lenovo@lenovo-PC ~
$ cd ..
lenovo@lenovo-PC /home
$ cd hadoop1
-bash: cd: hadoop1: No such file or directory
lenovo@lenovo-PC /home
$ cd ../hadoop1
lenovo@lenovo-PC /hadoop1
$ bin/hadoop namenode -format
[INFO ][mgmnt ] Local JMX connector started
13/07/03 15:44:30 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = lenovo-PC/10.6.3.180
STARTUP_MSG: args = [-format]
STARTUP_MSG: version = 1.1.2
STARTUP_MSG: build = https://svn.apache.org/repos/asf/hadoop/common/branches/b ranch-1.1 -r 1440782; compiled by 'hortonfo' on Thu Jan 31 02:03:24 UTC 2013
************************************************************/
Re-format filesystem in \tmp\hadoop-lenovo\dfs\name ? (Y or N) Y
13/07/03 15:44:35 INFO util.GSet: VM type = 32-bit
13/07/03 15:44:35 INFO util.GSet: 2% max memory = 20.0 MB
13/07/03 15:44:35 INFO util.GSet: capacity = 2^22 = 4194304 entries
13/07/03 15:44:35 INFO util.GSet: recommended=4194304, actual=4194304
13/07/03 15:44:35 INFO namenode.FSNamesystem: fsOwner=lenovo
13/07/03 15:44:35 INFO namenode.FSNamesystem: supergroup=supergroup
13/07/03 15:44:35 INFO namenode.FSNamesystem: isPermissionEnabled=true
13/07/03 15:44:35 INFO namenode.FSNamesystem: dfs.block.invalidate.limit=100
13/07/03 15:44:35 INFO namenode.FSNamesystem: isAccessTokenEnabled=false accessK eyUpdateInterval=0 min(s), accessTokenLifetime=0 min(s)
13/07/03 15:44:35 INFO namenode.NameNode: Caching file names occuring more than 10 times
13/07/03 15:44:36 INFO common.Storage: Image file of size 112 saved in 0 seconds .
13/07/03 15:44:36 INFO namenode.FSEditLog: closing edit log: position=4, editlog =\tmp\hadoop-lenovo\dfs\name\current\edits
13/07/03 15:44:36 INFO namenode.FSEditLog: close success: truncate to 4, editlog =\tmp\hadoop-lenovo\dfs\name\current\edits
13/07/03 15:44:36 INFO common.Storage: Storage directory \tmp\hadoop-lenovo\dfs\ name has been successfully formatted.
13/07/03 15:44:36 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at lenovo-PC/10.6.3.180
************************************************************/
第三步,启动Hadoop,执行命令: bin/start-all.sh
需要输入3次密码