@InterfaceAudience.Public @InterfaceStability.Stable public class TaskAttemptID extends TaskAttemptID
TaskID
, that this TaskAttemptID belongs to.
Second part is the task attempt number. attempt_200707121733_0003_m_000005_0
, which represents the
zeroth task attempt for the fifth map task in the third job
running at the jobtracker started at 200707121733
.
Applications should never construct or parse TaskAttemptID strings
, but rather use appropriate constructors or forName(String)
method.
ATTEMPT
Constructor and Description |
---|
TaskAttemptID() |
TaskAttemptID(String jtIdentifier,
int jobId,
boolean isMap,
int taskId,
int id)
Deprecated.
|
TaskAttemptID(String jtIdentifier,
int jobId,
TaskType type,
int taskId,
int id)
Constructs a TaskId object from given parts.
|
TaskAttemptID(TaskID taskId,
int id)
Constructs a TaskAttemptID object from given
TaskID . |
Modifier and Type | Method and Description |
---|---|
static TaskAttemptID |
downgrade(TaskAttemptID old)
Downgrade a new TaskAttemptID to an old one
|
static TaskAttemptID |
forName(String str)
Construct a TaskAttemptID object from given string
|
JobID |
getJobID()
Returns the
JobID object that this task attempt belongs to |
static String |
getTaskAttemptIDsPattern(String jtIdentifier,
Integer jobId,
Boolean isMap,
Integer taskId,
Integer attemptId)
Deprecated.
|
static String |
getTaskAttemptIDsPattern(String jtIdentifier,
Integer jobId,
TaskType type,
Integer taskId,
Integer attemptId)
Deprecated.
|
TaskID |
getTaskID()
Returns the
TaskID object that this task attempt belongs to |
static TaskAttemptID |
read(DataInput in)
Deprecated.
|
appendTo, compareTo, equals, getTaskType, hashCode, isMap, readFields, toString, write
public TaskAttemptID(TaskID taskId, int id)
TaskID
.taskId
- TaskID that this task belongs toid
- the task attempt number@Deprecated public TaskAttemptID(String jtIdentifier, int jobId, boolean isMap, int taskId, int id)
TaskAttemptID(String, int, TaskType, int, int)
.jtIdentifier
- jobTracker identifierjobId
- job numberisMap
- whether the tip is a maptaskId
- taskId numberid
- the task attempt numberpublic TaskAttemptID(String jtIdentifier, int jobId, TaskType type, int taskId, int id)
jtIdentifier
- jobTracker identifierjobId
- job numbertype
- the TaskTypetaskId
- taskId numberid
- the task attempt numberpublic TaskAttemptID()
public static TaskAttemptID downgrade(TaskAttemptID old)
old
- the new idpublic TaskID getTaskID()
TaskAttemptID
TaskID
object that this task attempt belongs togetTaskID
in class TaskAttemptID
public JobID getJobID()
TaskAttemptID
JobID
object that this task attempt belongs togetJobID
in class TaskAttemptID
@Deprecated public static TaskAttemptID read(DataInput in) throws IOException
IOException
public static TaskAttemptID forName(String str) throws IllegalArgumentException
IllegalArgumentException
- if the given string is malformed@Deprecated public static String getTaskAttemptIDsPattern(String jtIdentifier, Integer jobId, Boolean isMap, Integer taskId, Integer attemptId)
TaskAttemptID.getTaskAttemptIDsPattern(null, null, true, 1, null);which will return :
"attempt_[^_]*_[0-9]*_m_000001_[0-9]*"
jtIdentifier
- jobTracker identifier, or nulljobId
- job number, or nullisMap
- whether the tip is a map, or nulltaskId
- taskId number, or nullattemptId
- the task attempt number, or null@Deprecated public static String getTaskAttemptIDsPattern(String jtIdentifier, Integer jobId, TaskType type, Integer taskId, Integer attemptId)
TaskAttemptID.getTaskAttemptIDsPattern(null, null, TaskType.MAP, 1, null);which will return :
"attempt_[^_]*_[0-9]*_m_000001_[0-9]*"
jtIdentifier
- jobTracker identifier, or nulljobId
- job number, or nulltype
- the TaskType
taskId
- taskId number, or nullattemptId
- the task attempt number, or nullCopyright © 2016 Apache Software Foundation. All rights reserved.