org.apache.hadoop.mapreduce.v2.app.job
Interface TaskAttempt

All Known Implementing Classes:

MapTaskAttemptImpl, ReduceTaskAttemptImpl, TaskAttemptImpl

public interface TaskAttempt

Read only view of TaskAttempt.

Method Summary

org.apache.hadoop.yarn.api.records.ContainerId	getAssignedContainerID()
String	getAssignedContainerMgrAddress()
org.apache.hadoop.mapreduce.Counters	getCounters()
List<String>	getDiagnostics()
long	getFinishTime()
org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId	getID()
long	getLaunchTime()
String	getNodeHttpAddress()
String	getNodeRackName()
float	getProgress()
org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptReport	getReport()
long	getShuffleFinishTime()
int	getShufflePort()
long	getSortFinishTime()
org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptState	getState()
boolean	isFinished() Has attempt reached the final state or not.

Method Detail

getID

org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId getID()

getReport

org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptReport getReport()

getDiagnostics

List<String> getDiagnostics()

getCounters

org.apache.hadoop.mapreduce.Counters getCounters()

getProgress

float getProgress()

getState

org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptState getState()

isFinished

boolean isFinished()

Has attempt reached the final state or not.

Returns:

true if it has finished, else false

getAssignedContainerID

org.apache.hadoop.yarn.api.records.ContainerId getAssignedContainerID()

Returns:

the container ID if a container is assigned, otherwise null.

getAssignedContainerMgrAddress

String getAssignedContainerMgrAddress()

Returns:

container mgr address if a container is assigned, otherwise null.

getNodeHttpAddress

String getNodeHttpAddress()

Returns:

node's http address if a container is assigned, otherwise null.

getNodeRackName

String getNodeRackName()

Returns:

node's rack name if a container is assigned, otherwise null.

getLaunchTime

long getLaunchTime()

Returns:

time at which container is launched. If container is not launched yet, returns 0.

getFinishTime

long getFinishTime()

Returns:

attempt's finish time. If attempt is not finished yet, returns 0.

getShuffleFinishTime

long getShuffleFinishTime()

Returns:

The attempt's shuffle finish time if the attempt is a reduce. If attempt is not finished yet, returns 0.

getSortFinishTime

long getSortFinishTime()

Returns:

The attempt's sort or merge finish time if the attempt is a reduce. If attempt is not finished yet, returns 0.

getShufflePort

int getShufflePort()

Returns:

the port shuffle is on.