Hadoop伪分布式环境配置

Step1:关闭防火墙
  　　service
iptables stop[status]
 　　
service iptables status
 
　　chkconfig --list |grep iptables
  　　chkconfig iptables
off
Step2:修改IP
 　　(重启网卡：service
network restart)
Step3:修改hostname
 　　/etc/hosts
Step4:SSH免密码登陆
 
　　产生密钥(~/.ssh中)ssh-keygen -t
rsa
  　　cd
~/.ssh:cpid_rsa.pub
authorized_keys
Step5:安装JDK
  　/usr/local中环境变量生效source
/etc/profile

Step6:安装Hadoop

　　环境变量/ect/profile
Step7：Hadoop配置文件修改($Hadoop/conf/)
hadoop-env.sh:export
JAVA_HOME=/usr/local/jdk
core-site.xml:
<configuration>
   
<property>
           
<name>fs.default.name</name>
           
<value>hdfs://hadoop:9000</value>
   
</property>
   
<property>
           
<name>fs.tmp.dir</name>
           
<value>/usr/local/hadoop/tmp</value>
   
</property>
</configuration>
hdfs-site.xml:
<configuration>
   
<property>
           
<name>dfs.replication</name>
           
<value>1</value>
   
</property>
   
<property>
           
<name>dfs.permission</name>
           
<value>false</value>
   
</property>
</configuration>
mapred-site.xml:
<configuration>
   
<property>
           
<name>mapred.job.tracker</name>
           
<value>hadoop:9001</value>
   
</property>
</configuration>

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