| Package | Description | 
|---|---|
| org.apache.hadoop.mapreduce.v2.app.speculate | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | ExponentiallySmoothedTaskRuntimeEstimatorThis estimator exponentially smooths the rate of progress versus wallclock
 time. | 
| class  | LegacyTaskRuntimeEstimator | 
| class  | NullTaskRuntimesEngine | 
| class  | SimpleExponentialTaskRuntimeEstimatorA task Runtime Estimator based on exponential smoothing. | 
| Constructor and Description | 
|---|
| DefaultSpeculator(org.apache.hadoop.conf.Configuration conf,
                 AppContext context,
                 TaskRuntimeEstimator estimator,
                 org.apache.hadoop.yarn.util.Clock clock) | 
Copyright © 2008–2023 Apache Software Foundation. All rights reserved.