org.apache.tez.dag.app.dag

Interface Task

All Known Implementing Classes:

TaskImpl

public interface Task

Read only view of Task.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canCommit(org.apache.tez.dag.records.TezTaskAttemptID taskAttemptID) Can the output of the taskAttempt be committed.
TaskAttempt	getAttempt(org.apache.tez.dag.records.TezTaskAttemptID attemptID)
Map<org.apache.tez.dag.records.TezTaskAttemptID,TaskAttempt>	getAttempts()
org.apache.tez.common.counters.TezCounters	getCounters()
List<String>	getDiagnostics()
float	getProgress()
TaskReport	getReport()
TaskState	getState()
TaskAttempt	getSuccessfulAttempt()
List<org.apache.tez.runtime.api.impl.TezEvent>	getTaskAttemptTezEvents(org.apache.tez.dag.records.TezTaskAttemptID attemptID, int fromEventId, int maxEvents)
org.apache.tez.dag.records.TezTaskID	getTaskId()
Vertex	getVertex()
boolean	isFinished() Has Task reached the final state or not.
void	registerTezEvent(org.apache.tez.runtime.api.impl.TezEvent tezEvent)
TaskState	restoreFromEvent(HistoryEvent historyEvent)

Method Detail

getTaskId

org.apache.tez.dag.records.TezTaskID getTaskId()

getReport

TaskReport getReport()

getState

TaskState getState()

getCounters

org.apache.tez.common.counters.TezCounters getCounters()

getProgress

float getProgress()

getAttempts

Map<org.apache.tez.dag.records.TezTaskAttemptID,TaskAttempt> getAttempts()

getAttempt

TaskAttempt getAttempt(org.apache.tez.dag.records.TezTaskAttemptID attemptID)

getSuccessfulAttempt

TaskAttempt getSuccessfulAttempt()

isFinished

boolean isFinished()

Has Task reached the final state or not.

canCommit

boolean canCommit(org.apache.tez.dag.records.TezTaskAttemptID taskAttemptID)

Can the output of the taskAttempt be committed. Note that once the task gives a go for a commit, further canCommit requests from any other attempts should return false.

Parameters:

taskAttemptID -

Returns:

whether the attempt's output can be committed or not.

getVertex

Vertex getVertex()

getTaskAttemptTezEvents

List<org.apache.tez.runtime.api.impl.TezEvent> getTaskAttemptTezEvents(org.apache.tez.dag.records.TezTaskAttemptID attemptID,
                                                                     int fromEventId,
                                                                     int maxEvents)

getDiagnostics

List<String> getDiagnostics()

restoreFromEvent

TaskState restoreFromEvent(HistoryEvent historyEvent)

registerTezEvent

void registerTezEvent(org.apache.tez.runtime.api.impl.TezEvent tezEvent)