Package | Description |
---|---|
org.apache.hadoop.mapred.lib | |
org.apache.hadoop.mapreduce.lib.partition |
Class and Description |
---|
BinaryPartitioner
Partition
BinaryComparable keys using a configurable part of
the bytes array returned by BinaryComparable.getBytes() . |
InputSampler
Utility for collecting samples and writing a partition file for
TotalOrderPartitioner . |
InputSampler.IntervalSampler
Sample from s splits at regular intervals.
|
InputSampler.RandomSampler
Sample from random points in the input.
|
InputSampler.Sampler
Interface to sample using an
InputFormat . |
InputSampler.SplitSampler
Samples the first n records from s splits.
|
KeyFieldBasedComparator
This comparator implementation provides a subset of the features provided
by the Unix/GNU Sort.
|
KeyFieldBasedPartitioner
Defines a way to partition keys based on certain key fields (also see
KeyFieldBasedComparator . |
TotalOrderPartitioner
Partitioner effecting a total order by reading split points from
an externally generated source.
|
Class and Description |
---|
InputSampler.Sampler
Interface to sample using an
InputFormat . |
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