org.apache.avro.mapreduce

Class CombineAvroKeyValueFileInputFormat<K,V>

java.lang.Object

org.apache.hadoop.mapreduce.InputFormat<K,V>

org.apache.hadoop.mapreduce.lib.input.FileInputFormat<K,V>

org.apache.hadoop.mapreduce.lib.input.CombineFileInputFormat<AvroKey<K>,AvroValue<V>>

org.apache.avro.mapreduce.CombineAvroKeyValueFileInputFormat<K,V>

Type Parameters:

K - The type of the Avro key to read.

V - The type of the Avro value to read.

public class CombineAvroKeyValueFileInputFormat<K,V>
extends org.apache.hadoop.mapreduce.lib.input.CombineFileInputFormat<AvroKey<K>,AvroValue<V>>

A combine avro keyvalue file input format that can combine small avro files into mappers.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.lib.input.FileInputFormat

org.apache.hadoop.mapreduce.lib.input.FileInputFormat.Counter

Field Summary

Fields inherited from class org.apache.hadoop.mapreduce.lib.input.CombineFileInputFormat

SPLIT_MINSIZE_PERNODE, SPLIT_MINSIZE_PERRACK

Fields inherited from class org.apache.hadoop.mapreduce.lib.input.FileInputFormat

DEFAULT_LIST_STATUS_NUM_THREADS, INPUT_DIR, INPUT_DIR_NONRECURSIVE_IGNORE_SUBDIRS, INPUT_DIR_RECURSIVE, LIST_STATUS_NUM_THREADS, NUM_INPUT_FILES, PATHFILTER_CLASS, SPLIT_MAXSIZE, SPLIT_MINSIZE

Constructor Summary

Constructors

Constructor and Description
CombineAvroKeyValueFileInputFormat()

Method Summary

Modifier and Type	Method and Description
org.apache.hadoop.mapreduce.RecordReader<AvroKey<K>,AvroValue<V>>	createRecordReader(org.apache.hadoop.mapreduce.InputSplit inputSplit, org.apache.hadoop.mapreduce.TaskAttemptContext taskAttemptContext)

Methods inherited from class org.apache.hadoop.mapreduce.lib.input.CombineFileInputFormat

createPool, createPool, getFileBlockLocations, getSplits, isSplitable, setMaxSplitSize, setMinSplitSizeNode, setMinSplitSizeRack

Methods inherited from class org.apache.hadoop.mapreduce.lib.input.FileInputFormat

addInputPath, addInputPathRecursively, addInputPaths, computeSplitSize, getBlockIndex, getFormatMinSplitSize, getInputDirRecursive, getInputPathFilter, getInputPaths, getMaxSplitSize, getMinSplitSize, listStatus, makeSplit, makeSplit, setInputDirRecursive, setInputPathFilter, setInputPaths, setInputPaths, setMaxInputSplitSize, setMinInputSplitSize

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CombineAvroKeyValueFileInputFormat

public CombineAvroKeyValueFileInputFormat()

Method Detail

createRecordReader

public org.apache.hadoop.mapreduce.RecordReader<AvroKey<K>,AvroValue<V>> createRecordReader(org.apache.hadoop.mapreduce.InputSplit inputSplit,
                                                                                            org.apache.hadoop.mapreduce.TaskAttemptContext taskAttemptContext)
                                                                                     throws IOException

Specified by:

createRecordReader in class org.apache.hadoop.mapreduce.lib.input.CombineFileInputFormat<AvroKey<K>,AvroValue<V>>

Throws:

IOException