failed task attempts. |
| */ |
| int numFailedAttempts(); |
| |
| /** |
| * Number of times task attempts have been killed for the given TaskInProgress |
| * <br/> |
| * |
| * @return number of killed task attempts. |
| */ |
| int numKilledAttempts(); |
| |
| /** |
| * Gets the progress of the Task in percentage will be in range of 0.0-1.0 |
| * <br/> |
| * |
| * @return progress of task in percentage. |
| */ |
| double getProgress(); |
| |
| /** |
| * Number of attempts currently running for the given TaskInProgress.<br/> |
| * |
| * @return number of running attempts. |
| */ |
| int numRunningAttempts(); |
| |
| /** |
| * Array of TaskStatus objects that are related to the corresponding |
| * TaskInProgress object.The task status of the tip is only populated |
| * once a tracker reports back the task status.<br/> |
| * |
| * @return list of task statuses. |
| */ |
| TaskStatus[] getTaskStatus(); |
| |
| /** |
| * Gets a list of tracker on which the task attempts are scheduled/running. |
| * Can be empty if the task attempt has succeeded <br/> |
| * |
| * @return list of trackers |
| */ |
| String[] getTaskTrackers(); |
| |
| /** |
| * Gets if the current TaskInProgress is a setup or cleanup tip. <br/> |
| * |
| * @return true if setup/cleanup |
| */ |
| boolean isSetupOrCleanup(); |
| } |