安装CDH4 (Cloudera Distribution Hadoop)步骤

安装流程

机器和系统

3台服务器，安装centos 6.4 64bit系统，内存8G，磁盘60G，cpu单核

已配置好静态ip，并配置好/etc/hosts

下载cdh4版本

https://www.cloudera.com/content/support/en/downloads.html

点击下载cdh4版本，下载cloudera-manager-installer.bin

赋予执行权限

chmod u+x cloudera-manager-installer.bin

执行安装命令

./cloudera-manager-installer.bin

若遇到如下问题

切换到 permissive模式

/usr/sbin/setenforce 0

修改selinux设置选项

vi /etc/selinux/config

# This file controls the state of SELinux on the system.

# SELINUX= can take one of these three values:

# enforcing - SELinux security policy is enforced.

# permissive - SELinux prints warnings instead of enforcing.

# disabled - No SELinux policy is loaded.

SELINUX=disabled

# SELINUXTYPE= can take one of these two values:

# targeted - Targeted processes are protected,

# mls - Multi Level Security protection.

SELINUXTYPE=targeted

设置SELINUX=disabled，如上图标红处，所展示的那样

重启生效

roboot

配置域名解析

vi /etc/resolv.conf

domain localdomain

search localdomain

nameserver 8.8.8.8 #google域名服务器

nameserver 8.8.4.4 #google域名服务器

测试域名服务

ping www.baidu.com

PING www.a.shifen.com (115.239.210.27) 56(84) bytes of data.

64 bytes from 115.239.210.27: icmp_seq=1 ttl=53 time=6.47 ms

64 bytes from 115.239.210.27: icmp_seq=2 ttl=53 time=6.43 ms

64 bytes from 115.239.210.27: icmp_seq=3 ttl=53 time=6.39 ms

64 bytes from 115.239.210.27: icmp_seq=4 ttl=53 time=6.59 ms

^C

--- www.a.shifen.com ping statistics ---

4 packets transmitted, 4 received, 0% packet loss, time 3478ms

由于访问官方的网络速度缓慢，建议自己搭建yum资源服务器或本地安装rpm

搭建yum资源服务器作为镜像

wget -c -r -np http://archive.cloudera.com/cm4/redhat/6/x86_64/cm/4/

搭建自己的web服务器，推荐apache2

修改本地yum资源仓库

cd /etc/yum.repos.d/

cat cloudera-manager.repo

[cloudera-manager]

name=Cloudera Manager

baseurl=http://archive.cloudera.com/cm4/redhat/6/x86_64/cm/4/

gpgkey = http://archive.cloudera.com/cm4/redhat/6/x86_64/cm/RPM-GPG-KEY-cloudera

gpgcheck=1

修改为自己本地的镜像url替换baseurl，建议设置gpgcheck=0

清空本地yum缓存

yum clean all

查询是否更新

yum search hadoop

一路Next

访问web管理界面

http://<hostname>:7180/cmf/login

访问web失败，需要关闭防火墙，才能正常访问Web管理界面

关闭防火墙

service iptables stop

service iptables status

设置重启服务不启动

chkconfig iptables off

确认

chkconfig –list

iptables 0:关闭 1:关闭 2:关闭 3:关闭 4:关闭 5:关闭 6:关闭

安装成功后界面如下所示：