| Package | Description | 
|---|---|
| org.apache.hadoop.mapred | |
| org.apache.hadoop.mapreduce | |
| org.apache.hadoop.mapreduce.tools | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | TaskAttemptIDTaskAttemptID represents the immutable and unique identifier for 
 a task attempt. | 
| Modifier and Type | Method and Description | 
|---|---|
| static TaskAttemptID | TaskAttemptID. downgrade(TaskAttemptID old)Downgrade a new TaskAttemptID to an old one | 
| Modifier and Type | Method and Description | 
|---|---|
| static TaskAttemptID | TaskAttemptID. forName(String str)Construct a TaskAttemptID object from given string | 
| TaskAttemptID | TaskCompletionEvent. getTaskAttemptId()Returns task id. | 
| TaskAttemptID | TaskAttemptContext. getTaskAttemptID()Get the unique name for this task attempt. | 
| Modifier and Type | Method and Description | 
|---|---|
| void | Job. failTask(TaskAttemptID taskId)Fail indicated task attempt. | 
| org.apache.hadoop.mapreduce.v2.LogParams | Cluster. getLogParams(JobID jobID,
            TaskAttemptID taskAttemptID)Get log parameters for the specified jobID or taskAttemptID | 
| String[] | Job. getTaskDiagnostics(TaskAttemptID taskid)Gets the diagnostic messages for a given task attempt. | 
| void | Job. killTask(TaskAttemptID taskId)Kill indicated task attempt. | 
| protected void | TaskCompletionEvent. setTaskAttemptId(TaskAttemptID taskId)Sets task id. | 
| Constructor and Description | 
|---|
| TaskCompletionEvent(int eventId,
                   TaskAttemptID taskId,
                   int idWithinJob,
                   boolean isMap,
                   TaskCompletionEvent.Status status,
                   String taskTrackerHttp)Constructor. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected static String | CLI. getTaskLogURL(TaskAttemptID taskId,
             String baseUrl) | 
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