| Package | Description | 
|---|---|
| org.apache.hadoop.mapred | |
| org.apache.hadoop.mapreduce | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
TaskID
TaskID represents the immutable and unique identifier for 
 a Map or Reduce Task. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
static TaskID | 
TaskID.downgrade(TaskID old)
Downgrade a new TaskID to an old one 
 | 
| Modifier and Type | Method and Description | 
|---|---|
static TaskID | 
TaskID.forName(String str)
Construct a TaskID object from given string. 
 | 
TaskID | 
TaskAttemptID.getTaskID()
Returns the  
TaskID object that this task attempt belongs to | 
| Constructor and Description | 
|---|
TaskAttemptID(TaskID taskId,
             int id)
Constructs a TaskAttemptID object from given  
TaskID. | 
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