|
||||||||||
PREV NEXT | FRAMES NO FRAMES |
Packages that use Reducer | |
---|---|
org.apache.hadoop.mapred | |
org.apache.hadoop.mapred.lib | |
org.apache.hadoop.mapred.lib.aggregate |
Uses of Reducer in org.apache.hadoop.mapred |
---|
Methods in org.apache.hadoop.mapred that return types with arguments of type Reducer | |
---|---|
Class<? extends Reducer> |
JobConf.getCombinerClass()
Deprecated. Get the user-defined combiner class used to combine map-outputs before being sent to the reducers. |
Class<? extends Reducer> |
JobConf.getReducerClass()
Deprecated. Get the Reducer class for the job. |
Method parameters in org.apache.hadoop.mapred with type arguments of type Reducer | |
---|---|
void |
JobConf.setCombinerClass(Class<? extends Reducer> theClass)
Deprecated. Set the user-defined combiner class used to combine map-outputs before being sent to the reducers. |
void |
JobConf.setReducerClass(Class<? extends Reducer> theClass)
Deprecated. Set the Reducer class for the job. |
Uses of Reducer in org.apache.hadoop.mapred.lib |
---|
Classes in org.apache.hadoop.mapred.lib that implement Reducer | |
---|---|
class |
ChainReducer
Deprecated. Use ChainReducer instead |
class |
FieldSelectionMapReduce<K,V>
Deprecated. Use FieldSelectionMapper and
FieldSelectionReducer instead |
class |
IdentityReducer<K,V>
Deprecated. Use Reducer instead. |
class |
LongSumReducer<K>
Deprecated. Use LongSumReducer
instead. |
Method parameters in org.apache.hadoop.mapred.lib with type arguments of type Reducer | ||
---|---|---|
static
|
ChainReducer.setReducer(JobConf job,
Class<? extends Reducer<K1,V1,K2,V2>> klass,
Class<? extends K1> inputKeyClass,
Class<? extends V1> inputValueClass,
Class<? extends K2> outputKeyClass,
Class<? extends V2> outputValueClass,
boolean byValue,
JobConf reducerConf)
Deprecated. Sets the Reducer class to the chain job's JobConf. |
Uses of Reducer in org.apache.hadoop.mapred.lib.aggregate |
---|
Classes in org.apache.hadoop.mapred.lib.aggregate that implement Reducer | |
---|---|
class |
ValueAggregatorCombiner<K1 extends WritableComparable,V1 extends Writable>
Deprecated. Use ValueAggregatorCombiner
instead |
class |
ValueAggregatorJobBase<K1 extends WritableComparable,V1 extends Writable>
Deprecated. Use ValueAggregatorJobBase
instead |
class |
ValueAggregatorMapper<K1 extends WritableComparable,V1 extends Writable>
Deprecated. Use ValueAggregatorMapper
instead |
class |
ValueAggregatorReducer<K1 extends WritableComparable,V1 extends Writable>
Deprecated. Use ValueAggregatorReducer
instead |
|
||||||||||
PREV NEXT | FRAMES NO FRAMES |