io.druid.indexer

Class DetermineHashedPartitionsJob.DetermineCardinalityMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<Object,Object,KEYOUT,VALUEOUT>

io.druid.indexer.HadoopDruidIndexerMapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.BytesWritable>

io.druid.indexer.DetermineHashedPartitionsJob.DetermineCardinalityMapper

Enclosing class:

DetermineHashedPartitionsJob

public static class DetermineHashedPartitionsJob.DetermineCardinalityMapper
extends HadoopDruidIndexerMapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.BytesWritable>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper

org.apache.hadoop.mapreduce.Mapper.Context

Field Summary

Fields inherited from class io.druid.indexer.HadoopDruidIndexerMapper

granularitySpec

Constructor Summary

Constructors

Constructor and Description
DetermineHashedPartitionsJob.DetermineCardinalityMapper()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	innerMap(io.druid.data.input.InputRow inputRow, Object value, org.apache.hadoop.mapreduce.Mapper.Context context)
void	run(org.apache.hadoop.mapreduce.Mapper.Context context)
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context)

Methods inherited from class io.druid.indexer.HadoopDruidIndexerMapper

getConfig, getParser, map, parseInputRow

Methods inherited from class org.apache.hadoop.mapreduce.Mapper

cleanup

Methods inherited from class java.lang.Object

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

Constructor Detail

DetermineHashedPartitionsJob.DetermineCardinalityMapper

public DetermineHashedPartitionsJob.DetermineCardinalityMapper()

Method Detail

setup

protected void setup(org.apache.hadoop.mapreduce.Mapper.Context context)
              throws IOException,
                     InterruptedException

Overrides:

setup in class HadoopDruidIndexerMapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.BytesWritable>

Throws:

IOException

InterruptedException

innerMap

protected void innerMap(io.druid.data.input.InputRow inputRow,
            Object value,
            org.apache.hadoop.mapreduce.Mapper.Context context)
                 throws IOException,
                        InterruptedException

Specified by:

innerMap in class HadoopDruidIndexerMapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.BytesWritable>

Throws:

IOException

InterruptedException

run

public void run(org.apache.hadoop.mapreduce.Mapper.Context context)
         throws IOException,
                InterruptedException

Overrides:

run in class org.apache.hadoop.mapreduce.Mapper<Object,Object,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.BytesWritable>

Throws:

IOException

InterruptedException