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  • 大小: 154KB
    文件類型: .zip
    金幣: 2
    下載: 0 次
    發布日期: 2021-05-21
  • 語言: 其他
  • 標簽: Hadoop??

資源簡介

完整的詞頻統計MapReduce版本。基于Hadoop2.2.0，包含一個十萬單詞左右的測試文件。請參照 http://blog.csdn.net/zythy/article/details/17888439 獲取詳細解說。

資源截圖

代碼片段和文件信息 

package?com.oserp.wordsfrequencies;

import?java.io.IOException;
import?org.apache.hadoop.io.LongWritable;
import?org.apache.hadoop.io.Text;?

public?class?WordsFrequenciesCombiner?extends?org.apache.hadoop.mapreduce.Reducer{

	@Override
	protected?void?reduce（Text?key?Iterable?values
			Context?context）
			throws?IOException?InterruptedException?{
		
		long?counts?=?0;
		
		for?（LongWritable?value?:?values）?{
			counts?+=?value.get（）;
		}
		
		context.write（key?new?LongWritable（counts））;		
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????3278??2014-01-05?11:02??WordsFrequencies\bin\com\oserp\wordsfrequencies\WordsFrequenciesRunner.class
?????文件????????2316??2014-01-05?09:48??WordsFrequencies\bin\com\oserp\wordsfrequencies\WordsFrequenciesReducer.class
?????文件????????2275??2014-01-05?10:40??WordsFrequencies\bin\com\oserp\wordsfrequencies\WordsFrequenciesMapper2.class
?????文件????????1066??2014-01-05?09:29??WordsFrequencies\bin\com\oserp\wordsfrequencies\WordsFrequenciesPartitioner.class
?????文件????????2358??2014-01-05?09:29??WordsFrequencies\bin\com\oserp\wordsfrequencies\WordsFrequenciesMapper.class
?????文件????????2319??2014-01-05?09:51??WordsFrequencies\bin\com\oserp\wordsfrequencies\WordsFrequenciesCombiner.class
?????文件????????2300??2014-01-05?10:48??WordsFrequencies\bin\com\oserp\wordsfrequencies\WordsFrequenciesReducer2.class
?????文件?????????663??2014-01-05?08:01??WordsFrequencies\src\com\oserp\wordsfrequencies\WordsFrequenciesMapper.java
?????文件?????????578??2014-01-05?09:48??WordsFrequencies\src\com\oserp\wordsfrequencies\WordsFrequenciesReducer.java
?????文件????????2845??2014-01-05?11:02??WordsFrequencies\src\com\oserp\wordsfrequencies\WordsFrequenciesRunner.java
?????文件?????????508??2014-01-04?14:03??WordsFrequencies\src\com\oserp\wordsfrequencies\WordsFrequenciesPartitioner.java
?????文件?????????557??2014-01-05?09:51??WordsFrequencies\src\com\oserp\wordsfrequencies\WordsFrequenciesCombiner.java
?????文件?????????488??2014-01-05?10:40??WordsFrequencies\src\com\oserp\wordsfrequencies\WordsFrequenciesMapper2.java
?????文件?????????573??2014-01-05?10:48??WordsFrequencies\src\com\oserp\wordsfrequencies\WordsFrequenciesReducer2.java
?????文件?????????427??2014-01-03?08:44??WordsFrequencies\.project
?????文件???????14523??2014-01-03?08:44??WordsFrequencies\.classpath
?????目錄???????????0??2014-01-05?09:30??WordsFrequencies\bin\com\oserp\wordsfrequencies\
?????目錄???????????0??2014-01-05?09:30??WordsFrequencies\src\com\oserp\wordsfrequencies\
?????目錄???????????0??2014-01-05?09:29??WordsFrequencies\bin\com\oserp\
?????目錄???????????0??2014-01-03?08:54??WordsFrequencies\src\com\oserp\
?????目錄???????????0??2014-01-05?09:29??WordsFrequencies\bin\com\
?????目錄???????????0??2014-01-03?08:54??WordsFrequencies\src\com\
?????目錄???????????0??2014-01-05?09:29??WordsFrequencies\bin\
?????目錄???????????0??2014-01-03?08:54??WordsFrequencies\src\
?????目錄???????????0??2014-01-03?08:44??WordsFrequencies\
?????文件??????430201??2014-01-03?23:09??10?Steps?To?Sales?Success.txt

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