hadoop 1.2.1 安裝步驟 偽分散式
阿新 • • 發佈：2019-01-11
最近在系統的學習hadoop
課程第一步是安裝hadoop1.x，具體安裝步驟如下：
一、系統安裝
本文使用centos6.5安裝，具體安裝步驟省略
二、jdk安裝
下載jdk1.7.0_51解壓，在環境中
設定環境變數：
vi /etc/profile,新增如下行：
export JAVA_HOME=/usr/local/jdk1.7.0_51export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin 由於在centos下安裝，選擇需要設定jdk版本 update-alternatives --install /usr/bin/java java /export/home/es/jdk1.7.0_51/bin/java 60 update-alternatives --config java
三、linux基本引數設定 設定防火牆： vi /etc/selinux/config
將紅框標示部分，設定為disabled
檢視防火牆情況，並關閉
service iptables status
service ip6tables status
service iptables stop
service ip6tables stop
chkconfig iptables off
chkconfig ip6tables off
將這三個部分的註釋去掉，使用RSA驗證方式vi /etc/ssh/sshd_config RSAAuthentication yes PubkeyAuthentication yes AuthorizedKeysFile .ssh/authorized_keys
生成公鑰
修改hosts檔案：[[email protected] .ssh]$ pwd /export/home/hadoop/.ssh [[email protected] .ssh]$ ssh-keygen -t rsa Generating public/private rsa key pair. ...... [[email protected] .ssh]$ cp id_rsa.pub authorized_keys [[email protected] .ssh]$ ls authorized_keys id_rsa id_rsa.pub
[[email protected] conf]$ more /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
<span>192.168.2.201 vm.master
192.168.2.202 vm.slave1
192.168.2.203 vm.slave2</span>
[[email protected] etc]$ vi /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=vm.master
[[email protected] conf]$ vi core-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>fs.default.name</name>
<value>hdfs://localhost:9000</value>
</property>
</configuration>
[[email protected] conf]$ vi hdfs-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>dfs.replications</name>
<value>1</value>
</property>
</configuration>
[[email protected] conf]$ vi mapred-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<!-- Put site-specific property overrides in this file. -->
<configuration>
<property>
<name>mapred.job.tracker</name>
<value>localhost:9001</value>
</property>
</configuration>
五，嘗試啟動 format namenode
嘗試啟動
搭建完畢