Package org.apache.nutch.crawl

Class DeduplicationJob.StatusUpdateReducer

java.lang.Object

org.apache.hadoop.mapreduce.Reducer<Text,CrawlDatum,Text,CrawlDatum>

org.apache.nutch.crawl.DeduplicationJob.StatusUpdateReducer

Enclosing class:

DeduplicationJob

public static class DeduplicationJob.StatusUpdateReducer
extends Reducer<Text,CrawlDatum,Text,CrawlDatum>

Combine multiple new entries for a url.

Nested Class Summary

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

Reducer.Context

Constructor Summary

Constructors

Constructor	Description
StatusUpdateReducer()

Method Summary

Modifier and Type	Method	Description
void	reduce(Text key, Iterable<CrawlDatum> values, Reducer<Text,CrawlDatum,Text,CrawlDatum>.Context context)
void	setup(Reducer<Text,CrawlDatum,Text,CrawlDatum>.Context context)

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

cleanup, run

Methods inherited from class java.lang.Object

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

Constructor Details

StatusUpdateReducer

public StatusUpdateReducer()

Method Details

setup

public void setup(Reducer<Text,CrawlDatum,Text,CrawlDatum>.Context context)

Overrides:

setup in class Reducer<Text,CrawlDatum,Text,CrawlDatum>

reduce

public void reduce(Text key,
 Iterable<CrawlDatum> values,
 Reducer<Text,CrawlDatum,Text,CrawlDatum>.Context context)
            throws IOException,
InterruptedException

Overrides:

reduce in class Reducer<Text,CrawlDatum,Text,CrawlDatum>

Throws:

IOException

InterruptedException