hadoop 常见异常的处理方法
http://hi.baidu.com/xixitie/blog/item/a32f6913cacefb145aaf53dd.html
http://blog.csdn.net/zyj8170/article/details/6037934
http://hi.baidu.com/dtzw/blog/item/38c14aa7fede4598d04358bb.html
http://blog.sina.com.cn/s/blog_632eba590100kv5w.html
core-site.xml的配置

<configuration>  <property>    <name>fs.default.name</name>    <value>hdfs://localhost:9000</value>  </property>  <property>    <name>mapred.job.tracker</name>    <value>hdfs://localhost:9001</value>  </property>  <property>    <name>dfs.replication</name>    <value>1</value>  </property></configuration>