1：先安装Cygwin
参考http://blog.csdn.net/wind520/article/details/9223003
2：下载
3：解压在C:\cygwin\hadoop1
4：配置
hadoop1/conf下需要配置的文件：
1).hadoop-env.sh
2).core-site.xml
3).hdfs-site.xml
4).mapred-site.xml
如何修改请参考 http://blog.csdn.net/wind520/article/details/9225429
5：启动Hadoop
第一步，在hadoop1目录下创建目录logs，用于保存日志
第二步，Format a new distributed-filesystem: 格式化namenode，创建HDFS
执行命令： bin/hadoop namenode -format
开始没有格式化，导致打不开
- NameNode - http://localhost:50070/
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
lenovo@lenovo-PC /hadoop1
$ bin/start-all.sh
starting namenode, logging to /hadoop1/libexec/../logs/hadoop-lenovo-namenode-lenovo-PC.out
lenovo@localhost's password:
localhost: starting datanode, logging to /hadoop1/libexec/../logs/hadoop-lenovo-datanode-lenovo-PC.out
lenovo@localhost's password:
localhost: starting secondarynamenode, logging to /hadoop1/libexec/../logs/hadoop-lenovo-secondarynamenode-lenovo-PC.out
starting jobtracker, logging to /hadoop1/libexec/../logs/hadoop-lenovo-jobtracker-lenovo-PC.out
lenovo@localhost's password:
localhost: starting tasktracker, logging to /hadoop1/libexec/../logs/hadoop-lenovo-tasktracker-lenovo-PC.out lenovo@lenovo-PC /hadoop1
$ ps
PID PPID PGID WINPID TTY UID STIME COMMAND
59592 1 42744 60224 pty0 1000 15:45:31 /cygdrive/d/java/Tomcat6/jdk/bin/java
58584 58340 58584 58612 pty0 1000 15:43:22 /usr/bin/bash
62296 1 42744 63540 pty0 1000 15:45:48 /cygdrive/d/java/Tomcat6/jdk/bin/java
58844 58584 58844 58936 pty0 1000 15:54:51 /usr/bin/ps
62812 1 62208 63448 ? 1000 15:45:46 /cygdrive/d/java/Tomcat6/jdk/bin/java
58340 1 58340 58340 ? 1000 15:43:22 /usr/bin/mintty lenovo@lenovo-PC /hadoop1
$hadoop只运行3个JVM进程。
hadoop默认的NameNode 和 JobTracker
- NameNode - http://localhost:50070/
- JobTracker - http://localhost:50030/