|
||||||||||
PREV NEXT | FRAMES NO FRAMES |
Packages that use Reducer | |
---|---|
org.apache.hadoop.examples | Hadoop example code. |
org.apache.hadoop.mapred.lib | Library of generally useful mappers, reducers, and partitioners. |
org.apache.hadoop.util | Common utilities. |
Uses of Reducer in org.apache.hadoop.examples |
---|
Classes in org.apache.hadoop.examples that implement Reducer | |
---|---|
class |
NNBench
This program uses map/reduce to run a distributed job where there is no interaction between the tasks. |
static class |
PiBenchmark.PiReducer
|
class |
RandomWriter
This program uses map/reduce to just run a distributed job where there is no interaction between the tasks and each task write a large unsorted random binary sequence file of BytesWritable. |
static class |
WordCount.Reduce
A reducer class that just emits the sum of the input values. |
Uses of Reducer in org.apache.hadoop.mapred.lib |
---|
Classes in org.apache.hadoop.mapred.lib that implement Reducer | |
---|---|
class |
IdentityReducer
Performs no reduction, writing all input values directly to the output. |
class |
LongSumReducer
A Reducer that sums long values. |
Uses of Reducer in org.apache.hadoop.util |
---|
Classes in org.apache.hadoop.util that implement Reducer | |
---|---|
static class |
CopyFiles.CopyFilesReducer
|
|
||||||||||
PREV NEXT | FRAMES NO FRAMES |