alluxio.checker

Class MapReduceIntegrationChecker.CheckerMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<java.lang.Object,java.lang.Object,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>

alluxio.checker.MapReduceIntegrationChecker.CheckerMapper

Enclosing class:

MapReduceIntegrationChecker

protected static class MapReduceIntegrationChecker.CheckerMapper
extends org.apache.hadoop.mapreduce.Mapper<java.lang.Object,java.lang.Object,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>

In each mapper node, we will check whether this node can recognize Alluxio classes and filesystem.

Nested Class Summary

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

org.apache.hadoop.mapreduce.Mapper.Context

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CheckerMapper()

Method Summary

Modifier and Type	Method and Description
protected void	map(java.lang.Object ignoredKey, java.lang.Object ignoredValue, org.apache.hadoop.mapreduce.Mapper.Context context) Records the Status and IP address of each mapper task node.

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

cleanup, run, setup

Methods inherited from class java.lang.Object

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

Constructor Detail

CheckerMapper

protected CheckerMapper()

Method Detail

map

protected void map(java.lang.Object ignoredKey,
                   java.lang.Object ignoredValue,
                   org.apache.hadoop.mapreduce.Mapper.Context context)
            throws java.io.IOException,
                   java.lang.InterruptedException

Records the Status and IP address of each mapper task node.

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<java.lang.Object,java.lang.Object,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>

Throws:

java.io.IOException

java.lang.InterruptedException