Changes between Version 38 and Version 39 of waue/2009/0617

Timestamp:

Apr 26, 2010, 4:31:08 PM (14 years ago)

Author:

waue

Comment:

--

waue/2009/0617

@@ -207 +207 @@
 
 一開始會出現問你要將工作目錄放在哪裡：在這我們用預設值
-[[Image(2-1.png)]] 
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+[[Image(wiki:waue:2009:0617:2-1.png)]] 
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@@ -218 +220 @@
 || window -> || open pers.. -> || other.. -> || map/reduce|| 
 
-[[Image(win-open-other.png)]] 
+[[Image(wiki:waue:2009:0617:win-open-other.png)]] 
 
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 設定要用 Map/Reduce 的視野
-[[Image(2-2.png)]] 
+[[Image(wiki:waue:2009:0617:2-2.png)]] 
 
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 使用 Map/Reduce 的視野後的介面呈現
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+[[Image(wiki:waue:2009:0617:2-3.png)]] 
 
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@@ -235 +237 @@
 
  || file ->  || new ->  || project ->  || Map/Reduce ->  || Map/Reduce Project -> ||  next || 
-[[Image(file-new-project.png)]]
+[[Image(wiki:waue:2009:0617:file-new-project.png)]]
 
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 建立mapreduce專案(1)
 
-[[Image(2-4.png)]] 
+[[Image(wiki:waue:2009:0617:2-4.png)]] 
 
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 }}}
 
-[[Image(2-4-2.png)]]
+[[Image(wiki:waue:2009:0617:2-4-2.png)]]
 
 
@@ -266 +268 @@
  Step1. 右鍵點選project的properties做細部設定
 
-[[Image(2-5.png)]]
+[[Image(wiki:waue:2009:0617:2-5.png)]]
 
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@@ -273 +275 @@
 
 hadoop的javadoc的設定(1)
-[[Image(2-5-1.png)]]
+[[Image(wiki:waue:2009:0617:Image(2-5-1.png)]]
 
  * java Build Path -> Libraries -> hadoop-0.20.0-ant.jar
@@ -288 +290 @@
 ------------
  Step3. hadoop的javadoc的設定完後(2)
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+[[Image(wiki:waue:2009:0617:Image(2-5-2.png)]]
 
 ------------
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  * javadoc location -> 輸入：file:/usr/lib/jvm/java-6-sun/docs/api/
  
-[[Image(2-5-3.png)]]
+[[Image(wiki:waue:2009:0617:2-5-3.png)]]
 
 -----
@@ -305 +307 @@
 --------
  Step1. 視窗右下角黃色大象圖示"Map/Reduce Locations tag" -> 點選齒輪右邊的藍色大象圖示：
-[[Image(2-6.png)]]
+[[Image(wiki:waue:2009:0617:2-6.png)]]
 
 -------------
  Step2. 進行eclipse 與 hadoop 間的設定(2)
-[[Image(2-6-1.png)]]
+[[Image(wiki:waue:2009:0617:2-6-1.png)]]
 
 {{{
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 設定完後，可以看到下方多了一隻藍色大象，左方展開資料夾也可以秀出在hdfs內的檔案結構
-[[Image(2-6-2.png)]]
+[[Image(wiki:waue:2009:0617:2-6-2.png)]]
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@@ -340 +342 @@
  
  || File ->  || new ->  || mapper || 
-[[Image(file-new-mapper.png)]]
+[[Image(wiki:waue:2009:0617:file-new-mapper.png)]]
 
 -----------
@@ -346 +348 @@
  2. create
  
-[[Image(3-1.png)]]
+[[Image(wiki:waue:2009:0617:3-1.png)]]
 {{{
 #!sh
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 建立mapper.java後，貼入程式碼
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+[[Image(wiki:waue:2009:0617:3-2.png)]]
 
 ------------
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  * File -> new -> reducer
-[[Image(file-new-reducer.png)]]
+[[Image(wiki:waue:2009:0617:file-new-reducer.png)]]
 
 -------
  2. create
-[[Image(3-3.png)]]
+[[Image(wiki:waue:2009:0617:3-3.png)]]
 
 {{{
@@ -437 +439 @@
 
  * File -> new -> Map/Reduce Driver
-[[Image(file-new-mr-driver.png)]]
+[[Image(wiki:waue:2009:0617:file-new-mr-driver.png)]]
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@@ -445 +447 @@
 
 建立WordCount.java，此檔用來驅動mapper 與 reducer，因此選擇 Map/Reduce Driver
-[[Image(3-4.png)]]
+[[Image(wiki:waue:2009:0617:3-4.png)]]
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@@ -499 +501 @@
 
 三個檔完成後並存檔後，整個程式建立完成
-[[Image(3-5.png)]]
+[[Image(wiki:waue:2009:0617:3-5.png)]]
 
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@@ -518 +520 @@
    * 右鍵點選WordCount.java -> run as -> run on Hadoop ：沒有效果
    
-[[Image(run-on-hadoop.png)]]
+[[Image(wiki:waue:2009:0617:run-on-hadoop.png)]]
 
  * 因此，4.1 提供一個eclipse 上解除 run-on-hadoop 封印的方法。而4.2 則是避開run-on-hadoop 這個功能，用command mode端指令的方法執行。
@@ -616 +618 @@
  * 而回到eclipse視窗，我們可以看到下方視窗run完的job會呈現出來；左方視窗也多出output資料夾，part-r-00000就是我們的結果檔
  
-[[Image(4-1.png)]]
+[[Image(wiki:waue:2009:0617:4-1.png)]]
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  * 因為有設定完整的javadoc, 因此可以得到詳細的解說與輔助
-[[Image(4-2.png)]]
+[[Image(wiki:waue:2009:0617:4-2.png)]]
 
  === make output ===