Changes between Version 1 and Version 2 of Hadoop_StandardAlone


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Timestamp:
Jul 18, 2011, 12:25:47 PM (13 years ago)
Author:
waue
Comment:

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  • Hadoop_StandardAlone

    v1 v2  
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     10 = 範例一：使用 cat 當 mapper，使用 wc 當 reducer =
     11
     12 * 用 Standard Alone Mode 跑 hadoop code ( using streaming example )
     13{{{
     14hadoop@lucid:~$ cd /opt/hadoop
     15hadoop@lucid:/opt/hadoop$ bin/hadoop jar ./contrib/streaming/hadoop-0.20.2-streaming.jar -input input -output output -mapper /bin/cat -reducer /usr/bin/wc
     16}}}
     17
     18 * 比較：使用 單機安裝模式
     19{{{
     20hadoop@lucid:~$ cd /opt/hadoop
     21// 設定 core-site.xml, hdfs-site.xml, mapred-site.xml
     22hadoop@lucid:/opt/hadoop$ bin/hadoop namenode -format
     23hadoop@lucid:/opt/hadoop$ bin/start-all.sh
     24hadoop@lucid:/opt/hadoop$ bin/hadoop fs -put conf input
     25hadoop@lucid:/opt/hadoop$ bin/hadoop jar ./contrib/streaming/hadoop-0.20.2-streaming.jar -input input -output output -mapper /bin/cat -reducer /usr/bin/wc
     26}}}