| Package | Description | 
|---|---|
| org.apache.hadoop.mapred | |
| org.apache.hadoop.mapreduce | |
| org.apache.hadoop.mapreduce.counters | 
 This package contains the implementations of different types of
 map-reduce counters. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
static class  | 
Counters.Group
Group of counters, comprising of counters from a particular
  counter Enum class. | 
| Modifier and Type | Method and Description | 
|---|---|
CounterGroupBase<Counters.Counter> | 
Counters.Group.getUnderlyingGroup()  | 
| Modifier and Type | Method and Description | 
|---|---|
void | 
Counters.Group.incrAllCounters(CounterGroupBase<Counters.Counter> rightGroup)  | 
| Modifier and Type | Interface and Description | 
|---|---|
interface  | 
CounterGroup
A group of  
Counters that logically belong together. | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
AbstractCounters<C extends Counter,G extends CounterGroupBase<C>>
An abstract class to provide common implementation for the Counters
 container in both mapred and mapreduce packages. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
void | 
CounterGroupBase.incrAllCounters(CounterGroupBase<T> rightGroup)
Increment all counters by a group of counters 
 | 
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