org.apache.hadoop.mapreduce

Class TaskReport

java.lang.Object

org.apache.hadoop.mapreduce.TaskReport

All Implemented Interfaces:

org.apache.hadoop.io.Writable

Direct Known Subclasses:

TaskReport

@InterfaceAudience.Private
@InterfaceStability.Evolving
public class TaskReport
extends Object
implements org.apache.hadoop.io.Writable

A report on the state of a task.

Constructor Summary

Constructors

Constructor and Description
TaskReport()
TaskReport(TaskID taskid, float progress, String state, String[] diagnostics, TIPStatus currentStatus, long startTime, long finishTime, Counters counters) Creates a new TaskReport object

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object o)
TIPStatus	getCurrentStatus() The current status
String[]	getDiagnostics() A list of error messages.
long	getFinishTime() Get finish time of task.
float	getProgress() The amount completed, between zero and one.
Collection<TaskAttemptID>	getRunningTaskAttemptIds() Get the running task attempt IDs for this task
long	getStartTime() Get start time of task.
String	getState() The most recent state, reported by the Reporter.
TaskAttemptID	getSuccessfulTaskAttemptId() Get the attempt ID that took this task to completion
Counters	getTaskCounters() A table of counters.
TaskID	getTaskId() The id of the task.
int	hashCode()
void	readFields(DataInput in)
protected void	setFinishTime(long finishTime) set finish time of task.
protected void	setRunningTaskAttemptIds(Collection<TaskAttemptID> runningAttempts) set running attempt(s) of the task.
protected void	setStartTime(long startTime) set start time of the task.
protected void	setSuccessfulAttemptId(TaskAttemptID t) set successful attempt ID of the task.
void	write(DataOutput out)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TaskReport

public TaskReport()

TaskReport

public TaskReport(TaskID taskid,
          float progress,
          String state,
          String[] diagnostics,
          TIPStatus currentStatus,
          long startTime,
          long finishTime,
          Counters counters)

Creates a new TaskReport object

Parameters:

taskid -

progress -

state -

diagnostics -

currentStatus -

startTime -

finishTime -

counters -

Method Detail

getTaskId

public TaskID getTaskId()

The id of the task.

getProgress

public float getProgress()

The amount completed, between zero and one.

getState

public String getState()

The most recent state, reported by the Reporter.

getDiagnostics

public String[] getDiagnostics()

A list of error messages.

getTaskCounters

public Counters getTaskCounters()

A table of counters.

getCurrentStatus

public TIPStatus getCurrentStatus()

The current status

getFinishTime

public long getFinishTime()

Get finish time of task.

Returns:

0, if finish time was not set else returns finish time.

setFinishTime

protected void setFinishTime(long finishTime)

set finish time of task.

Parameters:

finishTime - finish time of task.

getStartTime

public long getStartTime()

Get start time of task.

Returns:

0 if start time was not set, else start time.

setStartTime

protected void setStartTime(long startTime)

set start time of the task.

setSuccessfulAttemptId

protected void setSuccessfulAttemptId(TaskAttemptID t)

set successful attempt ID of the task.

getSuccessfulTaskAttemptId

public TaskAttemptID getSuccessfulTaskAttemptId()

Get the attempt ID that took this task to completion

setRunningTaskAttemptIds

protected void setRunningTaskAttemptIds(Collection<TaskAttemptID> runningAttempts)

set running attempt(s) of the task.

getRunningTaskAttemptIds

public Collection<TaskAttemptID> getRunningTaskAttemptIds()

Get the running task attempt IDs for this task

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

write

public void write(DataOutput out)
           throws IOException

Specified by:

write in interface org.apache.hadoop.io.Writable

Throws:

IOException

readFields

public void readFields(DataInput in)
                throws IOException

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Throws:

IOException