hadoop运行streaming.jar权限不够
/usr/local/hadoop/share/hadoop/tools/lib/hadoop-streaming-2.6.5.jar \
-file /home/hadoop/mapper.py -mapper /home/hadoop/mapper.py \
-file /home/hadoop/reducer.py -reducer /home/hadoop/reducer.py \
-input /test/f1 -output /out
bash: /usr/local/hadoop/share/hadoop/tools/lib/hadoop-streaming-2.6.5.jar: 权限不够