org.apache.kylin.storage.hbase.steps

Class RangeKeyDistributionMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<KEYIN,VALUEIN,KEYOUT,VALUEOUT>

org.apache.kylin.engine.mr.KylinMapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable>

org.apache.kylin.storage.hbase.steps.RangeKeyDistributionMapper

public class RangeKeyDistributionMapper
extends KylinMapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable>

Author:

ysong1

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 org.apache.kylin.engine.mr.KylinMapper

mapCounter

Constructor Summary

Constructors

Constructor and Description
RangeKeyDistributionMapper()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	doCleanup(org.apache.hadoop.mapreduce.Mapper.Context context)
void	doMap(org.apache.hadoop.io.Text key, org.apache.hadoop.io.Text value, org.apache.hadoop.mapreduce.Mapper.Context context)
protected void	doSetup(org.apache.hadoop.mapreduce.Mapper.Context context)

Methods inherited from class org.apache.kylin.engine.mr.KylinMapper

bindCurrentConfiguration, cleanup, map, setup

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

run

Methods inherited from class java.lang.Object

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

Constructor Detail

RangeKeyDistributionMapper

public RangeKeyDistributionMapper()

Method Detail

doSetup

protected void doSetup(org.apache.hadoop.mapreduce.Mapper.Context context)
                throws IOException

Overrides:

doSetup in class KylinMapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable>

Throws:

IOException

doMap

public void doMap(org.apache.hadoop.io.Text key,
         org.apache.hadoop.io.Text value,
         org.apache.hadoop.mapreduce.Mapper.Context context)
           throws IOException,
                  InterruptedException

Overrides:

doMap in class KylinMapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable>

Throws:

IOException

InterruptedException

doCleanup

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

Overrides:

doCleanup in class KylinMapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable>

Throws:

IOException

InterruptedException