安装Hadoop 1.1.2 (三 安装配置Hadoop)

1 tar -zxvf hadoop-1.1.2.tar.gz

2 在hadoop/conf目录

  (1) 编辑 hadoop-env.sh

     export JAVA_HOME=/usr/java/jdk1.7.0_25

  然后运行hadoop-env.sh

 (2) 编辑 core-site.xml

    <configuration>
  <property>
<name>fs.default.name</name>
     <value>hdfs://yjdabc:9000</value>
   </property>
  <property>
    <name>hadoop.tmp.dir</name>
    <value>/home/yjdabc/hadooptmp</value>
  </property>
</configuration>

(3)配置hdfs-site.xml
 <configuration>
  <property>
  <name>dfs.name.dir</name>
  <value>/home/yjdabc/hadoop-1.1.2/name</value>
 </property>
 <property>
  <name>dfs.data.dir</name>
  <value>/home/yjdabc/hadoop-1.1.2/data</value>
 </property>
 <property>
  <name>dfs.replication</name>
  <value>1</value>
 </property>
</configuration>
(4)配置mapred-site.xml
<configuration>
  <property>
   <name>mapred.job.tracker</name>
   <value>yjdabc:9001</value>
 </property>
</configuration>
(5)配置masters文件和slaves文件
将里面内容改为:yjdabc
(6)vi /etc/hosts

127.0.0.1    yjdabc yjdabc.centOSDomain localhost.localdomain localhost
 ::1         yjdabc yjdabc.centOSDomain localhost6.localdomain6 localhost6
 yjdabc master
 yjdabc slave

3 验证Hadoop(修改配置项后,一定要运行此命令重新配置namenode)
在hadoop/bin目录下
./hadoop namenode -format

4 启动Hadoop
在hadoop/bin目录下
./start-all.sh

5 查看JPS查看hadoop是否完全启动
 [root@localhost bin]# jps
 15219 JobTracker
 15156 SecondaryNameNode
 15495 Jps
 15326 TaskTracker
 15044 DataNode
 14959 NameNode

6 查看集群状态
./hadoop dfsadmin -report
 

posted @ 2013-07-21 21:31  diablo大王  阅读(1111)  评论(0编辑  收藏  举报