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想了解hadoop，所以就下了最新的文件，搭建相关的环境，以下为自己在win7上搭建hadoop的相关步骤。
1、下载hadoop，用winRAR解压。（路径不能有空格）
2、安装java，此处就不做讲解了。（java路径不能有空格）
3、配置hadoop的环境变量HADOOP_HOME=”HADOOP的安装目录”
4、在环境变量的PATH中加入HADOOP的安装目录/bin
5、修改hadoop目录下etc/hadoop/hadoop-env.cmd文件中的JAVA_HOME变量为当前java的安装路径。
6、下载hadoop-commin-2.2.zip,因为在windows下运行，压缩包里面缺少 winutils.exe, hadoop.dll等文件，下载完成后，将要报下面的bin目录下的所有文件全部拷贝到hadoop目录下的bin文件夹下。
7、修改配置文件，以下四个文件全部在hadoop目录下的etc/hadoop目录下
修改core-site.xml，如下：
fs.defaultFS
hdfs://localhost:9000
修改hdfs-site.xml如下：
dfs.replication
1
dfs.namenode.name.dir
file:/hadoop/data/dfs/namenode
dfs.datanode.data.dir
file:/hadoop/data/dfs/datanode
修改yarn-site.xml如下：
yarn.nodemanager.aux-services
mapreduce_shuffle
yarn.nodemanager.aux-services.mapreduce.shuffle.class
org.apache.hadoop.mapred.ShuffleHandler
修改mapred-site.xml如下：
mapreduce.framework.name
yarn
然后打开cmd，运行hadoop namenode -format命令,运行结果基本如下：
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Users\abhijitg>cd c:\hadoop\bin
c:\hadoop\bin>hdfs namenode -format
13/11/03 18:07:47 INFO namenode.NameNode: STARTUP_MSG:
/************************************************************
STARTUP_MSG: Starting NameNode
STARTUP_MSG: host = ABHIJITG/x.x.x.x
STARTUP_MSG: args = [-format]
STARTUP_MSG: version = 2.2.0
STARTUP_MSG: classpath =
STARTUP_MSG: build = Unknown -r Unknown; compiled by ABHIJITG on 2013-11-01T13:42Z
STARTUP_MSG: java = 1.7.0_03
************************************************************/
Formatting using clusterid: CID-1af0bd9f-efee-4d4e-9f03-a0032c22e5eb
13/11/03 18:07:48 INFO namenode.HostFileManager: read includes:
HostSet(
)
13/11/03 18:07:48 INFO namenode.HostFileManager: read excludes:
HostSet(
)
13/11/03 18:07:48 INFO blockmanagement.DatanodeManager: dfs.block.invalidate.limit=1000
13/11/03 18:07:48 INFO util.GSet: Computing capacity for map BlocksMap
13/11/03 18:07:48 INFO util.GSet: VM type = 64-bit
13/11/03 18:07:48 INFO util.GSet: 2.0% max memory = 888.9 MB
13/11/03 18:07:48 INFO util.GSet: capacity = 2^21 = 2097152 entries
13/11/03 18:07:48 INFO blockmanagement.BlockManager: dfs.block.access.token.enable=false
13/11/03 18:07:48 INFO blockmanagement.BlockManager: defaultReplication = 1
13/11/03 18:07:48 INFO blockmanagement.BlockManager: maxReplication = 512
13/11/03 18:07:48 INFO blockmanagement.BlockManager: minReplication = 1
13/11/03 18:07:48 INFO blockmanagement.BlockManager: maxReplicationStreams = 2
13/11/03 18:07:48 INFO blockmanagement.BlockManager: shouldCheckForEnoughRacks = false
13/11/03 18:07:48 INFO blockmanagement.BlockManager: replicationRecheckInterval = 3000
13/11/03 18:07:48 INFO blockmanagement.BlockManager: encryptDataTransfer = false
13/11/03 18:07:48 INFO namenode.FSNamesystem: fsOwner = ABHIJITG (auth:SIMPLE)
13/11/03 18:07:48 INFO namenode.FSNamesystem: supergroup = supergroup
13/11/03 18:07:48 INFO namenode.FSNamesystem: isPermissionEnabled = true
13/11/03 18:07:48 INFO namenode.FSNamesystem: HA Enabled: false
13/11/03 18:07:48 INFO namenode.FSNamesystem: Append Enabled: true
13/11/03 18:07:49 INFO util.GSet: Computing capacity for map INodeMap
13/11/03 18:07:49 INFO util.GSet: VM type = 64-bit
13/11/03 18:07:49 INFO util.GSet: 1.0% max memory = 888.9 MB
13/11/03 18:07:49 INFO util.GSet: capacity = 2^20 = 1048576 entries
13/11/03 18:07:49 INFO namenode.NameNode: Caching file names occuring more than 10 times
13/11/03 18:07:49 INFO namenode.FSNamesystem: dfs.namenode.safemode.threshold-pct = 0.9990000128746033
13/11/03 18:07:49 INFO namenode.FSNamesystem: dfs.namenode.safemode.min.datanodes = 0
13/11/03 18:07:49 INFO namenode.FSNamesystem: dfs.namenode.safemode.extension = 30000
13/11/03 18:07:49 INFO namenode.FSNamesystem: Retry cache on namenode is enabled
13/11/03 18:07:49 INFO namenode.FSNamesystem: Retry cache will use 0.03 of total heap and retry cache entry expiry time
is 600000 millis
13/11/03 18:07:49 INFO util.GSet: Computing capacity for map Namenode Retry Cache
13/11/03 18:07:49 INFO util.GSet: VM type = 64-bit
13/11/03 18:07:49 INFO util.GSet: 0.029999999329447746% max memory = 888.9 MB
13/11/03 18:07:49 INFO util.GSet: capacity = 2^15 = 32768 entries
13/11/03 18:07:49 INFO common.Storage: Storage directory \hadoop\data\dfs\namenode has been successfully formatted.
13/11/03 18:07:49 INFO namenode.FSImage: Saving image file \hadoop\data\dfs\namenode\current\fsimage.ckpt_00000000000000
00000 using no compression
13/11/03 18:07:49 INFO namenode.FSImage: Image file \hadoop\data\dfs\namenode\current\fsimage.ckpt_0000000000000000000 o
f size 200 bytes saved in 0 seconds.
13/11/03 18:07:49 INFO namenode.NNStorageRetentionManager: Going to retain 1 images with txid >= 0
13/11/03 18:07:49 INFO util.ExitUtil: Exiting with status 0
13/11/03 18:07:49 INFO namenode.NameNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down NameNode at ABHIJITG/x.x.x.x
************************************************************/
然后在cmd下切换目录到hadoop目录下的sbin目录下，运行start-all 会打开四个cmd窗口，可以打开浏览器输入 http://localhost:8042以及http://localhost:50070查看是否配置成功！
如果50070打不开，就重新格式化，然后重启hadoop就可以了
win7下安装hadoop2.2.0.涵盖64位,搜素材,soscw.com
win7下安装hadoop2.2.0.涵盖64位
标签：des style http java color os
原文地址：http://my.oschina.net/u/567296/blog/288662