CDH相当于一个大的容器，将各种组件很好的协调分配组合在一起，去掉了我们烦躁的配置和安装操作。今天把安装步骤记下来，以后用到的时候来看。

1    (修改) 配置文件      vi /etc/selinux/config —> SELINUX=disabled

2    安装JDK   配置环境变量

rpm -ivh 
rpm  -ivh oracle-j2sdk1.8-1.8.0+update181-1.x86_64.rpm
vi  /etc/profile 
export    JAVA_HOME=/usr/java/jdk1.8.0_181-cloudera/
export    CLASSPATH=.:$CLASSPATH:$JAVA_HOME/lib
export    PATH=$PATH:$JAVA_HOME/bin

source /etc/profile 
java -version  

[root@doitcdh cloudera-repos-6.2.0]# java  -version 
java version "1.8.0_181"
Java(TM) SE Runtime Environment (build 1.8.0_181-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.181-b13, mixed mode)

3    创建一个文件夹   存储  mysql驱动包

mkdir -p /usr/share/java
mysql-connector-java.jar
[root@doitcdh java]# pwd
/usr/share/java

4    安装mysql   可以使用在线或者离线安装   可参考之前笔记文档

5    开启root用户远程登录权限

mysql> grant all privileges on *.* to 'root'@'%' identified by 'root' with grant option; 
mysql> flush privileges;

6      创建数据库给后续服务使用

create database cmserver default charset utf8 collate utf8_general_ci; 
grant all on cmserver.* to 'root'@'%' identified by 'root'; 
 #给hive 
 create database metastore default charset utf8 collate utf8_general_ci;
 grant all on metastore.* to 'root'@'%' identified by 'root'; 
 # 给CM的activity mornitor 
 create database amon default charset utf8 collate utf8_general_ci; 
 grant all on amon.* to 'root'@'%' identified by 'root'; 
 # 给CM的Reports Manager 
 create database rman default charset utf8 collate utf8_general_ci; 
 grant all on rman.* to 'root'@'%' identified by 'root'; 
 create database oozie default charset utf8 collate utf8_general_ci; 
 grant all on oozie.* to 'root'@'%' identified by 'root'; 
 create database hue default charset utf8 collate utf8_general_ci; 
 grant all on hue.* to 'root'@'%' identified by 'root';

7    安装并开启http服务

 yum -y install httpd 
 systemctl start httpd 
 systemctl enable httpd.service 设置httpd服务开机自启

8     配置创建本地仓库

mkdir -p /var/www/html/cloudera-repos/
 mv /opt/apps/cloudera-repos-6.2.0  /var/www/html/cloudera-repos/cm6
 cd  /var/www/html/cloudera-repos/cm6
 yum -y  install createrepo
 createrepo .

9    配置yum源

 vi /etc/yum.repos.d/cloudera-manager.repo
[clouder-manager]
name=Cloudera Manager,Version
baseurl=http://doitcdh/cloudera-repos/cm6/
gpgcheck=1
enabled=1
 yum clean all 
 yum makecache

10   导入  key

rpm --import http://doitcdh/cloudera-repos/cm6/RPM-GPG-KEY-cloudera

11   安装CDH

sudo yum -y install cloudera-manager-daemons
sudo yum -y install cloudera-manager-agent
sudo yum -y install cloudera-manager-server

12   追加内容

 /opt>   mv apps/parcel-6.2.0/*   cloudera/parcel-repo/
 cd   /opt/cloudera/parcel-repo
sha1sum CDH-6.2.0-1.cdh6.2.0.p0.967373-el7.parcel | awk '{ print $1 }' > CDH-6.2.0-1.cdh6.2.0.p0.967373-el7.parcel.sha

13    初始化

 /opt/cloudera/cm/schema/scm_prepare_database.sh mysql cmserver root root

14     启动服务

 systemctl start cloudera-scm-server.service

之后去相应的页面完成配置即可。具体安装细节问题参考笔记。