Changes between Initial Version and Version 1 of III140412/Lab22

Timestamp:

Apr 11, 2014, 11:33:04 PM (11 years ago)

Author:

jazz

Comment:

--

III140412/Lab22

@@ +1 @@
+◢ <[wiki:III140412/Lab21 實作二十一]> | <[wiki:III140412 回課程大綱]> ▲ | <[wiki:III140412/Lab23 實作二十三] > ◣
+
+= 實作二十二 Lab22 =
+
+{{{
+#!html
+<p style="text-align: center;"><big style="font-weight: bold;"><big>透過 MapReduce 的設定檔傳遞參數<br/> Passing Arguments to Mapper and Reducer with Configuration</big></big></p>
+}}}
+
+[[PageOutline]]
+
+{{{
+#!text
+請先連線至 nodeN.3du.me , N 為您的報名編號
+}}}
+
+{{{
+cd ~/hadoop_labs/lab013
+ant
+hadoop fs -put l13_input l13_input
+hadoop jar WordCount.jar l13_input l13_output
+hadoop fs -cat l13_output/part-r-00000
+hadoop jar WordCount.jar -Dwordcount.case.sensitive=false l13_input l13_output2
+hadoop fs -cat l13_output2/part-r-00000
+}}}
+
+ * Reference:
+  * http://hadoop.apache.org/docs/r1.0.4/api/org/apache/hadoop/conf/Configuration.html
+   * org.apache.hadoop.conf.Configuration.setBoolean(String name, boolean value)
+   * org.apache.hadoop.conf.Configuration.getBoolean(String name, boolean defaultValue)
+  * [http://hadoop.apache.org/docs/r1.0.4/api/org/apache/hadoop/mapreduceMapper.html#setup%28org.apache.hadoop.mapreduce.Mapper.Context%29 org.apache.hadoop.mapreduce.Mapper.setup(Mapper.Context context)]
+  * [http://hadoop.apache.org/docs/r1.0.4/api/org/apache/hadoop/mapreduce/JobContext.html#getConfiguration%28%29 org.apache.hadoop.mapreduce.JobContext.getConfiguration()]      
+  * http://www.cloudera.com/content/cloudera-content/cloudera-docs/HadoopTutorial/CDH4/Hadoop-Tutorial/ht_topic_7_1.html
+
+== 實作習題 ==
+
+ <問題 1>