在linux—ebian 3.2.46）上安装hadoop-1.1.2并测试

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赋予hadoop用户root权限

在/etc/sudoers中加上

hadoop ?ALL=(ALL:ALL) ALL

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su - hadoop登录

root@mydev:/home/hadoop/mapreduce# sudo /opt/hadoop-1.1.2/bin/hadoop fs -ls out_dir/Found 3 items-rw-r--r--   2 root supergroup          0 2013-07-19 00:38 /user/root/out_dir/_SUCCESSdrwxr-xr-x   - root supergroup          0 2013-07-19 00:37 /user/root/out_dir/_logs-rw-r--r--   2 root supergroup         49 2013-07-19 00:38 /user/root/out_dir/part-r-00000root@mydev:/home/hadoop/mapreduce# sudo /opt/hadoop-1.1.2/bin/hadoop fs -ls out_dir/part-r-00000Found 1 items-rw-r--r--   2 root supergroup         49 2013-07-19 00:38 /user/root/out_dir/part-r-00000root@mydev:/home/hadoop/mapreduce# sudo /opt/hadoop-1.1.2/bin/hadoop fs -cat out_dir/part-r-00000abx1appp1apppp1sfe2sfejisfe1zsfesife1

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参考

http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/

http://www.michael-noll.com/tutorials/writing-an-hadoop-mapreduce-program-in-python/

http://wiki.apache.org/hadoop/PythonWordCount