mahout kmeans 例子

一、mahout 简单例子测试

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mahout 安装配置可以参考：mahout安装配置

1、kmeans 聚类算法测试数据来源：

    地址：http://archive.ics.uci.edu/ml/databases/synthetic_control/synthetic_control.data

2、下载数据，把数据存放到hdfs上（hadoop2.6.1 已经启动）

       创建测试目录testdata，并把数据导入到这个tastdata目录中(这里的目录的名字只能是testdata)

  
$ hdfs dfs -mkdir testdata
$ hdfs dfs -put /home/lin/hadoop/mahout-distribution-0.10.0/test.data  testdata

3、执行kmeans算法，等待运行结果

  
$ hadoop jar /home/lin/hadoop/mahout-distribution-0.10.0/mahout-examples-0.10.0-job.jar org.apache.mahout.clustering.syntheticcontrol.kmeans.Job 

4、运行成功查看运行结果

  
hdfs dfs -ls output

显示如下结果证明运行成功：

  
lin@lin162:~/hadoop/hadoop-2.6.1/etc/hadoop$ hdfs dfs -ls output         
Found 15 items
-rw-r--r--   2 lin supergroup        194 2015-12-01 12:27 output/_policy
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:27 output/clusteredPoints
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:22 output/clusters-0
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:23 output/clusters-1
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:27 output/clusters-10-final
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:23 output/clusters-2
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:24 output/clusters-3
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:24 output/clusters-4
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:25 output/clusters-5
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:25 output/clusters-6
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:25 output/clusters-7
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:26 output/clusters-8
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:26 output/clusters-9
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:22 output/data
drwxr-xr-x   - lin supergroup          0 2015-12-01 12:22 output/random-seeds

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