Package | Description |
---|---|
org.apache.hadoop.mapred | |
org.apache.hadoop.mapreduce.task | |
org.apache.hadoop.mapreduce.task.reduce |
Modifier and Type | Class and Description |
---|---|
protected class |
MapTask.MapOutputBuffer.MRResultIterator |
Modifier and Type | Method and Description |
---|---|
static <K,V> RawKeyValueIterator |
Merger.merge(Configuration conf,
FileSystem fs,
Class<K> keyClass,
Class<V> valueClass,
CompressionCodec codec,
List<Merger.Segment<K,V>> segments,
int mergeFactor,
int inMemSegments,
Path tmpDir,
RawComparator<K> comparator,
Progressable reporter,
boolean sortSegments,
Counters.Counter readsCounter,
Counters.Counter writesCounter,
Progress mergePhase) |
static <K,V> RawKeyValueIterator |
Merger.merge(Configuration conf,
FileSystem fs,
Class<K> keyClass,
Class<V> valueClass,
CompressionCodec codec,
List<Merger.Segment<K,V>> segments,
int mergeFactor,
Path tmpDir,
RawComparator<K> comparator,
Progressable reporter,
boolean sortSegments,
Counters.Counter readsCounter,
Counters.Counter writesCounter,
Progress mergePhase) |
static <K,V> RawKeyValueIterator |
Merger.merge(Configuration conf,
FileSystem fs,
Class<K> keyClass,
Class<V> valueClass,
CompressionCodec codec,
Path[] inputs,
boolean deleteInputs,
int mergeFactor,
Path tmpDir,
RawComparator<K> comparator,
Progressable reporter,
Counters.Counter readsCounter,
Counters.Counter writesCounter,
Counters.Counter mergedMapOutputsCounter,
Progress mergePhase) |
static <K,V> RawKeyValueIterator |
Merger.merge(Configuration conf,
FileSystem fs,
Class<K> keyClass,
Class<V> valueClass,
CompressionCodec codec,
Path[] inputs,
boolean deleteInputs,
int mergeFactor,
Path tmpDir,
RawComparator<K> comparator,
Progressable reporter,
Counters.Counter readsCounter,
Counters.Counter writesCounter,
Progress mergePhase) |
static <K,V> RawKeyValueIterator |
Merger.merge(Configuration conf,
FileSystem fs,
Class<K> keyClass,
Class<V> valueClass,
List<Merger.Segment<K,V>> segments,
int mergeFactor,
int inMemSegments,
Path tmpDir,
RawComparator<K> comparator,
Progressable reporter,
boolean sortSegments,
Counters.Counter readsCounter,
Counters.Counter writesCounter,
Progress mergePhase) |
static <K,V> RawKeyValueIterator |
Merger.merge(Configuration conf,
FileSystem fs,
Class<K> keyClass,
Class<V> valueClass,
List<Merger.Segment<K,V>> segments,
int mergeFactor,
Path tmpDir,
RawComparator<K> comparator,
Progressable reporter,
boolean sortSegments,
Counters.Counter readsCounter,
Counters.Counter writesCounter,
Progress mergePhase) |
static <K,V> RawKeyValueIterator |
Merger.merge(Configuration conf,
FileSystem fs,
Class<K> keyClass,
Class<V> valueClass,
List<Merger.Segment<K,V>> segments,
int mergeFactor,
Path tmpDir,
RawComparator<K> comparator,
Progressable reporter,
Counters.Counter readsCounter,
Counters.Counter writesCounter,
Progress mergePhase) |
RawKeyValueIterator |
ShuffleConsumerPlugin.run() |
Modifier and Type | Method and Description |
---|---|
abstract void |
Task.CombinerRunner.combine(RawKeyValueIterator iterator,
OutputCollector<K,V> collector)
Run the combiner over a set of inputs.
|
void |
Task.OldCombinerRunner.combine(RawKeyValueIterator kvIter,
OutputCollector<K,V> combineCollector) |
void |
Task.NewCombinerRunner.combine(RawKeyValueIterator iterator,
OutputCollector<K,V> collector) |
protected static <INKEY,INVALUE,OUTKEY,OUTVALUE> |
Task.createReduceContext(Reducer<INKEY,INVALUE,OUTKEY,OUTVALUE> reducer,
Configuration job,
TaskAttemptID taskId,
RawKeyValueIterator rIter,
Counter inputKeyCounter,
Counter inputValueCounter,
RecordWriter<OUTKEY,OUTVALUE> output,
OutputCommitter committer,
StatusReporter reporter,
RawComparator<INKEY> comparator,
Class<INKEY> keyClass,
Class<INVALUE> valueClass) |
static <K,V> void |
Merger.writeFile(RawKeyValueIterator records,
IFile.Writer<K,V> writer,
Progressable progressable,
Configuration conf) |
Constructor and Description |
---|
Task.CombineValuesIterator(RawKeyValueIterator in,
RawComparator<KEY> comparator,
Class<KEY> keyClass,
Class<VALUE> valClass,
Configuration conf,
Reporter reporter,
Counters.Counter combineInputCounter) |
Constructor and Description |
---|
ReduceContextImpl(Configuration conf,
TaskAttemptID taskid,
RawKeyValueIterator input,
Counter inputKeyCounter,
Counter inputValueCounter,
RecordWriter<KEYOUT,VALUEOUT> output,
OutputCommitter committer,
StatusReporter reporter,
RawComparator<KEYIN> comparator,
Class<KEYIN> keyClass,
Class<VALUEIN> valueClass) |
Modifier and Type | Method and Description |
---|---|
RawKeyValueIterator |
MergeManagerImpl.close() |
RawKeyValueIterator |
MergeManager.close()
Called at the end of shuffle.
|
RawKeyValueIterator |
Shuffle.run() |
Copyright © 2013 Apache Software Foundation. All rights reserved.