前期准备工作：
准备三台centos7 地址分别为 192.168.20.163；192.168.20.162；192.168.20.161
用163这台机器链接外网，并安装manager以及manager需要的数据库mysql
1.关闭防火墙
iptables-save > /root/firewall.rules
systemctl stop firewalld.service
systemctl disable firewalld.service
2.检查 selinux
getenforce
如果返回disabled就可以不用处理。
如果不是则要修改
/etc/selinux/config
中修改
SELINUX=permissive
保存以后执行
setenforce 0
3.ntp
如果是主机，配置ntp server
yum install ntp
编辑 /etc/ntp.conf file to add NTP servers, as in the following example.
server 0.pool.ntp.org
server 1.pool.ntp.org
server 2.pool.ntp.org 在命令行下执行
sudo systemctl start ntpd
sudo systemctl enable ntpd
其他机器配置成和ntp server 同步。
ntpdate -u 192.168.20.163
hwclock --systohc
4.安装python 2.7 系统自带了，这里省略安装步骤。
一、安装 repo库
1.安装repo库
sudo wget https://archive.cloudera.com/cm6/6.0.1/redhat7/yum/cloudera-manager.repo -P /etc/yum.repos.d/
2.Import the repository signing GPG key:
sudo rpm --import https://archive.cloudera.com/cm6/6.0.0/redhat7/yum/RPM-GPG-KEY-cloudera
二、安装jdk 这里不描述
用的版本是：1.8
[root@host03 java]# java -version
openjdk version "1.8.0_171"
安装步骤：
1.sudo yum install oracle-j2sdk1.8
三、安装manager server
sudo yum install cloudera-manager-daemons cloudera-manager-agent cloudera-manager-server
四.安装需要的数据库，这里我选择的是mysql数据库作为元数据库
1.wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm
2.sudo rpm -ivh mysql-community-release-el7-5.noarch.rpm
3.sudo yum update
4.sudo yum install mysql-server
5.sudo systemctl start mysqld
配置数据库，
6.sudo systemctl stop mysqld
7.Move old InnoDB log files /var/lib/mysql/ib_logfile0 and /var/lib/mysql/ib_logfile1 out of /var/lib/mysql/ to a backup location.
8.Determine the location of the option file, my.cnf (/etc/my.cnf by default).参考文件如下，可以直接copy
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
transaction-isolation = READ-COMMITTED
# Disabling symbolic-links is recommended to prevent assorted security risks;
# to do so, uncomment this line:
symbolic-links = 0
key_buffer_size = 32M
max_allowed_packet = 32M
thread_stack = 256K
thread_cache_size = 64
query_cache_limit = 8M
query_cache_size = 64M
query_cache_type = 1
max_connections = 550
#expire_logs_days = 10
#max_binlog_size = 100M
#log_bin should be on a disk with enough free space.
#Replace '/var/lib/mysql/mysql_binary_log' with an appropriate path for your
#system and chown the specified folder to the mysql user.
log_bin=/var/lib/mysql/mysql_binary_log
#In later versions of MySQL, if you enable the binary log and do not set
#a server_id, MySQL will not start. The server_id must be unique within
#the replicating group.
server_id=1
binlog_format = mixed
read_buffer_size = 2M
read_rnd_buffer_size = 16M
sort_buffer_size = 8M
join_buffer_size = 8M
# InnoDB settings
innodb_file_per_table = 1
innodb_flush_log_at_trx_commit = 2
innodb_log_buffer_size = 64M
innodb_buffer_pool_size = 4G
innodb_thread_concurrency = 8
innodb_flush_method = O_DIRECT
innodb_log_file_size = 512M
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
sql_mode=STRICT_ALL_TABLES
9.保证机器启动的时候MySQL自己启动
sudo systemctl enable mysqld
10.启动本次mysql服务器
sudo systemctl start mysqld
11.设置mysql的密码
sudo /usr/bin/mysql_secure_installation
（我的环境中设置的密码是root）
安装jdbc驱动
12.下载，注意这里不能yum安装，会使得jdk变成openjdk
wget https://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java-5.1.46.tar.gz
13.tar zxvf mysql-connector-java-5.1.46.tar.gz
14.
sudo mkdir -p /usr/share/java/
cd mysql-connector-java-5.1.46
sudo cp mysql-connector-java-5.1.46-bin.jar /usr/share/java/mysql-connector-java.jar
配置MySQL里面的数据库
1.登录
mysql -u root -p
（我的环境中设置的密码是root）
2.建立数据库脚本
CREATE DATABASE scm DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON scm.* TO 'scm'@'%' IDENTIFIED BY 'scm';
CREATE DATABASE amon DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON amon.* TO 'amon'@'%' IDENTIFIED BY 'amon';
CREATE DATABASE rman DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON rman.* TO 'rman'@'%' IDENTIFIED BY 'rman';
CREATE DATABASE hue DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON hue.* TO 'hue'@'%' IDENTIFIED BY 'hue';
CREATE DATABASE metastore DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON metastore.* TO 'hive'@'%' IDENTIFIED BY 'hive';
CREATE DATABASE sentry DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON sentry.* TO 'sentry'@'%' IDENTIFIED BY 'centry';
CREATE DATABASE nav DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON nav.* TO 'nav'@'%' IDENTIFIED BY 'nav';
CREATE DATABASE navms DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON navms.* TO 'navms'@'%' IDENTIFIED BY 'navms';
CREATE DATABASE oozie DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci;
GRANT ALL ON oozie.* TO 'oozie'@'%' IDENTIFIED BY 'oozie';
3.SHOW DATABASES;
可以用来检查是否成功
五。安装 cdh manager数据库
1.由于我的cdh manager和 scm数据库都是安装在一台192.168.20.163机器上所以
sudo /opt/cloudera/cm/schema/scm_prepare_database.sh mysql scm scm
2.sudo systemctl start cloudera-scm-server
启动scm server 估计要等待5分钟，指导jetty服务器完全启动
3.http://192.168.20.163:7180
登录 admin admin测试是否安全成功。
| cloudera-manager.repo |