windows配置hadoop环境变量

windows配置hadoop环境变量1.⾸先需要下载 hadoop的tar.gz包，⽬前最新版本是2.9.0 下载地址：
⽂件共享在最下⾯
/releases.html
前提是JDK必须配置成功
我的hadoop是在如图解压在E盘下解压完之后⼤概是2G多需要⼀点时间啊
2.修改etc\hadoop下的⽂件(注意以下配置⽂件下所有的地址都是从Linux集群中的hadoop jar粘贴复制过来的) 4个配置⽂件
core-site.xml
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License. See accompanying LICENSE file.
-->
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>fs.defaultFS</name>
<value>hdfs://master:9000</value>
</property>
<property>
<name>hadoop.tmp.dir</name>
<value>/usr/local/hadoop-2.8.0/tmp</value> //linux集群中的地址
</property>
</configuration>
mapred-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and
limitations under the License. See accompanying LICENSE file.
-->
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name></name>
<value>yarn</value>
</property>
<property>
<name>mapreduce.jobhistory.address</name>
<value>master:10020</value>
</property>
<property>
<name>mapreduce.jobhistory.address</name>
<value>master:19888</value>
</property>
</configuration>
hdfs-site.xml
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!--
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and
limitations under the License. See accompanying LICENSE file.
-->
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>node.secondary.http-address</name>
<value>master:50090</value>
</property>
<property>
<name>dfs.replication</name>
<value>2</value>
</property>
<property>
<name>.dir</name>
<value>file:/usr/local/hadoop-2.8.0/hdfs/name</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>file:/usr/local/hadoop-2.8.0/hdfs/data</value>
</property>
</configuration>
yarn-site.xml
<?xml version="1.0"?>
<!--
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and
limitations under the License. See accompanying LICENSE file.
-->
<configuration>
<!-- Site specific YARN configuration properties -->
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.resourcemanager.address</name>
<value>master:8032</value>
</property>
<property>
<name>yarn.resourcemanager.scheduler.address</name>
<value>master:8030</value>
</property>
<property>
<name>yarn.log-aggregation-enable</name>
<value>true</value>
</property>
<property>
<name>yarn.resourcemanager.resource-tracker.address</name> <value>master:8031</value>
</property>
<property>
<name>yarn.resourcemanager.admin.address</name>
<value>master:8033</value>
</property>
<property>
<name>yarn.resourcemanager.webapp.address</name>
<value>master:8088</value>
</property>
</configuration>
3.配置环境变量
此电脑--属性--⾼级系统设置--环境变量
新建系统变量
变量名:HADOOP_HOME
变量值:你的hadoop位置 E:\hadoop\hadoop-2.8.0\hadoop-2.8.0编辑Path系统路径 %HADOOP_HOME%\bin
然后⼀路确定下来
4.编辑hadoop的⽂件
如下打开 \etc\hadoop\hadoop-enc.cmd⽂件,修改JAVA_HOME为你⾃⼰的jdk路径。

注意你的JDK安装在Program Files⽬录下，名称⽤名称⽤\PROGRA~1\Java 否则中间的空格可能会识别失败。

到此为⽌配置完毕如果不⾏的化可能需要点右键运⾏⼀遍
5.window+r打开 cmd窗⼝输⼊ hadoop测试
配置成功也可以格式化节点具体命令是
1、切换到etc/hadoop⽬录，运⾏hadoop-env.cmd
2、格式化HDFS⽂件系统，切换到bin⽬录然后执⾏命令：hdfs namenode -format。