关于上一篇中format aborted in /home/hadoop/name1?解决办法

    上一篇搭建的过程中出现了这样一个警告：WARN common.Util: Path /home/sugar/hadoop-0.21.0/name1 should be specified as a URI in configuration files. Please update hdfs configuration.
   这个问题是不是应该这样理解，你的系统里面已经有了这两个目录，只要你找到对应目录下的这两个目录然后删除。试过之后成功了，但是是不是每次都需要这样呢？
     于是引出下面的这个问题
  Re-format filesystem in /home/sugar/hadoop-0.21.0/name1 ? (Y or N)
    在格式化的时候会出现这个选项，这个时候就很蛋疼，一般我们会输入y，这个很正常，然后后面提示：Format aborted in /home/sugar/hadoop-0.21.0/name1
这个问题着实蛋疼了很久，但是此时如果你输入的是大写的Y，结果会是：13/10/29 17:34:08 INFO namenode.FSNamesystem: defaultReplication = 2
13/10/29 17:34:08 INFO namenode.FSNamesystem: maxReplication = 512
13/10/29 17:34:08 INFO namenode.FSNamesystem: minReplication = 1
13/10/29 17:34:08 INFO namenode.FSNamesystem: maxReplicationStreams = 2
13/10/29 17:34:08 INFO namenode.FSNamesystem: shouldCheckForEnoughRacks = false
13/10/29 17:34:09 INFO security.Groups: Group mapping impl=org.apache.hadoop.security.ShellBasedUnixGroupsMapping; cacheTimeout=300000
13/10/29 17:34:09 INFO namenode.FSNamesystem: fsOwner=sugar
13/10/29 17:34:09 INFO namenode.FSNamesystem: supergroup=supergroup
13/10/29 17:34:09 INFO namenode.FSNamesystem: isPermissionEnabled=true
13/10/29 17:34:09 INFO namenode.FSNamesystem: isAccessTokenEnabled=false accessKeyUpdateInterval=0 min(s), accessTokenLifetime=0 min(s)
13/10/29 17:34:09 INFO common.Storage: Image file of size 111 saved in 0 seconds.
13/10/29 17:34:09 INFO common.Storage: Storage directory /home/sugar/hadoop-0.21.0/name1 has been successfully formatted.
13/10/29 17:34:09 INFO common.Storage: Image file of size 111 saved in 0 seconds.
13/10/29 17:34:09 INFO common.Storage: Storage directory /home/sugar/hadoop-0.21.0/name2 has been successfully formatted.
13/10/29 17:34:09 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at namenode/10.56.255.80
************************************************************/
真是幸福来的太突然啊