org.apache.hadoop.mapred
Class TaskReport

java.lang.Object
  org.apache.hadoop.mapred.TaskReport

All Implemented Interfaces:

Writable

public class TaskReport
extends java.lang.Object
implements Writable

A report on the state of a task.

Constructor Summary

TaskReport()

Method Summary

boolean	equals(java.lang.Object o)
Counters	getCounters() A table of counters.
TIPStatus	getCurrentStatus() The current status
java.lang.String[]	getDiagnostics() A list of error messages.
long	getFinishTime() Get finish time of task.
float	getProgress() The amount completed, between zero and one.
java.util.Collection<TaskAttemptID>	getRunningTaskAttempts() Get the running task attempt IDs for this task
long	getStartTime() Get start time of task.
java.lang.String	getState() The most recent state, reported by a Reporter.
TaskAttemptID	getSuccessfulTaskAttempt() Get the attempt ID that took this task to completion
java.lang.String	getTaskId() Deprecated. use getTaskID() instead
TaskID	getTaskID() The id of the task.
int	hashCode()
void	readFields(java.io.DataInput in) Deserialize the fields of this object from in.
void	setRunningTaskAttempts(java.util.Collection<TaskAttemptID> runningAttempts) set running attempt(s) of the task.
void	setSuccessfulAttempt(TaskAttemptID t) set successful attempt ID of the task.
void	write(java.io.DataOutput out) Serialize the fields of this object to out.

Methods inherited from class java.lang.Object

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

Constructor Detail

TaskReport

public TaskReport()

Method Detail

getTaskId

@Deprecated
public java.lang.String getTaskId()

Deprecated. use getTaskID() instead

getTaskID

public TaskID getTaskID()

The id of the task.

getProgress

public float getProgress()

The amount completed, between zero and one.

getState

public java.lang.String getState()

The most recent state, reported by a Reporter.

getDiagnostics

public java.lang.String[] getDiagnostics()

A list of error messages.

getCounters

public Counters getCounters()

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.

getStartTime

public long getStartTime()

Get start time of task.

Returns:

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

setSuccessfulAttempt

public void setSuccessfulAttempt(TaskAttemptID t)

set successful attempt ID of the task.

getSuccessfulTaskAttempt

public TaskAttemptID getSuccessfulTaskAttempt()

Get the attempt ID that took this task to completion

setRunningTaskAttempts

public void setRunningTaskAttempts(java.util.Collection<TaskAttemptID> runningAttempts)

set running attempt(s) of the task.

getRunningTaskAttempts

public java.util.Collection<TaskAttemptID> getRunningTaskAttempts()

Get the running task attempt IDs for this task

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

write

public void write(java.io.DataOutput out)
           throws java.io.IOException

Description copied from interface: Writable

Serialize the fields of this object to out.

Specified by:

write in interface Writable

Parameters:

out - DataOuput to serialize this object into.

Throws:

java.io.IOException

readFields

public void readFields(java.io.DataInput in)
                throws java.io.IOException

Description copied from interface: Writable

Deserialize the fields of this object from in.

For efficiency, implementations should attempt to re-use storage in the existing object where possible.

Specified by:

readFields in interface Writable

Parameters:

in - DataInput to deseriablize this object from.

Throws:

java.io.IOException