[[PageOutline]]

= 實作二： HDFS 指令操作練習  =

 == 前言 ==

 * 此部份接續實做一
    
 == Content 1. 基本操作 ==
 === 1.1 瀏覽你HDFS目錄  === 

 === 1.2 上傳資料到HDFS目錄 === 
 
 === 1.3 下載HDFS的資料到本地目錄 === 
  
 === 1.4 更多指令操作 ===
  
 == Content 2. Hadoop 運算命令 == 
  
 === 2.1 Hadoop運算命令 grep ===  
 
 === 2.2 Hadoop運算命令 WordCount ===
 
 === 2.3 更多運算命令 ===
 
 可執行的指令一覽表：

 || aggregatewordcount ||  An Aggregate based map/reduce program that counts the words in the input files. || 
 || aggregatewordhist || An Aggregate based map/reduce program that computes the histogram of the words in the input files. || 
 || grep ||  A map/reduce program that counts the matches of a regex in the input. || 
 || join || A job that effects a join over sorted, equally partitioned datasets || 
 || multifilewc ||  A job that counts words from several files. || 
 || pentomino  || A map/reduce tile laying program to find solutions to pentomino problems. || 
 || pi ||  A map/reduce program that estimates Pi using monte-carlo method. || 
 || randomtextwriter ||  A map/reduce program that writes 10GB of random textual data per node. || 
 || randomwriter || A map/reduce program that writes 10GB of random data per node. || 
 || sleep ||  A job that sleeps at each map and reduce task. || 
 || sort || A map/reduce program that sorts the data written by the random writer. || 
 || sudoku ||  A sudoku solver. || 
 || wordcount || A map/reduce program that counts the words in the input files. || 

 
 請參考 [http://hadoop.apache.org/core/docs/current/api/org/apache/hadoop/examples/package-summary.html org.apache.hadoop.examples]
 

 
 == Content 3. 使用網頁Gui瀏覽訊息 ==
 
 
 == 練習 ==