org.apache.hadoop.hbase

Class PerformanceEvaluation.EvaluationMapTask

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.LongWritable>

org.apache.hadoop.hbase.PerformanceEvaluation.EvaluationMapTask

Enclosing class:

PerformanceEvaluation

public static class PerformanceEvaluation.EvaluationMapTask
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.LongWritable>

MapReduce job that runs a performance evaluation client in each map task.

Nested Class Summary

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

org.apache.hadoop.mapreduce.Mapper.Context

Field Summary

Fields

Modifier and Type	Field and Description
private Class<? extends PerformanceEvaluation.Test>	cmd
static String	CMD_KEY configuration parameter name that contains the command
static String	PE_KEY configuration parameter name that contains the PE impl

Constructor Summary

Constructors

Constructor and Description
EvaluationMapTask()

Method Summary

Modifier and Type	Method and Description
private <Type> Class<? extends Type>	forName(String className, Class<Type> type)
protected void	map(org.apache.hadoop.io.LongWritable key, org.apache.hadoop.io.Text value, org.apache.hadoop.mapreduce.Mapper.Context context)
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context)

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

cleanup, run

Methods inherited from class java.lang.Object

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

Field Detail

CMD_KEY

public static final String CMD_KEY

configuration parameter name that contains the command

See Also:

Constant Field Values

PE_KEY

public static final String PE_KEY

configuration parameter name that contains the PE impl

See Also:

Constant Field Values

cmd

private Class<? extends PerformanceEvaluation.Test> cmd

Constructor Detail

EvaluationMapTask

public EvaluationMapTask()

Method Detail

setup

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

Overrides:

setup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.LongWritable>

Throws:

IOException

InterruptedException

forName

private <Type> Class<? extends Type> forName(String className,
                                             Class<Type> type)

map

protected void map(org.apache.hadoop.io.LongWritable key,
                   org.apache.hadoop.io.Text value,
                   org.apache.hadoop.mapreduce.Mapper.Context context)
            throws IOException,
                   InterruptedException

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.LongWritable>

Throws:

IOException

InterruptedException