@InterfaceAudience.Public @InterfaceStability.Stable public class TaskID extends TaskID
JobID, that this 
 TaskInProgress belongs to. Second part of the TaskID is either 'm' or 'r' 
 representing whether the task is a map task or a reduce task. 
 And the third part is the task number. task_200707121733_0003_m_000005 , which represents the
 fifth map task in the third job running at the jobtracker 
 started at 200707121733. 
 
 Applications should never construct or parse TaskID strings
 , but rather use appropriate constructors or forName(String) 
 method.
JobID, 
TaskAttemptIDidFormat, TASK, TASK_ID_REGEX, taskIdPattern| Constructor and Description | 
|---|
| TaskID() | 
| TaskID(JobID jobId,
      boolean isMap,
      int id)Deprecated. 
 | 
| TaskID(JobID jobId,
      TaskType type,
      int id)Constructs a TaskID object from given  JobID. | 
| TaskID(String jtIdentifier,
      int jobId,
      boolean isMap,
      int id)Deprecated. 
 | 
| TaskID(String jtIdentifier,
      int jobId,
      TaskType type,
      int id)Constructs a TaskInProgressId object from given parts. | 
| Modifier and Type | Method and Description | 
|---|---|
| static TaskID | downgrade(TaskID old)Downgrade a new TaskID to an old one | 
| static TaskID | forName(String str) | 
| JobID | getJobID()Returns the  JobIDobject that this tip belongs to. | 
| static String | getTaskIDsPattern(String jtIdentifier,
                 Integer jobId,
                 Boolean isMap,
                 Integer taskId)Deprecated. 
 | 
| static String | getTaskIDsPattern(String jtIdentifier,
                 Integer jobId,
                 TaskType type,
                 Integer taskId)Deprecated.  | 
| static TaskID | read(DataInput in)Deprecated.  | 
appendTo, compareTo, equals, getAllTaskTypes, getRepresentingCharacter, getTaskType, getTaskType, hashCode, isMap, readFields, toString, write@Deprecated public TaskID(JobID jobId, boolean isMap, int id)
TaskID(String, int, TaskType, int)JobID.jobId - JobID that this tip belongs toisMap - whether the tip is a mapid - the tip number@Deprecated public TaskID(String jtIdentifier, int jobId, boolean isMap, int id)
TaskID(org.apache.hadoop.mapreduce.JobID, TaskType,
 int)jtIdentifier - jobTracker identifierjobId - job numberisMap - whether the tip is a mapid - the tip numberpublic TaskID(JobID jobId, TaskType type, int id)
JobID.jobId - JobID that this tip belongs totype - the TaskTypeid - the tip numberpublic TaskID(String jtIdentifier, int jobId, TaskType type, int id)
jtIdentifier - jobTracker identifierjobId - job numbertype - the TaskTypeid - the tip numberpublic TaskID()
public static TaskID downgrade(TaskID old)
old - a new or old TaskID@Deprecated public static TaskID read(DataInput in) throws IOException
IOExceptionpublic JobID getJobID()
TaskIDJobID object that this tip belongs to.@Deprecated public static String getTaskIDsPattern(String jtIdentifier, Integer jobId, Boolean isMap, Integer taskId)
getTaskIDsPattern(String, Integer, TaskType,
 Integer)TaskID.getTaskIDsPattern(null, null, true, 1);which will return :
"task_[^_]*_[0-9]*_m_000001*"
jtIdentifier - jobTracker identifier, or nulljobId - job number, or nullisMap - whether the tip is a map, or nulltaskId - taskId number, or null@Deprecated public static String getTaskIDsPattern(String jtIdentifier, Integer jobId, TaskType type, Integer taskId)
TaskID.getTaskIDsPattern(null, null, true, 1);which will return :
"task_[^_]*_[0-9]*_m_000001*"
jtIdentifier - jobTracker identifier, or nulljobId - job number, or nulltype - the TaskType, or nulltaskId - taskId number, or nullpublic static TaskID forName(String str) throws IllegalArgumentException
IllegalArgumentExceptionCopyright © 2023 Apache Software Foundation. All rights reserved.