public class NullTaskRuntimesEngine extends Object implements TaskRuntimeEstimator
| Constructor and Description |
|---|
NullTaskRuntimesEngine() |
| Modifier and Type | Method and Description |
|---|---|
long |
attemptEnrolledTime(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId attemptID) |
void |
contextualize(org.apache.hadoop.conf.Configuration conf,
AppContext context) |
void |
enrollAttempt(TaskAttemptStatusUpdateEvent.TaskAttemptStatus status,
long timestamp) |
long |
estimatedNewAttemptRuntime(org.apache.hadoop.mapreduce.v2.api.records.TaskId id)
Estimates how long a new attempt on this task will take if we start
one now
|
long |
estimatedRuntime(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId id)
Estimate a task attempt's total runtime.
|
long |
runtimeEstimateVariance(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId id)
Computes the width of the error band of our estimate of the task
runtime as returned by
TaskRuntimeEstimator.estimatedRuntime(TaskAttemptId) |
long |
thresholdRuntime(org.apache.hadoop.mapreduce.v2.api.records.TaskId id)
Find a maximum reasonable execution wallclock time.
|
void |
updateAttempt(TaskAttemptStatusUpdateEvent.TaskAttemptStatus status,
long timestamp) |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waithasStagnatedProgresspublic void enrollAttempt(TaskAttemptStatusUpdateEvent.TaskAttemptStatus status, long timestamp)
enrollAttempt in interface TaskRuntimeEstimatorpublic long attemptEnrolledTime(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId attemptID)
attemptEnrolledTime in interface TaskRuntimeEstimatorpublic void updateAttempt(TaskAttemptStatusUpdateEvent.TaskAttemptStatus status, long timestamp)
updateAttempt in interface TaskRuntimeEstimatorpublic void contextualize(org.apache.hadoop.conf.Configuration conf,
AppContext context)
contextualize in interface TaskRuntimeEstimatorpublic long thresholdRuntime(org.apache.hadoop.mapreduce.v2.api.records.TaskId id)
TaskRuntimeEstimatorthresholdRuntime in interface TaskRuntimeEstimatorid - the TaskId of the task we are asking aboutpublic long estimatedRuntime(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId id)
TaskRuntimeEstimatorestimatedRuntime in interface TaskRuntimeEstimatorid - the TaskAttemptId of the attempt we are asking about-1 if
we don't have enough information yet to produce an estimate.public long estimatedNewAttemptRuntime(org.apache.hadoop.mapreduce.v2.api.records.TaskId id)
TaskRuntimeEstimatorestimatedNewAttemptRuntime in interface TaskRuntimeEstimatorid - the TaskId of the task we are asking about-1 if
we don't have enough information yet to produce an estimate.public long runtimeEstimateVariance(org.apache.hadoop.mapreduce.v2.api.records.TaskAttemptId id)
TaskRuntimeEstimatorTaskRuntimeEstimator.estimatedRuntime(TaskAttemptId)runtimeEstimateVariance in interface TaskRuntimeEstimatorid - the TaskAttemptId of the attempt we are asking about-1 if
we don't have enough information yet to produce an estimate.Copyright © 2008–2024 Apache Software Foundation. All rights reserved.